JP3614756B2 - Personal adaptive information guidance method and system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information guidance method and system for recognizing a user's current position using GPS or the like in a user's activity for the entire real world and providing the user with information related to the position.
[0002]
[Prior art]
Conventionally, a mobile information terminal connected to a GPS or other position measurement system measures the current position of the user, expresses the position on a map, and presents document information or image information related to the position to the user. For example, the following technique is proposed.
[0003]
(Reference 1) Takeshi Nagao, Junichi Kyokumoto, Junichiro Ito, Masaki Yagi, Michiaki Yasumura,
Walk Navi: Location-aware interactive information guidance system, interactive system and software 3, pp. 39-48, Modern Science, 1995
(Reference 2) Nagao,
Agent Augmented Reality bit, Vol. 31, no. 5, pp. 66-76, 1999
The former is a walk navigation system that uses GPS to recognize a user's current location, expresses the recognized results on a map, provides the user with web information related to that location, and supports their activities. A system is proposed. In the latter case, in the on-campus navigation system called Hyper Campus, not only the current situation such as the current position and current time of the user, but also personal information pre-registered in the system is used for personalization. The personalized information guidance technology that presents the recorded information and records the visited place and the accessed information as an action history is realized. In these techniques, association between an arbitrary place in the real world and guidance information is performed manually by a system designer or the like.
[0004]
[Problems to be solved by the invention]
However, in the above-described prior art, since the correspondence between an arbitrary place in the real world and information is performed by a specific person, it takes time and effort to associate the two, and the relationship between the two is There is a problem that it depends on the subjectivity and production intention of the person performing the attachment, and cannot always meet the demands of users with diverse viewpoints and interests.
[0005]
Also, in activities such as travel, reflecting the user's past and future context in the guidance information to the user may be more meaningful information for the individual user, but this is not always possible with the technology described above. There was a problem of not being. For example, suppose that in a trip to Kyoto or Nara, there is another temple B or shop C that is historically or culturally strongly related to the temple A that the user has already visited around the place where the user is currently located. In such a case, it is conceivable that the temple B and the shop C are strongly interested for the individual user. Therefore, in the guidance information to the user, it is better information guidance for the user to guide the information of the temple B and the shop C including the relevance with the temple A visited by the user. However, although the above-mentioned conventional technology has realized the technology to leave the user's behavior history, there is no mechanism for dynamically and flexibly linking the behavior history information and future schedule information to the current situation of the user. Even if the existence of B and the shop C can be guided, there is a problem that the relevance to the temple A (which the user has visited) cannot always be guided.
[0006]
An object of the present invention is that the correspondence between a place and information does not depend on a specific human subjectivity or production intention, and the personal adaptive information guide that reflects the current, past, and future context information of the user. It is to provide a method and system.
[0007]
[Means for Solving the Problems]
The personal adaptive information guidance method of the present invention comprises:
In the client part,
A situation recognition step for recognizing the current position of the user using the situation recognition system;
User's current position information obtained by the situation recognition step, past action history information including text information registered by the user and longitude / latitude information of the place visited by the user in the past, location information of the visited place and the user An upload step for sending future schedule information including registered text information from the client part to the server part,
Have a,
In the server part,
A position search step for performing a search using the current position information of the user transmitted by the upload step as a search condition for a predetermined knowledge information set;
The text information registered by the user in the past action history information is subjected to morphological analysis to extract a noun, the latitude and longitude information in the past action history information is converted into address name information, the extracted noun and the Forming a first search formula by AND with the address name information, extracting a noun by applying morphological analysis to text information registered by the user in the future schedule information, and extracting the noun and the future schedule information A second search expression by AND with the location information of the visited place in the middle, creating a third search expression by OR combination of the first search expression and the second search expression, Using a search formula, a search step for selecting relevant information by compressing the result of the position search step;
A download step of transmitting related information obtained by the squeeze search step from the server unit to the client unit;
Have
The client unit includes an information presentation step of displaying the related information received in the download step on the display of the client unit.
[0008]
The present invention recognizes a user's current position using a situation recognition system such as GPS, and takes into account the user's current position information, user's past action history information, future schedule information, etc. By searching the knowledge information set, the user is provided with information that depends on the current situation and the past and future context.
[0009]
For example, if the present invention is applied to an information guidance / navigation system for travel, etc., in the information gathering activity of the user, “If you have been to XX temple, stop by △△ temple near here. "Please refer to the following information for the reason." On the contrary, "If you are going to the XX temple from now on, it is recommended to stop by the △△ temple near here. Please refer to the following information for the reason. ”Or“ If you come to XX temple and go to △△ temple in the future, we recommend that you stop by a nearby □□ store. It is possible to implement a recommendation function that takes into account the current, past, and future context of the user, such as “Please refer to the following information for the reason.”
[0010]
In addition, the information search technique and information presentation technique in consideration of the past and future context information of the user in the present invention can be applied to normal keyword search. For example, if such a keyword search is used when a user collects information using the Internet or the like about an object that is interested or interested in a travel destination or the like, it is information about the object, and the user's past, Information that depends on future contextual information is obtained, and the user can discover and understand the relationship between the desired target and the places visited / viewed so far, as well as the places visited / viewed in the future. I can do it.
[0011]
According to the embodiment of the present invention, the situation recognition step periodically measures the user's current position by the position measurement system, and if the user has stayed at a certain place for a certain period of time, the position is Is recorded in the personal information recording unit of the client unit together with the staying time information.
[0012]
According to the embodiment of the present invention, the situation recognition step automatically acquires the shooting position information when the user takes an image at a certain place using the position measurement system and the image shooting system linked thereto. Then, the position information, the photographed image information, and the photographing time information are recorded in the personal information recording unit of the client unit.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a configuration diagram of a personal adaptive information guidance system according to an embodiment of the present invention.
[0018]
This system has a so-called server / client configuration, and a portable computer 1 as a client and a workstation 2 as a server are basic components. An encyclopedia database 3 is connected to the workstation 2. In the encyclopedia database 3, various articles such as history and culture are stored for each headword. The workstation 2 is connected to the Internet 4 and can access the WWW. The workstation 2 is a so-called computer system that includes a main memory, a CPU, a display, a keyboard, and the like. However, since the configuration is well known, the details are omitted here. On the other hand, the portable computer 1 has an input having a main memory 10, a CPU 12, a display 13, a wireless data communication unit 14, a GPS receiving unit 15, an image photographing unit 16, a personal information recording unit 17, an electronic map database 18, a pen interface, and the like. The device unit 19 includes a ROM 11 in which various programs for controlling the above-described units are recorded.
[0019]
The wireless data communication unit 14 is connected to the workstation 2 via the Internet 4 and executes server-client communication.
[0020]
The GPS receiver 15 receives radio waves transmitted by the GPS system, and acquires position information (such as latitude / longitude information) of the reception location and time information of the reception time. In addition, the GPS receiving unit 15 is linked to the image capturing unit 16, and when the image is captured, the GPS receiving unit 15 is also activated to acquire the capturing position information and the capturing time information of the captured image. The personal information recording unit 17 records location information of a place visited by the user in the past, stay time information, and the like. Further, when an image is taken by the image photographing unit 16, photographing position information, photographing time information, and a file name of the photographed image are recorded in the personal information recording unit 17, and text information such as a comment is also registered by the user. The Note that the captured image file is also stored here. In the personal information recording unit 17, schedule information such as address name information scheduled to be visited by the user and scheduled visit time information is also registered.
[0021]
FIG. 2 is a flowchart showing the flow of the personal adaptive information guidance process in this system. First, in the situation recognition process 21, the GPS receiving unit 15 of the portable computer 1 receives a GPS signal, acquires the current position and time of the user, and records them in the personal information recording unit 17. If the differential GPS system can be used in the portable computer 1, it is desirable to correct the position information acquired above.
[0022]
In the situation recognition process 21, when the GPS receiving unit 15 periodically measures the current position of the user and measures that the user has stayed at a certain place for a certain period of time, the CPU 12 determines the position of the user. Can be recorded as user action history information in the personal information recording unit 17 together with the staying time information. Further, in the situation recognition process 21, when the user has taken an image at a certain location using the GPS receiving unit 15 and the image capturing unit 16 linked to the GPS receiving unit 15, the GPS receiving unit 15 automatically acquires the shooting position information. The CPU 12 can record the position information, shooting time information, and shot image information in the personal information recording unit 17 as user action history information. FIG. 4 shows a recording example in which user action history information is recorded in an action history file stored in the personal information recording unit 17 of the portable computer 1.
[0023]
In consideration of a visit to a place where the GPS system cannot be used, it is desirable that the action history file has an interface that can be directly edited by the user.
[0024]
In PHS, a service for searching an approximate location and displaying it on a map is provided. For example, NTT DoCoMo provides a service called “Now Where Service” that searches for an approximate location anywhere within the PHS area, displays it on a map, and transmits it to the user by fax. In such a location information service, by transmitting the searched location as location information to the portable computer 1, the GPS receiver 15 is unnecessary, and a terminal that does not have the GPS receiver 15 such as PHS is used as a client. It is also possible to do.
[0025]
In the personal information recording unit 17, schedule information such as a user's planned visit location and planned visit time can also be recorded in advance by the user. FIG. 5 shows a recording example in which user schedule information is recorded in a schedule file stored in the personal information recording unit 17 of the client.
[0026]
Next, in the upload process 22, the current position information and current time information recorded in the personal information recording unit 17, the action history information recorded in the action history file, and the schedule information recorded in the schedule file are transmitted by wireless data communication. Upload to the workstation 2 via the unit 14 and record in the main memory of the workstation 2. In the upload process 22, before each action history and schedule information is uploaded to the workstation 2, the contents to be transmitted are output to the display 13 of the portable computer 1, and the user is asked to understand and need to be corrected. In this case, it is desirable that the user can make corrections using the input device unit 19.
[0027]
Next, in the related information collection process 23, a search is performed on the knowledge information set such as the encyclopedia database 3 or the WWW using the uploaded current position information as a search condition. Select those that depend on the user's past and future context.
[0028]
FIG. 3 is a flowchart showing a detailed flow of the related information collection processing 22.
[0029]
First, in the position search process 31, the current position information recorded in the main memory of the workstation 2 in the upload process 22 is submitted to the encyclopedia database 3 or the WWW search engine, and the user's current position is used as a search condition. Perform a search and collect information around the current location. The search result is recorded in the main memory of the workstation 2 together with the distance information to the current position. However, the distance information is defined by the distance value between the current position and the position information such as the address name or latitude / longitude described in the search target, which is closest to the current position.
[0030]
Next, in the squeeze search process 32, information that depends on the past and future contexts of the user in consideration of the current time information recorded in the main memory of the workstation 2 from the search results, that is, the action Select information related to history information and schedule information. Note that the squeeze-in search process 32 and the next sort process 33 are performed using the CPU and main memory of the workstation 2.
[0031]
First, a search expression used for the full search is created from the action history information and schedule information recorded in the main memory of the workstation 2 as follows.
[0032]
When the information recorded in the main memory of the workstation 2 is user action history information:
(A) When information is also registered in the comment attribute, the registered text information is subjected to morphological analysis to extract nouns and convert them into keywords, and the position attribute (of latitude and longitude) is converted into address name information. Thus, an AND search formula for both is created.
[0033]
(B) If no information is registered in the comment attribute, the position attribute (of latitude and longitude) is converted into address name information, and a search formula is created by itself.
[0034]
When the information recorded in the main memory of the workstation 2 is the user's schedule information:
(C) If information is also registered in the comment attribute, the registered text information is subjected to morphological analysis to extract nouns and convert them into keywords, and an AND search expression is created between the keywords and the address name information of the visited work To do.
[0035]
(D) When no information is registered in the comment attribute, a search formula is created only with the address name information of the visited site.
[0036]
In the above manner, a (partial) search expression is created from the action history and schedule data, and then a search expression based on the OR combination of them is created. By re-squeezing the result of the position search processing 31 using this (compound) search formula, related information depending on the user's past and future context information (at least one data thereof) is selected.
[0037]
Finally, in the sorting process 33, the result of the above-mentioned reduction is ordered in consideration of the degree of relevance with the above compound search expression and the distance information (distance between the search target and the current position) calculated in the position search process 31. wear. The related information collection process 23 is terminated by the above series of processes, and the download process 24 is performed next.
[0038]
In the download process 24, the result obtained in the sort process 33 is downloaded to the portable computer 1 and recorded in the main memory 10.
[0039]
Finally, in the information presentation process 25, the CPU 12 displays a list of information recorded in the main memory 10 of the portable computer 1 on the display 3. The personal adaptive information guidance process is thus completed.
[0040]
The information presentation process 25 allows the user to select desired related information from the list display using the input device unit 19, and details of the selected information and related information of the action history and schedule Is preferably displayed on the display 13. Furthermore, in the information presentation process 25, it is desirable to read out map information around the current position from the electronic map database unit 18 of the portable computer 1 so that the search result can be displayed on the map information.
[0041]
FIG. 6 shows a screen example in which the search result is displayed on the display 13 of the portable computer 1 together with the map information around the current position. FIG. 7 shows an example of a screen displayed on the display 13 of the portable computer 1 together with the action history and schedule information related to the details of the desired information selected by the user.
[0042]
In addition, when the situation recognition process 21, the upload process 22, and the related information collection process 23 are periodically executed and related information satisfying a condition specified in advance by the user is searched in the workstation 2, the information of the information The download process 24 may be executed and transmitted to the portable computer 1 and displayed on the display 13 by the information presentation process 25 to alert the user.
[0043]
2 and 3 may be recorded on a recording medium such as a floppy disk, a CD-ROM, or a magneto-optical disk and executed by the portable computer 1 and the workstation 2.
[0044]
【The invention's effect】
As described above, according to the present invention, the current situation of the user is recognized using a situation recognition system such as GPS, and the recognition result, the user's past action history information, future schedule information, and the like are taken into consideration. By searching a collection of knowledge information such as an encyclopedia database in a form, it is possible to provide the user with information that depends on the current situation, past and future context, and to provide more personalized guidance information to the user It becomes possible.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a personal adaptive information guidance system according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a flow of personal adaptive information guidance processing in the system of FIG. 1;
FIG. 3 is a flowchart showing a detailed flow of related information collection processing 23;
FIG. 4 is a recording example in which user action history information is recorded in an action history file stored in a personal information DB unit of the portable computer 1;
FIG. 5 is a recording example in which user schedule information is recorded in a schedule file stored in a personal information DB section of the portable computer 1;
FIG. 6 is a screen example in which a result of related information collection processing 23 is displayed on the display 13 of the client together with map information around the current position.
FIG. 7 is an example of a screen displayed on the display 13 of the portable computer 1 together with related user profile information with details of desired related information selected by the user.
[Explanation of symbols]
1 portable computer 10 main memory 11 ROM
12 CPU
13 Display 14 Wireless Data Communication Unit 15 GPS Reception Unit 16 Image Shooting Unit 17 Personal Information Recording Unit 18 Electronic Map Database Unit 19 Input Device Unit 2 Workstation 3 Encyclopedia Database 4 Internet 21 Situation Recognition Processing 22 Upload Processing 23 Related Information Collection Processing 24 download process 25 information presentation process 31 position search process 32 squeeze search process 33 sort process

Claims (6)

A method of providing information that depends on the current situation of the user and the context of the past and future for the entire real world,
In the client part,
A situation recognition step for recognizing the current position of the user using the situation recognition system;
User's current position information obtained by the situation recognition step, past action history information including text information registered by the user and longitude / latitude information of the place visited by the user in the past, location information of the visited place and the user An upload step of transmitting future schedule information including registered text information from the client unit to the server unit;
Have
In the server part,
A position search step for performing a search using the current position information of the user transmitted by the upload step as a search condition for a predetermined knowledge information set;
The text information registered by the user in the past action history information is subjected to morphological analysis to extract a noun, the latitude and longitude information in the past action history information is converted into address name information, the extracted noun and the Forming a first search formula by AND with the address name information, extracting a noun by applying morphological analysis to text information registered by the user in the future schedule information, and extracting the noun and the future schedule information A second search expression by AND with the location information of the visited place in the middle, creating a third search expression by OR combination of the first search expression and the second search expression, Using a search formula, a search step for selecting relevant information by compressing the result of the position search step;
And download sending related information obtained by the refine step from the server unit to the client unit,
Have
The personal adaptive information guidance method which has the information presentation step which displays the related information received by the said download step on the display of the said client part in the said client part. In the situation recognition step, the current position of the user is periodically measured by the position measurement system, and when the user has stayed at a certain place for a certain period of time, the position is interpreted as having been visited by the user. Te, and records the position information along with residence time information in the personal information storage unit of the client unit, personal adaptive information guidance method according to claim 1, wherein. In the situation recognition step, when a user takes an image at a certain place using a position measurement system and an image photographing system linked thereto, the photographing position information is automatically acquired, and the position information and the photographing are performed. image information, the photographing time information is recorded in the personal information storage unit of the client unit, personal adaptive information guidance method according to claim 1, wherein. A system that targets the entire real world and provides information that depends on the user's current situation and past and future contexts,
It has a client part and a server part,
The client part is
Situation recognition means for recognizing the current position of the user using the situation recognition system;
User's current position information obtained by the situation recognition means, past action history information including text information registered by the user and latitude / longitude information of the place visited by the user in the past, location information and user of the destination and uploading means for transmitting the schedule information of the future to the server portion including the text information that has been registered by the
Have
The server part is
Position search means for performing a search using the current position information of the user transmitted by the upload means as a search condition for a predetermined knowledge information set;
The extract nouns subjected morphological analysis text information registered by the user in the past action history information, the converted latitude and longitude information in the past action history information in the address name information, before Symbol extracted nouns Forming a first search expression by AND with the address name information, extracting a noun by performing morphological analysis on text information registered by the user in the future schedule information, and extracting the noun and the future schedule Forming a second search formula by AND with the location information of the visited place in the information, creating a third search formula by OR combination of the first search formula and the second search formula, A search method for selecting relevant information by squeezing the result of the position search unit using the search formula of
Download means for transmitting the relevant information obtained by the squeeze search means from the server part to the client part;
Have
The client unit, personal adaptive information guidance system further comprising an information presenting means for displaying the related information received from the downloading means on a display of the client unit. The situation recognizing means periodically measures the current position of the user by the position measurement system, and when it is measured that the user has stayed at a certain place for a certain period of time, interprets the position as having been visited by the user. Te, and records the position information along with residence time information in the personal information storage unit of the client unit, personal adaptive information guidance system according to claim 4. The situation recognition means automatically acquires the shooting position information when the user takes an image at a certain location using the position measurement system and an image shooting system linked to the position measurement system, and acquires the position information and the shooting. The personal adaptive information guidance system according to claim 4 , wherein image information and photographing time information are recorded in a personal information recording unit of the client unit.

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