JP5855513B2 - RECOMMENDATION LIST PROVIDING DEVICE AND RECOMMENDATION LIST PROVIDING METHOD - Google Patents

Description

  The present invention relates to a recommendation list providing apparatus and a recommendation list providing method for providing a recommendation list according to a content history in a user's mobile terminal.

  Conventionally, a system that provides content information suitable for a user's preference according to a content history in the user's mobile terminal has been proposed (see Patent Document 1 below). In such a system, each user is assigned to a user group (hereinafter referred to as “cluster” in this case) provided for each tendency of the content history (that is, user preference), and the content history (user's Generally, recommendation information suitable for (preference) is provided.

  On the other hand, because trends and user preferences change day by day, it is not preferable if the assignment of users to a cluster is fixed, and it is targeted at all users based on the content history at that point in a predetermined cycle. A process of reassigning to a cluster (hereinafter referred to as “clustering process”) is executed. However, the clustering process is very heavy and requires a lot of processing time, so it is actually difficult to execute it frequently.

JP 2009-252177 A

  In the real world, a transfer succession occurs (for example, the user of the mobile terminal changes with the same terminal ID) in which the mobile terminal is transferred from the parent to the child and the transferee (for example, the child) continues to use the mobile terminal. To do. If the above clustering process is executed every time transfer succession occurs, it is considered that an appropriate recommendation list based on the content history (preference) of the transferee (for example, a child) is provided. However, as described above, since the clustering process is not actually executed frequently, immediately after the transfer succession occurs, the transferer (for example, the child) is based on the content history (preference) of the transferor (for example, the parent). There is a risk that a recommendation list is provided.

  The present invention has been made in order to solve such a problem. When transfer succession occurs, the above inconvenience (content history of the transferor (preference) for the transferee does not have to be executed). It is an object to provide an appropriate recommendation list by avoiding the inconvenience that a recommendation list based on) is provided.

  A recommendation list providing apparatus according to an aspect of the present invention is a recommendation list providing apparatus that makes a user belong to one of a plurality of clusters according to a content history, and provides a recommendation list for the belonging user for each cluster. A user management unit that manages user information of a mobile terminal and detects that a user of a mobile terminal has been changed to another user, a terminal ID unique to each mobile terminal, and a user ID unique to each user ID correspondence table storing correspondence information stored therein, generating a new user ID associated with the terminal ID of the mobile terminal that has been changed by the user, and correspondence information between the terminal ID and the new user ID An ID correspondence table management unit, a user ID of a representative user representing a cluster, and a user ID of a user belonging to the cluster, The cluster correspondence table storing correspondence information is managed, and in the cluster correspondence table, the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed is deleted, and a new user ID is determined in advance as an affiliated user. A correspondence table associated with the user ID of the representative user, and a cluster correspondence table management unit for converting the user ID of the affiliated user in each correspondence information stored in the cluster correspondence table into a corresponding terminal ID; The recommendation list DB that stores correspondence information between the representative user of the cluster and the recommendation list is managed, the terminal ID of the acquisition request source is specified from the recommendation list acquisition request, and is associated with the terminal ID of the acquisition request source in the cluster correspondence table. The recommended list of the representative user is identified from the recommendation list DB, and the recommended list is selected. Characterized in that it comprises a recommendation list providing unit for providing the door to requesting the acquisition, the.

  In addition, the recommendation list providing method according to one aspect of the present invention provides a recommendation list that allows a user to belong to one of a plurality of clusters according to a content history, and provides a recommendation list for the belonging user for each cluster. A method for providing a recommendation list executed by an apparatus, wherein a user management unit that manages user information of a mobile terminal detects that a user of a mobile terminal is changed to another user, and each mobile terminal The ID correspondence table management unit for managing the ID correspondence table storing the correspondence information between the terminal ID unique to each user and the user ID unique to each user is newly associated with the terminal ID of the mobile terminal whose user has been changed. Generating a user ID, adding correspondence information between the terminal ID and the new user ID to the ID correspondence table, and representing the cluster A cluster correspondence table management unit that manages a cluster correspondence table that stores correspondence information between a user ID of a representative user and a user ID of an affiliated user belonging to the cluster. Deleting the correspondence information related to the pre-change user ID and adding the correspondence information associated with the user ID of a predetermined representative user with the new user ID as the affiliated user, and the cluster correspondence table management unit Manages the recommendation list DB storing the correspondence information between the representative user of each cluster and the recommendation list, and the step of converting the user ID of the affiliated user in each correspondence information stored in the cluster correspondence table into the corresponding terminal ID. The recommendation list providing unit that performs the acquisition request requesting terminal I from the recommendation list acquisition request And specifying a recommendation list of a representative user associated with the terminal ID of the acquisition request source in the cluster correspondence table from the recommendation list DB, and providing the recommendation list to the acquisition request source. Features.

  According to one aspect of the present invention as described above, when the user management unit detects that a user of a certain mobile terminal has been changed to another user, the ID correspondence table management unit detects that the user has changed the mobile A new user ID associated with the terminal ID of the terminal is generated, and correspondence information between the terminal ID and the new user ID is added to the ID correspondence table. Then, the cluster correspondence table management unit deletes the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed in the cluster correspondence table, and sets a new user ID as a belonging user and a predetermined representative. Correspondence information associated with the user ID of the user is added. Then, the cluster correspondence table management unit converts the user ID of the belonging user in each correspondence information stored in the cluster correspondence table into a corresponding terminal ID. Further, the recommendation list providing unit specifies the terminal ID of the acquisition request source from the recommendation list acquisition request, and specifies the recommendation list of the representative user associated with the terminal ID of the acquisition request source in the cluster correspondence table from the recommendation list DB. The recommendation list is provided to the acquisition request source.

  Thereby, when the user of a certain portable terminal is changed to another user (that is, when transfer of the portable terminal occurs), a new user ID is generated for the other user (new user). The new user ID is associated with a predetermined representative user ID. That is, the other user (new user) is automatically assigned to a predetermined representative user cluster. Therefore, when there is a recommendation list acquisition request from the other user (new user), a predetermined recommendation list of the representative user is provided to the other user (new user) who is the acquisition request source. The As described above, it is possible to avoid a conventional inconvenience (inconvenience in which a recommendation list based on the content history (preference) of the transferor is provided to the transferee) without performing the clustering process, and to provide an appropriate recommendation list. be able to.

  As the “predetermined representative user” with whom the cluster correspondence table management unit associates a new user ID, for example, a representative user of a user cluster having no content history may be applied.

  In the above-described aspect of the present invention, when a user of a certain mobile terminal is changed to another user (that is, when transfer of the mobile terminal occurs), each time the other user (new Since a new user ID is generated for (user), the number of user IDs increases. Therefore, as another aspect (an aspect in which the increase in the number of user IDs is suppressed), the present invention provides a new user ID for the new user when the pre-change user who is not the representative user is changed to a new user. The following aspects may be employed that do not generate.

  That is, a recommendation list providing apparatus according to another aspect of the present invention provides a recommendation list that allows a user to belong to one of a plurality of clusters according to a content history, and provides a recommendation list for the belonging user for each cluster. A providing device that manages user information of a mobile terminal, detects that a user of a mobile terminal has been changed to another user, and detects a change to another user, the user before the change is represented A user management unit for determining whether or not a user is managed, and an ID correspondence table storing correspondence information between a terminal ID unique to each mobile terminal and a user ID unique to each user, and the user before change is a representative user If it is, a new user ID associated with the terminal ID of the mobile terminal that has been changed by the user is generated, and correspondence information between the terminal ID and the new user ID is represented by the I Manages the cluster correspondence table storing correspondence information between the ID correspondence table management unit to be added to the correspondence table, the user ID of the representative user representing the cluster, and the user ID of the user belonging to the cluster, and the user before change If the user is a representative user, in the cluster correspondence table, the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed is deleted, and the user of the predetermined representative user with the new user ID as the belonging user When the correspondence information associated with the ID is added and the user before the change is not the representative user, the user ID related to the mobile terminal that has been changed by the user is assigned to the user ID of the representative user determined in advance as the belonging user. Update the cluster correspondence table, and the user ID of the affiliation user in each correspondence information stored in the cluster correspondence table , Manages the cluster correspondence table management unit for converting to the corresponding terminal ID, and the recommendation list DB storing the correspondence information between the representative user of each cluster and the recommendation list, and specifies the terminal ID of the acquisition request source from the recommendation list acquisition request And a recommendation list providing unit that identifies a recommendation list of the representative user associated with the terminal ID of the acquisition request source in the cluster correspondence table from the recommendation list DB and provides the recommendation list to the acquisition request source. It is characterized by.

  A recommendation list providing method according to another aspect of the present invention provides a recommendation list that allows a user to belong to one of a plurality of clusters according to a content history, and provides a recommendation list for the belonging user for each cluster. A recommendation list providing method executed by a providing device, wherein a user management unit that manages user information of a mobile terminal detects that a user of a mobile terminal has been changed to another user; When a change to the user is detected, the user management unit determines whether or not the user before the change is a representative user; and when the user before the change is a representative user, a terminal unique to each portable terminal An ID correspondence table management unit that manages an ID correspondence table that stores correspondence information between IDs and user IDs unique to each user has changed the user's changes. A step of generating a new user ID associated with the terminal ID of the terminal, adding correspondence information between the terminal ID and the new user ID to the ID correspondence table, and when the user before change is a representative user, The cluster correspondence table management unit for managing the cluster correspondence table storing correspondence information between the user ID of the representative user representing the cluster and the user ID of the user belonging to the cluster has changed the user in the cluster correspondence table. Deleting the correspondence information related to the pre-change user ID related to the portable terminal, adding the correspondence information associated with the user ID of a predetermined representative user with the new user ID as the affiliated user, and the user before the change Is not a representative user, the cluster correspondence table management unit obtains a user ID related to the mobile terminal in which the user has been changed. A step of updating the cluster correspondence table so as to be associated with a user ID of a representative user determined in advance as the belonging user, and the cluster correspondence table management unit is a user of the belonging user in each correspondence information stored in the cluster correspondence table The recommendation list providing unit that manages the recommendation list DB that stores the correspondence information between the representative user of each cluster and the recommendation list is converted from the recommendation list acquisition request to the acquisition request source terminal. Identifying the ID, identifying the recommendation list of the representative user associated with the terminal ID of the acquisition request source in the cluster correspondence table from the recommendation list DB, and providing the recommendation list to the acquisition request source. It is characterized by.

  According to another aspect of the present invention as described above, when the pre-change user who is a representative user is changed to another user, the same another user (new A new user ID is generated for each user, and the new user ID is associated with the user ID of a predetermined representative user. That is, since the other user (new user) is automatically assigned to a predetermined representative user cluster, if there is a recommendation list acquisition request from the other user (new user), the acquisition request A predetermined recommendation list of representative users is provided to the original user (new user).

  On the other hand, when the pre-change user who is not the representative user is changed to another user, a new user ID is not generated for the different user and is used from before the change on the mobile terminal where the change has occurred. The existing user ID is used. That is, the cluster correspondence table management unit uses a user ID related to a mobile terminal that has been changed by a user (a user ID that has been used before the change on the mobile terminal that has been changed) as a belonging user, The cluster correspondence table is updated so as to be associated with the user ID. Therefore, when there is a recommendation list acquisition request from the other user (new user), a predetermined representative user's recommendation list is provided to the acquisition request source.

  As described above, with respect to another aspect of the present invention, it is possible to avoid the conventional inconvenience (inconvenience that a recommendation list based on the transferor's content history (preference) is provided to the transferee) without executing the clustering process. And provide an appropriate recommendation list.

  According to the present invention, when transfer succession occurs, conventional inconveniences (inconvenience that a recommendation list based on the transferor's content history (preference) is provided to the transferee) without performing clustering processing. And an appropriate recommendation list can be provided.

It is a block diagram of the whole system containing a recommendation list provision apparatus. It is a functional block block diagram of the recommendation list provision apparatus of 1st, 2nd embodiment. It is a hardware block diagram of a recommendation list provision apparatus. It is a flowchart which shows the process which concerns on 1st Embodiment. It is a figure which shows an example of ID corresponding table of 1st, 2nd embodiment, a cluster corresponding table, and recommendation list DB. It is a figure for demonstrating the process of step S2 of FIG. It is a figure for demonstrating the process of step S3 of FIG. It is a figure for demonstrating the process of step S4 of FIG. 4, FIG. It is a flowchart which shows the process which concerns on 2nd Embodiment. It is a figure for demonstrating the process of FIG.9 S12. It is a figure for demonstrating the process of step S2 of FIG. It is a figure for demonstrating the process of step S3 of FIG. It is a figure for demonstrating the process of FIG.9 S4 in the case of a representative user.

  Various embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
The first embodiment corresponds to the “one aspect of the present invention” described above, and does not determine whether or not the pre-change user is a representative user, and does not depend on whether or not the pre-change user is a representative user. It is embodiment which performs a common process.

  FIG. 1 shows a configuration diagram of the entire system including a recommendation list providing apparatus 1 according to the present embodiment. As shown in FIG. 1, the recommendation list providing apparatus 1 can wirelessly communicate with mobile terminals 2A, 2B, and 2C (hereinafter collectively referred to as “mobile terminal 2”) via a network. A list acquisition request is received, and a recommendation list for the mobile terminal 2 is provided (transmitted) in response to the request. 1 illustrates the configuration in which the recommendation list providing device 1 is connected to the portable terminal 2 via a wireless network, but the client device to which the recommendation list providing device 1 is connected is limited to the portable terminal. However, various information communication apparatuses such as a stationary computer can be applied, and the network is not limited to a wireless network, but may be a wired network.

  FIG. 2 shows a functional block configuration of the recommendation list providing apparatus 1. The recommendation list providing apparatus 1 causes a user to belong to one of a plurality of clusters according to the content history, and provides a recommendation list for the belonging user for each cluster. In order to perform such a function, the recommendation list providing apparatus 1 includes a user management unit 11, an ID correspondence table management unit 12, a cluster correspondence table management unit 13, and a recommendation list provision unit 14, as shown in FIG.

  The user management unit 11 is a part that manages user information of a mobile terminal and detects that a user of a mobile terminal has been changed to another user.

  For example, as shown in FIG. 5A, the ID correspondence table management unit 12 manages an ID correspondence table 12A that stores correspondence information between a terminal ID unique to each mobile terminal and a user ID unique to each user. This is a part for generating a new user ID associated with the terminal ID of the mobile terminal that has been changed, and adding correspondence information between the terminal ID and the new user ID to the ID correspondence table.

  For example, as shown in FIG. 5B, the cluster correspondence table management unit 13 stores a cluster correspondence table 13A that stores correspondence information between a user ID of a representative user representing the cluster and a user ID of a user belonging to the cluster. In the cluster correspondence table 13A, the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed is deleted, and the new user ID is set as the affiliation user to the user ID of a predetermined representative user. This is a part for adding the associated correspondence information and converting the user ID of the affiliated user in each correspondence information stored in the cluster correspondence table 13A into the corresponding terminal ID.

  For example, as shown in FIG. 5C, the recommendation list providing unit 14 manages a recommendation list DB 14 </ b> A that stores correspondence information between the representative user of each cluster and the recommendation list, and obtains the terminal ID of the acquisition request source from the recommendation list acquisition request. The recommendation list of the representative user associated with the acquisition request source terminal ID in the cluster correspondence table 13A is specified from the recommendation list DB 14A, and the recommendation list is provided to the acquisition request source.

  In FIG. 3, the hardware structural example of the recommendation list provision apparatus 1 is shown. The recommendation list providing device 1 is physically composed of a CPU 1A, RAMs 1B and 1C as main storage devices, input devices 1D such as keyboards and mice as input devices, output devices 1E such as displays, and data transmission / reception devices such as network cards. The computer system includes a communication module 1F and an auxiliary storage device 1G such as a hard disk. Each function described in FIG. 2 is executed by reading predetermined computer software on hardware such as the CPU 1A and the RAM 1B shown in FIG. 3 and executing them, thereby controlling the input device 1D, the output device 1E, This is realized by operating the communication module 1F and reading and writing data in the RAM 1B and the auxiliary storage device 1G.

  Hereinafter, a process related to the recommendation list providing method executed by the recommendation list providing apparatus 1 will be described with reference to FIGS.

  As shown in FIG. 4, the user management unit 11 monitors that a user of a certain mobile terminal has been changed to another user (occurrence of transfer succession) (step S1), and the occurrence of transfer succession is detected. Then, the ID correspondence table management unit 12 generates a new user ID associated with the terminal ID of the mobile terminal in which the user has been changed, and the correspondence information between the terminal ID and the new user ID is ID-compatible. It adds to Table 12A (step S2). For example, when the transfer succession occurs in the mobile terminal having the terminal ID “AB2DG83” in the ID correspondence table of FIG. 5A, the ID correspondence table managing unit 12 as shown in FIG. A new user ID (here, “101”) associated with the terminal ID “AB2DG83” is generated, and correspondence information between the terminal ID “AB2DG83” and the new user ID “101” is added to the ID correspondence table 12A. To do.

  Then, the cluster correspondence table management unit 13 deletes the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed (transfer inherited) in the cluster correspondence table 13A, and sets the new user ID as the belonging user. Correspondence information associated with the user ID of the representative user determined in advance is added (step S3). For example, as shown in FIG. 7, the cluster correspondence table management unit 13 corresponds to the correspondence information related to the pre-change user ID (here, correspondence information related to the affiliated user “001”) regarding the mobile terminal in which the transfer succession occurred in the cluster correspondence table 13A. Is added, and correspondence information associated with a predetermined representative user ID (here, “040”) is added with the new user ID (here, “101”) as the affiliated user. The predetermined representative user may be a representative user for a user who has no history, for example.

  Further, the cluster correspondence table management unit 13 converts the user ID into the corresponding terminal ID in the user column belonging to the cluster correspondence table 13A (step S4). Thereby, for example, as shown in FIG. 8, the user ID in the affiliation user column of the cluster correspondence table 13A is converted into the corresponding terminal ID.

  Thereafter, when there is a recommendation list acquisition request (YES in step S5), the recommendation list providing unit 14 specifies the acquisition request source terminal ID from the recommendation list acquisition request, and the acquisition request source terminal ID in the cluster correspondence table 13A. The recommendation list of the representative user associated with is identified from the recommendation list DB 14A, and the recommendation list is provided to the acquisition request source (step S6). For example, when there is a recommendation list acquisition request from a portable terminal (terminal ID: AB2DG83) in which transfer succession occurred, the recommendation list providing unit 14 specifies the acquisition request source terminal ID “AB2DG83” from the recommendation list acquisition request. , The recommendation list of the representative user (user ID: 040) associated with the terminal ID “AB2DG83” of the acquisition request source in the cluster correspondence table 13A of FIG. 8 is specified from the recommendation list DB 14A of FIG. A list (contents U, V, W,...) Is provided to the acquisition request source. Thereafter, the process returns to step S1 and the processes of steps S1 to S6 are repeated.

  According to the first embodiment described above, when transfer of a mobile terminal occurs, a new user ID is generated for a new user, and the new user ID corresponds to a user ID of a predetermined representative user. Attached. That is, a new user is automatically assigned to a predetermined representative user cluster. Therefore, when there is a recommendation list acquisition request from a new user, a predetermined representative user recommendation list is provided to the new user who is the acquisition request source. As described above, it is possible to avoid the conventional inconvenience (inconvenience in which a recommendation list based on the content history (preference) of the transferor is provided to the transferee) without performing the clustering process, and to provide an appropriate recommendation list. be able to.

[Second Embodiment]
The second embodiment corresponds to the above-described “another aspect of the present invention (an aspect in which an increase in the number of user IDs is suppressed)”, and when a user before change that is not a representative user is changed to a new user, In this embodiment, a new user ID is not generated for a new user. Since the system configuration in FIG. 1 is the same as that in the first embodiment, a duplicate description is omitted.

  The functional block configuration of the recommendation list providing apparatus 1 according to the second embodiment is the same as the configuration of FIG. 2 described above. However, the functions of the user management unit 11, the ID correspondence table management unit 12, and the cluster correspondence table management unit 13 are different from those of the first embodiment, and will be described below.

  The user management unit 11 manages user information of a mobile terminal, detects that a user of a certain mobile terminal has been changed to another user, and when a change to another user is detected, the user before the change This is a part for determining whether or not the user is a representative user.

  For example, as shown in FIG. 5A, the ID correspondence table management unit 12 manages and changes an ID correspondence table 12A that stores correspondence information between a terminal ID unique to each mobile terminal and a user ID unique to each user. When the previous user is a representative user, a new user ID associated with the terminal ID of the mobile terminal whose user has been changed is generated, and correspondence information between the terminal ID and the new user ID is displayed in the ID correspondence table. This is a part to be added to 12A.

  For example, as shown in FIG. 5B, the cluster correspondence table management unit 13 stores a cluster correspondence table 13A that stores correspondence information between a user ID of a representative user representing the cluster and a user ID of a user belonging to the cluster. It is a part to manage. In addition, when the pre-change user is a representative user, the cluster correspondence table management unit 13 deletes the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed in the cluster correspondence table 13A, and newly Corresponding information associated with the user ID of a predetermined representative user is added with the user ID as a belonging user. On the other hand, when the pre-change user is not the representative user, the cluster correspondence table management unit 13 associates the user ID related to the mobile terminal in which the user has been changed with the user ID of the representative user determined in advance as the belonging user. The cluster correspondence table 13A is updated. Further, the cluster correspondence table management unit 13 converts the user ID of the belonging user in each correspondence information stored in the cluster correspondence table 13A after the correspondence information is added or updated, into a corresponding terminal ID.

  In addition, since the function of the recommendation list provision part 14 is the same as that of 1st Embodiment, the overlapping description is abbreviate | omitted.

  Hereinafter, processing related to the recommendation list providing method executed by the recommendation list providing apparatus 1 will be described with reference to FIGS. 5 and 8 to 13.

  As illustrated in FIG. 9, the user management unit 11 monitors that a user of a certain mobile terminal has been changed to another user (occurrence of transfer succession) (step S <b> 1), and detects the occurrence of transfer succession. The user management unit 11 determines whether or not the pre-change user is a representative user (step S11).

  If the pre-change user is not the representative user (NO in step S11), the cluster correspondence table management unit 13 associates the user ID related to the portable terminal for which the transfer succession has occurred with the user ID of the representative user determined in advance as the belonging user. Thus, the cluster correspondence table 13A is updated (step S12). For example, when transfer succession occurs in the portable terminal (non-representative user) with the terminal ID “AB2DG83” in the ID correspondence table of FIG. 5A, the cluster correspondence table management unit 13 changes the user as shown in FIG. The cluster correspondence table 13 </ b> A is updated so that the user ID “001” regarding the mobile terminal in which there is a user is associated with the user ID “040” of a representative user determined in advance. Further, the cluster correspondence table management unit 13 converts the user ID of the user belonging to the cluster correspondence table 13A into a corresponding terminal ID (step S4). Thereby, for example, as shown in FIG. 8, the user ID in the affiliation user column of the cluster correspondence table 13A is converted into the corresponding terminal ID.

  On the other hand, if the pre-change user is a representative user (YES in step S11), the ID correspondence table management unit 12 is associated with the terminal ID of the mobile terminal in which the user has been changed, as in the first embodiment. A new user ID is generated, and correspondence information between the terminal ID and the new user ID is added to the ID correspondence table 12A (step S2). For example, when the transfer succession occurs in the mobile terminal having the terminal ID “JEI1S09E” in the ID correspondence table of FIG. 5A, the ID correspondence table management unit 12 of the mobile terminal in which the transfer succession occurs as shown in FIG. A new user ID (“103” in this case) associated with the terminal ID “JEI1S09E” is generated, and correspondence information between the terminal ID “JEI1S09E” and the new user ID “103” is added to the ID correspondence table 12A. To do.

  Then, the cluster correspondence table management unit 13 deletes the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed (transfer inherited) in the cluster correspondence table 13A, and sets the new user ID as the belonging user. Correspondence information associated with the user ID of the representative user determined in advance is added (step S3). For example, as illustrated in FIG. 12, the cluster correspondence table management unit 13 includes correspondence information related to the pre-change user ID (here, correspondence information related to the belonging user “003”) regarding the portable terminal that has been handed over in the cluster correspondence table 13A. Is added, and correspondence information associated with a predetermined representative user ID (here, “040”) is added with the new user ID (here, “103”) as the affiliated user. Further, the cluster correspondence table management unit 13 converts the user ID of the affiliation user in each correspondence information stored in the cluster correspondence table 13A into the corresponding terminal ID in the cluster correspondence table 13A (step S4). Thereby, for example, as shown in FIG. 13, the user ID in the belonging user column of the cluster correspondence table 13A is converted to the corresponding terminal ID.

  Thereafter, when there is a recommendation list acquisition request (YES in step S5), the recommendation list providing unit 14 specifies the acquisition request source terminal ID from the recommendation list acquisition request, and the acquisition request source terminal ID in the cluster correspondence table 13A. The recommendation list of the representative user associated with is identified from the recommendation list DB 14A, and the recommendation list is provided to the acquisition request source (step S6).

  For example, when there is a recommendation list acquisition request from a portable terminal (terminal ID: AB2DG83) related to a non-representative user in which transfer succession occurs, the recommendation list providing unit 14 determines the terminal ID of the acquisition request source from the recommendation list acquisition request. The recommendation list of the representative user (user ID: 040) that identifies “AB2DG83” and is associated with the acquisition request source terminal ID “AB2DG83” in the cluster correspondence table 13A of FIG. 8 is the recommendation list DB 14A of FIG. And the recommendation list (contents U, V, W,...) Is provided to the acquisition request source.

  Also, for example, when a recommendation list acquisition request is made from a portable terminal (terminal ID: JEI1S09E) related to a representative user in which transfer succession has occurred, the recommendation list providing unit 14 determines the terminal ID of the acquisition request source from the recommendation list acquisition request. “JEI1S09E” is identified, and the recommendation list of the representative user (user ID: 040) associated with the acquisition request source terminal ID “JEI1S09E” in the cluster correspondence table 13A of FIG. 13 is the recommendation list DB 14A of FIG. 5C. And the recommendation list (contents U, V, W,...) Is provided to the acquisition request source.

  Thereafter, the process returns to step S1 and the processes of steps S1 to S6 are repeated.

  As in the second embodiment described above, when the pre-change user who is not the representative user is changed to a new user, the clustering process is performed even if the new user ID is not generated for the new user. Even if it is not executed, it is possible to avoid the conventional inconvenience (inconvenience that the transfer list is provided with a recommendation list based on the content history (preference) of the transferor) and to provide an appropriate recommendation list. In the second embodiment, it is necessary to determine whether or not the pre-change user is the representative user. However, when the pre-change user who is not the representative user is changed to a new user, a new user ID is generated. Therefore, an increase in the number of user IDs can be suppressed.

  In the first and second embodiments described above, in step S4 of FIG. 4 or FIG. 9, the cluster correspondence table management unit 13 in the cluster correspondence table 13A belongs to each corresponding information stored in the cluster correspondence table 13A. In the above example, the user ID is converted into the corresponding terminal ID. By performing such processing, the recommendation list providing unit 14 can quickly recognize the representative user associated with the terminal ID of the acquisition request source in the cluster correspondence table 13A in step S6. The processing time for specifying the recommendation list from the recommendation list DB 14A and providing it to the acquisition request source (that is, the online response to the acquisition request source) can be shortened.

  If the degree of request for the above processing time (online response to the acquisition request source) is low, the following processing mode can also be adopted. For example, in step S2 of FIG. 4 or FIG. 9, after generating a new user ID associated with the terminal ID of the portable terminal that has been transferred or succeeded, the user ID for the terminal ID is newly set in the ID correspondence table 12A. Replace with user ID. In this case, since the one-to-one correspondence between the terminal ID and the user ID can be maintained, in the cluster correspondence table 13A, the user ID of the affiliation user in each correspondence information stored in the cluster correspondence table 13A is converted into the corresponding terminal ID. A process (step S4 of FIG. 4 or FIG. 9) becomes unnecessary. However, in this case, a situation may occur in which the user ID of the representative user is deleted from the ID correspondence table 12A. Therefore, in step S6, the recommendation list providing unit 14 specifies a new user ID corresponding to the terminal ID of the acquisition request source by referring to the ID correspondence table 12A in response to the recommendation list acquisition request from the acquisition request source. The user ID of the representative user corresponding to the new user ID is specified by referring to the cluster correspondence table 13A, and the recommendation list corresponding to the user ID of the representative user is specified by referring to the recommendation list DB 14A, and an acquisition request is made. Can be provided to the original.

  DESCRIPTION OF SYMBOLS 1 ... Recommendation list provision apparatus, 1A ... CPU, 1B ... RAM, 1C ... ROM, 1D ... Input device, 1E ... Output device, 1F ... Communication module, 1G ... Auxiliary storage device, 2 ... Portable terminal, 11 ... User management part 12 ... ID correspondence table management unit, 12A ... ID correspondence table, 13 ... cluster correspondence table management unit, 13A ... cluster correspondence table, 14 ... recommendation list providing unit, 14A ... recommendation list DB.

Claims (4)

According to a content history, a user belongs to one of a plurality of clusters, a recommendation list providing device that provides a recommendation list for a user belonging to each cluster,
A user management unit that manages user information of a mobile terminal and detects that a user of a mobile terminal has been changed to another user;
A new user ID associated with the terminal ID of the portable terminal that has been changed by managing the ID correspondence table storing the correspondence information between the terminal ID unique to each portable terminal and the user ID unique to each user An ID correspondence table management unit that adds correspondence information between the terminal ID and the new user ID to the ID correspondence table;
Manages a cluster correspondence table that stores correspondence information between user IDs of representative users representing the cluster and user IDs of affiliated users belonging to the cluster, and before the change related to the mobile terminal in which the user has been changed in the cluster correspondence table In addition to deleting the correspondence information related to the user ID, adding the correspondence information associated with the user ID of a predetermined representative user, with the new user ID as the belonging user, in each correspondence information stored in the cluster correspondence table A cluster correspondence table management unit for converting the user ID of the affiliated user into a corresponding terminal ID;
Manages the recommendation list DB that stores correspondence information between representative users and recommendation lists of each cluster, identifies the acquisition request source terminal ID from the recommendation list acquisition request, and associates it with the acquisition request source terminal ID in the cluster correspondence table A recommendation list providing unit that identifies a recommendation list of the representative user who is given from the recommendation list DB and provides the recommendation list to an acquisition request source;
A recommendation list providing device comprising: According to a content history, a user belongs to one of a plurality of clusters, a recommendation list providing device that provides a recommendation list for a user belonging to each cluster,
If the user information of the mobile terminal is managed, it is detected that the user of a certain mobile terminal has been changed to another user, and a change to another user is detected, whether or not the pre-change user is the representative user A user management unit for determining
Managing the ID correspondence table storing the correspondence information between the terminal ID unique to each portable terminal and the user ID unique to each user, and when the user before change is a representative user, the terminal of the portable terminal in which the user has changed An ID correspondence table management unit that generates a new user ID associated with the ID and adds correspondence information between the terminal ID and the new user ID to the ID correspondence table;
Managing a cluster correspondence table storing correspondence information between the user ID of a representative user representing the cluster and the user ID of an affiliated user belonging to the cluster;
When the pre-change user is a representative user, in the cluster correspondence table, the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed is deleted, and a new user ID is assigned as the belonging user. Add correspondence information associated with the user ID of the representative user,
If the pre-change user is not the representative user, the cluster correspondence table is updated so that the user ID related to the mobile terminal in which the user has been changed is associated with the user ID of the representative user determined in advance.
A cluster correspondence table management unit that converts a user ID of a user belonging to each correspondence information stored in the cluster correspondence table into a corresponding terminal ID;
Manages the recommendation list DB that stores correspondence information between representative users and recommendation lists of each cluster, identifies the acquisition request source terminal ID from the recommendation list acquisition request, and associates it with the acquisition request source terminal ID in the cluster correspondence table A recommendation list providing unit that identifies a recommendation list of the representative user who is given from the recommendation list DB and provides the recommendation list to an acquisition request source;
A recommendation list providing device comprising: A recommendation list providing method executed by a recommendation list providing apparatus that makes a user belong to one of a plurality of clusters according to a content history, and provides a recommendation list for the user belonging to each cluster,
A step of detecting that a user of a mobile terminal is changed to another user by a user management unit that manages user information of the mobile terminal;
An ID correspondence table management unit that manages an ID correspondence table that stores correspondence information between a terminal ID unique to each mobile terminal and a user ID unique to each user is associated with the terminal ID of the mobile terminal that has been changed by the user Generating a new user ID, and adding correspondence information between the terminal ID and the new user ID to the ID correspondence table;
The cluster correspondence table management unit for managing the cluster correspondence table storing correspondence information between the user ID of the representative user representing the cluster and the user ID of the user belonging to the cluster has changed the user in the cluster correspondence table. Deleting the correspondence information related to the pre-change user ID related to the mobile terminal and adding the correspondence information associated with the user ID of a predetermined representative user with the new user ID as the affiliated user;
The cluster correspondence table management unit converts the user ID of the user belonging to each correspondence information stored in the cluster correspondence table into a corresponding terminal ID;
A recommendation list providing unit that manages a recommendation list DB storing correspondence information between representative users of each cluster and recommendation lists specifies the terminal ID of the acquisition request source from the recommendation list acquisition request, and the acquisition request source of the acquisition request source in the cluster correspondence table Identifying a recommendation list of the representative user associated with the terminal ID from the recommendation list DB, and providing the recommendation list to the acquisition request source;
A recommendation list providing method comprising: A recommendation list providing method executed by a recommendation list providing apparatus that makes a user belong to one of a plurality of clusters according to a content history, and provides a recommendation list for the user belonging to each cluster,
A step of detecting that a user of a mobile terminal is changed to another user by a user management unit that manages user information of the mobile terminal;
When a change to another user is detected, the user management unit determines whether the pre-change user is a representative user; and
When the pre-change user is a representative user, an ID correspondence table management unit that manages an ID correspondence table that stores correspondence information between a terminal ID unique to each mobile terminal and a user ID unique to each user is changed by the user. Generating a new user ID associated with the terminal ID of the mobile terminal, and adding correspondence information between the terminal ID and the new user ID to the ID correspondence table;
When the pre-change user is a representative user, a cluster correspondence table management unit that manages a cluster correspondence table that stores correspondence information between a user ID of a representative user representing the cluster and a user ID of a user belonging to the cluster, In the cluster correspondence table, the correspondence information related to the pre-change user ID related to the mobile terminal in which the user has been changed is deleted, and the new user ID is assigned to the user and the correspondence is associated with the user ID of a predetermined representative user Adding information,
If the pre-change user is not a representative user, the cluster correspondence table management unit associates the user ID related to the mobile terminal whose user has been changed as a belonging user with the user ID of a representative user determined in advance, as a belonging user. A step of updating
The cluster correspondence table management unit converts the user ID of the user belonging to each correspondence information stored in the cluster correspondence table into a corresponding terminal ID;
A recommendation list providing unit that manages a recommendation list DB storing correspondence information between representative users of each cluster and recommendation lists specifies the terminal ID of the acquisition request source from the recommendation list acquisition request, and the acquisition request source of the acquisition request source in the cluster correspondence table Identifying a recommendation list of the representative user associated with the terminal ID from the recommendation list DB, and providing the recommendation list to the acquisition request source;
A recommendation list providing method comprising:

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