JP6167022B2 - Map information providing apparatus, user terminal, and map information providing method - Google Patents

Description

  The present invention relates to a technique for displaying posted articles on a map.

Conventionally, there is an application that displays an article posted on a microblog such as Twitter (TWITTER is a registered trademark) on a map (for example, Non-Patent Document 1). In this application, when position information is added when an article is posted, an article balloon is displayed at a position on the map corresponding to the position information.
Conventionally, various techniques for providing information related to points on a map have been proposed. For example, in Patent Document 1, information is collected based on a search condition designated by the user, and a point guide map is provided by selecting information to be displayed from the searched information.

“TwitterMap”, where location information is displayed on Google Maps when tweeted on Twitter, [online], October 4, 2012, Gigazine, [Search September 30, 2013], Internet (URL: http : //gigazine.net/news/20121004-twittermap/)

JP 2007-11116 A

  By the way, when the user terminal that displays a map is a mobile terminal device such as a smartphone, the display area (that is, the geographical area of the displayed map) displayed on the display unit is limited because the screen size is limited. The range is inevitably narrow. In addition, it is assumed that a three-dimensional map that has been used in recent years is often displayed with a large enlargement ratio. However, if the enlargement ratio is large, the range of the display area is narrowed. When the display area is small, the number of articles displayed on the map may not be sufficient. In addition, there may be a case where the number of articles is not enough depending on a time zone such as a region or a suburb or a night time. In such a case, if the user of the user terminal scrolls the map, it can be confirmed whether there are other articles in the surrounding area (hereinafter referred to as “peripheral area”) except the display area, but there is no clue. Scrolling is burdensome for the user.

In Patent Literature 1, a display target is selected based on display conditions such as display density and number of displays so that a map having a sufficient amount of information can be provided so that the number of icons is not too small. However, since the user only selects information in the display area, the user cannot know information on the peripheral area.
In view of such circumstances, the present invention provides a user with an article that is estimated to be useful to the user among articles related to a point in a peripheral area around the display area displayed on the display unit of the user terminal. It is an object of the present invention to provide a map information providing device that can be presented.

In order to solve the above problems, the present invention is a map information providing apparatus that provides a user terminal with map information on which an article related to a point on a map is displayed so that the map information can be displayed on a display unit of the user terminal. A peripheral region article acquisition unit that acquires an article related to a point in the peripheral region excluding the display region, which is a peripheral region of the display region displayed on the display unit of the user terminal, and the peripheral region article acquisition unit Is based on at least one of an index related to the importance level of the article in the peripheral area, an index related to a distance from a point in the display area to a point related to the article, and an index related to the time when the article occurred When the index related to the importance is used, the higher the importance of the article, the higher the value. When the index related to the distance is used, A first score calculation unit that calculates a score that increases as the separation decreases, and calculates a score that increases as the time when the article occurs is closer to the current time when using the index related to the time; and the first score When the score of the article calculated by the calculation unit is higher than a threshold, a candidate determination unit that determines the article as a candidate to be presented in the display area, and the candidate determined by the candidate determination unit in the user terminal So that the article is displayed in the display area, a transmission section that transmits map information to the user terminal, a display area article acquisition section that acquires articles relating to points in the display area, and the display area article acquisition The average value of the index related to the importance of the articles in the display area acquired by the section, the average value of the index related to the distance from the point in the display area to the point to which the article relates, An average score calculation unit that calculates an average score of articles in the display area based on at least one of the average values of the indexes related to the time at which the article in the display area occurs, and the threshold is the first value Provided is a map information providing device that calculates based on the average score calculated by the average score calculation unit based on the same index as that used by one score calculation unit .
The present invention is also a map information providing device that provides a user terminal with map information on which an article about a point on a map is displayed, so that the map information can be displayed on a display unit of the user terminal. A peripheral area of the display area displayed on the display section, the peripheral area article acquiring section for acquiring articles related to points in the peripheral area excluding the display area, and the peripheral area acquired by the peripheral area article acquiring section A score based on at least one of an index related to the importance of an article in the area, an index related to a distance from a point in the display area to a point related to the article, and an index related to the time when the article occurred, When the importance-related index is used, the higher the importance of the article, the higher the value. When the distance-related index is used, the smaller the distance, the higher the value. When using an index related to the time, a first score calculation unit that calculates a score that increases as the time when the article occurs is closer to the current time, and the first score calculation unit calculates the score A candidate determining unit that determines the article as a candidate to be presented in the display area when the score of the article is higher than a threshold; and the candidate article determined by the candidate determining unit in the user terminal is the display area A transmission unit that transmits map information to the user terminal, and a storage unit that stores the average number of articles in a past period for each of a plurality of unit areas that do not overlap with each other. The peripheral area article acquisition unit determines a range of the peripheral area estimated to include a predetermined number of articles from the average expression number in each unit area, and determines the determined circumference Providing map information providing apparatus for acquiring the article about the point within the range of the region.

Further, the present invention provides a display unit that displays map information on which articles related to points on a map are displayed, and a peripheral region around the display region displayed on the display unit, excluding the display region Peripheral area article acquisition unit for acquiring articles related to points in the site, an index related to the importance of articles in the peripheral area acquired by the peripheral area article acquisition unit, and points related to the articles from the points in the display area Is a score based on at least one of an index related to the distance to and an index related to the time when the article occurred, and when the index related to the importance is used, the higher the importance of the article, the higher the value, When the index related to the distance is used, the smaller the distance is, the higher the value is. When the index related to the time is used, the time when the article is generated is closer to the current time. A first score calculation unit that calculates a score that increases, and a candidate that is determined as a candidate to be presented in the display area when the score of the article calculated by the first score calculation unit is higher than a threshold value A determination unit; a display control unit that controls the display unit such that the candidate article determined by the candidate determination unit is displayed in the display region; and a display region that acquires articles relating to points in the display region An average value of an index related to the importance of articles in the display area acquired by the article acquisition unit, the display area article acquisition unit, and an index related to a distance from the point in the display area to a point related to the article Average score calculation that calculates an average score of articles in the display area based on at least one of an average value and an average value of an index related to the time at which the article in the display area occurs When, wherein the threshold value provides a user terminal for calculating based on the average score in which the average score calculating unit is calculated based on the same indicators and indices first score calculating unit used.

Further, the present invention is a map information providing method for providing a user terminal with map information on which an article relating to a point on a map is displayed so that the map information can be displayed on a display unit of the user terminal. An article related to a point in the peripheral area excluding the display area, which is a peripheral area of the display area displayed on the display unit, and an index related to the importance of the acquired article in the peripheral area, and the display A score based on at least one of an index related to a distance from a point in the area to a point related to the article and an index related to the time when the article occurred, and when the index related to the importance is used, the article The higher the importance, the higher the value. When the index related to the distance is used, the smaller the distance, the higher the value. When the index related to the time is used A score that increases as the time when the article occurs is closer to the current time, and when the calculated score of the article in the peripheral area is higher than a threshold, a candidate that presents the article in the display area determined as, at the user terminal, as the candidate of the article was determined boss is displayed in the display area, and transmits the map information to the user terminal, it retrieves the article on the point within the display area, The average value of the index related to the importance of the articles in the display area acquired, the average value of the index related to the distance from the point in the display area to the point related to the article, and the article in the display area An average score of articles in the display area is calculated based on at least one of the average values of the indices related to the time of occurrence, and the threshold is the same as the index used for calculating the scores Providing map information providing method for calculating based on the average score calculated on the basis of the target.

  According to the map information providing device, the user terminal, and the map information providing method according to the present invention, among articles related to points in the peripheral area around the display area displayed on the display unit of the user terminal, it is useful for the user. An article estimated to be present can be presented to the user within the display area displayed on the display unit.

1 is a block diagram of a blog map display system according to a first embodiment of the present invention. It is an external view which shows the portable terminal device which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the portable terminal device which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the blog map provision server which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the function structure of the blog map provision server which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the display area and peripheral area which concern on the 1st Embodiment of this invention. It is a figure which shows an example of the articles displayed on the display area and peripheral area which concern on the 1st Embodiment of this invention. It is a block diagram which shows the detailed functional structure of the importance parameter | index calculation part which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the memory content of the analysis result table which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the memory content of the additional information table which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the flow of the article storage and analysis process which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the flow of the map information provision process which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the memory content of the order | rank table which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the screen transition which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the display area before the transition which concerns on the 1st Embodiment of this invention, and the display area after transition. It is a block diagram which shows the function structure of the portable terminal device which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the function structure of the blog map provision server which concerns on the 2nd Embodiment of this invention. It is a sequence chart which shows the flow of the process which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the function structure of the blog map provision server which concerns on the modification of this invention. It is explanatory drawing which concerns on the modification of this invention.

Embodiments according to the present invention will be described below with reference to the accompanying drawings.
<First Embodiment>
<Configuration>
FIG. 1 is a block diagram of a blog map display system 1 according to a first embodiment of the present invention. As illustrated, the blog map display system 1 includes a network MN, a blog server 20 connected to the network MN, a blog map providing server 30 and a map information providing server 40, and a plurality of mobile terminal devices 10 connected to the network MN. Is provided. The network MN is a communication network including a mobile communication network and the Internet network. The blog map display system 1 displays an article having a geographical attribute belonging to the display area in the map display area (geographic range of the map) displayed on the display unit of the mobile terminal device (user terminal) 10. It is something to be made. Examples of articles include daily diaries (blogs) on the Web and microblogs (for example, tweets) described in short sentences of about 140 characters. In the present embodiment, a tweet is taken as an example as an article.

  The blog server 20 is a server device that stores articles posted all over the world by users registered for use in the blog service provided by the server, and provides articles to the blog map providing server 30.

  Here, the article includes a user name (or account name), a profile icon such as a photo image, posted text (character string), and posted date / time. In the posted text, in addition to a character string (hereinafter referred to as body text) corresponding to the utterance of the poster, a URL indicating the location of the information source and additional information (hereinafter referred to as information URL) and the location of the attached photo image data There may be a case where a photo URL to be displayed and a user name (so-called “mention”) of another user starting with “@” are included. A hyperlink is set in the information URL, and when the user performs an operation of tapping the information URL, a transition is made to a linked web page. The information URL is usually a character string starting with “http: //” or “https: //”, but a shortened URL obtained by shortening the character string to a predetermined number of characters (for example, 22 characters) or less is used as the display URL. Used. The photo URL includes a predetermined character string according to an image attachment API (Application Program Interface) used when the poster attaches a photo. Examples of the predetermined character string include “pic.twitter.com/”, “twitpic.com/”, “p.twipple.jp/”, and the like.

  The article may be further attached with a profile text, which is a self-introduction sentence of the user, and a geotag added to the article at the time of posting. The profile describes the user's name, occupation, residence, work, hobbies, etc., and can be arbitrarily edited by the user. The geotag is the position information of the terminal used by the user at the time of posting. For example, when the user uses a mobile terminal device with a built-in GPS (Global Positioning System), the positioning result of the terminal position by GPS is used as the geotag. It is done.

In addition, the blog server 20 stores statistical data such as the number of reposts (the number of retweets) in which the article has been reposted (retweeted) in association with each article. 30 is provided.
Furthermore, the blog server 20 stores the attribute information of each user in association with the user ID. Here, the user attribute information is demographic attribute information of each user such as age, sex, occupation, residence, married / unmarried, and the blog server 20 sends the user attribute information to the blog map providing server 30. Provided with the article.

  The map information providing server 40 is a server device that provides map image data, and provides map image data in a requested geographical range in response to a request from the outside. In the present embodiment, the map image data may be a map image in either a raster format or a vector format. A raster-format map image is an image expressed by grid-like pixels, and each time a map enlargement rate or display target area to be displayed on the mobile terminal device 10 changes, new map image data is converted to map information. Provided from the providing server 40. Examples of the raster image include JPEG and GIF. On the other hand, a map image in vector format expresses an image with the coordinates of the points and the drawing parameters such as the parameters of the lines and planes connecting the points and the fill, and the image is calculated each time it is displayed. Reproduce.

The network MN has a large number of radio base stations (not shown) and relay devices (not shown), and provides mobile communication services to the mobile terminal device 10.
FIG. 2 is a front view showing the appearance of the mobile terminal device 10 according to the embodiment of the present invention, and FIG. 3 is a block diagram showing the configuration of the mobile terminal device 10. The mobile terminal device 10 receives map information from the blog map providing server 30 via the network MN, and displays the received map information.
2 and 3, the mobile terminal device 10 transmits and receives data between the touch panel (display unit) 12 on which the display area AP is displayed, the other mobile terminal device 10 and the Internet. Communication interface 13, storage unit 14, microphone 15 and speaker 16 used during a call, and CPU (Central Processing Unit) 11 that controls these units. The storage unit 14 includes a RAM (Random Access Memory) and a ROM (Read Only Memory) as main storage devices, and further includes a removable recording medium. In the ROM, a blog map application is stored as an application program that is executed when the mobile terminal device 10 is provided with a blog map service.

  The touch panel 12 is configured by bonding a transparent touch sensor unit capable of detecting a touch operation between a cover glass and a display unit (for example, a liquid crystal display, an organic EL (Electroluminescence) display, etc.). For this reason, the user can input an instruction by performing a touch operation on an object displayed in the display area AP. For example, the user can input an instruction to select an object (for example, an activation icon or an article image of various applications including a blog map application) by a touch operation. The touch sensor unit is preferably an accurate multi-point detection (multi-point detection) among a resistance film method, a capacitance method (surface type or projection type), an ultrasonic surface acoustic wave method, an optical method, and other detection methods. A projected capacitive touch sensor unit capable of detecting a touch) is employed.

  On the touch panel 12, in addition to an area for displaying icons such as a home button, a return button, other instruction input icons, a communication state, a remaining battery level, and the like, a WEB page acquired via the network MN, various menu pages, and the like are displayed. The In the blog map application, the map information of the display area AP is displayed on the touch panel 12.

  The blog map providing server 30 generates map information in which a plurality of articles belonging to the display area AP included in the display request from the user are displayed on the map among the articles having the geographical attribute provided from the blog server 20. And provided to the mobile terminal device 10 of the user. In the map information, the article is displayed on the map as a balloon image (article image) including a profile icon, a user name, a posting date and posting text, and if the article contains an information URL, the information URL is also displayed. Displayed in the balloon image. If a photo URL is included, a photo image is taken from the photo URL and displayed in the balloon image.

  The blog map providing server 30 acquires posted articles from the blog server 20 in real time. Further, when a blog map display request is received from the user's mobile terminal device 10 who is a user of the blog map providing service, it is defined by the geographical range (the range of the map displaying the article) included in the display request. Map image data of the map is acquired from the map information providing server 40. In the blog map providing service, articles having geographical attributes are displayed. An article having a geographical attribute is an article to which a geotag indicating the position of a contributor at the time of posting is attached, or an article including a place name in posted text. That is, when a geotag is not attached to an article and a place name cannot be derived by morphological analysis of the article, the article does not have a geographical attribute, and thus is not a display target in the blog map providing service.

FIG. 4 is a block diagram showing a hardware configuration of the blog map providing server 30 according to the present embodiment, and FIG. 5 is a block diagram showing a functional configuration of the server.
As shown in FIG. 4, the blog map providing server 30 includes a CPU (Central Processing Unit) 31 that controls the entire apparatus, a RAM (Random Access Memory) 34a that functions as a work area of the CPU 31, and a ROM (Read that stores various programs). Only Memory) 34b, a storage device 34c for storing various programs and data, an input unit 35 including a keyboard and a mouse, a display 32 for displaying images, and a transmission / reception unit for communicating with an external device via the network MN 33. The ROM 34b stores an article analysis program for causing the computer to execute the article analysis process according to the present embodiment and a map information providing program for causing the computer to execute the map information providing process, and the CPU 31 executes these programs. Thus, each function according to the present embodiment is realized.

  As shown in FIG. 5, the blog map providing server 30 includes a peripheral area article acquisition unit 51, a display area article acquisition unit 52, an importance index calculation unit 53a, a distance index calculation unit 53b, and a time index calculation unit 53c, The score calculation part 54, the 2nd score calculation part 55, the average score calculation part 56, the candidate determination part 57, and the transmission part 58 are provided. The functions of the importance index calculating unit 53a, the distance index calculating unit 53b, the time index calculating unit 53c, the first score calculating unit 54, the second score calculating unit 55, the average score calculating unit 56, and the candidate determining unit 57 are the CPU 31. It is realized by. The function of the transmission unit 58 is realized by the CPU 31 and the transmission / reception unit 33.

  The peripheral area article acquisition unit 51 acquires articles about points in the peripheral area AQ, and the display area article acquisition unit 52 acquires articles about points in the display area AP. As shown in FIG. 6, the peripheral area AQ is an area (shaded portion in the figure) excluding the display area AP among the areas around the display area AP. In the illustrated example, the peripheral area AQ is defined as a square area inscribed by a circle that is separated from the center coordinate C of the display area AP by a predetermined distance r.

FIG. 7 is an example showing an example of articles related to points in the display area AP and the peripheral area AQ. As shown in the figure, there are articles p ₁ and p ₂ regarding points for the display area AP, and articles q _{1 to} q ₆ regarding points regarding the peripheral area AQ. These articles are supplied from the blog server 20 and stored in the analysis result table TBL11 (FIG. 9) of the storage device 34c in association with the latitude / longitude information. The display area article acquisition unit 52 refers to the analysis result table TBL11, and articles p ₁ and p ₂ having latitude and longitude coordinates belonging to the range of the display area AP (hereinafter, the i-th article is referred to as p _i , i = 1, 2, 3,..., N (where n is a variable natural number for each display area AP). Peripheral area article acquisition unit 51 has articles q _{1 to} q ₆ having latitude and longitude coordinates belonging to the range of peripheral area AQ (hereinafter, j-th article is referred to as q _{j. J} = 1, 2, 3,... M Where m is a variable natural number for each peripheral area AQ). In addition, the article p ₁ that is included in the display area _{AP, p 2, ... p j} , ..., a set of p _n is called the article P, articles q _1, q _2, which is included in the peripheral area _{AQ, ...} q _{j, ...,} The set of q _m is called article Q.

In FIG. 5, the importance index calculation unit 53a calculates the index imp _x related to the importance of the article q _j acquired by the peripheral area article acquisition unit 51 and the article p _i acquired by the display area article acquisition unit 52, and the distance index The calculation unit 53b calculates an index dist _x related to the distance from the center coordinate C in the display area AP to the point where the articles q _j and p _i are related, and the time index calculation unit 53c generates the articles q _j and p _i. The index time _x for the measured time is calculated. Note that x indicates one of articles q _j or p _i included in article P or Q.
The importance index imp _x is calculated based on the index related to the information amount of the articles q _j and p _i and the index related to the user similarity. The distance index dist _x is an index that increases as the distance from the center coordinate C in the display area AP (an example of a point in the display area) to the point where the articles q _j and p _i are related, for example, the reciprocal of the distance. It is represented by Also, the time index _x is an index that increases as the elapsed time from the time t0 when the articles q _j and p _i occur to the current time t1 decreases, and is represented by, for example, the reciprocal of the elapsed time.

The first score calculating unit 54 and the second score calculating unit 55, the importance index calculation unit 53a, a distance index calculation unit 53b, and based on the calculation result of the time index calculation unit 53c, the score Sc _qj and articles Article q _j the score Sc _pi of p _i is calculated, respectively. The score Sc _{x for the} article x is expressed by the following equation, for example.
_{Sc x = imp x × dist x} × time x ··· formula (1)
Sc _x = a × imp _x + b × dist _x + c × time _x Expression (1) ′
Here, a, b, and c are coefficients representing the weight of each index.
The index imp _x related to the importance of the article x is higher as the importance of the article x is higher, the index dist _x related to the distance is higher as the distance is smaller, and the time index _x is the time when the article x occurs The closer to the current time, the higher the value. Therefore, the value of the score Sc _x is higher as the importance of the article x is higher, and is higher as the distance is smaller, and is higher as the time when the article x occurs is closer to the current time.
That is, the first score calculation unit 54 calculates the index imp _qj related to the importance of the article q _j in the peripheral area AQ acquired by the peripheral area article acquisition unit 51, and the center coordinates C (points in the display area AP). An index dist _qj related to the distance from the point to which the article q _j relates, and a score Sc _qj based on the index time _qj related to the time when the article q _j occurred, and the importance imp _qj is the index q of the article q _j The higher the importance, the higher the value, and the smaller the distance dist _{qj, the} higher the value, and the time index time _qj calculates the score Sc _qj that is higher as the time when the article q _j occurs is closer to the current time. To do.
In addition, the second score calculation unit 55 includes the index imp _pi regarding the importance of the articles p _i in the display area AP acquired by the display area article acquisition unit 52, and the center coordinates C (points in the display area AP). An index dist _pi regarding the distance from the point to which the article p _i relates and a score Sc _pi based on the index time _pi regarding the time when the article p _i occurred, and the index imp _pi regarding the importance is the index of the article p _i The higher the importance, the higher the value, the higher the distance index, the lower the distance dist _{pi, the} higher the value, and the time index time _pi calculates the higher score Sc _pi as the time when the article p _i occurred is closer to the current time To do.

FIG. 8 is a block diagram showing a detailed functional configuration of the importance index calculation unit 53a according to the present embodiment. As illustrated in FIG. 8, the importance index calculation unit 53a includes an article analysis unit 31a, a trend information generation unit 31b, an information amount calculation unit 31c, a user similarity calculation unit 31d, and an importance score calculation unit 31e. These functions are realized by the CPU 31.
The importance index calculation unit 53a further includes a determination information storage unit ST1 that stores determination information used when the article analysis unit 31a analyzes an article received from the blog server 20, and analysis of each article. An analysis result storage unit ST2 that stores an analysis result table TBL11 and an additional information table TBL12 as results is provided. These storage units are realized by the storage device 34c. The analysis result table TBL11 and the additional information table TBL12 are updated with the analysis results every time the article analysis unit 31a performs analysis processing on a newly received article.

The determination information storage unit ST1 stores inappropriate information, malicious user information, photo URL information, blog user attribute information, user-specific word information, and user-specific interest genre information as determination information.
Inappropriate term information is a list of pre-selected inappropriate terms (so-called prohibited terms). Is exemplified.
The malicious user information is a list of so-called spam users (malicious users). For example, a contributor who sends a message having the same content to an unspecified user, a contributor who posts only advertisements, and a contributor who posts information inappropriate for browsing underage are registered in the list as malicious users.
The photo URL information is a list of predetermined photo URLs such as “pic.twitter.com/”, “twitpic.com/”, and “p.twipple.jp/”.
The blog user attribute information is the user attribute information of each user registered in the blog server 20 or the user attribute estimated from the content of the body text of the article or the profile text, and is associated with the user name of each user. It is remembered.
The word information for each user is a word that is frequently used in the body text of the article, and is stored in association with the user name of each user.
The interest genre information by user is information on a genre that each user who uses the blog service is interested in, and is stored in association with the user name of each user.

FIG. 9 shows an example of the contents stored in the analysis result table TBL11. As illustrated, in the analysis result table TBL11, basic items including a user name, a posting date and latitude / longitude information are stored in association with an article ID that is an ID of each article, and a plurality of types of information are stored. The result analyzed by the article analysis unit 31a for the quantity analysis item is stored as a numerical value.
Multiple types of analysis items (information index): (1) Number of reposts (number of retweets or RT), (2) Number of characters in the body text of the article, (3) Body text does not include mention (@) Or (4) whether the posted text contains an information URL, (5) a photo image is attached to the article, (6) the post author of the article is not a spam user, or (7) the body text contains inappropriate terms Or (8) the number of feature words of the place name included in the body text, (9) the number of HOT keywords included in the body text, (10) whether the posted text contains the URL of the topic news, or (11) the body text There are a total of twelve items, including the topic route name and (12) the body text includes the place name. Here, the number of reposts indicates the number of times the article to be analyzed has been reposted to the viewer. The feature name of the place name is, for example, a related word for each place name in the topic spot ranking (for example, “full bloom”, “seven-minute bloom”, etc. regarding “Ueno” which is a famous place for cherry blossoms). The HOT keyword is a keyword related to a hot topic among users registered in the blog service.

  Among the numerical values indicated by each item stored in the analysis result table TBL11, “RT number (number of reposts)”, “number of characters”, “number of feature names of place names”, and “number of HOT keywords” are directly equal to the number of times or the number acquired. It corresponds. On the other hand, other items are numerical values represented by “1” or “0” depending on whether they are included or not. Here, “1” indicates that the information value of the corresponding article is high, and “0” indicates that the information value is low. Specifically, for “not including a mention (@)”, “1” is assigned when it is not included, and “0” is assigned when it is included. Similarly, each item of “not spam user” and “not including inappropriate terms” is assigned “1” when not included, and “0” when included. On the other hand, the items “include information URL”, “include photo”, “include topic news URL”, “include topic route name”, and “include location name” are included. “1” is assigned to “1”, and “0” is assigned if it is not included.

  FIG. 10 shows an example of the contents stored in the additional information table TBL12. As illustrated, in the additional information table TBL12, the age, sex, occupation, place of residence, and married or unmarried are stored as the user attributes of the poster in association with each article ID. Further, in the additional information table TBL12, a genre that the poster is interested in and a word that is frequently posted are stored in association with each article ID.

  Next, in FIG. 8, the article analysis unit 31a performs an information amount analysis process for analyzing the information amount of each article received from the blog server 20, and performs an additional information acquisition process for acquiring additional information for each article. The analysis result and the acquired additional information are stored in the analysis result table TBL11 and the additional information table TBL12 in association with the article ID of each article and the corresponding item.

The information amount analysis process is roughly divided into a specific character string presence / absence determination process, a URL presence / absence determination process, a malicious user match determination process, a character number acquisition process, a repost number acquisition process, and a trend information acquisition process.
In the specific character string presence / absence determination process, the article analysis unit 31a includes a text string or a symbol indicating that the post value of each article has low information value or an inappropriate term stored in the determination information storage unit ST1. It is determined whether or not. The symbol indicating that the information value is low is, for example, the symbol “@”. “@” Is used in a posting (so-called mention) including “@user name” in a microblog such as Twitter. Here, the mention is simply mentioned by mentioning another user's name in the body text in the posted text, so it is considered to have little information value.

  In the URL presence / absence determination process, the article analysis unit 31a includes the information URL (“http: //” or “https: //”) in the posted text of the article, or the photo URL information in the determination information storage unit ST11. It is determined whether or not a character string of a predetermined photo URL stored as is included. Further, in the malicious user match determination process, the article analysis unit 31a determines whether the article poster corresponds to a spam user (malicious user) stored in the malicious user information.

  Furthermore, in the character number acquisition process, the article analysis unit 31a acquires the number of characters of the body text of the article. If the article contains an information URL or photo URL, the number of characters excluding these URLs is acquired as the number of characters in the body text. In the reposting number acquisition process, the article analysis unit 31a acquires the number of times the article has been reposted (retweeted) by the viewer.

  Further, in the trend information acquisition process, the article analysis unit 31a, based on the information generated by the trend information generation unit 31b, includes “number of feature names of place names”, “number of HOT keywords”, and “includes URL of topic news”. , And a value relating to each item of “includes topical route name”.

  Here, the trend information generation unit 31b will be described. The trend information generation unit 31b generates regional feature word information, HOT keyword information, topic news information, and topic route information. These pieces of information are generated based on a plurality of articles posted within a period (hereinafter referred to as “target period”) that is traced back by a predetermined time starting from the current time. The trend information generation unit 31b performs trend information generation processing for the target period intermittently (for example, every 15 minutes), and stores the generated trend information in the RAM 34a.

  Specifically, the trend information generation unit 31b extracts a place name from each of the body texts of a plurality of articles posted within the target period, and a tf-idf method or other known method is used for a word related to the extracted place name. To extract feature words related to place names. The extracted feature words are stored for each region in association with the place name.

  Moreover, the trend information generation unit 31b generates HOT keyword information from a plurality of articles posted within the target period. Here, the HOT keyword is a word having a larger number of appearances in the target period (for example, the latest 12 hours) than a stationary period (for example, the latest 72 hours), that is, a word having a sudden increase in the number of occurrences (the degree of rapid increase is High word). Specifically, the trend information generation unit 31b analyzes the body text of the article, and for each of the extracted plurality of words, the trending score is obtained by logarithmically converting the ratio of the appearance frequency of the target period to the appearance frequency of the stationary period. calculate. Then, a word (or a predetermined number of high-order words) having a sudden rise score S higher than a predetermined value is extracted as a HOT keyword and stored. Instead of extracting the HOT keyword, the above-described tf-idf method and other known methods can be used.

  In addition, the trend information generation unit 31b counts the number of articles including the URL including the domain name of the news site (the number of postings) among a plurality of articles posted within the target period, and sets the number of postings for each news article. To remember. In addition, the body text of multiple articles posted within the target period is analyzed to extract route names, and for each extracted route name, the number of articles containing the route name (number of postings) is counted, and the number of postings Is stored for each route name.

  In the trend information acquisition process, the article analysis unit 31a determines the number of feature words of the place name generated by the trend information generation unit 31b in the body text of the article newly received via the transmission / reception unit 33. Acquired and stored in association with the “number of feature words of the place name” in the analysis result table TBL11. If there is a HOT keyword generated by the trend information generation unit 31b, the number is acquired, and “HOT keyword in the analysis result table TBL11 is acquired. The number is stored in association with “number”.

  Further, the article analysis unit 31a determines whether or not the body text of an article newly received via the transmission / reception unit 33 includes the URL of a news article with a certain number of postings, and the determination result is used as an analysis result. The table TBL11 is stored in association with “includes topical news URL”. Further, the article analysis unit 31a determines whether or not the body text of the article newly received via the transmission / reception unit 33 includes a route name having a certain number of postings, and the determination result is displayed in the analysis result table TBL11. Are stored in association with “includes topical route names”.

Further, in the additional information acquisition process, the article analysis unit 31a refers to the blog user attribute information stored in the determination information storage unit ST1, and the user attribute information (age, gender, occupation) of the user name of the received article , Residence, and married or unmarried), and the acquired information in the additional information table TBL12 (FIG. 8) and the article ID and “age”, “sex”, “profession”, “resident” And “married or unmarried” in association with each other.
Further, the article analysis unit 31a refers to the word information for each user in the determination information storage unit ST1, and acquires and acquires a word having a high cumulative use number among words associated with the user name of the received article. The information is stored in association with the article ID of the article in the additional information table TBL12 and the “word with high posting frequency”.
Further, the article analysis unit 31a refers to the interest genre information for each user in the determination information storage unit ST1, acquires the genre associated with the user name of the received article, and stores the acquired information in the additional information table TBL12. The article ID of the article and the “interested genre” are stored in association with each other.

Next, the information amount calculation unit 31c will be described with reference to FIG.
Information amount calculation unit 31c among the plurality of articles stored in the analysis result table TBL11, articles q _j and a display area articles acquiring unit 52 at the point near region AQ peripheral region articles acquiring unit 51 has acquired is acquired For each article p _i related to the point in the display area AP, the numerical value stored in each item in the analysis result table TBL11 is read and substituted into the following equation to calculate the information amount _Sx . In the following formula, each parameter described in [] is related to the article x.
S _x = A × [number of RTs] + B × [number of characters]
+ C × [Does not include mention (@)]
+ D × [including information URL] + E × [including photograph]
+ F x [not spam user] + G x [does not contain inappropriate terms]
+ H x [number of feature names of place names] + I x "number of HOT keywords"
+ J x [includes topical news URL] + Kx "includes topical route name"
+ L × [Does the place name be included]
... Formula (A)
Here, A to L are weighting factors (positive numbers). Also, normalized values are substituted for the numerical values stored as “RT number”, and the stored values are used as they are for numerical values relating to other items.
As described above, the numerical value of each item is set to indicate that the larger the value, the higher the information value. Therefore, the larger the value of the information amount S _x of the article x, the higher the information value of the article. Note that the weighting factors A to L can be appropriately set according to the importance of the corresponding item.
Information amount calculation unit 31c is temporarily stores the value of the calculated amount of information S _x in RAM 34a.

The user similarity calculation unit 31d is configured for each of the article q _j related to the point in the peripheral area AQ acquired by the peripheral area article acquisition unit 51 and the article p _i related to the point in the display area AP acquired by the display area article acquisition unit 52. Similarity between the information stored in each item of the additional information table TBL12 stored in the analysis result storage unit ST2 and the viewer attribute information indicating the attribute of the user of the mobile terminal device 10 (that is, the viewer of the map information) Calculate the degree.
Specifically, the user similarity calculation unit 31d receives the user attribute information (“age”, “sex”, “profession”, “resident”, and “married or unmarried” of the article x received from the mobile terminal device 10. ”),“ Genre of interest ”, and“ Words with high frequency of posting ”are acquired from the additional information table TBL12, and“ Age ”,“ Gender ”,“ Occupation ”of the user of the mobile terminal device 10, Information on “residence”, “married or unmarried”, “genre of interest”, and “words frequently posted” are acquired.

Then, for each index, the user similarity calculation unit 31d gives “1” indicating that the index is similar between the poster x and the viewer. “0” indicating that they are not similar is assigned, and these numerical values are added together to calculate the similarity R _x between the poster x and the viewer of the article x and store it in the RAM 34a.

  Here, it is estimated that the more similar the attribute of the article poster and the attribute of the viewer of the article are, the more likely that the viewer is interested in the content of the article. For example, if the occupations such as “doctor” and “lawyer” match, it is estimated that there are many common topics, and it is estimated that there are many common topics even when the age, gender, and place of residence are close. Moreover, if it is married, the topic of child-rearing etc. can become a common topic. The same applies to hobbies, interested genres, and frequently used words. Therefore, in the present embodiment, based on these user attributes, the degree of similarity between the article poster and the article viewer is calculated, and the importance score is set higher as the degree of similarity is higher. .

The importance score calculation unit 31e calculates the importance score by adding the information amount S _x and the similarity R _x stored in the RAM 34a for each article x, and stores the importance score in the RAM 34a. In this embodiment, this importance score is used as an index imp _x related to the importance.

Next, returning to FIG. 5, the average score calculation unit 56 includes an average score calculation unit 56 that calculates the average score Sc _P Ave of the articles p _i in the display area AP. The average score Sc _P Ave is the average value imp _P Ave of the index imp _pi regarding the importance of the articles p _i in the display area AP, the average value dist _P Ave of the index dist _pi about the distance, and the average value time of the index time _pi about time Based on _P Ave, the following equation is used.
That is,
Average score Sc _P Ave = imp _P Ave × dist _P Ave × time _P Ave (2) or average score Sc _P Ave = a × imp _P Ave + b × dist _P Ave + c × time _P Ave・ Formula (2) '
However, imp _P Ave = Σimp (p _i ) / || P ||, dist _P Ave = Σdist (p _i ) / || P ||, and time _P Ave = Σtime (p _i ) / || P ||. Here, || P || is the total number of articles in the display area AP.
That is, the average score calculation unit 56 calculates the average value imp _P Ave of the index related to the importance of the articles p _i in the display area AP acquired by the display area article acquisition unit 52 and the center coordinates C (display area in the display area AP). Based on the average value dist _P Ave of the index related to the distance from the example of the point in the AP to the point related to the article p _i and the average value time _P Ave of the index related to the time when the article p _i in the display area AP occurred The average score Sc _P Ave of the articles p _i in the display area AP is calculated.

In addition, the candidate determining unit 57 determines that the score Sc _qj of the article q _j calculated by the first score calculating unit 54 is higher than the average score Sc _P Ave (an example of a threshold value) calculated by the average score calculating unit 56. The article q _j is determined as a candidate to be presented in the display area AP. The threshold may be the average score Sc _P Ave itself, or may be a value calculated based on the average score Sc _P Ave (for example, a value obtained by multiplying Sc _P Ave by a predetermined coefficient).

In the mobile terminal device 10, the transmission unit 58 includes the first score calculation unit 54 in which the candidate article q _j determined by the candidate determination unit 57 and the article p _i acquired by the display area article acquisition unit 52 are included in the display area AP. The map information is transmitted to the mobile terminal device 10 so as to be displayed in the display area AP displayed on the touch panel 12 of the mobile terminal device 10 in order from the article having the highest score calculated by the second score calculation unit 55. . Specifically, the transmission unit 58 acquires the map image data of the display area from the map information providing server 40, and displays the profile icon, user name, posting date and posting text of each article to be displayed in the balloon image. Generated article images. Further, map information is generated so that each article is displayed in the display area AP of the touch panel 12 in the order of score, and transmitted to the mobile terminal device 10 via the transmission / reception unit 33.

The mobile terminal device 10 displays the received map information on the display area AP of the touch panel 12. In the display area AP, n articles included in the article Q _j determined by the candidate determining section 57 and the article P acquired by the display area article acquiring section 52 among the articles Q acquired by the peripheral area article acquiring section 51. p _i is displayed. These articles q _j and articles p _i are displayed in order of score by a predetermined number.
The user of the mobile terminal device 10 who has seen the map information confirms the presented candidate article q _j in the current display area AP, and when the user taps the article image of the candidate article q _j (that is, the candidate) When the article is selected), a display request for the selected article q _j is transmitted from the mobile terminal device 10 to the blog map providing server 30. Then, the transmission unit 58 of the blog map providing server 30 displays the display area AP (hereinafter, the display area before the transition may be referred to as “display area AP1”) as a new display centered on the selected article q _j. A map image transitioned to the area AP (the display area before the transition may be referred to as “display area AP2”) is generated and transmitted to the mobile terminal device 10.

Since the screen size of the mobile terminal device 10 such as a smartphone is limited, the range of the display area AP is narrower when the map scale is the same as compared with a display device having a large screen size. In addition, when a three-dimensional map that is frequently used in recent years is adopted, it is assumed that the display is often performed with a large enlargement ratio. In this case, the range of the display area AP is further narrowed. When the display area is small, the number of articles displayed on the map may not be sufficient. In addition, there may be a case where the display area is a rural area or a suburb, or the number of articles decreases depending on a time zone such as nighttime. In such a case, the user of the mobile terminal device 10 can confirm whether there are other articles in the peripheral area AQ by scrolling the map, but if the user scrolls to the dark clouds without any clues, the burden on the user is great.
Therefore, the blog map providing server 30 of the present embodiment acquires the article q _j regarding the points in the peripheral area AQ, and based on the importance index imp _qj , the distance index dist _qj , and the time index time _qj. calculates a score Sc _qj of q _j, score Sc _qj of the calculated article q _j is higher than the average score Sc _P Ave articles p _i in the display area AP, presenting articles q _j in the display area AP The article q _j determined as a candidate is presented to the user.

<Operation>
Next, the operation of this embodiment will be described. FIG. 11 is a flowchart showing the flow of article storage / analysis processing executed by the blog map providing server 30. The article storage / analysis process is executed every time the blog map providing server 30 receives a new article from the blog server 20.

In the article analysis process, when the CPU 31 receives an article from the blog server 20 via the transmission / reception unit 33 (S11: YES), the CPU 31 assigns an article ID to the article, and “user name” and “post date / time” from the article. get. If the geotag is attached to the article (S12: YES), a new record in which the “latitude / longitude information”, “user name”, and “post date” indicated by the geotag are associated with the article ID is analyzed. It adds to TBL11 (S13). Next, the CPU 31 performs morphological analysis on the posted text of the article (S14), and determines whether the posted text includes a place name or a POI (Point of Interest). If the place name or POI is included (S15: YES), the latitude / longitude information of the place name is added to the same record of the analysis result table TBL11 (S18). Examples of POIs include entertainment facilities such as movie theaters, restaurants, museums, museums, amusement parks, and transportation facilities such as stations and airports.
On the other hand, if the geotag is not attached to the article (S12: NO), the CPU 31 performs a morphological analysis on the posted text of the article (S16), and if the posted text includes a place name (S17: YES), the place name Is added to the analysis result table TBL11 (S18).
Further, the CPU 31 assigns “1” or “0” to the article according to whether or not the posted text includes a place name, and associates the assigned value with “includes place name” in the analysis result table TBL11. Remember. The post text analysis results in steps S14 and S16 are temporarily stored in the RAM 34a.

  If no geotag is attached to the article (S12: NO) and the posted text of the article does not include a place name (S17: NO), the article is not an article about the location, so the analysis result table It is not stored in TBL11. Therefore, the article is not displayed on the map in the present embodiment.

  Next, in step S19, the CPU 31 performs information amount analysis processing. That is, the CPU 31 performs the above-described specific character string presence / absence determination processing, URL presence / absence determination processing, malicious user appropriateness determination processing, character number acquisition processing, repost number acquisition processing, and fashion degree information acquisition processing, and the analysis result is The analysis result table TBL11 is stored in association with the article ID of the article and the corresponding item.

  Each time the CPU 31 receives an article, the CPU 31 performs an information amount analysis process for a plurality of items for the article, and stores the analysis result in the analysis result table TBL11. As a result, for example, as shown in FIG. 9, for “article ID = 0001”, “user name = A, posting date = 20131004 03:05:11 (October 4, 2013 3: 5: 11), Latitude / Longitude = (x1, y1), RT number = 123, Number of characters = 35, Mention (@) not included = 0, Information URL included = 1, Photo included = 1, Not spam user = 0, Inappropriate term Is included, the number of feature words of the place name = 2, the number of HOT keywords = 1, the URL of the topic news URL = 0, the topic route name = 0, and the place name = 0 is generated. The

Subsequently, in step S20, the CPU 31 performs the additional information acquisition process described above. Each time the CPU 31 receives an article, the CPU 31 performs additional information acquisition processing on the article, and stores the acquired additional information in the additional information table TBL12. As a result, for example, as shown in FIG. 10, for “article ID = 0001”, “age = 27, gender = male, occupation = company employee, residence = Tokyo, married or unmarried, separate = married, interested. A record including “genre = music, frequently posted word = live, ticket” is generated.
The article analysis process (S19) need not be performed before the additional information acquisition process (S20), and the article analysis process may be performed after the additional information acquisition process.

Next, with reference to FIG. 12, the map information provision process which concerns on this embodiment is demonstrated. The map information providing process is started when a display request for map information is received from the mobile terminal device 10.
Here, the display request for map information is generated in the mobile terminal device 10 as follows. When the CPU 11 of the mobile terminal device 10 detects a touch operation on the activation icon of the blog map application displayed on the touch panel 12, the blog map application is activated. When the blog map application is activated, the blog map application asks the user for permission to access the current location information of the mobile terminal device 10, and if permission is obtained or if permission has been granted in advance, the mobile terminal device The CPU 11 is caused to execute a process of generating a map information display request for the display area AP including the ten current position information. Specifically, the CPU 11 is a map centered on the current position information, and includes the designation of the display area AP having a predetermined enlargement ratio in the map information display request, and then sends it to the blog map providing server 30. Send. The display request may not include the current position information of the mobile terminal device 10 but may include specification information of an arbitrary place specified by the user of the mobile terminal device 10. That is, an arbitrary place may be designated as the display area AP.
Further, the map information display request is made when the CPU 11 performs a touch operation (slide operation) for moving the display area AP or a touch operation (pinch-out operation or pinch-in operation) for changing the enlargement ratio while the map information is displayed. ) Is also generated.
In this operation example, it is assumed that the user of the mobile terminal device 10 is a registered user of the blog service provided by the blog server 20.

In FIG. 12, when receiving a map information display request from the mobile terminal device 10, the CPU 31 acquires map image data of the display area AP from the map information providing server 40 and also stores a plurality of articles stored in the analysis result table TBL 11. among articles with latitude and longitude information belonging to the display area AP included in the display request received, i.e., the display area articles p ₁ at the point in the _{AP, p 2, ..., p} i ..., acquires p _n (S31). CPU31 is article p ₁ at the point in the display area _{AP, p 2, ..., p} i ..., p n to generate the map information displayed on the map display area AP, the touch panel 12 of the portable terminal device 10 Is transmitted to the mobile terminal device 10 so as to be displayed. The map information of the display area AP corresponding to the transmitted display request is displayed on the touch panel 12 of the mobile terminal device 10 that has received the map information. At this time, if the number n of articles p _i related to the point in the display area AP exceeds a predetermined number, the CPU 31 performs the processes after step S32 on the assumption that the number of articles displayed in the display area AP is sufficient. It may not be performed.

Next, in step S32, the CPU 31 acquires articles having latitude / longitude information belonging to the peripheral area AQ, that is, articles q ₁ , q ₂ ,..., Q _j , q _m relating to points in the peripheral area AQ. . In the present embodiment, as shown in FIG. 7, it is assumed that articles p ₁ and p ₂ regarding points are acquired for the display area AP, and articles q _{1 to} q ₆ regarding points are acquired for the peripheral area AQ. (Ie n = 2, m = 6).

Then, CPU 31, in step S33, the score Sc _q1 article q ₁ to q ₆ at the point of the display area point and articles p ₁ of Sc _p1 and p ₂ of the score Sc _p2, related to the peripheral region AQ in AP ~ Sc _q6 is calculated.
First, the CPU 31 calculates an index imp _x related to the importance for each article p _1, p ₂ and q _{1 to} q ₆ . Specifically, in the analysis result table TBL11, “RT number”, “character number”, and “mention (@)” are obtained from each record of the article ID corresponding to each article p ₁ , p ₂ , q _{1 to} q _6. "Does not contain", "Includes information URL", "Includes photo", "Not spam user", "Does not contain inappropriate terms", "Number of feature names of place names", "Number of HOT keywords", "Topic news" The numerical value stored in each item of “including URL”, “including topical route name”, and “including place name” is acquired, and the acquired numerical value is substituted into the above-described formula A, and each article p ₁ , Information amounts S _p1 , S _p2 , S _{q1 to} S _q6 of p ₂ , q _{1 to} q ₆ are calculated, and the calculated information amounts are temporarily stored in the RAM 34a.

In addition, the CPU 31 extracts “age”, “sex”, “occupation”, “location” from each record of the article ID corresponding to each article p ₁ , p ₂ , q _{1 to} q ₆ in the additional information table TBL12. ”,“ Separate Married or Unmarried ”,“ Genre of Interest ”, and“ Words with Highly Posted Frequency ”are acquired. In addition, the CPU 31 refers to the determination information storage unit ST1, and the “age”, “sex”, “occupation”, “residence”, and “married or unmarried” of the user of the mobile terminal device 10 that transmitted the display request. No. "," Interested genre "," Words with high frequency of posting ", and" Including place name "items are stored. Then, similarities R _p1 , R _p2 , R _{q1 to} R _q6 between the posters of the articles p ₁ , p ₂ , q _{1 to} q ₆ and the user of the mobile terminal device 10 are calculated and temporarily stored in the RAM 34a. To do.

Next, the CPU 31 stores the values of the information amounts S _p1 , S _p2 , S _{q1 to} S _q6 of each article p ₁ , p ₂ , q _{1 to} q ₆ and the similarities R _p1 , R _p2 , The importance index imp _x is calculated from the values of R _{q1 to} R _q6 . Specifically, first, the CPU 31 reads the information amounts S _p1 , S _p2 , S _{q1 to} S _q6 of the articles p ₁ , p ₂ , q _{1 to} q ₆ from the _RAM 34a, the maximum value is 1, and the minimum value is Normalize to 0, and read the similarities R _p1 , R _p2 , R _{q1 to} R _q6 of the articles p ₁ , p ₂ , q _{1 to} q ₆ from the _RAM 34a, the maximum value is 1, and the minimum value is Normalize to be zero. For each of the articles p ₁ , p ₂ , q _{1 to} q ₆ , the normalized information amounts S _p1 , S _p2 , S _{q1 to} S _q6 and the normalized similarity R _p1 , R _p2 , The total value obtained by _adding the values of R _{q1 to} R _q6 is temporarily stored in the RAM _34a as an importance score (importance-related indexes imp _p1 , imp _p2 , imp _{q1 to} imp _q6 ).

Then, CPU 31, for each article _{p 1, p 2, q 1} ~q 6, indicators of distance dist _p1, calculates the dist _p2, dist _q1 ~dist _q6. Specifically, for each article p ₁ , p ₂ , q _{1 to} q ₆ , the CPU 31 calculates the reciprocal of the distance from the latitude / longitude coordinates C at the center in the display area AP to the latitude / longitude coordinates of the point related to each article. And is temporarily stored in the RAM _34a as indices dist _p1 , dist _p2 , dist _{q1 to} dist q6 related to the distance. Here, the coordinates may be a pixel coordinate system or a latitude / longitude coordinate system of the screen of the mobile terminal device 10. Further, CPU 31 obtains the reciprocal of the elapsed time to the current time t1 from time t0 to each article _{p 1, p 2, q 1} ~q 6 occurs, the index time _p1, time _p2 time-related, time _q1 ~time _q6 Is temporarily stored in the RAM 34a.
The indicator CPU31 in accordance with equation (1), the index imp _p1 relates importance stored in _{RAM34a, imp p2, imp q1 ~imp} q6, indicators of distance _{dist p1, dist p2, dist q1} ~dist q6, and a time time _p1, time _p2, time _q1 based on ～Time _q6, according to equation (1) or formula (1) ', the score Sc _q1 to SC _q6 and articles p ₁ and p ₂ of the score Sc of articles q ₁ to q _{6 p1,} Sc _p2 the calculated respectively.

Next, the CPU 31 calculates the average score Sc _P Ave of the articles p _i in the display area AP, and determines articles that exceed the average score Sc _P Ave among the articles Q in the peripheral area AQ as candidate articles. (S34-S38). Specifically, the CPU 31 follows the formula (2), and the average value imp _P Ave of the indexes imp _p1 and imp _p2 regarding the importance of the articles p ₁ and p ₂ in the display area AP, and the indexes dist _p1 and dist _p2 regarding the distance average dist _P Ave of the time based on the average value time _P Ave index time _p1 and time _p2 relates, according to equation (2) or formula (2) ', an average score Sc _P Ave (S34). Next, for each of the articles q ₁ to q ₆ in the peripheral region AQ, the score Sc _q1 to SC _q6, it is determined whether or not exceed the average score Sc _P Ave, candidate articles above the average score Sc _P Ave Articles are determined (S36 to S38). In this embodiment, among the articles q _{1 to} q ₆ in the peripheral area AQ, the scores Sc _q5 , Sc _q4 , Sc _q3 , Sc _q1 of the articles q ₅ , q ₄ , q ₃ , q ₁ are the average scores Sc _P It is assumed that the value exceeds Ave and is higher in the order of description (Sc _q5 > Sc _q4 > Sc _q3 > Sc _q1 > Sc _P Ave). The scores of articles p ₁ and p ₂ in the display area AP are Sc _p2 > Sc _p1 , Sc _q5 > Sc _p2 > Sc _q4 , and Sc _q1 > Sc _p1 .

Subsequently, in step S39, the CPU 31 causes the mobile terminal device 10 to select articles that exceed the average score Sc _P Ave among the articles q _{1 to} q ₆ in the peripheral area AQ (that is, articles q ₅ , q ₄ , q ₃ ,. q ₁ ) and the map information on which the articles p ₁ and p _{2 in} the display area AP are displayed are transmitted to the mobile terminal device 10 so that they can be displayed in the display area AP of the touch panel 12.
Specifically, the CPU 31 first ranks the articles displayed in the display area AP (articles exceeding the average score Sc _P Ave among the articles p _i in the display area AP and the articles Q in the peripheral area AQ) in order of score. The attached ranking table is generated and temporarily stored in the RAM 34a. FIG. 13A shows an example of a ranking table TBL14 in which articles displayed in the display area AP are arranged in order of score. As shown in the drawing, in the table, articles q ₅ , q ₄ , q exceeding the average score Sc _P Ave among articles p ₁ and p ₂ in the display area AP and articles q _{1 to} q ₆ in the peripheral area AQ. ₃ and q ₁ are arranged in the order of score (Sc _q5 > Sc _p2 > Sc _q4 > Sc _q3 > Sc _q1 > Sc _p1 ). CPU31 produces | generates map information so that each article can be displayed on display area AP in the order defined in order | rank table TBL14, and transmits with respect to the portable terminal device 10. FIG.

FIG. 13B shows the transition of the display area displayed on the touch panel 12 of the mobile terminal device 10 according to the present embodiment. First, as shown in screen (a), the touch panel 12 of the portable terminal device 10, the current display area AP (display region AP1), the score is displayed the highest article q ₅ article image. Articles q ₅ of the article image, the origin of the balloon that is, articles q ₅ in the peripheral region AQ is displayed in the display area AP1 to point approximate the position of the point related. Although illustration is omitted, a map image of the display area AP1 is displayed on the back of the article image.

The screens (a) to (d) of the display area AP1 transition at predetermined time intervals (for example, every 5 seconds). In the screen (b), scores While higher articles p ₂ of the article images in the second are displayed, articles image article q ₅ which has been previously displayed gradually disappears (fade out). In the screen (c), while the score is displayed higher articles q ₄ of article image Third, article image article p ₂ which has been previously displayed is gradually faded out. In the next screen (d), the score is displayed a high article q ₃ articles image Fourth, the user of the portable terminal device 10, and selects by tapping the article image article q _3. CPU11 of the portable terminal apparatus 10 which has detected the touch operation to the article q ₃ of the article image, a transition request to the new display area including a point on this story q _3, a blog map providing server 30 via the communication interface 13 Send.

Next, in FIG. 12, when the CPU 31 receives a request for transition to a new display area including a point relating to the article q ₃ from the mobile terminal device 10 (S40), the CPU 31 newly arranges the point relating to the article q ₃ at the central coordinate C. The map information of the display area AP2 is generated and transmitted to the mobile terminal device 10 so that it can be displayed on the touch panel 12 of the mobile terminal device 10 (S41). As a result, as shown in screen (e) in FIG. 13B, the mobile terminal in the touch panel 12 of the apparatus 10, article location and center coordinates C to about q _3, the display area article image is displayed article q ₃ AP2 Is displayed.
FIG. 13C is a view for explaining the display area AP1 before the transition and the display area AP2 after the transition according to the present embodiment. As shown in the figure, when the user of the mobile terminal device 10 viewing the map information confirms a candidate article in the presented peripheral area AQ in the current display area AP1, and touches the presented article image. (That is, when a candidate article is selected), the display area AP1 transitions to a new display area AP2 centering on the candidate article in the peripheral area AQ. Therefore, according to the present embodiment, the user does not need to scroll the map in order to find an article related to a point outside the display area AP, and the user's trouble is reduced.

As described above, the blog map providing server 30 according to the present embodiment acquires the article p _i related to the point in the display area AP and the article q _j related to the point in the peripheral area AQ, and the index imp _qj about the importance, the distance The score Sc _pi (second score) of each article p _i and the score Sc _qj (first score) of the article q _j are calculated based on the index dist _qj related to the time and the index time _qj related to the time, and the display area AP The average score Sc _P Ave of the articles P regarding the points in the area is calculated, and among the articles Q in the peripheral area AQ, the articles q _j of the score Sc _qj (first score) exceeding the average score Sc _P Ave and the display area AP The article p _i is displayed in the current display area AP1 of the touch panel 12 of the mobile terminal device 10. Therefore, among the articles Q regarding the points in the peripheral area AQ around the display area AP displayed on the mobile terminal device 10, the importance is high, the current display area is close, and the new articles q _j are displayed in order. Thus, the article q _j predicted to be useful to the user can be presented to the user in the display area AP displayed on the touch panel 12.

In this embodiment, the blog map providing server 30 uses the article p _i related to the point in the display area AP as a threshold used for determining whether or not the article q _j related to the point in the peripheral area AQ is displayed as a candidate. The average score Sc _P Ave is used. Therefore, according to the present embodiment, among the articles Q in the peripheral area AQ, the articles having a score Sc _qj higher than the average score Sc _P Ave of the articles p _i in the display area AP are candidates for presentation. Therefore, it is possible not to present information that is predicted to be less useful than an article in the display area AP that the user is currently browsing. That is, in order to determine whether or not a candidate is appropriate based on the average value Sc _P Ave, an article related to a point in the peripheral area AQ is based on an article in the area that the user of the mobile terminal device 10 is currently browsing with interest. q There is an advantage that it is possible to determine whether _j is a candidate for presentation.
Further, the blog map providing server 30 presents an article q _j having a score Sc _qj exceeding the average score Sc _P Ave among the articles Q in the peripheral area AQ in the current display area AP1 of the touch panel 12 of the mobile terminal device 10. At this time, candidate articles q _j of articles Q in the peripheral area AQ and articles p _i in the display area AP are presented in descending order of scores. Since the article p _i in the display area AP is an article that is estimated to be of interest to the user of the mobile terminal device 10, the article that is estimated to be more useful to the user is highly useful. Presented to the user in an estimated order.
Also, a predetermined number of articles q _{j that} are candidates in the peripheral area AQ and articles p _i in the display area AP are displayed in the display area AP displayed on the touch panel 12 of the mobile terminal device 10 (in this embodiment, 1 One by one). In particular, when the screen size is limited as in the mobile terminal device 10, the visibility of the map information displayed on the back surface is ensured by limiting the number of articles displayed in the display area AP to a predetermined number. Is possible.

Further, as described above, the index imp _x (importance score) related to the importance is calculated based on the information amount S _x of the article _x and the similarity R _{x of the} user. That is, in the present embodiment, the information amount calculation unit 31c calculates the information amount _Sx so that the importance of the article becomes high when the posted text of the article includes added value information (information URL or photo URL). In the case where a character string or symbol indicating that the information value is small or an inappropriate term is included, the amount of information S _x is calculated so that the importance of the article is low. The amount of information _Sx is calculated so that the importance of the article increases (the more the document amount of the article is), and the importance of the article increases as the number of re-posts to the article viewer increases. The amount S _x is calculated, and when the poster contributor is a malicious user, the information amount S _x is calculated so that the importance of the article is low, and the feature word extracted from the latest posted information is calculated. It is often used in the degree of fitness or the latest post information The amount of information _Sx is calculated so that the importance of the article increases as the degree of adaptation to the attention word increases. Articles with a high amount of information or articles with a higher degree of fitness for recent feature words or attention words are presumed to have a higher information value, so it is possible to present to the user articles that are likely to be of interest to the user It becomes possible.

The similarity _Rx is determined so that the value increases as the similarity between the article poster and the user (viewer) of the mobile terminal device 10 increases. That is, in this embodiment, the user similarity calculation unit 31d increases the similarity between the poster attribute information indicating the attribute of the poster poster and the viewer attribute information indicating the attribute of the user of the mobile terminal device 10. The importance of the article increases. The more similar the attributes of the article's contributor and the viewer of the article are, the more likely it is that the viewer is interested in the content of the article. It is possible to present to the user an article that is more suited to the specific environment, interests and preferences.

<Second Embodiment>
Next, a second embodiment of the present invention will be described.
This embodiment is different from the first embodiment described above in that the mobile terminal device performs the map information providing process instead of the blog map providing server. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

FIG. 14 is a block diagram illustrating a functional configuration of the mobile terminal device 10B according to the present embodiment. As shown in the figure, the CPU 11B of the mobile terminal device 10B includes a peripheral region article acquisition unit 551, a display region article acquisition unit 552, an importance index calculation unit 553a, a distance index calculation unit 553b, a time index calculation unit 553c, 1 score calculation part 554, 2nd score calculation part 555, average score calculation part 556, candidate determination part 557, and display control part 558 are provided. Each of these units includes a peripheral region article acquisition unit 51, a display region article acquisition unit 52, an importance index calculation unit 53a, a distance index calculation unit 53b, a time index calculation unit 53c, and a first score calculation unit 54 of the blog map providing server 30. , The second score calculation unit 55, the average score calculation unit 56, the candidate determination unit 57, and the transmission unit 58. However, the importance index calculation unit 553a does not include the article analysis unit 31a and the trend information generation unit 31b included in the importance index calculation unit 53a, and the display control unit 558 generates the generated map like the transmission unit 58. Instead of transmitting information to the mobile terminal device 10, the touch panel 12 is controlled so as to be displayed on the touch panel 12 of the own device. The touch panel 12 displays map information on which articles related to points on the map are displayed.
The storage unit 14 of the mobile terminal device 10B stores a map information providing program for executing a map information providing process, and the CPU 11B executes each program to realize each function according to the present embodiment. .

  FIG. 15 is a block diagram showing a functional configuration of the blog map providing server 30B according to the present embodiment. As illustrated, the blog map providing server 30B includes an article analysis unit 531a, a trend information generation unit 531b, a determination information storage unit ST51, and an analysis result storage unit ST52. The article analysis unit 531a and the trend information generation unit 531b are the same as the article analysis unit 31a and the trend information generation unit 31b of the first embodiment, and these functions are realized by the CPU 31B.

The determination information storage unit ST51 and the analysis result storage unit ST52 are held in the storage device 34cB, and are the same as the determination information storage unit ST1 and the analysis result storage unit ST2 of the first embodiment.
In response to a request for map information from the mobile terminal device 10B, the blog map providing server 30B sends the storage contents of the analysis result table TBL11 and the additional information table TBL12 stored in the analysis result storage unit ST2 to the mobile terminal device 10B. Send.

FIG. 16 is a sequence chart showing the flow of processing according to the present embodiment. As shown in the figure, every time the blog server 20 receives an article posted from a user, the blog map providing server 30B creates an article including a user name, a profile icon such as a photo image set by the user, posted text, and a posting date and time. (Sb1).
When the CPU 31B of the blog map providing server 30B receives a new article from the blog server 20 via the transmission / reception unit 33, the CPU 31B adds an article having a geotag attached to it or an article including a place name in the posted text to the analysis result table TBL11. By referring to the trend information generation unit 531b and the determination information storage unit ST51, the analysis process (Sb2) of each article is executed, and the CPU 31B converts the analysis result into the analysis result table TBL11 and the additional information in the analysis result storage unit ST52. Store in the table TBL12 (Sb3). The article transmitted from the blog server 20 to the blog map providing server 30 is stored in the blog map providing server 30 so that it can be transmitted to the portable terminal device 10B in response to a request from the portable terminal device 10B. Has been.

Next, when the CPU 31B receives a map information display request for the display area AP1 from the mobile terminal device 10B (Sa1), the display area included in the received display request is sent to the map information providing server 40 accordingly. The map image data of AP1 is requested (Sb4). Then, when the CPU 31B receives the map image data from the map information providing server 40 (Sb5), the article having latitude and longitude information belonging to the display area AP1, that is, the articles p ₁ , p ₂ , relating to the points in the display area AP1 .., P _i ..., _Pn are acquired, and the map information in which these articles are displayed on the map of the display area AP1 is transmitted to the mobile terminal device 10B (Sb6).
The CPU 11B of the mobile terminal device 10B that has received the map information controls the touch panel 12 to display the received map information on the touch panel 12 (Sa2).

Subsequently, when the CPU 11B of the mobile terminal device 10B requests an article in the peripheral area AQ of the display area AP1 from the blog map providing server 30B (Sa3), the CPU 31B of the blog map providing server 30B responds accordingly. Articles having latitude / longitude information belonging to the peripheral area AQ, that is, articles q ₁ , q ₂ ,..., Q _j , q _m regarding points in the peripheral area AQ are acquired and transmitted to the mobile terminal device 10B ( Sb7). Then, CPU 31b, of the analysis result table TBL11 and the additional information table TBL12 the stored analysis result, articles p ₁ at the point in the display area _{AP1, p 2, ..., p} i ..., p n, and the peripheral area The analysis results of articles q ₁ , q ₂ ,..., Q _j ..., Q _m regarding the points in the AQ are acquired and transmitted to the mobile terminal device 10B. The article transmitted from the blog map providing server 30B to the mobile terminal device 10B includes information necessary for generating an article image, such as a user name, a profile icon such as a photographic image set by the user, posting text, and posting date and time. It is. In the present embodiment, as in the above-described embodiment, as shown in FIG. 7, articles p ₁ and p ₂ relating to points are acquired for the display area AP (that is, the display area AP1), and the peripheral area AQ is acquired. Suppose that articles q _{1 to} q ₆ regarding points are acquired (ie, n = 2, m = 6).

When the CPU 11B of the mobile terminal device 10B receives the analysis result from the blog map providing server 30B, the CPU 11B temporarily stores the received information in the RAM of the storage unit 14, and articles p ₁ and p ₂ related to the points in the display area AP1 and the peripheral area for each article q ₁ to q ₆ related to the point in the AQ, executes information amount calculation process (Sa4) and the user similarity degree calculation processing (Sa5).
Here, in this embodiment, when the blog map application is first activated, user attribute information (“age”, “gender”, “occupation”, “resident” regarding the user (ie, viewer) of the mobile terminal device 10B. This information is acquired in advance and stored in the storage unit 14 by prompting the user to input “land” and “separately married or unmarried”) and “interested genre”. In addition, regarding “words that are frequently posted”, when the user of the mobile terminal device 10B is a registered user of the blog service, each time the blog map application is activated, the user uses his / her user name and password. As a result of prompting the user to log in to the blog service, “words that are frequently posted” are automatically acquired from the articles of the viewers in the past certain period and stored in the storage unit 14.
CPU11B is the information about each article x based on the information received from the blog map providing server 30B and the user attribute information stored in the storage unit 14, the "interesting genre", and the "word with high posting frequency". The amount S _x and the similarity R _x are calculated and temporarily stored in the RAM of the storage unit 14.

Next, in step Sa6, the CPU 11B calculates the index imp _x related to the importance of each article x based on the information amount S _x and the similarity R _x stored in the RAM, and calculates the index dist _x related to the distance. Then, the time index _x is calculated. Subsequently CPU11B is index imp _x about the importance calculated in step Sa6, distance based on the index dist _x, time related index time _x about, respectively calculated score Sc _qj score Sc _pi and articles q _j article p _i To do. Thereafter, the CPU 11B calculates the average score Sc _P Ave of the articles p ₁ and p ₂ in the display area AP1 (Sa8), and the article q ₁ regarding the points in the peripheral area AQ, as in the first embodiment described above. of to q _6, displays the score is determined as a candidate the article above the average score Sc _P Ave, together with articles p ₁ and p ₂ in the display area AP1, in the display area AP1 displayed on the touch panel 12 (Sa9).

As a result, the screen as shown in FIG. 13B is displayed on the portable terminal device 10B, the user of the portable terminal device 10B is, when the screen (d) is displayed on the touch panel 12, touch the article q ₃ Suppose you select it. CPU11B of accepting the selection input portable terminal device 10B, the new display area including a point on this story q ₃ (i.e., the display area AP2) sends a transition request to a blog map providing server 30 (Sa10). CPU31B receives the transition request from the portable terminal device 10B, to generate a new map information display area AP2 the article q ₃ is arranged at the center coordinates C of the relevant point, the display in the touch panel 12 of the portable terminal device 10B It transmits to portable terminal device 10B so that it may become possible (Sb9-Sb11). As a result, as shown in screen (e) in FIG. 13B, the touch panel 12 of the portable terminal device 10B, the display area AP2 placing the point on this story q ₃ in the center coordinates C is displayed.

As described above, in this embodiment, the mobile terminal device (user terminal) 10B includes the touch panel 12 that displays map information on which articles related to points on the map are displayed, and the display area AP that is displayed on the touch panel 12. A peripheral region article acquisition unit 551 that acquires an article q _j related to a point in the peripheral region AQ excluding the display region AP, and an article q in the peripheral region AQ acquired by the peripheral region article acquisition unit 551 _{This is} a score based on the index imp _qj related to the importance of _j, the index dist _qj related to the distance from the center coordinate C in the display area AP to the point related to the article q _j, and the index time _qj related to the time when the article q _j occurred. Te importance relates index imp _qj is higher the higher the importance value of the article q _j, distance indicators for dist _qj is as the distance is smaller the value is high, the index time _qj about time the article q _j is The first score calculation unit 554 that calculates a higher score as the time when the occurrence occurs is closer to the current time, and the score of the article q _j calculated by the first score calculation unit 554 is the average of the articles p _i in the display area AP. When the score Sc _P Ave (an example of a threshold value) is higher, a candidate determination unit 557 that determines the article q _j as a candidate to be presented in the display area AP, and the candidate article q _j determined by the candidate determination unit 557 are displayed. A display control unit 558 that controls the touch panel 12 to be displayed in the area AP is provided. Furthermore, the display area article acquisition unit 552 acquires articles p _i related to points in the display area AP, and the second score calculation unit 555 is an index imp related to the importance of the articles p _i related to points in the display area AP. _pi and the index dist _pi on the distance from the center coordinates C of the display area AP to the point concerning articles p _i, to calculate the score based on the index time _pi regarding time articles p _i is generated, the display control unit 558 The touch panel 12 is controlled such that a predetermined number of articles p _i acquired by the display area article acquiring unit 552 and candidate articles q _j determined by the candidate determining unit 557 are displayed in the display area AP in order from the highest score. To do.
Therefore, according to this embodiment, the same effect as the first embodiment described above can be obtained. Further, according to the present embodiment, since the mobile terminal device 10B performs the map information providing process instead of the blog map providing server, there is an advantage that the load on the blog map providing server is distributed.

<Modification>
The present invention is not limited to the above-described embodiments, and the following modifications are possible. Moreover, each modification can be combined suitably.
(1) In the above-described embodiment, each of the first score, the second score, and the average score is calculated based on the importance index imp _x , the distance index dist _x, and the time index time _x . The first score is calculated based on at least one of the importance index imp _x , the distance index dist _x, and the time index time _x , and the first score is calculated based on the same index as the index used in the first score. Two scores and an average score may be calculated.
In the embodiment described above, the index imp _x related to the importance is calculated based on the information amount S _x and the similarity R _x , but only one of them may be used.

(2) In the embodiment described above, the index dist _qj related to the distance of the article q _j in the peripheral area AQ is the distance from the center coordinate C in the display area AP to the point related to the article q _j , but the center coordinate C The point is not limited to the point and may be a point in the display area AP. Further, the point in the display area AP may be an arbitrary point, or may be the point closest to the article q _j among the points on the periphery of the display area AP.
Similarly, in the above-described embodiment, the index dist _pi regarding the distance of the article p _i in the display area AP is the distance from the center coordinate C in the display area AP to the point related to the article p _i , but the center coordinate C The point is not limited to the point and may be a point in the display area AP.
In the above-described embodiment, the distance index dist _x is such that the smaller the distance from the central coordinate C in the display area AP to the point related to the article p _i or q _{j, the} smaller the distance dist _x is. Although it is calculated from the reciprocal of the distance, it may instead be calculated from the reciprocal of the square value of the distance. That is, the distance index dist _x may be calculated from the reciprocal of the square value of the distance from a point in the display area AP to a point related to the article p _i or q _j . According to this modification, the score of the article x close to the display area AP is evaluated higher than when the reciprocal of the distance is used.

(3) In the embodiment described above, the candidate determination units 57 and 557 have the score Sc _qj of the article q _j in the peripheral area AQ calculated by the first score calculation units 54 and 554 as the article p _i in the display area AP. If it is higher than the average score Sc _P Ave, it is determined as a candidate article, but is not limited to this. For example, a threshold value that is estimated that the article q _j is useful for the user of the mobile terminal device 10 or 10B may be provided, and the article q _j exceeding the threshold value may be determined as a candidate article. That is, when the score Sc _qj of the article q _j in the peripheral area AQ calculated by the first score calculation sections 54 and 554 is higher than the threshold, the candidate determining sections 57 and 557 display the article q _j in the display area AP. It may be determined as a candidate to be presented.

FIG. 17 is a block diagram showing a functional configuration of a blog map providing server 30A (map information providing apparatus) according to this modification. As illustrated, the blog map providing server 30A includes a peripheral area article acquisition unit 51, an importance index calculation unit 53a, a distance index calculation unit 53b, a time index calculation unit 53c, a first score calculation unit 54, and a candidate determination unit. 57A and a transmitter 58A. That is, the blog map providing server 30A according to the present modification includes the blog map providing according to the first embodiment in that the display area article acquiring unit 52, the second score calculating unit 55, or the average score calculating unit 56 is not provided. Different from the server 30.
In addition, the candidate determination unit 57 according to the first embodiment described above has the score Sc _qj of the article q _j in the peripheral area AQ calculated by the first score calculation unit 54 as the average score Sc _P of the articles p _i in the display area AP. Whereas if it is higher than Ave, it is determined as a candidate article, while the candidate determination unit 57A according to this modification example is a candidate article when the score Sc _qj of the article q _j in the peripheral area AQ is higher than the threshold. Determine as.
In addition, in the mobile terminal device 10, the transmission unit 58 according to the first embodiment includes the candidate article q _j determined by the candidate determination unit 57 and the article p _i acquired by the display area article acquisition unit 52 in the display area AP. In order to display in the display area AP displayed on the touch panel 12 of the mobile terminal device 10 in order from the article with the highest score calculated by the first score calculation unit 54 and the second score calculation unit 55. while transmitting the map information to the terminal device 10, transmission unit 58A of the present modification, articles q _j candidate candidate determination section 57A has decided that, in the display area AP, the first score calculating unit 54 Map information is transmitted to the mobile terminal device 10 so as to be displayed in the display area AP displayed on the touch panel 12 of the mobile terminal device 10 in order from the article having the highest calculated score. That is, in the present modification, unlike the first embodiment, the articles p _i relating to the points in the display area AP are not displayed in the display area AP displayed on the touch panel 12 of the mobile terminal device 10.

Here, the threshold value may be zero or a predetermined value. Also encompasses a display area AP, it may be the average value of scores of articles large area AP _L than the display area AP. Area AP _L, for example, may include one or more unit areas do not overlap each other. It is also possible to calculate an average score of articles regarding points in each unit area in the past period, and use this average value or a value based on the average value as a threshold value.
According to the present embodiment, among the articles Q related to the points in the peripheral area AQ, the articles q _j estimated to be useful for the user of the mobile terminal device 10 are displayed in the display area AP displayed on the touch panel 12. It can be presented to the user. That is, since the user can see the candidates for the article q _j in the peripheral area AQ while looking at the display area AP, there are no articles displayed in the display area AP or a very small number of articles are displayed. Even in this case, there is no need to scroll to another area in the dark clouds, and the convenience is greatly improved.
In the case of the first embodiment described above, if there is no article p _i in the display area AP, the average score Sc _P Ave cannot be obtained. Even if there are no articles or a very small number of articles, it is possible to determine article candidates in the peripheral area AQ according to a certain standard that does not depend on the articles p _i in the display area AP.

(4) In the above-described embodiment, the transmission unit 58 or the display control unit 558 includes the article q _j whose score Sc _qj exceeds the average score Sc _P Ave among the articles Q in the peripheral area AQ. The articles p _i are displayed in the display area AP in order from the highest first score and second score, but the present invention is not limited to this.
For example, in the mobile terminal device 10 or 10B, the transmission unit 58 or the display control unit 558 first starts the article in the article p _i in the display area AP from the article with the high score calculated by the second score calculation unit 55 and 555. A predetermined number of items are displayed in order, and then, the article Q _j whose score Sc _qj exceeds the average score Sc _P Ave among the articles Q in the peripheral area AQ is the article with the high score calculated by the first score calculation units 54 and 554 Alternatively, a predetermined number may be displayed in order. According to this aspect, the articles p _i in the display area AP are displayed with priority.

(5) In the above-described embodiment, the predetermined number of articles displayed in the display area AP has been described as 1. However, the present invention is not limited to this, and the visibility of the map displayed in the display area AP is high. It can be changed as appropriate within a range that can be secured. Although FIG. 13B described above illustrates an example in which articles are displayed so as not to overlap each other, the present invention is not limited thereto. For example, if the predetermined number is 2, the two articles may be displayed in an overlapping manner, the article with the higher score is displayed in the foreground, the article that was displayed first disappears at a predetermined interval, and the next article May be switched one by one so that articles with high scores are displayed on the front. That is, in the example shown in FIG. 13A, the highest score of the article q ₅ articles image and score higher articles p ₂ to the second article images are displayed simultaneously. In this case, article image article q ₅ is displayed on the front surface of the article image article p _2. Then, at the next switching timing, the article image of article q ₅ disappears, the article image of article p ₂ is displayed on the front, and the article image of article q _{4 with} the third highest score is displayed on the back. .
Further, the present invention is not limited to a mode in which a predetermined number of articles are displayed. For example, when the occupancy ratio of the article area in the display area AP exceeds a predetermined value (for example, 20%), the articles that have been displayed first disappear sequentially, and the article to be displayed next when the occupancy ratio falls below the threshold May be displayed.
According to these aspects, even in the display unit of the mobile terminal device 10 such as a smartphone that has a restriction on the screen size, while ensuring the visibility of the map in the display region displayed on the display unit, And the articles in the peripheral area can be presented in the display area displayed on the display unit.

In (6) described above embodiments, the screen (e) in FIG. 13B, although the display area AP2 the user has placed the center coordinates C of a point on this story q ₃ selected in the portable terminal apparatus 10,10B is displayed, it is not necessary to place on this story q ₃ coincides with the center coordinates C of the display area AP2, may be displayed as points about the article q ₃ is contained in the display area AP2.
That is, when the candidate article q _j is selected for viewing by the user in the mobile terminal device 10, the transmission unit 58 creates a new display area AP2 including a point related to the selected candidate article q _j. Is displayed on the touch panel 12 so that the map information is transmitted to the mobile terminal device 10. The display control unit 558 of the portable terminal device 10B, in the mobile terminal device 10B, if the user selects the candidate article q _j to browsing, the point where the articles q _j of the selected candidate relates The touch panel 12 is controlled such that the new display area AP2 including the display area AP2 is displayed on the touch panel 12.

(7) In the above-described embodiment, the peripheral area article acquisition units 51 and 551 determine a rectangular area inscribed by a circle separated by a predetermined distance r from the center coordinate C of the display area AP as the peripheral area AQ. It is not limited to this. For example, instead of the center coordinates C, an area that is a predetermined distance r away from any one or more points in the display area AP (for example, points on the periphery of the display area AP) may be used. Further, the peripheral area AQ may be a circle separated from the center coordinate C by a predetermined distance r, and the shape or size thereof can be arbitrarily modified within a range in which the object of the present invention can be achieved.
Further, the peripheral area article acquisition units 51 and 551 do not acquire an article within a predetermined distance r from the center coordinate C, but instead of the article q _j from any one or more points of the center coordinate C or the display area AP. the ascending order of the distance to the point regarding the number of the obtained articles q _j may obtain the article q _j until a predetermined number. According to this modification, it is possible to reliably obtain a predetermined number of articles q _j .

In addition, the blog map providing server 30 further includes a storage unit (storage device 34c) that stores the average expression count of articles in the past period for each of the plurality of unit areas U that do not overlap each other, and the peripheral area article acquisition unit 51 and 551 are ranges of the peripheral area AQ in which it is estimated that a predetermined number of articles are included from the average expression number in each unit area U instead of acquiring articles within a predetermined distance r from the center coordinate C. And an article regarding a point within the determined peripheral area AQ may be acquired.
FIG. 18 is a diagram for explaining the relationship among the unit area U, the display area AP, and the temporary peripheral area AQ _{pro according to} the present modification. The unit area Uk (k = 1, 2, 3,..., W is a natural number) is a rectangular area having the same shape and size, and the storage device 34c of the blog map providing server 30 stores a past period. Is stored for each unit region Uk.
As illustrated, the unit areas U1 to U6 partially overlap with the temporary peripheral area AQ _pro excluding the display area AP. Here, in the figure A1, A2, A31, A32, A4, A6 is a indicates the area of a portion overlapping with each unit area U1~U6 corresponding among the temporary peripheral region AQ _pro, the area of each unit region Uk AA In this case, the ratio of the overlapping portions to the corresponding unit regions U1 to U6 (hereinafter referred to as the overlapping rate) is A1 / AA in the unit region U1, A2 / AA in the unit region U2, and (A31 + A32) / AA in the unit region U3, respectively. The unit area U4 is A4 / AA, the unit area U5 is A5 / AA, and the unit area U6 is A6 / AA. The temporary peripheral area AQ _pro is a minimum area that can be determined as the peripheral area AQ excluding the display area AP, and is an area that is enlarged with the minimum area as an initial area. When the temporary peripheral area AQ _pro is enlarged, the range and the number of unit areas Uk overlapping the temporary peripheral area AQ _pro also change. The minimum area is defined as, for example, a square area inscribed by a circle having the minimum distance r _mim from the center coordinate C of the display area AP.
First, the peripheral area article acquisition units 51 and 551 determine the average number of articles in each unit area U1 to U6 stored in the storage device 34c as the initial area of the temporary peripheral area AQ _pro and the unit areas U1 to U6. (A31 / A in unit area U1, A2 / AA in unit area U2, (A31 + A32) / AA in unit area U3, A4 / AA in unit area U4, A5 / AA in unit area U5, and unit area In U6, the number multiplied by A6 / AA) is summed to obtain an estimated expression number of articles in the temporary peripheral area AQ _pro . If this estimated expression number is less than the predetermined number, the temporary peripheral area AQ _pro Expand the range and find the estimated number of occurrences again. The peripheral area article acquisition units 51 and 551 repeat the process of expanding the range of the temporary peripheral area AQ _pro and obtaining the estimated expression number until the estimated expression number reaches a predetermined number. When the estimated number of expression reaches a predetermined number, the peripheral area article acquisition units 51 and 551 determine the temporary peripheral area AQ _pro from which the latest estimated expression number is obtained as the peripheral area AQ, and from the range of the peripheral area AQ, Get article Q. According to this modification, since the surrounding area AQ is determined based on the statistical value of the number of past occurrences, it is possible to determine a range in which the articles Q acquired from the surrounding area AQ are not too small based on a certain basis.

(8) In the embodiment described above, the trend information generation units 31b and 531b generate regional feature word information, HOT keyword information, topic news information, and topic route information, and the article analysis unit 31a generates trend information. Based on the information generated by the sections 31b and 531, values relating to the respective items of “number of feature names of place names”, “number of HOT keywords”, “includes topical news URL”, and “includes topical route name” are set. However, the present invention is not limited to this. For example, when another server device in the mobile communication network MN or an external server device provides similar information on a website, the article analysis unit 31a may refer to this website. Good. According to this modification, since information provided by another Web site is used, there is an advantage that resources of the blog map providing server 30 can be saved.

(9) In the above-described embodiment, the similarity R _x is calculated according to the coincidence / mismatch of each index of the user attribute when calculating the similarity R _x , but is not limited thereto.
For example, for each contributor and viewer, the body text and profile text of a past article are analyzed, and if the word is described in the body text or profile text, “1” is assigned, otherwise the vector “0” is set. create. Then, the inner product of the poster word vector and the viewer word vector may be calculated and used as the similarity R _x .

Specifically, for example, for a word (term1, term2, term3, term4), the word vector of contributor A is (1,1,1,1), and the word vector of the viewer is (1,0,0). , 1), the similarity R _x = (1 × 1) + (1 × 0) + (1 × 0) + (1 × 1) = 2, and the word vector of contributor B is (0 , 1,1,0) and the viewer's vector is (1,0,0,1), the similarity R _x = (0 × 1) + (1 × 0) + (1 × 0) + (0 × 1) = 0. Note that the word vector may be calculated using the above-described value of tf-idf.

In many cases, words used in article posting texts and profile texts reflect the intentions of contributors and viewers. For this reason, it is possible to determine the degree of similarity based on detailed user characteristics, compared to the case where the degree of similarity is calculated using user attributes such as age and sex.
Moreover, although embodiment mentioned above demonstrated the aspect by which the user attribute data of a registered user is provided from the blog server 20, depending on a registered user, there may be no registration of self attribute data. Moreover, the case where the blog server 20 does not provide user attribute data is also considered. According to the present modification, even in such a case, there is an advantage that the similarity can be used for the evaluation of the importance.

(10) In the above embodiment, articles analyzer 31a, is to calculate the value of all the items 531a is analyzed as an assignment to the amount of information S _x in formula A, for some items of information amount S _x You may exclude from calculation object. For example, when an article poster corresponds to a spam user, or when the body text includes an inappropriate term, the corresponding article may be excluded from the calculation target in advance.
In the above-described embodiment, the formula A is exemplified as the calculation formula for the information amount S _x , but is not limited thereto. In addition, each index used for calculating the information amount is not limited to the one exemplified in the above embodiment, and other indicators indicating the information value (amount of information amount or suitability of information) of each article may be used.

(11) In the above-described embodiment, the profile icon, the user name, the posting date and the posting text are displayed in the balloon image as the article image. However, the present invention is not limited to this, and at least one or two or more of these elements are arbitrarily selected. You may make it display what combined.
As another aspect, when an article includes an attached image such as a photographic image, only the attached image may be displayed instead of displaying the posted text. According to this aspect, the viewer of the map can grasp the contents of the article at a glance.
The mobile terminal devices 10 and 10B may directly acquire the article p _i and the article q _j from the blog server 20 without using the blog map providing server 30.

(12) Other Modifications In the above-described embodiment, when a photographic image is attached as value-added information of an article, the importance of the article increases. However, the embodiment is not limited to a photographic image. It may be value-added information such as voice.
In the above-described embodiment, the latitude / longitude information of each article is determined based on both the latitude / longitude information indicated by the geotag and the latitude / longitude information of the place name derived by analyzing the body text. You may make it use.
In the embodiment, the terminal used when the user browses the blog map is the mobile terminal device 10 or 10B, but is not limited thereto, and may be a stationary personal computer device. Further, the mobile terminal devices 10 and 10B only have to have a communication function, and need not have a telephone function. Moreover, it is not necessary to have a touch panel, and the display unit and the operation unit may be configured separately.
Further, the article is not limited to a text article posted on a blog, a microblog, or the like, and may be, for example, a photograph image article on a photo posting site.

DESCRIPTION OF SYMBOLS 1 ... Blog map display system, 10 ... Mobile terminal device (user terminal), 10B ... Mobile terminal device (map information providing device), 11 ... CPU (peripheral area article acquisition unit, display area article acquisition unit, 1 score calculation unit, second score calculation unit, candidate determination unit, display control unit, average score calculation unit), 12 …… touch panel (display unit), 13 …… communication interface, 14 …… storage unit, 15 …… microphone , 16 …… Speaker, 20 …… Blog server, 30, 30A …… Blog map providing server (map information providing device), 30B …… Blog map providing server, 31 …… CPU (peripheral area article acquisition unit, display area article) Acquisition unit, first score calculation unit, second score calculation unit, candidate determination unit, transmission unit, average score calculation unit), 32 …… display, 33 …… communication interface (transmission unit), 34a ... RAM, 34b ...... ROM, 34c ...... storage device (storage unit), 35 ...... input unit, 40 ...... map information providing server, p _i, q _j ...... article, AP ...... display area, AQ ...... Peripheral area, Uk: Unit area.

Claims (10)

A map information providing device that provides a user terminal with map information on which an article related to a point on a map is displayed, so that the map information can be displayed on a display unit of the user terminal.
A peripheral area article acquisition unit that acquires an article related to a point in the peripheral area excluding the display area, which is an area around the display area displayed on the display unit of the user terminal;
An index related to the importance of articles in the peripheral area acquired by the peripheral area article acquisition unit, an index related to the distance from a point in the display area to a point related to the article, and an index related to the time when the article occurred If the index related to the importance is used, the higher the importance of the article, the higher the value, and the index related to the distance decreases the distance. A first score calculation unit that calculates a score that increases as the value increases and the time at which the article occurs is closer to the current time when the index related to the time is used;
A candidate determination unit that determines the article as a candidate to be presented in the display area when the score of the article calculated by the first score calculation unit is higher than a threshold;
In the user terminal, a transmission unit that transmits map information to the user terminal so that the candidate article determined by the candidate determination unit is displayed in the display area;
A display area article acquisition unit for acquiring articles relating to points in the display area;
The average value of the index related to the importance of the articles in the display area acquired by the display area article acquisition unit, the average value of the index related to the distance from the point in the display area to the point related to the article, An average score calculation unit that calculates an average score of articles in the display area based on at least one of the average values of the indexes related to the time at which the article in the display area occurs;
With
The threshold is calculated based on the average score calculated by the average score calculation unit based on the same index as the index used by the first score calculation unit.
A map information providing apparatus characterized by that . A map information providing device that provides a user terminal with map information on which an article related to a point on a map is displayed, so that the map information can be displayed on a display unit of the user terminal.
A peripheral area article acquisition unit that acquires an article related to a point in the peripheral area excluding the display area, which is an area around the display area displayed on the display unit of the user terminal;
An index related to the importance of articles in the peripheral area acquired by the peripheral area article acquisition unit, an index related to the distance from a point in the display area to a point related to the article, and an index related to the time when the article occurred If the index related to the importance is used, the higher the importance of the article, the higher the value, and the index related to the distance decreases the distance. A first score calculation unit that calculates a score that increases as the value increases and the time at which the article occurs is closer to the current time when the index related to the time is used;
A candidate determination unit that determines the article as a candidate to be presented in the display area when the score of the article calculated by the first score calculation unit is higher than a threshold;
In the user terminal, a transmission unit that transmits map information to the user terminal so that the candidate article determined by the candidate determination unit is displayed in the display area;
For each of a plurality of unit areas that do not overlap each other, a storage unit that stores the average number of expression of articles in the past period, and
The peripheral region article acquisition unit determines a range of the peripheral region that is estimated to include a predetermined number of articles from the average expression number in each unit region, and an article related to a point within the determined peripheral region range To get the
A map information providing apparatus characterized by that . A second score calculating unit that calculates a score based on the same index as the index used by the first score calculating unit, the score of the article in the display region acquired by the display region article acquiring unit;
In the user terminal, the transmission unit includes the candidate article in the peripheral region determined by the candidate determination unit and the article in the display region acquired by the display region article acquisition unit, the first score calculation unit and Transmitting map information to the user terminal so as to be displayed in the display area displayed on the display unit in order from an article having a higher score calculated by the second score calculation unit;
The map information providing apparatus according to claim 1 , wherein: A score of an article acquired by the display area article acquisition unit, further comprising a second score calculation unit that calculates a score based on the same index as the index used by the first score calculation unit;
In the user terminal, the transmission unit displays the articles in the display region acquired by the display region article acquisition unit in the display region in order from the article having the highest score calculated by the second score calculation unit, Subsequently, the candidate articles in the peripheral area determined by the candidate determination unit are displayed in the display area displayed on the display unit in order from the article having the highest score calculated by the first score calculation unit. So as to transmit the map information to the user terminal,
The map information providing apparatus according to claim 1 , wherein: The index related to the distance is calculated from the reciprocal of the square value of the distance from the point in the display area to the point related to the article.
The map information providing apparatus according to any one of claims 1 to 4, wherein the map information providing apparatus is provided. The peripheral area article acquisition unit acquires articles until the number of acquired articles reaches a predetermined number in ascending order of distance from the display area to a point related to the article,
The map information providing apparatus according to claim 1, wherein the map information providing apparatus is provided. For each of the plurality of unit areas that do not overlap each other, further comprising a storage unit that stores the average number of articles in the past period,
The peripheral region article acquisition unit determines a range of the peripheral region that is estimated to include a predetermined number of articles from the average expression number in each unit region, and an article related to a point within the determined peripheral region range To get the
6. The map information providing apparatus according to claim 1, 3, 4 or 5 . In the user terminal, when the candidate article is selected for browsing by the user of the user terminal, the transmission unit includes a new display area including a point related to the selected candidate article. Transmitting map information to the user terminal to be displayed on the display unit;
The map information providing device according to claim 1, wherein the map information providing device is a map information providing device. A display unit for displaying map information in which articles related to points on the map are displayed;
A peripheral region article acquisition unit that acquires an article related to a point in the peripheral region excluding the display region, which is a peripheral region of the display region displayed on the display unit;
An index related to the importance of articles in the peripheral area acquired by the peripheral area article acquisition unit, an index related to the distance from a point in the display area to a point related to the article, and an index related to the time when the article occurred If the index related to the importance is used, the higher the importance of the article, the higher the value, and the index related to the distance decreases the distance. A first score calculation unit that calculates a score that increases as the value increases and the time at which the article occurs is closer to the current time when the index related to the time is used;
A candidate determination unit that determines the article as a candidate to be presented in the display area when the score of the article calculated by the first score calculation unit is higher than a threshold;
A display control unit that controls the display unit such that the candidate article determined by the candidate determination unit is displayed in the display area;
A display area article acquisition unit for acquiring articles relating to points in the display area;
The average value of the index related to the importance of the articles in the display area acquired by the display area article acquisition unit, the average value of the index related to the distance from the point in the display area to the point related to the article, An average score calculation unit that calculates an average score of articles in the display area based on at least one of the average values of the indexes related to the time at which the article in the display area occurs;
With
The threshold is calculated based on the average score calculated by the average score calculation unit based on the same index as the index used by the first score calculation unit.
A user terminal characterized by that . A map information providing method for providing a user terminal with map information on which an article related to a point on a map is displayed so that the map information can be displayed on a display unit of the user terminal
An area around the display area displayed on the display unit of the user terminal, and obtaining an article related to a point in the peripheral area excluding the display area,
Score based on at least one of the obtained index related to the importance of the article in the peripheral area, the index related to the distance from the point in the display area to the point related to the article, and the index related to the time when the article occurred When the index related to the importance is used, the value becomes higher as the importance of the article is higher, and when the index related to the distance is used, the value becomes higher as the distance is smaller. When the index is used, the score that increases as the time when the article occurs is closer to the current time,
If the calculated score of the article in the peripheral area is higher than a threshold, determine the article as a candidate to be presented in the display area,
At the user terminal, as determined the candidate article is displayed in the display area, and transmits the map information to the user terminal,
Get an article about a point in the display area,
The average value of the index related to the importance of the articles in the display area acquired, the average value of the index related to the distance from the point in the display area to the point related to the article, and the article in the display area Calculate an average score of articles in the display area based on at least one of the average values of the indicators related to the time of occurrence,
The threshold is calculated based on the average score calculated based on the same index as the index used to calculate the score .
How to provide map information.

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