WO2008026302A1 - Dispositif d'affichage de contenus et procédé d'affichage de contenus - Google Patents

Dispositif d'affichage de contenus et procédé d'affichage de contenus Download PDF

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Publication number
WO2008026302A1
WO2008026302A1 PCT/JP2007/000369 JP2007000369W WO2008026302A1 WO 2008026302 A1 WO2008026302 A1 WO 2008026302A1 JP 2007000369 W JP2007000369 W JP 2007000369W WO 2008026302 A1 WO2008026302 A1 WO 2008026302A1
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WIPO (PCT)
Prior art keywords
content
user
virtual space
feature
main
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PCT/JP2007/000369
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English (en)
Japanese (ja)
Inventor
Masayuki Chatani
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Sony Computer Entertainment Inc.
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Application filed by Sony Computer Entertainment Inc. filed Critical Sony Computer Entertainment Inc.
Publication of WO2008026302A1 publication Critical patent/WO2008026302A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/904—Browsing; Visualisation therefor

Definitions

  • the present invention relates to an apparatus and method for displaying content in a virtual space.
  • the Internet has an enormous amount of digital content that can be searched from anywhere using the WWW (World Wide Web) mechanism. With the widespread use of broadband networks, many large-capacity contents such as music and video are being used. As an entrance to access such a vast amount of digital content, a search site that searches a web site by entering a keyword, a portal site with a link collection that classifies the web site for each category, etc. There is.
  • WWW World Wide Web
  • Recent search engines have been devised to improve user convenience. For example, there is a mechanism that displays related advertisements linked to the search keyword.
  • advertisement providers can target advertisements to users who have entered specific search keywords. .
  • the search engine can instantly display a list of web sites hit by keyword matching from a huge number of web sites.
  • the user has to browse and browse the listed websites one after another until he or she reaches the desired content.
  • Searching with keywords is often effective, but for content other than text, such as music, video, and photos, it is difficult to find the desired content by keyword search.
  • the present invention has been made in view of these problems, and an object thereof is to provide a content display device and a content display device method capable of effectively presenting content to a user.
  • a content display device provides a plurality of main contents to be browsed in a feature space having a feature amount characterizing content as a coordinate axis.
  • a feature space setting unit arranged at a fixed coordinate position; a virtual space generating unit that arranges the main content in the virtual space by mapping main content arranged in the feature space to a point in the virtual space;
  • a display control unit for displaying the virtual space in which content is arranged on a display; an interface unit for providing a graphical user interface for allowing a user to search the virtual space displayed on the display; and
  • a history holding unit for holding a history of main content visited by searching the virtual space, and referring to the history
  • the attention content identifying unit that identifies the feature amount of the content of interest that the user is interested in based on the feature amount of the main content visited by the user, and the feature amount of the content of interest is used as a selection criterion.
  • a related content determination unit that selects, as related
  • the main content is text, photos, music, video, and the like, and may be displayed as a thumbnail image or the like in the virtual space.
  • the user selects a thumbnail image and performs a playback operation, music is played, a still image is displayed at full size, or a movie is played.
  • Sub-content is also text, photos, music, video, etc. Although it is good, it is not always presented in the virtual space like the main content, but can be dynamically inserted into the virtual space and presented according to the search behavior of the user.
  • FIG. 1 is a configuration diagram of a content display device according to an embodiment.
  • FIG. 2 is a diagram for explaining the data structure of main content to be browsed.
  • FIG. 3 is a diagram for explaining meta information of sub-contents displayed in association with the main content.
  • FIG. 4 (a) is a diagram for explaining a feature space in which main contents are arranged
  • FIG. 4 (b) is a diagram for explaining a feature space in which sub-contents are arranged.
  • FIG. 5 is a diagram for explaining how related content is displayed in association with content of interest.
  • FIG. 6 is a diagram showing a feature vector of main content obtained from a user's main content visit history.
  • FIG. 7 is a diagram for explaining how related content is specified and inserted based on a visit history of a user's main content.
  • [001 1] 1 0 Content display device, 1 2 Sub-content storage unit, 1 4 Sub-content acquisition unit, 1 6 Feature quantity acquisition unit, 1 8 Feature space setting unit, 2 2 Main content storage unit, 2 4 Main content Acquisition unit, 2 6 Feature quantity acquisition unit, 2 8 Feature space setting unit, 3 0 User profile holding unit, 3 2 Multivariate analysis unit, 3 4 Virtual space generation unit, 3 6 Virtual space display unit, 3 7 Interface unit, 3 8 Attention content identification unit, 3 9 History holding unit, 4 0 Related content determination unit, 5 0 Sub content processing unit 6 0 Main content processing section.
  • FIG. 1 is a configuration diagram of a content display device 10 according to the embodiment. This figure is a block diagram that focuses on functions, and these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.
  • the content display device 10 arranges content to be browsed in the virtual space, and presents other content related to the content that the user is interested in according to the search behavior in the virtual space of the user. .
  • the content display device 10 can provide guidance for a consortium related to the genre's music.
  • the artist's related products are dynamically inserted into the virtual space and presented to the user.
  • the content to be browsed in the virtual space is called “main content”
  • the content that is dynamically inserted into the virtual space in association with the content that the user is interested in is called “sub-content”.
  • the main content processing unit 60 and the sub-content processing unit 50 perform processing for arranging the main content and the sub-contents in the feature space according to their characteristics, respectively. First, the configuration and operation of the main content processing unit 60 will be described.
  • the main content storage unit 22 stores the main content.
  • the main content is text, music, photos, videos, and so on.
  • the main content storage unit 2 2 is shown inside the content display device 10, but the main content storage unit 22 is provided in a server connected to the content display device 10 via a network. May be.
  • the main content acquisition unit 24 stores the main content data from the main content storage unit 22 Read meta information associated with the main content overnight.
  • the meta information includes character string data and numerical data that explain the type and characteristics of the main content.
  • the main content acquisition unit 24 provides the main content data and meta information to the feature amount acquisition unit 26.
  • FIG. 2 is a diagram for explaining the data structure of the main content.
  • the main content includes main content data 1 5 0 and meta information 1 5 2.
  • Meta information 1 5 2 includes title, singer, performer, composer, songwriter, publisher, year of publication, genre, tempo, singer Or the nationality of the performer and keywords.
  • the feature quantity acquisition unit 26 extracts N feature quantities that characterize the main content from the data and meta information of the main content. For example, if the main content is music, information such as singer, genre, tempo, nationality, etc. is read out as feature quantities from the meta information shown in Fig. 2, and each feature quantity is digitized.
  • the feature quantity acquisition unit 26 expresses a plurality of digitized feature quantities as a vector and obtains a feature vector of the main content.
  • the genre and nationality included in the meta information is used as the music feature amount.
  • the genre is either classical, jazz or rock, and the nationality is one of Asia, Europe or America.
  • a music feature vector a 6-bit binary vector is prepared. If the genre is classical, the first bit is 1, the second bit is 1 for jazz, and the third bit is 1 for rock. To do. Bit 4 is set to 1 if the nationality of Sir Artis is Asian, bit 5 is set to 1 if it is Europe, and bit 6 is set to 1 if it is the United States.
  • jazz played by Americans can be represented by a feature vector of (0, 1, 0, 0, 0, 1).
  • the feature amount acquisition unit 26 may extract the feature amount from the main content data itself. For example, when the main content is an image, a color vector or a spatial frequency component of the image may be extracted as a feature quantity to obtain a feature vector. For example, each value of the R component, G component, and B component may be extracted as a feature quantity and used as a feature vector. As a result, the difference in image can be characterized by color.
  • the feature vector may be determined by extracting each value of the spatial frequency component from low frequency to high frequency as a feature quantity. As a result, it is possible to distinguish between an image with many high-frequency components and an image with many low-frequency components.
  • the feature vector may be determined using both the RGB component and the spatial frequency component. For example, an image of a blue sky is characterized by a feature vector with a large B component value and a large low frequency component value.
  • the feature vector of the main content may be obtained by combining the feature amount extracted from the main content data and the feature amount obtained from the meta information of the main content.
  • a luminance component may be extracted from image data
  • a keyword included in the title may be acquired from the meta information
  • a feature vector may be determined by combining the luminance component value and a binary vector corresponding to the keyword. .
  • a bright image that includes “summer” in the title can be identified by the feature vector.
  • the feature quantity acquisition unit 26 provides the feature space setting unit 28 with information on the N-dimensional feature vector of the main content thus obtained.
  • the feature space setting unit 28 sets an N-dimensional feature space with each of the N-dimensional feature values of the main content as coordinate axes, and places the main content in the N-dimensional feature space at the coordinate position indicated by the N-dimensional feature vector. To do.
  • the main content is represented as a point with N-dimensional coordinates in the N-dimensional feature space.
  • the feature space setting unit 28 refers to the user profile held in the user profile holding unit 30 to acquire the feature amount of the content that the user likes, and the content that the user likes is used as the origin of the feature space. As the main content You may arrange around. This can be easily realized by moving the origin of the feature space by subtracting the feature vector of the content that the user likes from the feature vector of the main content.
  • the user-preferred content As the origin, content that has a feature value closer to the feature value of the user-preferred content gathers near the origin, and content that has a feature value that deviates from the feature value of the user-preferred content Move away from the origin.
  • the user profile held in the user profile holding unit 30 may be updated according to the search history of main content in the user's virtual space. As a result, the feature amount of the content that the user likes is updated, and the arrangement of the main content in the feature space is also updated.
  • a plurality of main contents are arranged in the N-dimensional feature space by the feature space setting unit 28, and the main contents having similar features form a cluster like a “nebula” in the N-dimensional feature space. It becomes like this.
  • a space with a higher degree than 3D cannot be visualized, so even if content is placed in the N-dimensional feature space, it is not easy for the user to recognize a collection of content with similar features. Therefore, the content arranged in the N-dimensional feature space is mapped to a three-dimensional virtual space, and a collection of content with similar features is visualized.
  • the feature space with the user-preferred content as the origin is mapped to the position closer to the user's initial position. This allows users to search the virtual space starting from the content they are interested in.
  • the multivariate analysis unit 3 2 detects three principal components by performing multivariate analysis of the content distribution in the N-dimensional feature space, finds principal component vectors having the values of the three principal components, The information of the principal component vector is given to the virtual space generator 3 4.
  • the virtual space generation unit 3 4 obtains a principal component vector of each content arranged in the feature space, and uses the value of the principal component vector as a coordinate value of the three-dimensional virtual space, thereby Place the main content in the space.
  • the virtual space display unit 3 6 generates a three-dimensional virtual space viewed from the viewpoint of the character operated by the user in the virtual space and displays it on the display, and the main content arranged by the virtual space generation unit 3 4 Are displayed in the virtual space.
  • the interface unit 37 receives a command for moving the user character in the virtual space, and provides a graphical user interface (GUI) for allowing the user to search the virtual space displayed on the display. While searching the virtual space, the user can access the main content by browsing the thumbnail image of the main content placed in the virtual space and clicking the thumbnail image. For example, if the main content is music, the jacket of music CD is displayed as a thumbnail image, and you can play the music by clicking the jacket of the music CD you want to listen to.
  • GUI graphical user interface
  • the interface unit 37 holds the history of main content visited and accessed by the user in the virtual space in the history holding unit 39.
  • the content-of-interest specifying unit 3 8 refers to the content visit history of the user held in the history holding unit 39, and specifies the content that the user is paying attention to.
  • the sub-content processing unit 50 stores content of a different type from the main content.
  • the same processing as the main content processing unit 60 is performed as a target.
  • the sub-content acquisition unit 14 reads the sub-content from the sub-content storage unit 1 2
  • the feature amount acquisition unit 16 obtains the sub-content feature amount
  • the feature space setting unit 1 8 features the sub-content. Place in the feature space based on the vector.
  • the feature space setting unit 18 may refer to the user profile held in the user profile holding unit 30 and arrange sub-contents around the content that the user likes.
  • FIG. 3 is a diagram for explaining the data structure of sub-contents.
  • the sub-content includes sub-content data 2500 and meta-information 2522.
  • the secondary content is the advertisement
  • the meta information 2 5 2 includes the title of the advertisement, the advertisement provider, the type of product being advertised, the person appearing in the advertisement, the nationality of the character, and Includes key words.
  • the feature amount acquisition unit 16 of the sub-content processing unit 50 extracts a feature amount from the sub-content data and meta information to obtain a feature vector, and obtains a feature space.
  • the setting unit 18 places the sub-contents and the feature space.
  • FIG. 4 (a) is a diagram for explaining the feature space 100 0 where the main content is arranged.
  • This feature space 1 0 0 is an N-dimensional feature space defined by coordinate axes s 1 to s N, and main contents 1 0 1 to 1 0 5 are arranged in the N-dimensional feature space 1 0 0.
  • FIG. 4B is a diagram for explaining the feature space 2 0 0 in which sub-contents are arranged.
  • This feature space 2 0 0 is an N′-dimensional feature space defined by the coordinate axes 1 1 to 1 1 ⁇ 1 ′, and sub-contents 2 0 1 to 2 0 6 are arranged in the N′-dimensional feature space 2 0 0. ing.
  • main feature space 1 0 0
  • sub feature space 2 0 0
  • the two feature spaces 1 0 0 and 2 0 0 can be associated with each other by converting feature values between the main feature space 1 0 0 and the sub feature space 2 0 0 or by selecting a common feature value. Can do.
  • the main content 1 0 arranged in the main feature space 1 0 0 If 3 is the content of interest, the sub-contents 204 having the feature quantity closest to the feature quantity of the content of interest can be selected from the sub-feature space 2 0 0 and used as related content. Further, another sub-content 2 0 3 having a short distance in the sub-feature space 2 0 0 can be selected as the related content with respect to the sub-content 2 0 4 selected as the related content.
  • the content-of-interest specifying unit 3 8 force
  • the related content determination unit 4 0 uses the feature amount of the content of interest as a selection criterion to select the sub-feature space 2 At 0 0, the related content set 2 0 7 can be determined.
  • the related content determination unit 40 dynamically inserts the sub-contents belonging to the related content set 20 07 determined in this way into the virtual space so as to be displayed together with the main content.
  • Sub-contents belonging to the related content set 2 0 7 may be inserted into the virtual space sequentially or simultaneously, and the sub-content having the feature quantity closest to the feature quantity of the content of interest is selected from the related content set 2 0 7. Thus, it may be inserted into the virtual space.
  • FIG. 5 is a diagram for explaining how related content is displayed in association with content of interest.
  • the main contents 1 0 1 to 1 0 5 arranged in the main feature space 1 0 0 are mapped (the main contents after mapping are the codes 1 1 1 to 1 1 5 respectively. ).
  • the content-of-interest specifying unit 38 refers to the search history of the user and determines which of the main contents 1 1 1 1 to 1 15 in the virtual space 300 is focused on by the user. When the user is accessing the main content 1 1 3 indicated by diagonal lines or stopped for a while in front of the main content 1 1 3, etc.
  • the determination unit 40 determines that the main content 1 1 3 is the content of interest.
  • the related content determination unit 40 is a feature close to the feature amount of the main content 1 1 3 of interest (that is, the value of the feature vector of the main content 1 0 3 in the main feature space 1 0 0).
  • Sub-feature space with quantity 2 0 0 sub-content 2 0 4 and 2 0 3 is inserted as a related content near the main content 1 1 3 which is currently focused on by the user (reference numerals 2 1 4 and 2 1 3).
  • the related content determination unit 40 determines a coordinate value for positioning the related content 2 1 4 and 2 1 3 in the virtual space 3 0 0 in the vicinity of the main content 1 1 3, and the virtual space display unit 3 6 The coordinate values are given together with the thumbnail image data of the related contents 2 1 4 and 2 1 3.
  • FIG. 6 is a diagram showing a characteristic vector of main content obtained from a visit history of the main content of the user.
  • the attention content specifying unit 3 8 refers to the visit history, and as shown in the figure, the user has recently listened to the 10 music songs # 1 to # 1 0 which are characteristic vectors. Collect. At this time, the time when the user listens to each of the songs # 1 to # 10 is also acquired. Instead of listening time, the ratio of listening time to song length may be used.
  • the characteristic vectors are the music genre (represented by 3-bit information indicating either classical, jazz or rock) and the nationality of Sir Artis (Asian, European, American).
  • song # 1 is jazz performed by Asians, and the feature vector is (0, 1, 0, 1, 0, 0) It is.
  • Song # 2 is jazz performed by Ameri, and the feature vector is (0, 1, 0, 0, 0, 1).
  • the content-of-interest specifying unit 38 calculates a weighted average of feature vectors after weighting the feature vectors of these 10 songs in proportion to the listening time. When adding the feature vector of song 0, add the weights so that the longer the listening time is, the higher the rating is, and divide the result by 10 songs. This makes it possible to calculate the weighted average of 10 feature vectors with more emphasis on the feature vectors of songs that the user prefers.
  • the content-of-interest specifying unit 38 specifies the content having the average feature vector thus calculated as the content of interest. It does not matter whether or not such content of interest is actually in the main feature space 100. This is because content with an average feature vector can be treated as virtually existing. is there.
  • the content-of-interest specifying unit 3 8 may calculate the weighted average of the characteristic vectors of the main content visited in the past by performing weighting so that the time when the content is visited is closer to the current time. .
  • FIG. 7 is a diagram illustrating a state in which related content is specified and inserted based on a visit history of a user's main content.
  • the route denoted by reference numeral 3 1 0 is a route on which the user searches the virtual space 3 0 0.
  • the user visits the three jazz contents 1 3 5, 1 3 4, and 1 3 3 in the space area 30 2 where jazz contents 1 3 1 to 1 3 5 are gathered.
  • the attention content specifying unit 3 8 is configured so that the user first visits the jazz space area 30 2, and then moves to the Japanese music space area 30 1, so that the user can play jazz performed by the Japanese. And identify the featured content that will be featured in “Jazz Performed by Japanese”.
  • the related content determination unit 40 selects the content 2 2 1 related to “Japanese performing jazz” and inserts it near the current search position of the user.
  • the virtual space display unit 36 displays the inserted related content 2 2 1 in the virtual space.
  • the related content determination unit 40 selects sub-contents close to the main content of the main feature space 100 in the sub-feature space 200. If the feature amounts defined in the main content and sub-content are the same, the main content and sub-content can be placed in the same feature space. Since the related content determination unit 40 can select sub-contents within a predetermined distance from the main content within the same feature space, selection of related content is facilitated.
  • the main content and the sub-content can be arranged in the same feature space created by the keyword.
  • the main content is music and the sub-content is advertisements, music singers and performers and actors appearing in advertisements are registered as “contents”. If it is expressed by the feature quantity “identification number indicating the person to play”, music and advertisement can be characterized by the same feature quantity.
  • the feature space in which the main content is arranged and the sub-content are arranged.
  • the feature space is divided and the user is presented with a virtual space that maps the feature space where the main content is placed. Then, when the user is paying attention to the main content in the virtual space, the user can dynamically insert the sub content close to the main content of interest in the feature space as related content in the virtual space. To present.
  • the secondary content is an advertisement related to the main content of interest
  • the main content and the secondary content are always displayed in the virtual space
  • the user can constantly show the advertisement.
  • advertisements are displayed in conjunction with the main content of interest, it is easy for users to accept.
  • the primary content is music and the secondary content is a product such as Artisan Power Render or the ticket information of a consul user
  • the user can purchase a product related to a particular music of interest. Will be given the opportunity to purchase.
  • the main content and the sub-content will be placed in different feature spaces.
  • the amount or linking between different feature amounts it is possible to identify sub-contents with features close to the features of the main content of interest, so there is no problem.
  • the content display device 10 of the present embodiment when the user performs "content cruise" for browsing the main content arranged in the virtual space, the user's Depending on the search behavior, related content such as advertisements is dynamically inserted into the virtual space and presented.
  • Related content is close to the characteristics of the content that the user is interested in according to the search history of the user's main content. Things are automatically selected. Users can freely explore the virtual space and have an opportunity to meet various contents, which expands the enjoyment of the users.
  • related content is dynamically presented according to the user's search behavior, and the displayed related content varies depending on how the search proceeds, so it is possible to give the user surprise and surprise. Will not be lost.
  • the arrangement of the main content in the virtual space is updated to the user's preference by updating the user profile.
  • different related content is presented according to the search behavior.
  • the content can be presented to the user more effectively and the user's interest can be attracted.
  • the virtual space generation unit 34 maps the content arranged in the feature space to the three-dimensional virtual space, but the content in the feature space may be mapped to a plane. .
  • content is placed on a flat surface, there is no spatial spread, so there is a considerable restriction on the degree of freedom when mapping content groups that have similar features in the feature space to form a collection.
  • the content is displayed in a flat plane on the screen, so that an overall picture of the content distribution is obtained. There is an advantage of shaking hands.
  • the virtual space generation unit 34 may map the content arranged in the feature space into a four-dimensional virtual space including a time axis in addition to the space axis.
  • the virtual space can be changed according to time, not static.
  • the type of content placed in the virtual space varies.For example, if the search time is in the morning, content of quiet music suitable for the morning is placed, or the search time is in the evening If so, you may place content related to dinner.
  • the virtual space display unit 36 may display the three-dimensional space to change as time passes.
  • the interface unit 37 7 provides a user interface that allows the user to change the time by performing an operation to move the time axis direction back and forth, and the virtual space display unit 36 has a three-dimensional space at the time set by the user. May be configured to display.
  • the thumbnail image of the sub-content is dynamically inserted into the virtual space and displayed.
  • the sub-content is music or sound, it is not displayed in the virtual space. You may only play audio.
  • the audio advertisement may not be displayed in the virtual space, but only the advertisement content may be output by voice.
  • the present invention can be applied to a technique for displaying content in a virtual space.

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Abstract

Une unité de configuration d'espace caractéristique (28) dispose une pluralité de contenus de sujets de navigation principaux à des positions de coordonnées déterminées selon leurs quantités caractéristiques dans un espace caractéristique où un contenu qui caractérise une quantité caractéristique est considéré comme étant un axe des coordonnées. Une unité de génération d'espace virtuel (34) exécute le mappage des contenus principaux disposés dans l'espace caractéristique à des points dans un espace virtuel et dispose les contenus principaux dans l'espace virtuel. Une unité de spécification de contenus notables (38) spécifie les quantités caractéristiques de contenus notables auxquels un utilisateur prête une attention particulière sur la base des quantités caractéristiques des contenus principaux recherchés et consultés par l'utilisateur dans l'espace virtuel. Une unité de détermination de contenus associés (40) utilise les quantités caractéristiques des contenus notables comme normes de sélection et sélectionne des contenus auxiliaires qui sont différents des contenus principaux comme contenus associés. Une unité d'affichage d'espace virtuel (36) fait en sorte que les contenus associés soient affichés à des emplacements de l'espace virtuel où l'utilisateur effectue une recherche.
PCT/JP2007/000369 2006-08-28 2007-04-05 Dispositif d'affichage de contenus et procédé d'affichage de contenus WO2008026302A1 (fr)

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JP2006231076A JP2008052665A (ja) 2006-08-28 2006-08-28 コンテンツ表示装置およびコンテンツ表示方法
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