JP2015018411A - User management system, user management method, and user management program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely determine a relationship between users.SOLUTION: A user management system comprises: a query extraction unit which extracts a query from a message transmitted between a reference user and a partner user; a search unit which acquires additional information corresponding to the query by searching a predetermined database; a generation unit which generates user information indicating a degree of sympathy between the reference user and the partner user for the additional information, on the basis of a transmission direction of the message and the additional information; and a storage unit which stores the user information in a storage unit.

Description

  One aspect of the present invention relates to a system, method, and program for managing user information.

  Conventionally, a technique for identifying a relationship between users is known. For example, a social graph indicating a connection or correlation between users is one of them. In relation to this, Patent Document 1 below describes a relationship creation device that generates a social graph indicating a relationship between users based on messages exchanged between the users. This apparatus specifies the relationship between the users based on the attached words extracted by morphological analysis of messages between the users and the frequency of use of the words.

JP 2013-8335 A

  The relationship between users is generally complicated in combination with the interests and concerns of each user. However, the social graph generated by the device described in Patent Document 1 can only represent connections between users, and therefore can only capture one aspect of human relationships. Therefore, it is desired to specify the relationship between users in more detail.

  A user management system according to an aspect of the present invention includes a query extraction unit that extracts a query from a message transmitted between a reference user and a counterpart user, and additional information corresponding to the query by searching a predetermined database. Based on the message transmission direction and additional information, a generating unit that generates user information indicating the co-sensitivity between the reference user and the other user for the additional information, and a user information storage unit And a storage unit for storing the data.

  A user management method according to an aspect of the present invention is a user management method executed by a user management system, a query extraction step of extracting a query from a message transmitted between a reference user and a counterpart user, and a predetermined By searching the database, the search step of acquiring additional information corresponding to the query, and the co-sensitivity between the reference user and the partner user for the additional information based on the transmission direction of the message and the additional information are shown. A generation step of generating user information and a storage step of storing the user information in the storage unit are included.

  A user management program according to an aspect of the present invention includes a query extraction unit that extracts a query from a message transmitted between a reference user and a counterpart user, and additional information corresponding to the query by searching a predetermined database. Based on the message transmission direction and additional information, a generating unit that generates user information indicating the co-sensitivity between the reference user and the other user for the additional information, and a user information storage unit The computer system is caused to execute a storage unit stored in the computer.

  In such an aspect, a query is acquired from a message transmitted between users, and additional information corresponding to the query is retrieved from a database. Then, based on the transmission direction of the message and the additional information, user information indicating the mutual sensitivity between users for the additional information is generated and recorded. In this way, if the co-sensitivity between two users with respect to some information is obtained, it is possible to obtain which information has a deep relationship with which user, so that the relationship between users can be specified in more detail.

  In the user management system according to another aspect, the query extraction unit may extract the meta information of the message attachment file or the URL described in the message body as a query.

  In the user management system according to another aspect, the generation unit sympathizes with the transmission record indicating that the reference user has transmitted a message to the other user and the reception record indicating that the reference user has received the message from the other user. User information indicating the degree may be generated.

  The user management system according to another aspect further includes a display control unit that determines a display order when displaying a transmission destination candidate of a new message generated by the reference user based on user information in the storage unit, The control unit extracts a query from the new message, the search unit searches the predetermined database to acquire additional information corresponding to the query extracted from the new message, and the display control unit The partner user corresponding to the additional information obtained using the message is displayed higher than the partner user not corresponding to the additional information, and the partner user corresponding to the additional information is higher in the partner user who has higher co-sensitivity. May be displayed.

  In the user management system according to another aspect, the transmission record is represented by the number of transmissions, the reception record is represented by the number of receptions, and the display control unit is more sensitive as the ratio between the number of transmissions and the number of receptions is closer to 1: 1. May be determined to be high.

  In the user management system according to another aspect, the transmission record is represented by the number of transmissions, the reception record is represented by the number of replies, and the display control unit determines that the higher the ratio of the number of replies to the number of transmissions, the higher the co-sensitivity. May be.

  According to one aspect of the present invention, the relationship between users can be specified in more detail.

It is a figure showing the whole user management system composition concerning an embodiment. It is a figure which shows the concept of the production | generation of the user information in embodiment. It is a figure which shows the hardware constitutions of a user terminal and a tag management server. It is a block diagram which shows the function structure of the user management system which concerns on embodiment. It is a figure which shows the example of a structure of user information. It is a flowchart which shows the user information generation process in 1st Embodiment. It is a flowchart which shows the process of the display of the transmission destination candidate in 1st and 2nd embodiment. It is a figure which shows the structure of the user management program which concerns on embodiment. It is a flowchart which shows the user information generation process in 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
First, the function and configuration of the user management system 1 according to the first embodiment will be described with reference to FIGS. The user management system 1 is a computer system that specifies and records the relationship between a sender and a receiver from a message transmitted between users. The recorded information is used for future message transmission. In the present embodiment, it is assumed that the message is an electronic mail.

  As shown in FIG. 1, the user management system 1 includes a user terminal 10, a tag management server 20, a mail server 30, and an external service 40. The user terminal 10 can communicate with each of the tag management server 20 and the mail server 30 via a communication network. The tag management server 20 can communicate with each of the mail server 30 and the external service 40 via a communication network. The specific configuration of the communication network is not limited, and may be constructed by one or both of the Internet and the LAN, for example.

  FIG. 2 shows an outline of processing for recording the relationship between users and user attributes. The user management system 1 acquires an email transmitted between users, and extracts a query from the email. Subsequently, the user management system 1 accesses the external service 40 using the query, and acquires tag information from the database (external database) 41 in the external service 40. This tag information is additional information indicating the user's interest or interest. And the user management system 1 produces | generates the user information which shows the mutual sensitivity between users with respect to tag information based on the tag information and the transmission direction of an email. The user information is stored in the user database.

  The user terminal 10 is a computer owned by the user, and a plurality of user terminals 10 exist in the user management system 1. The user terminal 10 includes an e-mail client (mailer). The type of the user terminal 10 is not limited, and may be, for example, a stationary or portable personal computer, or a portable terminal such as a high-function mobile phone (smart phone), a mobile phone, or a personal digital assistant (PDA).

  The tag management server 20 is a computer that accesses the external service 40 and acquires tag information. The tag management server 20 may be configured by a single computer or may be configured by a plurality of computers.

  The mail server 30 is a computer that transmits electronic mail from the user terminal 10 of the sender to the user terminal 10 of the receiver. Although the electronic mail can pass through one or more mail servers 30, only one mail server 30 is schematically shown in FIG.

  The external service 40 is a computer or a computer system that holds tag information itself or arbitrary information including tag information. The external service 40 includes an external database 41 that stores various information. The external service 40 is not limited as long as it can provide some information. For example, a CDDB (Compact Disc DataBase) or a search engine can function as the external service 40.

  Since the characteristic processing of the present embodiment is executed by the user terminal 10 and the tag management server 20, the user terminal 10 and the tag management server 20 will be specifically described below.

  The basic hardware configuration of the user terminal 10 and the tag management server 20 is shown in FIG. Both the user terminal 10 and the tag management server 20 include a CPU 101 that executes an operating system, application programs, and the like, a main storage unit 102 that includes a ROM and a RAM, and an auxiliary storage unit that includes a hard disk, a flash memory, and the like. 103, a communication control unit 104 including a network card or a wireless communication module, an input device 105 such as a keyboard, a mouse, and a touch panel, and an output device 106 such as a display and a speaker.

  Of course, the modules to be incorporated may differ between the user terminal 10 and the tag management server 20. For example, while the user terminal 10 includes a touch panel as the input device 105, the input device 105 of the tag management server 20 may be a keyboard and a mouse.

  Functional components of the user terminal 10 and the tag management server 20 to be described later read predetermined software on the CPU 101 or the main storage unit 102, and under the control of the CPU 101, the communication control unit 104, the input device 105, and the output This is realized by operating the device 106 and the like, and reading and writing data in the main storage unit 102 or the auxiliary storage unit 103. Data and a database necessary for processing are stored in the main storage unit 102 or the auxiliary storage unit 103.

  As shown in FIG. 4, the user terminal 10 includes a query extraction unit 11, a database generation unit (generation unit and storage unit) 12, a user database (storage unit) 13, and a display control unit 14 as functional components. . These functional elements may be provided as a plug-in to a mailer, for example. Hereinafter, each functional element will be described assuming that the user terminal 10 is a terminal of one user who is a reference user.

  The query extraction unit 11 is a functional element that extracts a query from an electronic mail. The query extraction unit 11 determines whether or not there is an attached file of an electronic mail stored in a mailbox (inbox or transmission tray). If an attached file exists, the query extraction unit 11 extracts meta information from the attached file. The type of attached file and the specific content of the meta information are not limited. For example, if a music file is attached, the query extraction unit 11 extracts a song name, an artist name, and the like as meta information. If a document file is attached, the query extraction unit 11 extracts the application program name, creator, embedded file name, etc. related to the file as meta information. Then, the query extraction unit 11 transmits the extracted meta information as a query to the tag management server 20.

  If no file is attached to the e-mail, the query extraction unit 11 ends the process without transmitting the query to the tag management server 20. In this case, subsequent processing is not performed.

  The database generation unit 12 is a functional element that generates user information based on the transmission direction of electronic mail and tag information and stores the user information in the user database 13.

In the present embodiment, each record of user information includes the following items.
-Counter user identifier-Tag information-Number of transmissions (transmission record)
-Number of receptions (reception record)

  The partner user is a transmission destination of the email transmitted by the reference user or a user who is a transmission source of the email received by the reference user.

  The number of transmissions is the number of times the reference user has sent an email to the other user, and the number of receptions is the number of times the reference user has received an email from the other user. In the present embodiment, the number of transmissions and the number of receptions are used as indices indicating the co-sensitivity between the reference user and the other user. That is, if the number of transmissions and the number of receptions of a certain tag information are close, it can be said that the tag information is highly likely to be sympathetic with the reference user and the other user. On the other hand, if the difference between the number of transmissions and the number of receptions is large, it can be said that there is a difference between the reference user and the other user in the degree of interest or interest in the tag information.

  An example of the user database 13 and user information is shown in FIG. Since a plurality of tag information can be extracted for one partner user, each record is identified by a combination of the partner user and the tag.

  The database generation unit 12 identifies the other user from the email processed by the query extraction unit 11. When the query extraction unit 11 processes the e-mail in the inbox, the database generation unit 12 identifies the sender of the e-mail as a partner user, and the query extraction unit 11 processes the e-mail in the transmission tray. In that case, the transmission destination (recipient) of the e-mail is specified as the other user. Further, the database generation unit 12 receives tag information from the tag management server 20.

  Subsequently, the database generation unit 12 stores user information corresponding to the identified partner user and the received tag information in the user database 13. When a record corresponding to the partner user and tag information already exists, the database generation unit 12 adds 1 to the number of times of transmission or reception of the record depending on whether the partner user is a sender or a receiver. . If a record corresponding to the partner user and tag information does not yet exist, the database generation unit 12 newly creates the record and registers it in the database. If the other user is a sender, the transmission count and reception count of the new record are 0 and 1, respectively. If the other user is a receiver, the transmission count and reception count are 1 and 0, respectively.

  The display control unit 14 is a functional element that determines the display order of new e-mail transmission destination candidates generated by the reference user. When the reference user performs an operation for displaying the candidate in order to determine the destination of the e-mail, the display control unit 14 extracts a query in the same manner as the processing in the query extraction unit 11. That is, the display control unit 14 determines whether or not there is an attached file of the e-mail before transmission. If an attached file exists, the display control unit 14 extracts meta information from the attached file, and transmits the meta information to the tag management server 20 as a query.

  Thereafter, the display control unit 14 receives the tag information sent from the tag management server 20. And the display control part 14 searches the user database 13, and determines whether the other party user corresponding to the tag information exists. When one or more users can be extracted, the display control unit 14 obtains a ratio between the number of transmissions and the number of receptions for each extracted counterpart user. Then, the display control unit 14 displays the counterpart user corresponding to the tag information (the user who can be extracted) higher than the counterpart user not corresponding to the tag information (the user who could not be extracted), and the user corresponding to the tag information. For the user, the closer the ratio is to 1: 1, the higher the display.

  In the present embodiment, the display control unit 14 determines that the partner user whose ratio between the number of transmissions and the number of receptions is closer to 1: 1 has higher sensitivity with the reference user. This is because it is expected that users who communicate with each other to the same extent with respect to a certain piece of tag information are more likely to be interested in the e-mail to be transmitted.

  For example, it is assumed that the user database 13 stores the following records. Here, each record is defined as {other user, tag information, number of transmissions, number of receptions}. Further, it is assumed that tag information “hip hop” is obtained from an attached file of an e-mail to be transmitted.

{User B, Hip Hop, 10, 2}
{User C, jazz 4, 4, 4}
{User D, Hip Hop, 7, 5}
{User E, Hip Hop, 4, 6}

  In this case, the display control unit 14 determines to display the users B, D, and E higher than the user C. Next, the ratios for users B, D, and E are obtained as follows.

User B: 10: 2 = 5: 1
User D: 7: 5 = 1.4: 1
User E: 4: 6 = 1: 1.5

  Therefore, the display control unit 14 displays the transmission destination candidates so that the display order is user D, user E, user B, and user C.

  When no file is attached to the e-mail, the display control unit 14 displays the transmission destination candidates in an arbitrary order without transmitting the query (meta information) to the tag management server 20.

  Next, the tag management server 20 will be described. As shown in FIG. 4, the tag management server 20 includes a search unit 21 as a functional component.

  The search unit 21 is a functional element that searches the external service 40 and acquires tag information corresponding to the query. The search unit 21 receives the meta information sent from the user terminal 10 and searches the external service 40 using the meta information. Then, the search unit 21 transmits the search result as it is to the user terminal 10 as tag information, or transmits the tag information extracted from the search result to the user terminal 10.

  For example, if a song name and artist name extracted from a music file are received as a query, the search unit 21 may search a CDDB (Compact Disc DataBase) to acquire the genre of music as tag information. When the query includes a plurality of meta information, the search unit 21 may acquire tag information for each piece of meta information, or may acquire tag information that satisfies all of the plurality of meta information. The type of tag information is not limited, and the search unit 21 may acquire any type of information as tag information.

  Next, the operation of the user management system 1 will be described with reference to FIGS. 6 and 7, and the user management method according to the present embodiment will be described.

  FIG. 6 shows a process for storing user information. When the mailer receives or transmits an e-mail at the user terminal 10 (step S11), the query extraction unit 11 acquires meta information from the attached file (step S12, query extraction step), and sends the meta information to the tag management server 20. Transmit (step S13). In the tag management server 20, the search unit 21 acquires tag information corresponding to the meta information from the external service 40 (step S14, search step), and transmits the tag information to the user terminal 10 (step S15). In the user terminal 10, the database generation unit 12 extracts the sender or receiver of the e-mail as a partner user (step S16), and registers or updates user information based on the partner user and the received tag information (step S16). S17, generation step and storage step).

  FIG. 7 shows a process for displaying transmission destination candidates. When the display control unit 14 acquires the meta information from the attached file of the new e-mail to be transmitted (step S21), the display control unit 14 acquires the tag information from the tag management server 20 using the meta information (step S22). . In step S22, the same processing as in steps S13 to S15 is executed. Subsequently, the display control unit 14 determines the display order of the transmission destination candidates based on the tag information and the user information (step S23). Specifically, the display control unit 14 positions the user corresponding to the tag information higher than the user not corresponding to the tag information, and the ratio between the number of transmissions and the number of receptions is 1 for the user corresponding to the tag information. The user closer to 1 is positioned higher. And the display control part 14 displays a transmission destination candidate in the determined order (step S24).

  Next, a user management program P for causing a computer system including one or more computers to function as the user management system 1 will be described with reference to FIG. The user management program P includes a client program P1 for causing the computer to function as the user terminal 10 and a server program P2 for causing the computer to function as the tag management server 20.

  The client program P1 includes a main module P10, a query extraction module P11, a database generation module P12, a user storage module P13, and a display control module P14. The main module P10 is a part that comprehensively controls the processing on the terminal side. The functions realized by executing the query extraction module P11, the database generation module P12, the user storage module P13, and the display control module P14 are the query extraction unit 11, the database generation unit 12, the user database 13, and the display described above, respectively. The function is the same as that of the control unit 14.

  The server program P2 includes a main module P20 and a search module P21. The main module P20 is a part that comprehensively controls server-side processing. The function realized by executing the search module P21 is the same as the function of the search unit 21.

  Each of the client program P1 and the server program P2 may be provided after being fixedly recorded on a tangible recording medium such as a CD-ROM, a DVD-ROM, or a semiconductor memory. The programs P1 and P2 may be provided via a communication network as data signals superimposed on a carrier wave.

  As described above, according to the present embodiment, meta information is acquired from an e-mail transmitted between users, and tag information corresponding to the meta information is retrieved from the external service 40. Then, based on the transmission direction of the e-mail and the tag information, user information indicating the co-sensitivity between the users for the tag information is generated and recorded. In this way, if the co-sensitivity between two users with respect to some information is obtained, it is possible to obtain which information has a deep relationship with which user, so that the relationship between users can be specified in more detail.

  In the user information, the co-sensitivity shown in the transmission record and the reception record is set for the combination of the partner user and the tag information, so it is possible to record the relationship with the partner user by the number of tag information. become. This means that the relationship between the reference user and the other user can be viewed from a plurality of viewpoints. For example, it is possible to know from the user information that the user A and the user B have a common hobby regarding music and have strong business connections.

  In the present embodiment, the co-sensitivity is defined by the number of times each e-mail is transmitted, that is, the number of times of transmission and the number of times of reception. Expressed as a ratio. Therefore, it is possible to determine in detail whether or not the interests or interests between the two users are common, as compared with a case where the determination is simply based on whether or not there is transmission or reception.

  In this embodiment, when a user tries to send a new e-mail, the display order of the transmission destination candidates is determined based on user information indicating the co-sensitivity between the reference user and the other user with respect to the tag information. Therefore, the user can know in advance who is expected to be interested in the information that he is going to send (this partner will be displayed at the top), and send an email to that partner. The probability of getting sympathy increases.

  In the present embodiment, tag information is acquired using meta information of an attached file. An attachment file such as a music file, an image file, or a document file easily expresses the user's interest or interest. Therefore, tag information indicating the user's interest or interest can be easily acquired by using the meta information as a query.

  In the present embodiment, the display control unit 14 may determine the display order of the transmission destination candidates based on another criterion.

  As an example, the display control unit 14 divides users into a plurality of groups on the basis of the smaller number (minimum number) of the number of transmissions and the number of receptions, and then sets the number of transmissions and the number of receptions for each group. You may arrange a user based on a ratio.

  For example, it is assumed that the user database 13 stores the following record, and tag information “hip hop” is obtained from an attached file of an e-mail to be transmitted. The boundary value of the minimum number of times that is a grouping criterion is 3.

{User B, Hip Hop, 10, 2}
{User C, hip-hop, 10, 5}
{User D, hip hop, 1, 1}
{User E, Hip Hop, 4, 6}

  In this case, since the minimum number of users B to E is 2, 5, 1, and 4, respectively, the display control unit 14 generates a group Ga composed of users C and E and a group Gb composed of users B and D. Subsequently, the display control unit 14 arranges the user E and the user C in the order of the group Ga, and arranges the user D and the user B in the order of the group Gb. Therefore, the display control unit 14 finally displays transmission destination candidates in the order of user E, user C, user D, and user B.

  As another example, the display control unit 14 divides users into a plurality of groups with the sum of the number of transmissions and the number of receptions (total number of communication) as a boundary, and the ratio between the number of transmissions and the number of receptions for each group. You may arrange a user based on.

  For example, it is assumed that the user database 13 stores the following record, and tag information “hip hop” is obtained from an attached file of an e-mail to be transmitted. The boundary value of the total number of communications that becomes the grouping standard is 10.

{User B, Hip Hop, 10, 2}
{User C, hip-hop, 10, 5}
{User D, hip hop, 1, 1}
{User E, Hip Hop, 4, 6}

  In this case, since the total communication times of the users B to E are 12, 15, 2, and 10, respectively, the display control unit 14 generates a group Ga that includes the users B, C, and E and a group Gb that includes only the user D. . Subsequently, the display control unit 14 arranges the user E, the user C, and the user B in order in the group Ga. Therefore, the display control unit 14 finally displays transmission destination candidates in the order of user E, user C, user B, and user D.

  In each of the above examples, the display control unit 14 refers to only the record of transmission or reception that has occurred within the most recent predetermined period (for example, the past month), the ratio between the number of transmissions and the number of receptions, and the minimum number of times. Alternatively, the total number of communications may be set for each partner user. In this case, the more recent partner user with higher co-sensitivity is displayed at the top as the destination candidate. However, such processing is based on the premise that the database generation unit 12 generates user information including the date and time of occurrence of each mail transmission and stores it in the user database 13.

(Second Embodiment)
In the first embodiment, meta information is handled as a query. However, the user management system 1 may treat a URL (Uniform Resource Locator) in an e-mail transmitted or received as a query. In the present embodiment, a method for acquiring tag information using the URL is shown. Below, a different point from 1st Embodiment is demonstrated especially and description is abbreviate | omitted about another point.

  The query extraction unit 11 determines whether or not a URL is described in the body of the e-mail. If the URL is described in the text, the query extraction unit 11 extracts the URL, and transmits the URL to the tag management server 20 as a query. If the URL is not described in the text, the query extraction unit 11 ends the process without transmitting the query to the tag management server 20. In this case, subsequent processing is not performed.

  The function of the database generation unit 12 is the same as that of the first embodiment.

  When the user performs an operation for displaying the transmission destination candidate, the display control unit 14 extracts the URL in the same manner as the processing in the query extraction unit 11. That is, the display control unit 14 determines whether or not a URL is described in the text of a new e-mail before transmission. If the URL is described in the text, tag management is performed using the URL as a query. Send to server 20. Thereafter, the display control unit 14 receives the tag information sent from the tag management server 20, and displays the destination candidate by executing the same processing as in the first embodiment. If the URL is not described in the text, the display control unit 14 displays the transmission destination candidates in an arbitrary order without transmitting the query to the tag management server 20.

  The search unit 21 acquires tag information corresponding to the URL from the external service 40. For example, if the URL of a web page of a specific restaurant is received, the search unit 21 may access the web page and acquire the genre of cooking, the area where the restaurant is located, and the like as tag information. Of course, the type of tag information is not limited, and the search unit 21 may acquire any type of information as tag information.

  Next, the operation of the user management system 1 and the user management method in this embodiment will be described.

  FIG. 9 shows a process for storing user information. When the mailer receives or transmits the e-mail at the user terminal 10 (step S31), the query extraction unit 11 acquires the URL from the body (step S32, query extraction step), and transmits the URL to the tag management server 20. (Step S33). In the tag management server 20, the search unit 21 searches the external service 40, acquires tag information from the web page corresponding to the URL (step S34, search step), and transmits the tag information to the user terminal 10 ( Step S35). In the user terminal 10, the database generation unit 12 extracts the sender or receiver of the e-mail as a partner user (step S36), and registers or updates the user information based on the partner user and the received tag information (step S36). S37, generation step and storage step). The processes in steps S36 and S37 are the same as the processes in steps S16 and S17 in the first embodiment.

  The processing for displaying the transmission destination candidate is different only in using meta information or URL, and is basically the same as in the first embodiment, and thus the description thereof is omitted.

  The difference between the second embodiment described above and the first embodiment is basically that information used as a query is not meta information but a URL. Therefore, the same effect as that of the first embodiment can be obtained by the second embodiment.

  In this embodiment, tag information is acquired using a URL. The user's interest or interest is likely to appear on the web page indicated by this URL. Therefore, tag information indicating the user's interest or interest can be easily acquired by using the URL as a query.

  The present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above embodiment. The present invention can be variously modified without departing from the gist thereof.

  In the above embodiment, the number of times of transmission and the number of times of reception are used as the items of user information, but a flag indicating only the presence or absence of past transmission and reception may be used as the transmission record and reception record. In this modification, each record of user information includes the following items.

-Counter user identifier-Tag information-Transmission flag-Reception flag

  The transmission flag is “1” if an electronic mail related to the tag information has been transmitted to the other user even once, and “0” if such an electronic mail has never been transmitted. The reception flag is “1” if an e-mail related to the tag information has been received from the other user even once, and “0” if such an e-mail has never been received.

  In this way, when the transmission and reception histories are indicated by binary values rather than the number of times, the display control unit 14 transmits based on whether the other user corresponds to the tag information and the combination of the transmission flag and the reception flag. The display order of the destination candidates can be determined. Specifically, the display control unit 14 displays the user corresponding to the tag information obtained from the e-mail scheduled to be transmitted at a higher rank than the user not corresponding to the tag information, and the user corresponding to the tag information. Displays a user whose reception flag is “1” higher than a user whose reception flag is “0”. This is because a user who has sent an e-mail regarding the tag information in the past is expected to be more likely to be interested in the e-mail to be transmitted than a user who is not.

  For example, it is assumed that the user database 13 stores the following records. Here, each record is defined as {other user, tag information, transmission flag, reception flag}. Further, it is assumed that tag information “hip hop” is obtained from an attached file of an e-mail to be transmitted.

{User B, Hip Hop, 1, 0}
{User C, jazz, 1, 1}
{User D, hip hop, 1, 1}
{User E, Hip Hop, 0, 1}

  In this case, the display control unit 14 determines that the users B, D, and E are displayed higher than the user C, and the users D and E are displayed higher than the user B. The display order among the users D and E may be arbitrarily determined. For example, the display control unit 14 may display the user D whose transmission flag and reception flag are both “1” at the top.

  As a further modification of user information, the number of transmissions and the number of replies may be used as transmission records and reception records. Here, the number of replies is the number of replies to the electronic mail when the electronic mail related to the tag information is transmitted to the other user.

-Counter user identifier-Tag information-Number of transmissions-Number of replies

  In this case, when receiving the reply mail, the database generation unit 12 specifies the sent mail quoted in the reply mail, and adds 1 to the number of reply times of the record corresponding to the sent mail. In addition, the display control unit 14 determines the display order of the transmission destination candidates based on whether or not the partner user corresponds to the tag information and a reply rate that is a ratio of the number of replies to the number of transmissions. Specifically, the display control unit 14 displays the user corresponding to the tag information obtained from the e-mail scheduled to be transmitted at a higher rank than the user not corresponding to the tag information, and the user corresponding to the tag information. Is displayed at the top of the user with a higher reply rate.

  In this modification, the display control unit 14 determines that the partner user with a higher reply rate has higher co-sensitivity with the reference user. This is because a user who frequently responds to an email related to the tag information is expected to have a higher probability of being interested in the email to be sent.

  For example, it is assumed that the user database 13 stores the following records. Here, each record is defined as {other user, tag information, number of transmissions, number of replies}. Further, it is assumed that tag information “hip hop” is obtained from an attached file of an e-mail to be transmitted.

{User B, Hip Hop, 10, 2}
{User C, jazz, 1, 1}
{User D, Hip Hop, 8, 4}
{User E, Hip Hop, 5, 3}

  In this case, the display control unit 14 determines to display the users B, D, and E higher than the user C. Next, the reply rates for users B, D, and E are as follows.

User B: 2/10 = 0.2
User D: 4/8 = 0.5
User E: 3/5 = 0.6

  Therefore, the display control unit 14 displays the transmission destination candidates so that the display order is user E, user D, user B, and user C.

  When using a reply mail, the database generation unit 12 analyzes the body of the reply mail to estimate whether the other user has a positive impression or a negative impression of the sent mail. May be. When it is estimated that the other user has a positive impression, the database generation unit 12 adds 1 to the number of replies of the record corresponding to the transmitted mail quoted in the reply mail. On the other hand, when it is estimated that the other user has a negative impression, the database generation unit 12 subtracts 1 from the reply count of the record corresponding to the transmitted mail quoted in the reply mail. Therefore, in this case, the number of user information replies can be a negative value. However, the process of determining the display order by the display control unit 14 is the same as described above, and a user with a higher reply rate obtained by dividing the number of replies by the number of replies may be displayed at the top.

  The device on which each functional element is mounted is not limited. For example, each functional element of the user terminal 10 may be implemented in the mail server 30. Since the mail server 30 manages the mailboxes of a plurality of users, in the case of this modification, a user database as shown in FIG. 5 is generated for each individual user (reference user).

  In the above embodiment, the message is an electronic mail, but the type of the message is not limited. For example, the present invention may be applied to messages exchanged on a social networking service (SNS).

  In the above embodiment, the user information is used to determine the display order of the transmission destination candidates. However, the purpose of using the user information is arbitrary. Therefore, the display control unit is not essential in the user management system.

  DESCRIPTION OF SYMBOLS 1 ... User management system, 10 ... User terminal, 11 ... Query extraction part, 12 ... Database production | generation part, 13 ... User database, 14 ... Display control part, 20 ... Tag management server, 21 ... Search part, 30 ... Mail server, 40 ... external service, 41 ... external database, P ... user management program, P1 ... client program, P10 ... main module, P11 ... query extraction module, P12 ... database generation module, P13 ... user storage module, P14 ... display control module, P2 ... server program, P20 ... main module, P21 ... search module.

Claims (8)

A query extractor for extracting a query from a message transmitted between the reference user and the other user;
A search unit for acquiring additional information corresponding to the query by searching a predetermined database;
Based on the transmission direction of the message and the additional information, a generating unit that generates user information indicating co-sensitivity between the reference user and the counterpart user with respect to the additional information;
A user management system comprising: a storage unit that stores the user information in a storage unit. The query extraction unit extracts the meta information of the attached file of the message or the URL described in the body of the message as the query;
The user management system according to claim 1. The generation unit indicates the co-sensitivity by a transmission record indicating that the reference user has transmitted a message to the counterpart user and a reception record indicating that the reference user has received a message from the counterpart user. Generate user information,
The user management system according to claim 1 or 2. Based on the user information in the storage unit, further comprising a display control unit for determining a display order when displaying a destination candidate of a new message generated by the reference user,
The display control unit extracts a query from the new message;
The search unit searches the predetermined database to obtain additional information corresponding to the query extracted from the new message,
The display control unit displays the counterpart user corresponding to the additional information obtained using the new message higher than the counterpart user not corresponding to the additional information, and corresponds to the additional information. In the partner user, the partner user with higher co-sensitivity is displayed at the top,
The user management system according to claim 3. The transmission record is represented by the number of transmissions, the reception record is represented by the number of receptions,
The display control unit determines that the co-sensitivity is higher as the ratio between the number of transmissions and the number of receptions is closer to 1: 1.
The user management system according to claim 4. The transmission record is represented by the number of transmissions, the reception record is represented by the number of replies,
The display control unit determines that the co-sensitivity is higher as the ratio of the number of replies to the number of transmissions is higher.
The user management system according to claim 4. A user management method executed by a user management system,
A query extraction step for extracting a query from a message transmitted between a reference user and a partner user;
A search step of acquiring additional information corresponding to the query by searching a predetermined database;
Based on the transmission direction of the message and the additional information, a generating step for generating user information indicating the co-sensitivity between the reference user and the counterpart user with respect to the additional information;
A user management method including a storing step of storing the user information in a storage unit. A query extractor for extracting a query from a message transmitted between the reference user and the other user;
A search unit for acquiring additional information corresponding to the query by searching a predetermined database;
Based on the transmission direction of the message and the additional information, a generating unit that generates user information indicating co-sensitivity between the reference user and the counterpart user with respect to the additional information;
A user management program that causes a computer system to execute a storage unit that stores the user information in a storage unit.

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