JP6295577B2 - Server apparatus, program, and information providing method - Google Patents

Description

  The present invention relates to a server device that provides information to a communication terminal device, a program thereof, and an information providing method.

  In recent years, with the development of networks such as the Internet and communication terminal devices such as personal computers, articles such as books, news, etc., and advertisements of goods or services (hereinafter collectively referred to as “contents”) are transmitted to the network or the network. Electronic browsing through recording media has become common. Recently, electronic books are often browsed through portable portable communication terminal devices such as portable game devices having a communication function, tablet portable terminal devices, and portable telephones.

  Under such circumstances, a service that provides a user's evaluation of the content or article by a user who has already purchased digital content such as an electronic book or article using a network is generally performed. For example, as these techniques, a technique for presenting book information such as a user's comment to introduce the electronic book at the time of selling the electronic book (for example, Patent Document 1), or a comment or impression on the content by other users A technique (for example, Patent Document 2) that is evaluated and provides a highly evaluated comment or comment is known.

JP 2002-269372 A JP 2004-348511 A

  However, in the system using the technology disclosed in Patent Document 1 or 2 above, whether the user who provides information such as comments has actually finished reading the electronic book, If it is not possible to prove that the information is based on the use or use of the goods and the malicious user provides the information, it will not be useful information but will also be content by false information Or purchasing goods, it may be disadvantageous for users who receive information.

  In addition, in the system using the technology disclosed in Patent Document 1 or 2, consideration is not given to the values of users who desire information such as comments and the users who provide the information. Depending on the difference in values, it may not be useful information.

  The present invention has been made to solve the above-described problems, and its purpose is to a user who desires to purchase, view, or use an object such as digital content or an article represented by an electronic book. Another object of the present invention is to provide a server device or the like that can reliably provide useful information in advance.

  (1) In order to solve the above-described problem, the server device of the present invention is an information providing server device that is connected to a communication terminal device via a network and provides comment information on an object to be used by a user. In conjunction with the communication terminal device, the user collects specific information for identifying an experienced object that has been used by the user, and for each user, based on the collected information, History information registration means for registering history information indicating the history of the object that has been used in the history information database, and in conjunction with the communication terminal device, based on the user's instructions, user comments on the object Comment registration means for registering in the comment database as comment information, and from a specific user via the communication terminal device When the request for obtaining the comment information related to the specific object in the user is received, the history information of the specific user is compared with the history information of the other user, and the similarities between the other user and the specific user are compared. A degree-of-similarity calculating means; and a providing means for providing comment information regarding the specific object in the other user to the desired user based on the calculated degree of similarity. ing.

  With this configuration, the server device of the present invention can collect history information indicating a user's past usage experience, and other users who wish to obtain comment information based on the collected history information and other users Since the similarity indicating the similarity with the user can be calculated, it is possible to eliminate the provision of the comment information of the user who does not have use experience with the corresponding object, and the experienced object itself or Based on historical information about experienced objects in which the user's values appear, such as information registered on the objects used, the user's comment information of other users who share the same values is provided to the desired user with priority. Can do.

  That is, the server device of the present invention is another user who has already used the target object from among the comment information registered for the target object, and has the same values as the specific user. Since the comment information of the user can be provided to the specific user, useful information can be surely provided to the specific user before purchasing, browsing, or using the object.

  (2) Moreover, the server apparatus of this invention has the structure by which the said log | history information registration means registers into the log | history information database the attribute information which shows the attribute of the said experienced target object as said log | history information.

  With this configuration, the server device according to the present invention has common values based on, for example, the category (genre) of the electronic book that is one of the indexes of the user's values, or the presence or absence of matching of attributes such as authors. The comment information of other users can be preferentially provided to the desired user.

  (3) Further, in the server device according to the present invention, the similarity calculation unit may determine whether the specific object is registered as the experienced object between the desired user and the other user, and the specific object. The degree of similarity between the specific user and the other user is calculated based on at least one of the number of experienced objects of the desired user and the other user in the object having the same attribute as the object of It has the composition to do.

  With this configuration, the server device of the present invention can exclude users who have not used the target object, such as users who have not read the electronic book, from similar users, and can also be used as an index of the user's values. Based on the presence or absence of matching of attributes such as category (genre) or author, it is possible to preferentially provide comment information of other users with common values to the desired user. It is possible to reliably provide useful information to a specific user who wishes to view or use the object before purchasing, viewing or using the object.

  (4) Moreover, the server apparatus of this invention has the structure which the said log | history information registration means registers into the log | history information database the said input information at the time of use of the said user's target object as said log | history information.

  With this configuration, the server device of the present invention gives priority to comment information of other users who share common values based on input information such as a memo when using an object in which the user's values appear. It can be provided to a desired user.

  (5) Moreover, the server device of the present invention is configured such that when the history information registration unit detects that the communication terminal device uses a target object or a condition relating to the use of the target object, the detected target object It has a configuration in which it is registered in the history information as an experienced object.

  With this configuration, for example, when the specific target object is an electronic book, the server apparatus according to the present invention provides comment information of an unused user of the target object such as an unread user for the electronic book to a desired user. Can be excluded from.

  Therefore, the server device of the present invention can reliably provide comment information of a user who has used the object, so that the object can be purchased for a specific user who wants to purchase, view or use the object. Useful information can be provided prior to purchase, viewing or use.

  (6) In the server device according to the present invention, when the similarity calculation unit does not include the specific object in the experienced object of the other user, the server and the specific user The calculation of the similarity with the user is stopped.

  With this configuration, the server device of the present invention excludes other users who have no experience of using a specific object from the target of similarity calculation, and as a result, comments from users who have no experience of using a specific object. Information can be excluded from comment information provided to the desired user.

  (7) Further, the server device of the present invention has a configuration in which the similarity calculation unit calculates the similarity based on history information when the comment information is registered.

  With this configuration, the server device of the present invention can use history information that accurately reflects the usage experience of each user that changes from moment to moment, and as a result, can accurately calculate the degree of similarity.

  (8) Moreover, the server apparatus of this invention has the structure which the said target object is an electronic book, and the said log | history information registration means registers the information regarding the read electronic book in the said log | history information database. .

  With this configuration, the server device of the present invention can acquire comment information related to an electronic book when a specific user desires to acquire the electronic book.

  (9) In order to solve the above-described problem, the program of the present invention is an information providing server device that is connected to a communication terminal device via a network and provides comment information for an object to be used by a user. In conjunction with the terminal device, the user collects information on the experienced object that has been used by the user, and for each user, specific information for identifying the experienced object based on the collected information, and History information registration means for registering in the history information database history information indicating the history of the object that each user has used in the past, including at least attribute information indicating the attribute of the experienced object, and linked to the communication terminal device Then, based on the user's instruction, the user's comment on the object is commented as the comment information. When a request for acquiring the comment information related to a specific object in another user is received from a specific user via the comment registration means to be registered in the database and the communication terminal device, the history information of the specific user and the other Similarity calculation means for calculating the similarity between the other user having history information satisfying a predetermined condition and the specific user by comparing the history information of the user, and the calculated similarity And providing means for providing comment information regarding the specific object in the other user to the desired user.

  With this configuration, the program of the present invention can collect history information indicating a user's past use experience, and a specific user who wants to obtain comment information based on the collected history information and other users It is possible to calculate the similarity indicating the similarity to the user, so that it is possible to eliminate the provision of comment information of the user who does not have experience using the target object, and the target object already used or used Based on the history information on the experienced object in which the user's values appear, such as information registered on the target object, the comment information of other users who share the same value can be preferentially provided to the desired user it can.

  That is, the program of the present invention is another user who has already used the target object from among the comment information registered for the target object, and has other values common to the specific user. Since the user's comment information can be provided to the specific user, it is possible to reliably provide useful information to the specific user before purchasing, browsing or using the object.

  (10) In order to solve the above-described problem, the information providing method according to the present invention collects identification information for identifying an experienced object that has been used by the user in conjunction with the communication terminal device, For each user, based on the collected information, a history information registration step of registering history information indicating a history of the target object that each user has used in the past in a history information database, and in conjunction with the communication terminal device A comment registration step of registering a user's comment on the object in the comment database as the comment information based on the user's instruction, and a specific target from a specific user to another user via the communication terminal device When receiving the comment information acquisition request for an object, the history information of the specific user and the history information of the other user are received. A similarity calculation step for calculating the similarity between the other user and the specific user, and comment information regarding the specific object in the other user based on the calculated similarity And a providing step of providing to the desired user.

  With this configuration, the information providing method of the present invention can collect history information indicating a user's past experience of use, and can also acquire a specific user who wants to acquire comment information based on the collected history information and others. It is possible to calculate the degree of similarity indicating the similarity with the user of the user, so that it is possible to eliminate the provision of comment information of the user who does not have experience using the target object, and the target object already experienced Or, based on historical information about an experienced object in which the user's values appear, such as information registered about the object used, other users who share the same value are provided with priority to the desired user. be able to.

  That is, the information providing method of the present invention is another user who has already used the object from the comment information registered for the corresponding object, and has the same values as the specific user. Since comment information of other users can be provided to the specific user, it is possible to reliably provide useful information to the specific user before purchasing, browsing or using the object.

  In the present invention, the comment information of other users who are already using the object from among the registered comment information and have the same values as the specific user is used as the specific user. Therefore, it is possible to reliably provide useful information to a specific user before purchasing, browsing or using the object.

1 is a system configuration diagram showing a configuration of a communication system in an embodiment of the present invention. It is a conceptual diagram which shows the operation | movement outline | summary of the communication system in one Embodiment. It is a block diagram which shows the structure of the information provision server apparatus in one Embodiment. It is a figure which shows an example of the data recorded on the user management database in the information provision server apparatus in one Embodiment. It is a figure which shows an example of the data recorded on the electronic book database in the information provision server apparatus in one Embodiment. It is a figure which shows an example of the data recorded on the historical information database in the information provision server apparatus in one Embodiment. It is a figure which shows an example of the data recorded on the comment information database in the information provision server apparatus in one Embodiment. FIG. 6 is a diagram (part 1) for explaining the calculation of the similarity between each comment user and a desired user in the data processing unit of the present embodiment. FIG. 6 is a diagram (part 2) for explaining the calculation of the similarity between each comment user and the desired user in the data processing unit of the present embodiment. It is a flowchart which shows the operation | movement of the comment information provision process performed in the communication system of one Embodiment. It is the figure for demonstrating calculation of the similarity degree with the desired user of each comment user in the data processing part of a modification (the 1). FIG. 12 is a diagram (part 2) for explaining the calculation of the similarity between each comment user and the desired user in the data processing unit of the modified example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the following embodiments, a server device, a program, and information provision according to the present invention are provided for a communication system having a communication terminal device and an information providing server device connected to the communication terminal device via a network. It is embodiment at the time of applying a method.

  In the following embodiments, an electronic book that is digital content is used as the “object” of the present invention, and “reading experience” is used as the “use experience”.

[1] Communication System First, the configuration and outline of the communication system 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a system configuration diagram showing a configuration of the communication system 1 in the present embodiment, and FIG. 2 is a conceptual diagram showing an operation outline of the communication system 1 in the present embodiment. Further, in order to prevent the figure from becoming complicated, only some users are shown in FIGS. 1 and 2. That is, in the actual communication system 1, there are a larger number of users and communication terminal devices 10 than displayed.

  The communication system 1 of the present embodiment is a system that works in conjunction with a communication terminal device 10 and distributes electronic book data (hereinafter referred to as “electronic book data”) that is digital content to the communication terminal device 10. When distributing the electronic book data, the system provides comment information in which other users' evaluations or impressions of the electronic book are written according to the user's wishes.

  In the present embodiment, each user is described as being registered as a member in a network service that distributes electronic books (hereinafter referred to as “electronic book distribution service”).

  In order to realize such a function, the communication system 1 according to the present embodiment provides a plurality of communication terminal devices 10 possessed by each user, a network 20, and an electronic book distribution service, as shown in FIG. However, it has the information provision server apparatus 30 which delivers applicable comment information to the communication terminal device 10. FIG.

  Each communication terminal apparatus 10 is connected to the network 20 via the base station BS. The network 20 is configured by interconnecting a public telephone network including a mobile telephone network and an IP (Internet Protocol) network, for example. However, the configuration of the network 20 is not limited to this.

  The communication terminal device 10 has a function of an electronic book reader. For example, the communication terminal device is portable by a user such as a portable music player, a portable game machine, a tablet information terminal device, a smartphone, or a portable telephone. It is.

  In particular, the communication terminal apparatus 10 receives resource data for the WWW system described in a markup language such as XML (extensible Markup Language) and a unique URL (Uniform Resource Locator) indicating a network address of the resource data. While using, it has a browsing function for performing data communication with the information providing server device 30.

  Moreover, the communication terminal device 10 receives the resource data from the information providing server device 30 using the browsing function, and displays the content configured by the resource data so that the user can browse.

  Then, as shown in (1) and (2) of FIG. 2, the communication terminal device 10 is connected to the information providing server device 30 via the base station BS and the network 20 and is electronically operated based on a user operation. The book distribution service is logged in, and as the logged-in user (hereinafter referred to as “logged-in user”), various data can be exchanged from the information providing server device 30 to be provided with the electronic book distribution service. Has been.

  Further, the communication terminal device 10 has a function of displaying an electronic book (specifically, electronic book data) distributed using an application functioning as an electronic book reader (hereinafter referred to as “reader application”). In addition, as shown in (3) of FIG. 2, when the last page of the electronic book being read is displayed, information indicating that the electronic book has been read (hereinafter, “read notification information”). Or “specific information for specifying an e-book that has been read (experienced object)” is provided to the information providing server device 30.

  On the other hand, as shown in FIG. 2 (4), the communication terminal device 10 registers, as comment information, an evaluation or impression regarding the electronic book desired by the user in the information providing server device 30 when logging in to the electronic book distribution service. (I.e. upload) configuration.

  Then, as shown in FIGS. 2 (5) and 2 (6), the communication terminal device 10, while logging in to the electronic book distribution service, has a predetermined timing before requesting distribution of desired electronic book data by purchase or the like. In addition, in order to determine whether or not the electronic book corresponds to the request, the user receives the comment information registered by another user and displays the comment information so that the user can view it. It has a function.

  The information providing server device 30 is a system used for providing an electronic book distribution service, and has various databases (hereinafter also referred to as “DB”) in order to provide the electronic book distribution service. Then, the information providing server device 30 mainly executes various processes for distributing electronic book data desired by the user and various processes for providing comment information using the communication terminal device 10.

In particular, the information providing server device 30
(1) In conjunction with the communication terminal device 10, collects a reading experience for an electronic book that has already been distributed (that is, the above-described read notification information), and for each user, based on information indicating the collected reading experience, Register history information indicating the history of electronic books read by each user, create a database,
(2) In conjunction with the communication terminal device 10, based on the user's instruction, the user's comment on each electronic book is registered as comment information and databased,
(3) Before distributing specific electronic book data, in order to determine whether or not the electronic book matches the request, a user who wants to obtain comment information using the database history information (hereinafter, "Sometimes referred to as" desired user (specific user) ") and other users, based on the read experience,
(4) providing comment information of other users to the desired user based on the calculated similarity;
It has a configuration.

  That is, the information providing server device 30 reliably calculates a specific electronic book by calculating the degree of similarity between the desired user and other users based on the history information indicating the read experience of each user collected and registered. Other users who have already read experience are identified, and the similarity between other users who share common values and desired users is determined.

  Then, the information providing server device 30 assumes that comment information of another user with high similarity (hereinafter also referred to as “similar user”) is useful information for a desired user in a specific electronic book. The comment information of similar users is provided to the desired user with priority over the comment information of other users.

  By having such a configuration, the communication system 1 according to the present embodiment can collect history information indicating a user's previous reading experience with respect to an electronic book, and comment information based on the collected history information. Since it is possible to calculate the similarity indicating the similarity between the desired user who wants to acquire the user and other users, provision of comment information of a user who does not have the read experience for the corresponding electronic book is excluded. In addition, based on the history information indicating the already read experience, the comment information of other users who share the same values can be preferentially provided to the desired user.

  That is, the communication system 1 according to the present embodiment includes other users who have already been read about the target electronic book from the registered comment information and have the same values as the desired user. Since comment information can be provided to the desired user, it is possible to reliably provide useful information to a specific user before purchasing, browsing or using the object.

[2] Information Providing Server Device [2.1] Configuration Next, the configuration of the information providing server device 30 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the information providing server device 30 of this embodiment.

  As shown in FIG. 3, the information providing server device 30 according to the present embodiment includes a communication control unit 310 connected to the network 20, a ROM / RAM 320 that functions as various memories, and various databases (hereinafter “DB”). A management apparatus 340 for controlling the entire apparatus, distribution of electronic book data, collection of electronic book history information, registration of comment information, and data provided by the comment information And a processing unit 350.

  The above-described units are connected to each other by a bus B, and data transfer is performed between the components.

  The communication control unit 310 is a predetermined network interface, establishes a communication channel with the communication terminal device 10, and exchanges various data.

  Various programs necessary for driving the information providing server device 30 are recorded in the ROM / RAM 320. The ROM / RAM 320 is used as a work area when various processes are executed.

  The recording device 330 is configured by an HDD or an SSD (Solid State Drive). The recording device 330 includes a user management DB 331 that stores information necessary for the user to receive the provision of an electronic book distribution service, an electronic book DB 332 that stores electronic book data to be distributed, and each user's read information. A history information DB 333 that stores history information in which information related to the electronic book is listed, and a comment information DB 334 that stores comment information registered for each user.

  Note that the history information DB 333 of this embodiment constitutes a history information database of the present invention, and the comment information DB 334 constitutes a comment information database of the present invention. Details of the recording apparatus 330 of this embodiment will be described later.

  The management control unit 340 is mainly configured by a central processing unit (CPU), and integrally controls each unit of the information providing server device 30 by executing a program.

  When the data processing unit 350 acquires a login request based on a user's instruction from the communication terminal device 10 in conjunction with the recording device 330 under the control of the management control unit 340, the data processing unit 350 receives the electronic book of each user based on the request. Execute login processing to the distribution service.

In particular, the data processing unit 350
(1) In conjunction with the communication terminal device 10, information about an electronic book that has been read by the user (that is, an experienced object that has been used) (specifically, that the last page of the electronic book data has been displayed) Collected notification information)
(2) For each user, based on the collected information, specific information (specifically, the title and electronic book ID of the electronic book) for specifying the electronic book that has been read and the attributes of the electronic book Each user including at least attribute information (specifically, a category name and category ID when the electronic book is classified in a predetermined category, and an author name and author ID of the electronic book) In the history information DB 333, history information indicating the history of the electronic book that has already been read is registered.
(3) In conjunction with the communication terminal device 10, based on the user's instructions, register comments such as the user's evaluation or impression on the electronic book as comment information in the comment information DB 334,
(4) An electronic book (hereinafter referred to as “target electronic book”) designated by a desired user via the communication terminal device 10, and another user's request for obtaining comment information regarding the target electronic book (hereinafter referred to as “target electronic book”). (Referred to as “comment acquisition request”), the similarity between the desired user and other users is calculated by comparing the history information of the desired user with the history information of other users,
(5) Preferentially providing the desired user with comment information regarding a specific object in another user (that is, a similar user) having a high degree of similarity,
Perform various processes.

  Specifically, the data processing unit 350 performs a distribution process of electronic book data requested by a logged-in user (hereinafter referred to as “electronic book distribution process”), and a process of registering registered comment information (hereinafter referred to as “electronic book distribution process”). "Comment information registration processing") and processing for providing the comment information (hereinafter, "comment information provision processing") are executed.

  Then, when the user has finished reading the electronic book via the communication terminal device 10, the data processing unit 350 collects the information, that is, the read notification information, as the read electronic book as the read book. (Hereinafter referred to as “read notification information collection processing”). Details of the data processing unit 350 in this embodiment will be described later.

[2.2] Various DBs
Next, each DB of the present embodiment will be described with reference to FIGS. 4 to 7 are diagrams illustrating examples of data recorded in the user management DB 331, the electronic book DB 332, the history information DB 333, and the comment information DB 334 provided in the information providing server device 30, respectively.

The user management DB 331 of this embodiment is a database in which various types of information for managing each user registered for use in the electronic book distribution service is stored as data. For example, in the user management DB 331, as shown in FIG. 4, for each registered user, (1) a user ID and
(2) user information including various user attributes such as a user name;
(3) an electronic book ID for identifying an electronic book that has already been distributed;
(4) Information on the account (including credit card number) charged when purchasing an e-book;
Are registered (recorded) in association with each other.

  For example, in FIG. 4, “user101 profile” is recorded as user information corresponding to the user with the user ID “user101” in the user management DB 331, and the electronic book ID “DC001” and the already-read electronic book are recorded. It is indicated that credit information of “DC005” and “12345678” of “AAA” company is registered.

The electronic book DB 332 is a DB in which electronic book data provided to the user via the communication terminal device 10 is recorded. For example, in the electronic book DB 332, as shown in FIG. 5, for each electronic book, (1) an electronic book ID and
(2) the title of the electronic book;
(3) main data of the electronic book (image data, text data, and control data in the electronic book reader),
(4) Thumbnail image data such as a cover (hereinafter referred to as “thumbnail data”);
(5) Author name and author ID;
(6) Category name and category ID;
Are recorded in association with each other.

  For example, in FIG. 5, the electronic book DB 332 is associated with the electronic book ID “DC001”, the title of the electronic book “What is management”, the main body data of “BD001”, and the “sam001”. The thumbnail data, the author name and author ID of “X Miyuki: AT001”, and the category name and category ID of “Practical Document: CT001” are recorded. The electronic book ID, author ID, and category ID are assigned automatically by the information providing server device 30 when electronic book data is newly registered in the electronic book DB 332 or based on electronic book data already registered. It is supposed to be.

The history information DB 333 is a database in which information related to electronic books read by each user is listed and registered. In particular, in the history information DB, attribute information of the electronic book is recorded in addition to specific information (that is, an electronic book ID) for specifying the electronic book that has been read by each user. For example, in the history information DB 333, as shown in FIG.
(1) a user ID;
(2) Listed data of already read electronic books (hereinafter referred to as “read electronic book list”);
(3) the number of electronic books by category of electronic books listed in the read electronic book list as attribute information (hereinafter referred to as “number of categories”);
(4)) The number of electronic books by authors of electronic books listed in the already-read electronic book list as attribute information (hereinafter referred to as “number of authors”);
Is recorded.

For example, in FIG. 5, for the user with the user ID “user101” in the history information DB 333,
(1) A list “R0001” in which electronic book IDs such as “DC001”, “DC003”, “DC004”, and “DC010” are listed,
(2) “5” for the “practical document (ID: CT001)” category, “11” for the “information chemistry (ID: CT003)” category, and “3” for the “hobby (ID: CT004)” category ,
(3) About “3” for the author of “○ Shinosuke Tada (ID: AT002)” and “5” for the author of “M R (ID: C011)”,
Is recorded.

The comment information DB 334 is a DB in which a user's evaluation and impression on a specific electronic book that the user registers using the communication terminal device 10 while the user logs in to the electronic book distribution service is recorded as comment information. For example, as shown in FIG. 7, the content information DB 334 has (1) an electronic book ID for each electronic book,
(2) Comment ID,
(3) User ID of the user who registered the comment information
(4) comment data body data,
(5) A list of read books of the corresponding user when registering comment information;
(6) The number of already read by category of the corresponding user when the comment information is registered (hereinafter referred to as “the number of the same category”);
(7) The number of already read by the author of the corresponding user when the comment information is registered (hereinafter referred to as “the number of the same author”);
Are recorded in association with each other.

  For example, in FIG. 7, in the comment information DB 334, users with CMT001 to CMT003 comments “User101”, “User110”, and “User210” are added to the comment information on the electronic book having the electronic book ID “DC001”. The main body data BDC0001 to BDC0003, the read book list AR001 to AR003, the category number “30”, and the author number “5” are recorded.

[2.3] Data Processing Unit Next, details of each unit of the data processing unit 350 of the present embodiment will be described with reference to FIGS. 8 and 9. 8 and 9 are diagrams for explaining the calculation of the degree of similarity of each comment user with the desired user in the information provision processing unit 354 of the present embodiment.

  As described above, the data processing unit 350 of the present embodiment executes each process of the electronic book distribution process, the read notification information collection process, the comment information registration process, and the comment information provision process.

As described above, the data processing unit 350 executes a predetermined application,
(1) a distribution processing unit 351 that executes electronic book distribution processing for reading out and distributing electronic book data requested by a logged-in user from the electronic book DB 332;
(2) When the user finishes reading the electronic book in conjunction with the communication terminal device 10, the read notification information for registering the read electronic book as a read book is collected and the collected read notice is collected. An information collection processing unit 352 for executing the read notification information collection process for generating or updating the history information of each user based on the information;
(3) a registration processing unit 353 that executes comment information registration processing for registering comment information regarding a registered specific electronic book in the comment information DB 334 while referring to history information of the corresponding user in the history information DB 333;
(4) Provide comment information for calculating the similarity based on the read experience of the desired user and other users based on the acquisition request of the desired user and providing comment information for the target electronic book based on the calculated similarity An information provision processing unit 354 that executes processing;
Is realized.

  For example, the information collection processing unit 352 of the present embodiment constitutes history information registration means of the present invention, and the registration processing unit 353 constitutes comment registration means of the present invention. Further, for example, the information provision processing unit 354 constitutes similarity calculation means and provision means of the present invention. Furthermore, the detail of each part is demonstrated below.

[2.3.1] Distribution Processing Unit The distribution processing unit 351 of the present embodiment has a function for distributing electronic book data to the communication terminal device 10.

  Specifically, the distribution processing unit 351 reads out the electronic book data of the electronic book specified during the user's login from the electronic book DB 331 and distributes it to the corresponding communication terminal device 10. In particular, in this embodiment, electronic book data that can be displayed only by a specific electronic book reader or an application that executes the function is distributed.

  In addition, the distribution processing unit 351, for example, distributes electronic book data collectively as a package from the first page to the last page to the corresponding communication terminal device 10, or divides it into a predetermined number, and for each divided part, Or it delivers to the corresponding communication terminal device 10 for every page in a streaming manner.

[2.3.2] Information Collection Processing Unit The information collection processing unit 352 confirms that the user registered in the electronic book distribution service has finished reading the electronic book provided by the electronic book distribution service, that is, has already been read. It has a function for collecting information as to whether or not.

  In particular, when the information collection processing unit 352 receives the read notification information from the communication terminal device 10 via the communication control unit 310, the history information of the corresponding user is not registered in the history information DB 333. If it is newly registered in the DB 333 or the history information of the corresponding user is already registered in the history information DB 333, the already registered history information is updated.

  Specifically, the information collection processing unit 352 performs communication control from the communication terminal device 10 as a specific electronic book reader or from the communication terminal device 10 executed by an application that realizes the function of the specific electronic book reader. The read notification information indicating that the electronic book including the user ID and electronic book ID of the user who uses the communication terminal device 10 has been read is received via the unit 310.

  In the present embodiment, the read notification information indicating that the reading of the electronic book has been completed is performed when the last page of the electronic book is displayed by a specific electronic book reader, or the text, imprint, explanation, or This is information that is notified when the last page of the main text is displayed on the assumption that other pages provided at the end of the published introduction etc. are classified in advance.

  Further, when the information collection processing unit 352 receives the read notification information, the information collection processing unit 352 extracts the user ID included in the received read notification information, searches the history information DB 333 based on the extracted user ID, and the corresponding user. The presence or absence of ID is determined. At this time, if the history information of the user ID has already been registered, the information collection processing unit 352 displays the read electronic book list (that is, history information) stored in association with the user ID. If the history information of the user ID is not registered, an area for newly registering various types of information is secured based on the user ID.

  Then, the information collection processing unit 352 extracts an electronic book ID included in the received read notification information, searches the electronic book DB 332 based on the extracted electronic book ID, and author ID and category of the corresponding electronic book. While acquiring ID, newly registering the extracted electronic book ID in the specified already-read electronic book list or newly reserved area, the number of electronic books of the corresponding author ID and the corresponding category ID “1” is added to the number of electronic books and the value is updated.

[2.3.3] Registration Processing Unit The registration processing unit 353 has a function for registering a user's evaluation and impression as comment information for the corresponding electronic book.

  In particular, when the user's login and the user's evaluation and impression regarding a specific electronic book are received as comment information from the logged-in user via the communication terminal device 10 during the user's login, the registration processing unit 353 registers the information in the history information DB 333. The comment information registration process for registering the received comment information in the comment information DB 334 is executed while referring to the own history information.

  Specifically, the registration processing unit 353 provides a web page generated for each electronic book for registering comment information to the corresponding communication terminal device 10 during user login, and the communication terminal device 10. And a comment information registration request and body data of the comment information are received together with the electronic book ID of the electronic book that is the registration target of the comment information.

  Upon receiving the comment information registration request and the main body data, the registration processing unit 353 extracts the electronic book ID from the registration request and recognizes the user ID of the logged-in user. In particular, the registration processing unit 353 extracts the electronic book ID by specifying the used Web page, and recognizes the user ID from the logged-in user information.

  Further, when the registration processing unit 353 extracts the electronic book ID and recognizes the user ID, the registration processing unit 353 searches the history information DB 33 based on the recognized user ID, and stores the current information in association with the corresponding user ID. Information of the already read electronic book list, the number of electronic books for each category, and the number of electronic books for each author (that is, history information) is read.

  Then, the registration processing unit 353 registers the extracted electronic book ID, the recognized user ID, the already read electronic book list at the time of reading, and the main data of the received comment information in the comment information DB 334 in association with each other. .

  The registration processing unit 353 registers the already read electronic book list when the comment information is registered together with the comment information, so that the history information that accurately reflects the usage experience of each user that changes every moment can be obtained. Since it can be used, similar users can be accurately detected.

[2.3.4] Information Provision Processing Unit The information provision processing unit 354 is a function for preferentially providing useful information to a desired user with respect to comment information registered for a corresponding electronic book. Have

In particular, when the information provision processing unit 354 receives an acquisition request of a desired user who desires to acquire comment information for a specific electronic book transmitted from the communication terminal device 10 via the communication control unit 310,
(1) Acquire history information of a desired user and history information of other users (hereinafter referred to as “comment users”) registered in association with comment information registered with respect to the corresponding electronic book;
(2) Comparing the acquired history information to calculate the similarity based on the read experience between the desired user and other users,
(3) providing other users' comment information to the desired user based on the detected similarity;
Execute comment information provision processing.

(Obtaining history information and others)
When the information provision processing unit 354 receives an acquisition request for the comment information of the desired user including the electronic book ID of the electronic book (that is, the target electronic book) for which a comment is desired to be acquired and the user ID of the desired user, An electronic book ID and a user ID are extracted from the request.

  The information provision processing unit 354 searches the history information DB 333 based on the extracted user ID, and stores history information associated with the user ID (hereinafter referred to as “desired user history information”). ) Is read and acquired.

  In addition, the information provision processing unit 354 searches the comment information DB 334 based on the extracted target electronic book ID, specifies one or more comment users who are commenting on the target electronic book, and specifies the specified comment The user's history information (hereinafter referred to as “comment user history information”) is read and acquired.

  Specifically, for the desired user history information, the information provision processing unit 354 searches the history information DB 333 based on the extracted user ID and stores the read electronic book stored in association with the user ID. The list, the number of electronic books in each category, and the number of electronic books of each author are read out from the history information DB 333 and acquired as desired user history information.

  Also, the information provision processing unit 354 searches the comment information DB 334 for the comment user history information based on the corresponding target electronic book ID, and stores each comment stored in association with the target electronic book ID. The comment user is identified by detecting the user ID of the comment user of the information (that is, a list of comment users is extracted), and the read information stored in the comment information DB 334 is associated with the user ID of the comment user. The electronic book list, the number of electronic books in each category, and the number of electronic books of each author are read and acquired as comment user history information.

  Note that the information provision processing unit 354 searches the comment information DB 334 based on the extracted target electronic book ID, and if the corresponding comment information is not stored in the comment information DB 334, it is determined that there is no comment information. To the communication terminal device 10 to be transmitted.

(Similarity calculation)
The information provision processing unit 354 eliminates comment users whose target electronic books are not registered as already read electronic books in order to preferentially provide comment information of comment users that are useful to the desired users. And the similarity based on the read experience with each comment user.

  In particular, the information provision processing unit 354 executes a predetermined calculation based on the acquired desired user history information and the one or more comment user history information to obtain the desired user history information and each comment user history information. Each similarity is calculated. Further, the information provision processing unit 354 stops the calculation of the similarity for a comment user whose target electronic book is not registered as a read electronic book, and forcibly sets the value to the minimum value, that is, “ Set to “0”.

  Specifically, the information provision processing unit 354 includes the already read electronic book list included in the desired user history information, the number of electronic books by category, the number of electronic books by author, and the history information for comment users. The desired user history information by comparing the read electronic book list, the number of electronic books by category, and the number of electronic books by author, and executing a predetermined operation such as cosine similarity. Each similarity with the comment user history information is calculated.

For example, the information provision processing unit 354 calculates the similarity using the cosine similarity method.
(1) A value in which the presence / absence of reading in each electronic book is set to “0” and “1” from the read electronic book list of the desired user excluding the target electronic book, and the same attribute as the target electronic book A vector “Q” shown in (Equation 1) consisting of the number of read electronic books of the desired user in the electronic book having the category “X” and the author “Y” shown,
(2) A value in which the presence / absence of reading in each electronic book is set to “0” and “1” from the user's already read electronic book list excluding the target electronic book, and the same attribute as the target electronic book A vector “Sj” shown in (Equation 2) consisting of the number of read electronic books of the comment user in the electronic book having the category “X” and the author “Y” shown,
(3) Using the vector space model of the desired user vector “Q” and the comment user vector “Sj”, the similarity (sim) with the desired user is calculated for each comment user using (Expression 3). .

In (Expression 1) and (Expression 2), “1 to m” indicates a serial number assigned to each electronic book such as electronic books A, B, and C excluding the target electronic book, and “t ¹ ”. “T ^m ” indicates “1” when read, and indicates “0” when not read. Further, “x” is the number of already read electronic books in the category “X” to which the target electronic book belongs, and “y” is the already read electronic book of the same author “Y” as the target electronic book. Indicates a number.

  Moreover, as shown in FIG. 8, as the desired user history information and the comment user history information, whether or not the desired user a and the comment users A to E are registered as already read electronic books, and the target electronic book, Assuming that the number of read electronic books of the desired user and each comment user in the electronic books having the same category and author is acquired, the similarity is calculated using the cosine similarity method. Suppose. However, it is assumed that the comment user E has not read the target electronic book.

  In this case, the information provision processing unit 354 calculates the similarity between each comment user A to E and the desired user a as shown in FIG. In particular, when providing comment information up to the top three, the information provision processing unit 354 performs communication corresponding to preferentially displaying comment information of comment users A, B, and C (that is, similar users). It transmits to the terminal device 10 and provides it to the user a.

  Furthermore, the information provision processing unit 354 of the present embodiment uses the same category and the same author as the attributes of the electronic book when calculating the similarity, but only one of them may be used.

(Providing comment information)
The information providing processing unit 354 is registered by a comment user having a predetermined degree of similarity such as the highest degree of similarity, the degree of similarity up to a predetermined rank, or the degree of similarity equal to or higher than a predetermined value among the calculated similarities The comment information thus provided is provided to the communication terminal device 10 that can be viewed by the desired user.

  Specifically, the information provision processing unit 354 identifies a comment user having a predetermined condition, and associates the comment information registered in the comment information DB 334 with the user ID and the target electronic book ID of the comment user. The main body data is read, and the comment information (a list of comment information in the case where there are a plurality of comment information) is provided to the corresponding communication terminal device 10 so as to be viewable by the desired user together with the user name of the comment user.

[3] Operation of Communication System Next, comment information provision processing executed in the communication system 1 of the present embodiment will be described using FIG. In addition, FIG. 10 is a flowchart which shows the comment information provision process performed in the communication system 1 of this embodiment.

  In this operation, the user management DB 331, the history information DB 333, and the comment information DB 334 store information that requires user information, history information, or comment information, respectively. It is assumed that predetermined electronic book data is stored and the communication terminal device 20 is used to log in to the electronic book distribution service by a predetermined user.

  In addition, a description will be given assuming that the request is made in response to a request from the communication terminal device 10, and a case where recommendation information is transmitted to the communication requesting user 10 of the recommendation requesting user by e-mail will be described.

  Further, in this operation, the similarity between the desired user history information and one or more comment user history information is calculated based on the cosine similarity method.

  In this operation, the communication terminal device 10 is logged in to the electronic book distribution service, the title of the electronic book for which comment information is desired to be obtained is displayed on a display unit (not shown), and the comment information is displayed. It is assumed that the system waits for an operation input for acquisition to be made to an operation unit (not shown).

  First, when the communication terminal device 10 detects an input operation related to provision of comment information executed by an operation unit (not shown) by the user (step S100), the content including the user ID and the electronic book ID with respect to the information providing server device 30. An information acquisition request is transmitted to shift to a reception standby state (step S101). At this time, the communication terminal device 10 transmits a comment information acquisition request while maintaining the login state.

  Next, in the information provision server device 30, the information provision processing unit 354 of the data processing unit 350 includes the comment information of the desired user including the electronic book ID of the target electronic book and the user ID of the desired user transmitted from the communication terminal device 10. When an acquisition request (hereinafter simply referred to as “acquisition request”) is received (step S201), an electronic book ID and a user ID are extracted from the received acquisition request (step S202).

  Next, the information provision processing unit 354 searches the history information DB 333 based on the extracted user ID, and stores desired user history information (read electronic book list, The number of electronic books in each category and the number of electronic books of each author)) are read and acquired (step S203).

  Next, the information provision processing unit 354 searches the comment information DB 334 based on the extracted target electronic book ID, and determines the presence or absence of each comment user stored in association with the target electronic book ID (step) S204). At this time, when the information provision processing unit 354 determines that there is no comment user stored in association with the target electronic book ID, that is, there is no user ID associated with the target electronic book ID. When this operation is terminated and it is determined that there is a comment user stored in association with the target electronic book ID, the process proceeds to step S205.

  Next, when it is determined in the process of step S204 that there is a comment user stored in association with the target electronic book ID, the information provision processing unit 354 stores the information in association with the user ID of the comment user. The comment user history information (read electronic book list, the number of electronic books in each category, and the number of electronic books of each author) is read and acquired (step S205).

  Next, the information provision processing unit 354 excludes comment users whose target electronic books are not registered as already read electronic books (hereinafter referred to as “unread comment users”) (step S206). Specifically, the information provision processing unit 354 forcibly sets the similarity of the comment user that has not been read about the target electronic book to “0”.

  Next, the information provision processing unit 354 uses the desired user history information acquired by the process of step S203 and the comment user for the comment user acquired by the process of step S204 other than the comment user whose similarity is forcibly set by the step S206. Based on the history information, the similarity between the desired user history information and each comment user history information is calculated using the cosine similarity method (step S207).

  Next, the information provision processing unit 354 selects comment users whose calculated similarity values are from the top to the third place, or comment users having predetermined conditions such as the similarity being equal to or higher than a preset threshold. (Step S208), and the main body data of the comment information registered in the comment information DB 334 in association with the user ID and the target electronic book ID of the comment user is read (step S209).

  Next, the information provision processing unit 354 transmits the comment information (a list of comment information if there are a plurality of comment information) together with the user name of the comment user to the corresponding communication terminal device 10 so that it can be viewed by the desired user ( Step S210), this operation is terminated.

  Next, when receiving the comment information transmitted from the information providing server device 30 (step S102), the communication terminal device 10 displays the received comment information so that it can be viewed by the user (step S103), and ends this operation. .

  As described above, in the present embodiment, history information indicating the user's past read experience can be collected, and a user who wishes to obtain comment information based on the collected history information and other users Since the similarity indicating the similarity can be calculated, it is possible to eliminate the provision of the comment information of the user who does not have the read experience with respect to the corresponding electronic book, and one of the indexes of the user's values The comment information of other users who share common values can be preferentially provided to the desired user based on the category (genre) of the electronic book or the presence or absence of matching of attributes such as the author.

  Therefore, in the present embodiment, the comment information of other users who have already purchased the electronic book from the registered comment information and have the same values as the specific user is used. Since it can be provided to the specific user, it is possible to reliably provide useful information to the desired user before purchasing, browsing or using the electronic book.

  In the present embodiment, for example, when a specific electronic book is an electronic book, comment information of an unused user of the electronic book, such as an unread user, is excluded from the comment information provided to the desired user. In addition, it is possible to reliably provide only comment information of a user who has experience using an electronic book, so that an electronic book can be purchased for a specific user who wants to purchase, view or use the electronic book, Useful information can be provided before viewing or use.

  In particular, in this embodiment, when comment information is registered, history information indicating the read experience in the electronic book of the user who registered the comment information can be registered in association with the registered comment information. History information that accurately reflects the reading experience of each user, which changes every moment, can be used, and as a result, the similarity can be calculated accurately.

  In the present embodiment, when it is detected that a predetermined condition such as the last page of the electronic book is displayed, the read experience of the corresponding electronic book can be registered in the history information. Unread user comment information about the book can be excluded from the comment information provided to the desired user.

  Further, in the present embodiment, when the history information of the comment user does not include the read experience of the target electronic book, the similarity between the comment user and the desired user is forcibly set to the minimum value, etc. Since the calculation can be canceled, by excluding other users who have no experience of using the specific object from the target of similarity calculation, the comment information of the user who has no experience of using the specific object can be obtained as a result. It can be excluded from the comment information provided to the desired user.

In the present embodiment, since the similarity with the desired user can be calculated based on the history information when the comment information of the comment user is registered, the usage experience of each user that changes every moment is accurately reflected. History information can be used.

[4] Modified Example Next, a modified example of the above embodiment will be described with reference to FIGS. 11 and 12. 11 and 12 are diagrams for explaining the calculation of the similarity between each comment user and the desired user in the data processing unit 350 according to the first modification.

[4.1] Modification 1
The data processing unit 350 of the above embodiment is similar to a user who desires to obtain comment information and a comment user who has registered comment information for the target electronic book based on historical information about each read electronic book. The comment user's comment information with a predetermined condition is preferentially provided, but the user and the comment user can use the annotation such as a memo or a marker given to each electronic book by the user. The similarity may be calculated.

  Specifically, the data processing unit 350 is entered as the information collection processing unit 352 when a predetermined entry such as a memo or a marker is performed by the user while browsing the electronic book in the communication terminal device 10. The text or mark and the characters in the marked electronic book are specified, and the specified text data and other data are stored in the history information DB 333 in association with the electronic book ID as history information of the corresponding user.

  In addition, each time the comment information is registered as the registration processing unit 353, the data processing unit 350 stores the text data and other data specified at that time in the comment information DB 334 as the comment user history information, the target electronic book ID, the comment It is stored together with comment information in association with the user ID of the user.

  Then, the data processing unit 350 stores, as the information provision processing unit 354, the desired user history information recorded in the history information DB 333 and the comment information DB 334 in association with the target electronic book and together with the comment information. From the comment user history information, for example, a desired user and a vector of each comment user are generated using TF-IDF (Term Frequency-Inverse Document Frequency), and based on the generated desired user and the vector of each comment user The similarity between the desired user and each comment user is calculated, and the comment information is specified as described above using the calculated similarity and provided to the corresponding communication terminal device 10.

  In particular, in vector generation by TF-IDF, the data processing unit 350 performs morphological analysis on each piece of text data of annotation as history information to recognize a word and identify a mark.

  Further, the data processing unit 350 generates a vector R (expression 4) and a vector T (expression 5) formed by TF-IDF indicating the appearance frequency of each word and mark for each desired user and comment user. That is, the data processing unit 350 calculates “TF-IDF (word-to-word)” for each word or mark calculated based on the word and mark appearance frequency “TF” for each user and the word and mark appearance frequency “DF” for all users. = TF / DF) "vector R (desired user) and vector T (comment user).

In (Expression 4), “n” indicates a word serial number, and “t ¹ ” to “t ⁿ ” indicate the calculated TF-IDF value of each word. In (Expression 5), “j” indicates a user ID, and “s _j ¹ ” to “s _j ⁿ ” are TF-IDF values for each word as in (Expression 4).

  Further, as shown in FIG. 11, it is assumed that the frequency of each user in the overall frequency of each word of the desired user a and the comment users A to E is acquired as the desired user history information and the comment user history information. It is assumed that the similarity is calculated using the cosine similarity method. However, it is assumed that the comment user E has not read the target electronic book.

  In this case, the information provision processing unit 354 calculates the similarity between each comment user A to E and the desired user a as shown in FIG.

  On the other hand, when the data processing unit 35 calculates the TF-IDF vector R of similar users and the TF-IDF vector T of each comment user, the cosine similarity is calculated based on the vectors R and T as described above. The similarity (Equation 3) between each comment user and the desired user is calculated using this method.

  As described above, the data processing unit 35 forcibly sets the similarity to the minimum value, that is, “0” for comment users whose target electronic books have not been read.

[4.2] Modification 2
When calculating the degree of similarity between the desired user and the comment user, the data processing unit 350 of the above embodiment counts the number of read electronic books in the category to which the target electronic book belongs and the same author as the author of the target electronic book. The number of electronic books read by the author is used, but the number of electronic books read in the category to which the target electronic book belongs and the number of electronic books read by the same author as the author of the target electronic book are high. Assuming that the user is a user rich in knowledge in the field, a certain value is added to the similarity of the comment user, or only the comment information of the comment user is preferentially provided to the desired user. Good.

[4.3] Modification 3
The data processing unit 350 of the embodiment may calculate the similarity between the desired user and each comment user for each electronic book periodically as batch processing.

[4.4] Modification 4
In the above embodiment, each DB is provided in the information providing server device 30, and these DBs are managed and controlled only by the information providing server device 30. However, each DB management and control entity is separately provided. A simple computer system may be used.

[4.5] Modification 5
In the above embodiment, an electronic book is used as an object, and information related to the reading experience is used as history information. However, the present invention is not limited to this, and games, music, movies, and other still images and moving images are used. It can be applied to other digital contents such as images, and also to other articles.

DESCRIPTION OF SYMBOLS 1 ... Communication system 10 ... Communication terminal device 30 ... Information provision server device 310 ... Communication control part 320 ... ROM / RAM
330 ... Recording device 331 ... User information DB
332 ... Electronic book DB
333 ... History information DB
334 ... Content information DB
340 ... Management control unit 350 ... Data processing unit 351 ... Distribution processing unit 352 ... Information collection processing unit 353 ... Registration processing unit 354 ... Information provision processing unit

Claims (9)

A server device connected to a communication terminal device via a network and providing comment information for an object to be used by a user,
In conjunction with the communication terminal device, the user collects information on an experienced object that has been used by the user, and for each user, the object that each user has used in the past based on the collected information. History information registration means for registering history information indicating the history of the history information in the history information database;
In conjunction with the communication terminal device, based on the user's instruction, comment registration means for registering the user's comment on the object as the comment information in the comment database;
When receiving the comment information acquisition request regarding the specific object of another user from the specific user via the communication terminal device, the history information of the specific user is different from the specific user. Similarity calculation means for calculating the similarity between the other user and the specific user by comparing the history information of the other user whose specific target is the experienced target. ,
Providing means for providing comment information regarding the specific object in the other user to the desired user based on the calculated similarity;
With
The history information includes
(1) specific information for specifying the experienced object;
(2) At least one of attribute information indicating the attribute of the experienced object and one of the categories of the plurality of categories into which the object is classified, and information specifying the creator of the object Information about one of the objects,
Is included at least,
The similarity calculation means includes:
Based on the presence / absence of experience in another object different from the specific object and / or a numerical value based on the information related to the object, the history information of the specific user and the other user's A server device that compares history information . The server device according to claim 1 ,
The information on the object is the number of the experienced objects of the specific user and the other users in the category to which the specific object belongs, or the specific user and the other belonging to the creator of the specific object Server device , which is the number of objects experienced by the user . In the server apparatus according to claim 1 or 2,
The history information registration means, when the communication terminal device detects the use of an object or the provision of conditions relating to the use of the object, registers the detected object as an experienced object in the history information, Server device. In the server apparatus of Claims 1-3,
The server device, wherein the predetermined condition includes at least that the specific object is included in an object already experienced by the other user. In the server apparatus according to any one of claims 1 to 4,
In the object having the same attribute as the specific object, and whether the similarity calculation means is registered as the experienced object in the desired user and the other user of the specific object A server device that calculates the degree of similarity between the specific user and the other user based on at least one of the number of objects to be experienced by the desired user and the other user. In the server apparatus according to any one of claims 1 to 5,
The server apparatus in which the similarity calculation means calculates the similarity based on history information when the comment information is registered. In the server apparatus according to any one of claims 1 to 6 ,
The object is an electronic book;
The server device in which the history information registration unit registers information on a read electronic book in the history information database. A server device connected to a communication terminal device via a network and providing comment information for an object to be used by a user,
Identification for identifying the experienced object based on the collected information for each user while collecting information related to the experienced object used by the user in conjunction with the communication terminal device History information registration means for registering in the history information database history information indicating the history of the object that each user has experienced in the past, including at least attribute information indicating information and attributes of the experienced object;
Comment registering means for registering a user comment on the object in the comment database as the comment information based on the user instruction in conjunction with the communication terminal device;
When receiving the comment information acquisition request regarding the specific object of another user from the specific user via the communication terminal device, the history information of the specific user is different from the specific user. A degree-of-similarity calculation means for calculating a degree of similarity between the other user and the specific user by comparing the history information of the other user whose specific object is the experienced object . as well as,
Providing means for providing comment information regarding the specific object in the other user to the desired user based on the calculated similarity,
Function as
The history information includes
(1) specific information for specifying the experienced object;
(2) At least one of attribute information indicating the attribute of the experienced object and one of the categories of the plurality of categories into which the object is classified, and information specifying the creator of the object Information about one of the objects,
Is included at least,
The similarity calculation means includes:
Based on the presence / absence of experience in another object different from the specific object and at least one of the numerical values based on information on the specific object, the history information of the specific user and the other A program characterized by comparing user history information . An information providing method for providing comment information on an object to be used by a user,
Collecting information related to an experienced object that has been used by the user from a communication terminal device via a network, and identifying the experienced object based on the collected information for each user A history information registration step of registering history information indicating a history of the target object that each user has used in the past in a history information database, including at least attribute information indicating specific information and an attribute of the experienced target object;
A comment registration step of registering a comment of the user for the object transmitted from the communication terminal device in the comment database as the comment information;
When the request for obtaining the comment information related to a specific object in another user is executed from a specific user via the communication terminal device, the history information of the specific user is different from the specific user. Similarity that calculates similarity between the other user and the specific user by comparing the history information of the other user who is the user and the specific object is the experienced object A calculation process;
A providing step of providing comment information about the specific object in the other user to the desired user based on the calculated similarity;
Including
The history information includes
(1) specific information for specifying the experienced object;
(2) At least one of attribute information indicating the attribute of the experienced object and one of the categories of the plurality of categories into which the object is classified, and information specifying the creator of the object Information about one of the objects,
Is included at least,
In the similarity calculation step,
Based on the presence / absence of experience in another object different from the specific object and at least one of the numerical values based on information on the specific object, the history information of the specific user and the other An information providing method characterized by comparing user history information .

Images