JP2010152679A - Information presentation device and information presentation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide content at a timing in which an action to be evoked when a user browses content is executable. <P>SOLUTION: An action label assignment unit 130 extracts a content keyword, with multiple labels being assigned to a keyword. At a per-action score calculation unit 140, a score is calculated per action label for a keyword to which an action label has been assigned. A notification trigger condition assignment unit 150 assigns a notification trigger condition per action label for a keyword. Using the score calculated by the per-action score calculation unit 140, a presentation timing determination unit 180 checks whether a condition stored in a notification trigger condition storage unit 160 has been met, and a condition which is needed to assign a notification trigger for each action label for a keyword is stored. If the conditions for a notification trigger are fulfilled, the presentation timing determination unit 180 obtains presentation content from a content storage unit 110 and presents the same on a display 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to an information presentation apparatus and an information presentation method that take into account situation information placed by a user.

  There is a recommendation system that takes into account individual preferences using the user's content browsing history, etc., and a system that recommends content that can be executed on the spot using the user's current situation. there were.

  For example, based on the preference information extracted from the user's profile, information on the application being executed obtained from the mobile terminal, radio wave conditions, etc., the degree of recommendation to recommend to the user for each content of multiple applications is obtained and recommended A recommendation system adapted to individual preferences by assigning priorities to each application according to the degree has been proposed (see, for example, Patent Document 1). In this system, an action such as “Browse homepage” is designated in advance for the “Web” application, and the recommended degree for each action for the content in each application, such as “Browse” for the specific content “XXXX”. Are respectively presented to the user by comparing them.

However, in the technique disclosed in Patent Document 1, only an action associated with a content category or genre that suits the preference is recommended in advance, and the action that the user is prompted by browsing the content is considered. Not. Therefore, the content is recommended even in a situation where the action cannot be executed.
JP 2006-313486 A

  The objective of this invention is providing the said content at the timing which can perform the action aroused by a user browsing a content.

  A first invention is an information presentation device that presents information to a user, a content storage unit that stores content information, a schedule storage unit that stores a user schedule, and an acquisition unit that acquires the device surroundings and user status information And an estimation unit that estimates a user's current situation using the user's schedule information and the situation information, action labels of actions that the user can take for the keywords included in the content, and the frequency at which the action is taken. A behavior information storage unit to store, a behavior label assigning unit that assigns the behavior label to the keyword, a calculation unit that calculates a score of the behavior label based on a behavior ontology, and a notification that is a condition for notifying a user A notification trigger condition storage unit for storing a trigger condition; and an action label including the calculated score. A notification trigger condition assigning unit that assigns a user condition, a presentation timing determination unit that determines a presentation timing of the content information that is a source of the keyword from the estimated current situation of the user and the notification trigger condition, and An information presentation apparatus comprising: a display unit that displays the determined content information to a user.

  In addition, in the second invention, an information presentation device for presenting information to a user, using the acquisition unit that acquires the situation information around the device, the user's schedule information, and the situation information, the current situation of the user And a notification trigger condition that is a condition for notifying the user of the action information that can be taken by the user with respect to the content information presented to the user from outside and the keyword included in the content A transmission / reception unit, a presentation timing determination unit that determines the presentation timing of the content information that is the basis of the keyword based on the estimated current situation of the user and the notification trigger condition, and the content information whose presentation timing is determined to the user It is an information presentation device provided with a display part to display.

  According to a third aspect of the present invention, in the calculation unit, the reputation information in the content information is obtained by using a sensitivity expression ontology expressing a sensitivity expression for the content attribute and a degree of affirmation or denial in a hierarchical graph structure. The information presenting apparatus is used for calculating a score of the action label.

  According to a fourth aspect of the present invention, in the information presentation device, the calculation unit uses current positive / negative information of the content for score calculation of the action label.

  According to the present invention, a user can be obtained in real time from a terminal by estimating an action that can be taken by action ontology with respect to a keyword included in content, and giving it as a condition trigger for a situation to notify the user for each action label. By determining the notification timing from the situation information and the notification trigger condition, it becomes possible to present the content to the user at a timing at which a possible action can be performed.

  Embodiments of the present invention (hereinafter referred to as “embodiments”) will be described below with reference to the drawings.

[First embodiment]
FIG. 1 is a block diagram showing an information presentation apparatus according to the present embodiment. The information presentation device 10 (for example, a notebook computer) includes a display 11, an operation unit 12, an antenna 13, a communication processing unit 14, a status sensor 15, a sensor processing unit 16, and a content storage unit 110.

  The communication processing unit 14 is connected to the antenna 13 and controls communication with the outside and connection to the Internet. Information acquired from the Internet, for example, content on the network, is transferred from the antenna 13 through the communication processing unit 14 to the content storage unit 110 and stored therein.

  The content (for example, a web page) stored in the content storage unit 110 is transmitted to the action label assigning unit 130. The behavior label assigning unit 130 extracts the keyword of the content, acquires the behavior label corresponding to the keyword from the behavior ontology storage unit 120, and a plurality of labels are assigned to the keyword. The action ontology storage unit 120 is configured by, for example, a flash memory, and stores action ontology dictionary information such as action labels indicating user actions. The keyword to which the action label is assigned calculates the score for each action label in the action-specific score calculation unit 140. Details of the score calculation will be described later.

  The notification trigger condition assigning unit 150 assigns a notification trigger condition for each keyword action label. The notification trigger condition is stored in the notification trigger condition storage unit 160. The provision of the notification trigger condition will be described later.

  The presentation timing determination unit 180 checks whether or not the notification trigger condition stored in the notification trigger condition storage unit 160 is satisfied using the score calculated by the behavior-specific score calculation unit 140. The notification trigger condition storage unit 160 is configured by, for example, a flash memory, and stores conditions necessary for giving a notification trigger (for example, a certain score threshold is satisfied) for each action label of a keyword. If there is a condition that satisfies the notification trigger, the presentation timing determination unit 180 acquires the content from the content storage unit 110 and presents the content on the display 11.

  The situation sensor 15 detects the situation or environment information in which the information presentation device 10 is placed, and the obtained sensor data is processed in the sensor processing unit 16 to recognize the situation. Examples of the situation sensor 15 include a GPS (Global Positioning System) receiving unit, a wireless base station ID detection and wireless reception intensity detection unit using a wireless LAN (Local Area Network), an acceleration sensor, an atmospheric pressure sensor, A temperature sensor, illuminance sensor, etc. can be considered. Mainly, status information (for example, position information and weather information) of the information presentation device 10 is acquired by the sensor processing unit 16 using GPS or wireless LAN information. The acquired information is transferred to the situation estimation unit 170. The situation estimation unit 170 receives the operation input to the operation unit 12 or the user schedule stored in the schedule storage unit 190, and uses the information together with the previously acquired information to estimate the current situation of the user. . For example, characters and commands can be input to the operation unit 12 like a keyboard. In this case, in this embodiment, the input information is set to the user's schedule. The estimated information is transmitted to the presentation timing determination unit 180.

  The presentation timing determination unit 180 determines the timing of presenting information based on the situation around the device estimated to be received from the situation estimation unit 170 and the notification trigger condition information received from the notification trigger condition providing unit. When it is determined that information is presented, the information is displayed on the display 11. The display 11 is an information display unit configured by, for example, a liquid crystal screen display, and displays an input and converted character string and information.

  FIG. 2 explains the processing flow of this embodiment. First, content that can be presented to the user is acquired via the antenna 13 and the communication processing unit 14 and stored in the content storage unit 110 (step 201). An acquisition example will be described later.

  Next, the action label assigning unit 130 extracts keywords from the content, acquires action labels corresponding to the keywords from the action ontology storage unit 120, and assigns one or more labels to the keywords (step 202). . Next, the action-specific score calculation unit 140 calculates a score for each action label for the keyword (step 203). The score is calculated from, for example, the weight W of the combination of the keyword and the action label on the action ontology, the appearance frequency N of the keyword in the content, the degree of matching P with the user's preference, and the like. Detailed mathematical formulas will be described later.

  Next, the notification trigger condition assigning unit 150 assigns a notification trigger condition for each keyword action label (step 204). Then, the situation information estimation unit 170 acquires the situation information of the information presentation device 10 by the sensor processing unit 16 and uses the situation information estimation unit 170 together with the operation input to the operation unit 12 and the user's schedule. Estimate (step 205). The presentation timing determination unit 180 checks whether or not the notification trigger condition to which the estimated situation information is assigned is satisfied (step 206). In this check, the determination is made by calculating the feasibility of each action label for the keyword (step 206). If there is no content that satisfies the notification trigger condition, the current situation of the user is estimated again (N in step S206). If there is content whose execution possibility satisfies the notification trigger condition specified in advance (Y in step S206), the corresponding content is presented (step 207). The corresponding content is determined to be executable by the next action, and the content is displayed on the presentation unit 11.

  After presenting the corresponding content, it is checked whether there is any other content that can be presented (step S208). If there is other content, the current situation of the user is estimated again (Y in step S208). If there is no other content, the process ends (N in S208).

  FIG. 3 shows a browsing history such as a web page browsed by the user, a video stored as a browsing history 301 in the content storage unit 110 and viewed. This browsing history is obtained as content. For example, when a user looks at a blog gourmet diary and browses articles “Crispy Donut” and “Bad Pizza”, this page information is stored as content in the browsing history. This browsing history 301 is stored in the content storage unit 110.

  Next, action label assignment for a keyword will be described.

  FIG. 4 illustrates the behavior ontology. The behavior ontology includes a keyword, a behavior label co-occurring with the keyword, and a frequency of the behavior label.

  As shown in FIG. 4, action labels 401 such as “eat”, “buy for souvenir”, and “see” are given to “Crispy Donut”, and “Travel” is given to “Easter Island”. Labels 402 such as “view a picture” and “view a map” are given. A combination weight W is set between the keyword and the action label. For example, the weight is calculated from the frequency at which the keyword and the action label co-occur when the action ontology is created. In this case, for the action labels “eating”, “buying for souvenirs”, and “seeing” co-occurring with “Crispy Nut”, the coupling weights W are 5, 3, and 2, respectively, depending on the co-occurrence frequency. Similarly, in the case of “Easter Island”, the combination weights W for the action labels “Travel”, “View a photo”, and “View a map” are 7, 2, and 1 according to the frequency of co-occurrence.

  Next, calculation of the score given to the action label will be described.

  501 in FIG. 5 is an example in which the score is calculated using the content shown in FIG. The score is obtained by using, for example, S (K, L) = joint weight W on action ontology of keyword K and action label L, keyword appearance frequency N, user preference score P, reputation score C, and topicality score T. Calculated by W × (N + P + C + T). Here, the appearance frequency N is calculated from the text portion of the web page and the text portion such as program metadata attached to the video, for example, Electronic Program Guide (EPG) or closed caption information (Closed Caption). In addition, the preference score P is calculated based on, for example, a keyword preference vector created from the keyword appearance frequency extracted from the entire long-term browsing history of the user, and the similarity with the keyword vector included in the content. The reputation score C is calculated, for example, as the number of appearances of positive expressions in the sensitivity expression ontology. The topicality score T is calculated, for example, as the number of appearances of a keyword that is positively or negatively determined as current.

  In this example, the score S of “crispy nuts” and “eating” is 5 × (3 + 2 + 2 + 1) = 40. In the case of “bad pizza” and “eat”, the score S (bad pizza, eat) is 8 × (1 + 1 + (− 2) +0) = 0.

  Next, processing for assigning a notification trigger condition will be described.

  FIG. 6 shows a notification trigger condition 601 and an action related situation element table 602. The notification trigger condition 601 stores notification trigger conditions for various keywords and action labels. For example, in the case of “Crispy Nut” “Eat” and score 40, the notification trigger condition is within a distance of 40 * X meters, a scheduled free time of 2 hours or more, or a tee time. With reference to the action-related situation element table 602 that lists elements to be added to the action label prepared in advance, a notification trigger condition is given from the element group to be added to the action label L and the score S, and the notification trigger condition is stored. Stored in the unit 160. In this example, elements that take into account the action of “eating” are “distance to the store”, “next schedule”, “business hours”, “required time”, and “time zone”.

  FIG. 7 shows an example in which real-time status information, for example, status 701 such as date and time, current location, travel status, predicted destination, and next schedule is acquired. With respect to the timing for acquiring the situation information, a method such as acquisition at regular intervals or acquisition when the situation changes can be considered. Using this situation information, the user's current information is estimated by referring to the user's schedule. In this example, for the current situation, from the location information obtained from GPS, date 6/29 (Sunday) 13:25, current location Shinjuku Station South Exit, moving situation Walking, expected destination Shinjuku South Exit department store, from the schedule Next schedule 14:00 Get information about billiards (Shinjuku) with friends.

  Next, an example in which the presentation timing is determined based on the notification trigger condition and the estimated current user information will be described.

  In FIG. 8, there is a store “Crispy Nut” near the current location, but since there is little time until the next schedule, the actions of “eat” and “buy for souvenirs” are less feasible. However, the action of “watching” is highly feasible because it takes a short time and is presented. In this way, content related to a donut shop that is a topic only by “watching” is presented in a timely manner.

  FIG. 9 shows an example of presenting content that meets the notification trigger condition.

  In FIG. 9, according to the content 802 acquired from the browsing history 301, information 801 recommending an action that can be performed on the content, detailed information 803 related to the content, and the like are presented. Detailed information 803 is acquired from the content storage unit 110. For example, when viewing a crisp speed nuts blog of content 802, information on “crisp speed nuts-can now be seen” is presented in 801 together. Simultaneously, store information, a telephone number, a map, etc. are displayed on 803 by referring to the facility information database, for example.

  FIG. 10 shows a sensitivity expression ontology 901 that expresses a sensitivity expression for a keyword attribute and a degree of affirmation or denial in a hierarchical graph structure. A configuration is also conceivable in which reputation information for a keyword in content is used for score calculation using a sensitivity expression ontology 901. Since keywords with good reputation information are considered to have a high possibility of invoking action, it is possible to present more useful content. For example, in the history of FIG. 4, “Crispy Nut” having “delicious” and good reputation information has a high score, and “bad pizza” having “bad” and bad reputation information has a low score. This ontology is stored in the action ontology storage unit.

  The behavioral score calculation unit 140 may be configured to use the current positive / negative information of keywords for score calculation. In particular, a keyword related to negative news is unlikely to be executed as the next action. Therefore, it is possible to present with such content suppressed. For example, when there is recent news 901 as shown in FIG. 11, it is considered that the action for “Akihabara” where the incident occurred and the action for “XX cow” with suspected camouflage are often avoided. Even if presented, there are few merits for the user. Therefore, for example, “Akihabara” or “XX cow” co-occurring with keywords with negative meanings such as “killing” and “spoofing” can be presented by giving a negative score according to the co-occurrence frequency. Can be suppressed. Conversely, keywords that co-occur with keywords that have a positive meaning can be actively presented. For example, for “Men's Valley” co-occurring with “Olympic participation”, a positive score can be given to actively present content such as game broadcasts at the Olympics.

  The case where the user's browsing history shown in FIG. 3 is used as input content has been described as an example, but other content can also be used as input. For example, as shown in FIG. 12, when using a set of video contents such as a currently broadcast program, a user-recorded program, or a video of interest to the user published on the Internet, program information described in the EPG In addition, keywords are extracted from text information such as subtitle information, titles and tags attached to moving images, and similarly, a plurality of action labels are assigned in step 202 of FIG.

  Next, giving notification trigger conditions when viewing video content will be described.

  An example in which the notification trigger condition is given in step 203 in FIG. 2 is shown at 610 in FIG. In consideration of whether or not video content can be viewed to the end in the current situation, the playback time of each content is added to the notification trigger condition. For this reason, for example, presentation of video content for 10 minutes 5 minutes before arrival at the destination by train is suppressed. Therefore, in addition to the conditions, it is necessary to grasp the playback time of the video.

  A specific example will be described below.

  FIG. 14 shows an example in which real-time situation information is acquired and a user's current situation is estimated. For example, as the situation where the user is currently located, the date and time 6/28 (Sat) 10:10, the current location Kawasaki Station, the moving situation Waiting for the train, the expected destination Tachikawa, the next schedule 13:00 and meeting with friends (Tachikawa), etc. It is.

  An example of determining the presentation timing from the notification trigger condition and the situation information is shown in FIG. In this example, the presentability is calculated in consideration of the current situation of the user and the playback time of the video, and the presentation timing is determined. For example, if you go from Kawasaki Station to Tachikawa Station and the arrival time is about noon, it will be determined that the Tachikawa Shokudo reservation is the most likely. Next, in order to kill time in travel time, it may be desired to browse something, so it is determined that there is a high possibility of playing a video called Comedy LIVE. Then, in the situation 702 as shown in FIG. 1, it is determined that the action of “reserving” “Tachikawa Shokudo” is most likely to be performed, and it is determined in step 206 that the notification trigger condition is met. The presentation of content will be described.

Since it matches the notification trigger condition, a video of “Tachikawa Town Information”, which is a content invoking the action of “reserving”, is presented as shown in FIG. 16, and at the same time, referring to the facility information database, for example, Store information such as a map and a coupon is presented as 813.
[Second Embodiment]
FIG. 17 shows a second embodiment of the present invention.

  In FIG. 17, in this embodiment, the notification trigger condition assigning server 101 and the information presentation client 102 are divided. As the information presentation client 102, for example, a device equipped with a communication function such as a personal digital assistant (PDA) or a smartphone (Smartphone) can be used. The notification trigger condition assignment server 101 includes a content storage unit 110, an action ontology storage unit 120, an action label assignment unit 130, an action-specific score calculation unit 140, a notification trigger condition assignment unit 150, an antenna 13, and a communication process. Unit 14 and data transmission / reception unit 103. A notification trigger condition storage unit 160, a situation information acquisition unit 170, a presentation timing determination unit 180, a data transmission / reception unit 104, a display 11, an operation unit 12, a sensor on a terminal 102 connected to the server via a network A configuration in which the processing unit 15 and the status sensor 16 are provided and content is received from the server when the notification condition is satisfied is also conceivable.

    In this embodiment, the user connects to the notification trigger condition assignment server 101 through the network using the information presentation client 102. The information presentation client 102 grasps the current situation of the user, and transfers the current situation of the user and the next information of the notification trigger condition to the notification trigger condition granting server 101. Using this information, the notification trigger condition assigning server 101 searches for information from the content storage unit 110 and assigns an action label based on the calculated action-specific score. And the notification trigger condition provision part 101 transmits the executable action to which the action label was provided to the information presentation client 102. The information presentation client 102 uses the action that can be executed to determine the presentation timing by the presentation timing determination unit 180 and presents it on the display 11.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

The functional block diagram which shows the information presentation apparatus which concerns on 1st Embodiment. The figure for demonstrating the whole processing flow in the structure of the information presentation apparatus shown in FIG. The figure which shows the example of the browsing history of 1st Embodiment. The figure which shows action label provision with respect to the keyword which concerns on 1st Embodiment. The figure which shows the example which calculates the score which concerns on 1st Embodiment. The figure which shows an example of the element added with the notification trigger condition which concerns on 1st Embodiment. The figure which shows an example of the real-time status information which concerns on 1st Embodiment. The figure which shows an example which determines presentation timing from the notification trigger condition and status information which concern on 1st Embodiment. The figure which shows an example which shows the content which adapts the notification trigger condition which concerns on 1st Embodiment. The figure which shows the keyword ontology which concerns on 1st Embodiment. The figure which shows the example of positive and negative score calculation of the news which concerns on 1st Embodiment. The figure which shows the video content browsed which concerns on 1st Embodiment. The figure which shows an example which provides the notification trigger condition which concerns on 1st Embodiment. The figure which shows an example of the real-time status information which concerns on 1st Embodiment. The figure which shows an example which determines presentation timing from the notification trigger condition and status information which concern on 1st Embodiment. The figure which shows an example which shows the content which adapts the notification trigger condition which concerns on 1st Embodiment. The functional block diagram which shows the information presentation apparatus which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Information presentation apparatus 11 Display 12 Operation part 13 Antenna 14 Communication processing part 15 Status sensor 16 Sensor processing part 110 Content storage part 120 Action ontology storage part 130 Action label provision part 140 Action-specific score calculation part 150 Notification trigger condition provision part 160 Notification Trigger condition storage unit 170 Situation estimation unit 180 Presentation timing determination unit 190 Schedule storage unit

Claims (5)

An information presentation device for presenting information to a user,
A content storage unit for storing content information;
A schedule storage for storing user schedules,
An acquisition unit that acquires the situation information of the user and the surroundings of the device;
An estimation unit that estimates a user's current situation using the user's schedule information and the situation information;
An action information storage unit that stores an action label of actions that a user can take with respect to a keyword included in the content and a frequency at which the action is taken;
An action label giving unit for giving the action label to the keyword;
A calculation unit that calculates a score of the behavior label based on a behavior ontology;
A notification trigger condition storage unit for storing a notification trigger condition that is a condition for notifying a user;
A notification trigger condition giving unit for giving the notification trigger condition to an action label including the calculated score;
A presentation timing determination unit that determines the presentation timing of the content information that is the basis of the keyword from the estimated current situation of the user and the notification trigger condition;
An information presentation apparatus comprising: a display unit that displays the determined content information to a user at a presentation timing.
An information presentation device for presenting information to a user,
An acquisition unit for acquiring status information around the device;
An estimation unit that estimates a user's current situation using the user's schedule information and the situation information;
A transmission / reception unit for transmitting / receiving a notification trigger condition, which is a condition for notifying the user of the content information presented to the user from the outside and the action label of the action that the user can take for the keyword included in the content;
A presentation timing determination unit that determines the presentation timing of the content information that is the basis of the keyword from the estimated current situation of the user and the notification trigger condition;
An information presentation apparatus comprising: a display unit that displays the content information whose presentation timing is determined to a user.
In the calculation unit, the reputation information in the content information is used for calculating the score of the action label by using a sensitivity expression ontology that expresses the sensitivity expression for the content attribute and the degree of affirmation or denial in a hierarchical graph structure. The information presenting apparatus according to claim 1, wherein:
The information presentation apparatus according to claim 1, wherein the calculation unit uses current positive / negative information of the content for score calculation of the action label.
An information presentation method for presenting content information to a user,
The acquisition unit acquires status information around the device,
The schedule storage unit stores the user schedule,
The estimation unit estimates the user's current situation using the user's schedule information and the situation information,
The behavior information storage unit stores a behavior label of a behavior that a user can take with respect to a keyword included in the content and a frequency at which the behavior is taken,
An action label assigning unit, assigning the action label to the keyword,
The calculation unit calculates the score of the action label based on the action ontology,
The notification trigger condition storage unit stores a notification trigger condition that is a condition for notifying the user,
A notification trigger condition giving unit gives the notification trigger condition to the action label including the calculated score;
The presentation timing determination unit determines the presentation timing of the content information that is the source of the keyword from the estimated current situation of the user and the notification trigger condition,
An information presentation method, wherein the display unit displays the determined content information to a user at a presentation timing.

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