JP2007018270A - Storage management device and user profile management method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology for enabling the owner of the original file to efficiently manage the disclosure of a user profile to be extracted from files stored in a network storage system. <P>SOLUTION: This storage management device is provided with a storage management part 110 for receiving and recording a file from a terminal 500, and for transmitting the file in response to a request from the terminal 500, file analyzing parts 210, 220 and 230 for extracting a keyword from the file, and for preparing a content profile, a user profile analyzing part 240 for preparing a user profile based on the access history of the terminal 500 to the content profile and the file and a user profile disclosure control part 260 for managing the disclosure of the user profile, and configured to mange the user profile by a storage center 10 which inputs a keyword or content profile as disclosure limitation information, and limits the disclosure of the user profile corresponding to the keyword or content profile. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a system for analyzing user preferences based on information of electronic files in various formats held by the user and using it as marketing information. The user himself / herself can easily disclose his / her privacy information. It is possible to reduce network storage system usage fees by mediating product sales, etc. using user profile access control technology that specifies personal information and personal information stored in network storage systems for individuals It is related to the technology.

  With the spread of PVR (Personal Video Recorder), digital cameras, camera-equipped mobile phones, etc., individuals are now in a state of holding a large amount of digital files, and the demand for personal large-capacity storage is increasing.

  On the other hand, with an increase in the types of home appliances that can be connected to a broadband network or the network, network storage that stores and uses such digital files in a large-capacity storage via the network is being recognized by users.

  As a form of this network storage, an individual user purchases equipment and installs it in a home or office (for example, see Non-Patent Document 1), or uses storage installed in the center via the Internet or the like. There exists a form (for example, refer to Patent Document 1).

In the future, the latter form of access to storage from anywhere is expected to become widespread due to the speeding up of mobile phone network connections, the spread of video content viewing on mobile phones, and the networking of digital cameras. be able to.
JP 2004-320155 A Buffalo Product Information Storage Device Hard disk, [online], [Search June 20, 2005], Internet <URL: http: // buffalo. melcoinc. co. jp / products / catalog / storage / hd. html>

  The information stored in the network storage is tailored to individual preferences and can be said to be a valuable information source for knowing user preferences along with the access history.

  Network storage services, on the other hand, are expensive to increase the capacity of the network to improve reliability and file access speed, but it is difficult to pass it on to service charges, and a mechanism to collect other than service charges is required. It is thought that.

  As one of the solutions, a method of selling the user's preference obtained from the contents of the network storage upon agreement with the user as marketing information can be considered. However, this method has a problem that the user protects his / her privacy.

  With existing network storage, it is possible to set public / non-public for each file, but this requires a lot of trouble for the user when storing a large amount of files. In addition, the information disclosed to third parties is not the contents of the file itself, but information such as keywords and user profiles extracted from it, so even if the file itself is restricted, it is desirable for the user to disclose it to the outside. There is a possibility that no keywords or profiles will be disclosed.

  On the other hand, although it is not premised on network storage, methods for searching user preferences using characteristics of access logs and audio / image / video files are disclosed in JP-A Nos. 2004-157649, 2004-171323, and the like. However, a means for confirming what information is disclosed by the user himself / herself and specifying the disclosure range is not realized.

  Japanese Laid-Open Patent Publication No. 2004-13231 discloses a method for examining user preferences using file information stored in a network storage, but means for protecting privacy is not realized.

  An object of the present invention is to provide a technique that allows an owner of an original file to efficiently manage the disclosure of a user profile extracted from a file stored in the network storage system.

  Accordingly, in order to solve the above problem, the invention according to claim 1 receives and records a file from a user terminal via a network, creates a user profile from the file, and manages disclosure of the user profile. A storage management device that receives and records a file from a user terminal, sends the file in response to a request from the user terminal, and creates a content profile by extracting keywords from the recorded file A file analysis unit, a user profile analysis unit that creates a user profile based on the access history of the user terminal with respect to the content profile and the file to be recorded, and a user profile disclosure management unit that manages disclosure of the user profile for each user And having And features.

  The profile disclosure management unit may input the keyword or the content profile as disclosure restriction information about the user profile, and the user profile corresponding to the keyword or the content profile. The disclosure is limited.

  Further, in the invention according to claim 3, the profile disclosure management unit inputs the keyword or the content profile as the disclosure restriction information for each type of the one using the user profile, and the keyword for each type Or restricting the disclosure of the user profile corresponding to the content profile.

  The storage management device is connected to a user profile user terminal, receives a user profile disclosure request from the user profile user terminal, and corresponds to the user profile user terminal. The transaction brokerage management unit further transmits to the user profile user terminal a user profile other than the user profile corresponding to the keyword or the content profile for the type to be performed.

  Further, in the invention according to claim 5, the storage management device is connected to an EC site corresponding to an intermediary service, receives a product purchase request from the user terminal, and relates to the type to which the EC site corresponding to the intermediary service corresponds. The user profile other than the user profile corresponding to the keyword or the content profile is transmitted to the brokerage service compatible EC site, the product list corresponding to the transmitted user profile is received, and the product list is transmitted to the user terminal. It further has a trading brokerage management unit that transmits and manages the amount of brokerage fee paid from the brokerage service EC site.

  The invention according to claim 6 is a user profile management in a storage management device that receives and records a file from a user terminal via a network, creates a user profile from the file, and manages the disclosure of the user profile. A storage management step in which a storage management unit receives and records a file from a user terminal and transmits the file in response to a request from the user terminal, and a file analysis unit extracts keywords from the recorded file A file analysis step for creating a content profile, a user profile analysis step for creating a user profile based on an access history of a user terminal for the content profile and the file to be recorded by a user profile analysis unit, and a user profile Wherein the file disclosure management unit has a user profile disclosure management step of managing for each user the disclosure of the user profile.

  According to a seventh aspect of the present invention, in the profile disclosure management step, the keyword or the content profile is input as disclosure restriction information about the user profile, and the user profile corresponding to the keyword or the content profile is input. The disclosure is limited.

  In the invention according to claim 8, in the profile disclosure management step, the keyword or the content profile is input as the disclosure restriction information for each type using the user profile, and the keyword is input for each type. Or restricting the disclosure of the user profile corresponding to the content profile.

  The storage management device is connected to a user profile user terminal, and the sales mediation management unit receives a user profile disclosure request from the user profile user terminal, and the user profile It further has a trading brokerage management step of transmitting to the user profile user terminal a user profile other than the keyword for the type to which the user terminal corresponds or the user profile corresponding to the content profile.

  According to a tenth aspect of the present invention, the storage management device is connected to a brokerage service compatible EC site, and the brokerage management unit receives a product purchase request from the user terminal, and the brokerage service compatible EC site Transmitting the user profile other than the user profile corresponding to the keyword or the content profile corresponding to the type to the brokerage service compatible EC site, receiving a product list corresponding to the transmitted user profile, and the product list And a brokerage management step for managing the amount of brokerage fee paid from the brokerage service EC site.

  According to the first and sixth aspects of the present invention, it is possible to restrict the disclosure of each user profile for each user.

  According to the second and seventh aspects of the present invention, the user can restrict the disclosure of the user profile by inputting a keyword or a content profile.

  According to the third and eighth aspects of the present invention, the user can set a keyword or a content profile for each type regarding the disclosure restriction of the user profile. For example, it is possible to provide more information or important information for companies belonging to a strict category of personal information management, and provide less information or less important information for companies that do not. Is possible.

  According to the fourth and ninth aspects of the present invention, it is possible to provide a user profile without a disclosure restriction to a user profile user while restricting the disclosure by a keyword or a content profile regarding the type of user. is there.

  In the inventions according to claims 5 and 10, based on a user profile without disclosure restriction while restricting disclosure with a keyword or content profile for the type of EC site corresponding to the brokerage service in response to a user's product purchase request. It is possible to provide a product list. Also, it is possible to return the content profile disclosure fee to the user by managing the brokerage fee.

  According to the first to tenth aspects of the present invention, the storage service user can restrict disclosure of his / her user profile without restricting disclosure for each individual file.

  According to the invention described in claims 4, 5, 9, and 10, a user using the user profile user terminal can receive a service based on the user profile from the service provider.

  According to the fifth and tenth aspects of the present invention, the content profile disclosure fee can be returned to the storage service user, and the user's storage service usage fee can be reduced.

  Hereinafter, embodiments of the network storage system will be described.

  FIG. 1 is a configuration diagram of a network storage system using a network storage center. In this embodiment, the network storage center 10 is composed of three servers, that is, the network storage server 100, the user profile management server 200, and the sales brokerage server 300, but these are the same even if they are constructed on different hosts. It may be built on the host.

  In FIG. 1, the storage server 100 stores storage via the network 400 for users registered in the storage service user management unit 120 and the storage service user management unit 120 that manage information about network storage service users. Storage management unit 110 that provides a function to save a file transferred from the service user terminal 500 and a function to transfer the saved file to the user terminal 500 in response to a request from the user, and stores in the storage management unit 110 The access history management unit 130 manages the access history (creation, modification, browsing, and deletion) of the read file.

  The user profile management server 200 includes a video analysis unit 210 having a function of extracting a keyword from a video file stored in the storage management unit 110, an image analysis unit 220 having a function of extracting a keyword from an image file, and a keyword from a document file. A text analysis unit 230 having a function of extracting, a user profile analysis unit 240 that generates a user profile based on these three analysis results and information accumulated in the access history management unit 130, and a user that accumulates user profile analysis results The profile storage unit 250 includes a user profile disclosure control unit 260 that manages a disclosure destination and a disclosure range of a user profile.

  As a means for extracting a keyword from a video file, an image file, and a document file, an existing method such as a method disclosed in Japanese Unexamined Patent Application Publication Nos. 2004-157649 and 2004-171323 is used. It is possible.

  For example, the top keywords and keyword vectors of the file are aggregated, and a pair of top keywords and keyword vectors that appear frequently is calculated by a technique such as TFIDF and stored in the knowledge system database. At this time, if the number of elements of the top keyword and keyword vector is larger than the default values i and N, respectively, i and N are selected in descending order of the importance of the word, and this is selected as the top keyword and keyword vector. A set of

  About Top Keyword: One top keyword represents one region of interest and is expressed by a pair of [word: importance of word]. A profile is defined as a set of hierarchical keyword information, and the profile can hold a top keyword for each maximum default value i. In the initialization stage, the user profile does not have the importance of the top keyword. It is automatically constructed and updated whenever the user refers to information such as text according to his / her preference.

  About Keyword Vector: The keyword vector is a set that expresses a detailed region of interest and includes a maximum of N pairs of [word: importance of word: update time]. The keyword vector holds one or more top keywords in the upper hierarchy. Many methods have been proposed in the past for storing [word: importance of word] as a pair. In particular, a method called TFIDF (Term Frequency and Inverse Document Frequency) calculates the above set (where N is not a fixed value) for text information. This technique is very famous and effective.

  About importance: Express the importance of a word in a profile. It can be said that the higher this value, the more characteristic the word is in the profile. In the user profile, this means deep interest in the word.

  As a means for creating a user profile, an existing method disclosed in Japanese Patent Application Laid-Open No. 2004-157649 can be used.

  For example, for content profiles: (1) Extract words from text information about content. For each extracted word, the frequency of occurrence of the word in the text is examined, and a keyword vector is calculated. The keyword vector is calculated using existing TFIDF or the like.

(2) Metadata (genre information) added to content is used as a top keyword. By searching the knowledge system database using the top keyword as a search key, a template for the top keyword and keyword vector is created. The importance of each vector is the initial value 0.
(3) Next, the importance of the keyword vector is added for each content. Therefore, when the word extracted by (1) is included in the keyword vector of (2), the keyword vector of each word is set as the importance. If it is not included in the keyword vector in the template of (2), it is ignored.

For the user profile: (1) For the top keywords in the user profile, the importance is calculated as follows.
W _t = total number of times each top keyword appears in the reference content / total number of references.

  (2) The importance of the keyword vector in the content profile is added as the importance of each keyword vector in the user profile.

  (3) The update time t is changed based on the reference time.

  The processes (1) to (3) are repeated each time the user refers to the content.

  The sales mediation management server 300 uses the interface for mediation service provided by each EC site 700 based on the user profile stored in the user profile storage unit 250 via the user profile disclosure control unit 260. The sales brokerage management unit 310 performs product recommendation for each user.

  The network 400 is exemplified by the Internet, but can be realized even if a part of the network 400 is configured as an intranet within a company.

  The storage service user terminal 500 can use, for example, a personal computer, a mobile phone with a camera function and an Internet connection function, or a video recorder with a network connection function. In addition, a digital camera or a video camera that does not have a network connection function may also take a form in which an image or video is once taken into a personal computer. In addition, the storage service user makes a contract with the entity that operates the network storage center, and is registered in advance in the storage service usage management unit 120 and can occupy a certain area in the storage management unit 110. Shall.

  As the user profile user terminal 600, for example, a personal computer or a mobile phone with an Internet connection function can be used. Further, the user profile user makes a contract with the entity operating the network storage center, is registered in advance in the user profile disclosure control unit 260, and can acquire user profile information within the range of the conditions here. .

  The brokerage service EC site 700 is a WWW site that sells products and services via the Internet, and provides a brokerage service that pays a commission according to the sales volume for those that broker the sale of products provided by the company. (For example, amazon.com, Rakuten, etc.).

[Disclosure restriction settings]
In this embodiment, as described above, it is assumed that an existing user profile creation technique is used. Here, the processing will be described on the premise of the profile structure as shown in FIG.

  In FIG. 2, only the user profile 710 is disclosed to the user profile user. First, the procedure for setting disclosure restrictions for this profile will be described.

  First of all, we will explain the preparation procedure for setting disclosure restrictions. FIG. 3 shows a profile management table 251 stored in the user profile. In this system, the user ID uniquely identifies the storage service user. The profile ID uniquely identifies a profile in one user. The profile type identifies whether the profile is a content profile or a user profile, and the main body manages the contents of the profile itself. Note that both the content profile 720 and the user profile 710 in FIG. 2 are managed by this table.

  Based on the profile management table 251, the user profile disclosure control unit 260 creates a profile keyword management table 261 shown in FIG. This is created by extracting a representative one of a plurality of keywords for the user profile among the profiles included in the main body of the profile management table 251 by an existing keyword extraction method. If the main body contains only one keyword, it is assumed to be representative as it is.

  Next, a procedure for setting a disclosure restriction by a storage service user will be described. In this embodiment, the disclosure restriction can be specified by a keyword or an accumulated content profile. Means for accumulating these contents are a disclosure restriction management table 262 shown in FIG. 5, a disclosure keyword management table 263 shown in FIG. 6, and a disclosure profile management table 264 shown in FIG.

  In the disclosure restriction management table 262, the user ID uniquely identifies the storage service user in this system, like the user ID in the profile management table 251. The disclosure restriction ID uniquely identifies the disclosure restriction among one storage service user. The disclosure restriction type identifies whether this restriction is based on a keyword or a profile. The business type ID indicates what type of business the disclosure is desired to be restricted, and is selected from the business type management table 265 shown in FIG. In addition, although the example of the procedure about the restriction | limiting by an industry is shown here, evaluation by the system (for example, http: www.privacymark.jp) which evaluates a company's approach content about a company's scale and personal information protection is shown. /, And http: www.truste.jp.org/ etc.).

  In the disclosure keyword management table 263, the disclosure restriction ID is the same as the disclosure restriction ID in the disclosure restriction management table 262, and the keyword indicates a representative keyword of a profile that restricts disclosure.

  In the disclosure profile management table 264, the disclosure restriction ID is the same as the disclosure restriction ID in the disclosure restriction management table 262, and the profile ID is the profile ID of the content profile stored in the profile management table 251. Disclosure of user profiles similar to profiles is limited.

  When using these tables to set disclosure restrictions based on keywords, the user profile disclosure control unit 260 sends the user profile to the storage service user terminal 500 through the network 400 based on the profile management table 251. To present.

  By referring to the contents, when the user designates not to disclose his / her profile related to which keyword for which industry, the user profile disclosure control unit 260 discloses a new disclosure restriction based on the information. The limit management table 262 and the disclosure keyword management table 263 are accumulated. When setting the restriction by profile, when the user designates the content stored by himself / herself, the user profile disclosure control unit 260 extracts the profile ID from the profile management table 251 and newly discloses based on the profile ID. The restriction is accumulated in the disclosure restriction management table 262 and the disclosure profile management table 264.

[Disclosure to user profile users]
Next, a procedure when the user profile user uses the user profile in the system will be described.

  When a user profile user requests a user profile from the user terminal 600, the user profile disclosure control unit 260 extracts the business type ID of the user using the user profile user management table 266 shown in FIG.

  Next, the following processing is performed for each user registered in the network storage center 10.

  First, one user ID is selected, and based on the business type ID extracted in the preceding stage, disclosure restrictions imposed by this user are extracted. When there is no disclosure restriction, the user profile disclosure control unit 260 extracts the user profile related to this user ID from the profile management table 251 and transmits it to the user profile user terminal 600.

  If there is a disclosure restriction, a profile keyword related to this user ID is extracted from the profile keyword management table 261 (hereinafter referred to as a profile candidate).

  Next, a disclosure restriction management table 262 with a disclosure restriction type of “keyword” is extracted, keywords are extracted from the disclosure keyword management table 263 based on the disclosure restriction ID (hereinafter referred to as a restriction keyword), and a profile is extracted. If any candidate matches the restricted keyword, remove it from the profile candidate. This process is performed for all disclosure restrictions whose disclosure restriction type is “keyword”.

  Next, for a disclosure restriction whose disclosure restriction type is “profile”, first, a profile ID is extracted from the disclosure profile management table 264 based on the disclosure restriction ID, and then a user ID and this profile ID are retrieved from the profile management table 251. A profile body (hereinafter referred to as a restriction profile) is extracted based on the above.

  Further, the profile body is extracted from the profile management table 251 based on the profile ID and user ID of the profile candidate, and the similarity with the restriction profile is calculated. It should be noted that the existing method is also used for calculating the similarity.

  A profile whose similarity exceeds a threshold specified in advance in the system is regarded as a disclosure restriction, and is excluded from profile candidates.

  The user profile disclosure control unit 260 performs the above procedure for all users, and transmits the remaining profile candidates to the user profile user terminal 600.

[Buy brokerage]
Next, a procedure for performing an EC site mediation service using a user profile stored in the network storage will be described.

[Initial registration]
In the brokerage management unit 310, the EC site 700 that performs brokering is registered in advance in the broker management table 312 shown in FIG. In the mediator management table 312, the mediator ID uniquely identifies the EC site 700 that mediates the system, and the industry ID is registered in the industry management table 265. Select the type of industry to which they belong.

  Further, the sales brokerage management unit 310 uses the user profile disclosure control unit 260 to extract the above-described disclosed user profile for each combination of the storage service user and the mediator registered in the mediator management table. Then, the mediation profile management table 311 shown in FIG. 10 is created.

  The mediator ID is an identifier of the mediator registered in the mediator management table 312, the user ID is the identifier of the storage service user, and the profile keyword is the profile that can be disclosed extracted by the user profile disclosure control unit 260 by the means described above. This is extracted from the profile keyword management table 261 using the ID.

[Intermediary processing]
When a storage service user uses this brokerage service to search for a product that suits his / her preference, the storage service user terminal 500 is first used to request the trade brokerage management unit 310 to present the product. The sales mediation management unit 310 uses the mediation profile management table 311 to extract a keyword representing the user profile.

  Since general brokerage EC sites have a function of extracting products suitable for the user based on keywords, products are extracted for each of these keywords from the brokerage service EC site 700, and an HTML file is extracted from the product list. Is transmitted to the storage service user terminal 500.

  Next, when the storage service user places an order from the EC site 700 corresponding to the mediation service using this product list, the mediation fee is paid from the EC site 700 to the network storage center 10. The information is stored in a user brokerage fee management table 321 as shown in FIG. 12 held by the storage service user management unit 120. In the user brokerage fee management table 321, the user ID is the user identifier, which is the same as that used in the profile management table 251, and the total brokerage fee is paid from the brokerage service compatible EC site 700 by this user order. This is the sum of brokerage fees.

  According to the above embodiment, the storage service user can control the disclosure destination of his / her profile without restricting disclosure for each individual file.

  In addition, the network storage center 10 can individually return a part of the received brokerage fee to the user, which makes it easier for the storage service user to find a product that suits his / her preference. As a result, the usage fee for this service can be reduced.

1 is a configuration diagram of a network storage system. Structure diagram of the profile. The figure which shows an example of a profile management table. The figure which shows a profile keyword management table. The figure which shows an example of a disclosure restriction management table. The figure which shows an example of a disclosure keyword management table. The figure which shows an example of a disclosure profile management table. The figure which shows an example of an industry management table. The figure which shows an example of a user profile user management table | surface. The figure which shows an example of a mediation profile management table. The figure which shows an example of a mediation management table. The figure which shows an example of a user mediation charge management table.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Network storage center 100 Network storage server 110 Storage management part 120 Storage service user management part 130 Access history management part 200 User profile management server 210 Image | video analysis part 220 Image analysis part 230 Text analysis part 240 User profile analysis part 250 User profile accumulation | storage Unit 260 User profile disclosure control unit 300 Mediation server 310 Trading mediation management unit 400 Network 500 Storage service user terminal 600 User profile user terminal 700 Mediation service compatible EC site 251 Profile management table 261 Profile keyword management table 262 Disclosure restriction management table 263 Disclosure Keyword Management Table 264 Disclosure Profile Management Table 265 Industry Management Table 26 User profile user management table 311 mediating profile management table 312 brokerage management table 321 User commission fee management table 710 the user profile 720 content profile 730 files

Claims (10)

A storage management device that receives and records a file from a user terminal via a network, creates a user profile from the file, and manages disclosure of the user profile,
A storage management unit that receives and records a file from a user terminal, and transmits the file in response to a request from the user terminal;
A file analysis unit that extracts a keyword from the file to be recorded to create a content profile;
A user profile analysis unit that creates a user profile based on an access history of the user terminal with respect to the content profile and the file to be recorded;
And a user profile disclosure management unit that manages the disclosure of the user profile for each user. The profile disclosure management unit inputs the keyword or the content profile as disclosure restriction information about the user profile,
The storage management apparatus according to claim 1, wherein disclosure of the keyword or a user profile corresponding to the content profile is restricted. The profile disclosure management unit inputs the keyword or the content profile as the disclosure restriction information for each type of the one using the user profile,
The storage management apparatus according to claim 1, wherein disclosure of the keyword or the user profile corresponding to the content profile is restricted for each type. The storage management device is connected to a user profile user terminal,
A user profile disclosure request is received from the user profile user terminal, and the user profile user terminal receives a user profile other than the user profile corresponding to the keyword or the content profile corresponding to the type to which the user profile user terminal corresponds. The storage management apparatus according to claim 3, further comprising a sales mediation management unit that transmits to a terminal. The storage management device is connected to the brokerage service EC site,
A product purchase request is received from the user terminal, and a user profile other than the user profile corresponding to the keyword or the content profile corresponding to the type corresponding to the brokerage service EC site is transmitted to the brokerage service EC site. , Receiving a product list corresponding to the transmitted user profile, transmitting the product list to the user terminal,
4. The storage management apparatus according to claim 3, further comprising a sales brokerage management unit that manages the amount of brokerage fee paid from the brokerage service EC site. A user profile management method in a storage management device that receives and records a file from a user terminal via a network, creates a user profile from the file, and manages disclosure of the user profile,
A storage management step in which the storage management unit receives and records a file from the user terminal, and transmits the file in response to a request from the user terminal;
A file analysis step in which a file analysis unit extracts a keyword from the recorded file to create a content profile;
A user profile analysis step in which a user profile analysis unit creates a user profile based on an access history of a user terminal with respect to the content profile and the file to be recorded;
A user profile management method comprising: a user profile disclosure management unit that manages the disclosure of the user profile for each user. In the profile disclosure management step, the keyword or the content profile is input as disclosure restriction information about the user profile,
7. The user profile management method according to claim 6, wherein disclosure of the keyword or a user profile corresponding to the content profile is restricted. The profile disclosure management step inputs the keyword or the content profile as the disclosure restriction information for each type of the one using the user profile,
7. The user profile management method according to claim 6, wherein disclosure of the user profile corresponding to the keyword or the content profile is restricted for each type. The storage management device is connected to a user profile user terminal,
The sales mediation management unit receives a user profile disclosure request from the user profile user terminal, and the user profile user terminal selects a user profile other than the user profile corresponding to the keyword or the content profile corresponding to the type. 9. The user profile management method according to claim 8, further comprising a sales mediation management step of transmitting to the user profile user terminal. The storage management device is connected to a brokerage service compatible EC site,
The brokerage management unit receives a product purchase request from the user terminal, and the user profile other than the user profile corresponding to the keyword or the content profile corresponding to the type corresponding to the brokerage service EC site corresponds to the brokerage service Sending to the EC site, receiving a product list corresponding to the transmitted user profile, sending the product list to the user terminal,
9. The user profile management method according to claim 8, further comprising a sales brokerage management step of managing an amount of brokerage fee paid from the brokerage service compatible EC site.

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