JP6223497B2 - Information providing apparatus, information providing method, and information providing program - Google Patents

Description

  The present invention relates to an information providing apparatus, an information providing method, and an information providing program.

  Conventionally, with the rapid spread of the Internet, various information has been provided through the Internet. As an example of a technique for providing such information, it is estimated that user attribute information acquired in advance is managed and the user's interest can be obtained according to the attribute information of the user who is the information providing destination. A technique for selecting information and providing the selected information is known.

JP, 2006-051310, A

  Here, there is a demand for using user attribute information acquired in advance to provide a certain service in order to provide another service. However, if attribute information obtained by a service provider is provided to other service providers in a state where it is possible to identify which user's attribute information, personal information may be leaked. is there. For this reason, user attribute information acquired in advance to provide a certain service may not be used to provide another service.

  The present application has been made in view of the above, and an object thereof is to use user attribute information while preventing leakage of personal information.

  When the information providing apparatus according to the present application receives a plurality of user identifiers from the client, the information providing apparatus refers to a storage device that stores the user identifier and the attribute information of the user in association with each other, and receives the identifier from the client A generating unit that generates information based on the number of common attribute information among the attribute information associated with the plurality of identifiers, and a providing unit that provides the client with the information generated by the generating unit. Features.

  According to one aspect of the embodiment, it is possible to use user attribute information while preventing leakage of personal information.

FIG. 1 is a diagram illustrating an example of an information providing process executed by the information providing apparatus according to the embodiment. FIG. 2 is a diagram illustrating a configuration example of the information providing apparatus according to the embodiment. FIG. 3 is a diagram illustrating an example of information registered in the attribute database according to the embodiment. FIG. 4 is a diagram illustrating an example of an attribute report generated by the information providing apparatus according to the embodiment. FIG. 5 is a flowchart illustrating an example of a flow of information providing processing executed by the information providing apparatus according to the embodiment. FIG. 6 is a diagram illustrating an example of a hardware configuration.

  Hereinafter, an embodiment for implementing an information providing apparatus, an information providing method, and an information providing program according to the present application (hereinafter referred to as “embodiment”) will be described in detail with reference to the drawings. In addition, the information providing apparatus, the information providing method, and the information providing program according to the present application are not limited by this embodiment. In the following embodiments, the same portions are denoted by the same reference numerals, and redundant description is omitted.

[1-1. Example of information providing device)
First, an example of information providing processing executed by the information providing apparatus will be described with reference to FIG. FIG. 1 is a diagram illustrating an example of an information providing process executed by the information providing apparatus according to the embodiment. In FIG. 1, the information providing apparatus 10 can communicate with a client server 50 used by a predetermined client via a predetermined network N such as the Internet.

  The information providing apparatus 10 is an information processing apparatus that executes an information providing process to be described later, and is realized by, for example, a server apparatus or a cloud system. Further, the information providing apparatus 10 describes attribute information indicating attributes such as the age, age, gender, address, etc. of the user, that is, demographic information as a user identifier (hereinafter referred to as “user ID (Identifier)”). Are managed in association with each other. Then, when the user browses the web content, the information providing apparatus 10 specifies attribute information associated with the user ID of the user. And the information provision apparatus 10 selects the content arrange | positioned in the advertisement content and web page delivered with respect to a user based on the specified attribute information.

  For example, the information providing apparatus 10 acquires “ID # 01” that is an IDFA (Identification For Advertisers) or ADID (Advertising Identifier) given to the terminal device 100 used by the user U01 as the user ID of the user U01. To do. Then, the information providing apparatus 10 stores the attribute information registered in advance by the user U01 in association with the user ID “ID # 01”. Note that the information providing apparatus 10 uses the user ID “ID # 01” as attribute information of the user U01 estimated from the history of the content viewed by the user U01 on the web, the position information collected from the terminal device 100, and the like. And may be stored in association with each other. That is, the information providing apparatus 10 may store information acquired or estimated by an arbitrary method as attribute information as long as the information indicates the attribute of the user U01.

  On the other hand, the client server 50 is an information processing apparatus that provides a service different from the service provided by the information providing apparatus 10, and is realized by, for example, a server apparatus or a cloud system. For example, the client server 50 is a distribution server that distributes various game contents to the user U01 via a network. The service provided by the client server 50 to the user U01 is not limited to the distribution of game content, and any service can be applied as long as the service is different from the service provided by the information providing apparatus 10 Is possible.

  The terminal device 100 is a smart device such as a smartphone or a tablet, and is a portable terminal device that can communicate with an arbitrary server device via a wireless communication network such as 3G (Generation) or LTE (Long Term Evolution). . The terminal device 100 may be an information processing device such as a desktop PC (Personal Computer) or a notebook PC as well as a smart device.

[1-2. Example of information provision process)
Here, the attribute information of the user U01 is personal information of the user U01. For this reason, the attribute information of the user U01 is required to be handled not only according to the policy of the service provided by the information providing apparatus 10, but also according to the request of the Personal Information Protection Law. For example, when the information providing apparatus 10 accepts the registration of attribute information from the user U01, the user U01 gives permission for using the attribute information registered in the service provided by the information providing apparatus 10 to the user U01. Accept from. As a result, the information providing apparatus 10 can use attribute information for services provided by the information providing apparatus 10 to the user U01, such as distribution of advertisement content. On the other hand, the act of using the attribute information of the user U01 managed by the information providing apparatus 10 for other services as the attribute information of the user U01 without obtaining the permission of the user U01, and the attribute information of the user U01 are used. The act of providing to another person in a state that can be identified as the attribute information of the user U01 may correspond to leakage of personal information.

  However, there is a desire to use the attribute information of the user U01 for other services. In particular, in various content distribution services such as music content, moving image content, game content as well as distribution of advertisements and web pages, depending on what attribute information user is using the service, There is a desire to control the service.

  Therefore, the information providing apparatus 10 provides the attribute information of the user of the service provided by the client server 50 in a state that cannot be identified from the attribute information of each user by executing the following information providing process. More specifically, the information providing apparatus 10 receives a plurality of user IDs of users from a client. Then, the information providing apparatus 10 refers to the attribute database 31 that stores the user ID and attribute information of the user in association with each other, and the common attribute among the attribute information associated with the plurality of user IDs received from the client. Information based on the number of information, that is, an attribute report C10 is generated. Thereafter, the information providing apparatus 10 provides the generated attribute report C10 to the client.

  That is, the information providing apparatus 10 does not output the attribute information as it is, but provides the attribute report C10 based on the number of common attribute information (that is, the number of users having common attribute information). Such an attribute report C10 is information that does not include information indicating a direct correspondence between the attribute information and the user ID, that is, information that abstracts the relationship between the attribute information and the user ID. For this reason, the client cannot estimate the association between the attribute information and the user ID from one attribute report C10. On the other hand, when such an attribute report C10 is provided to the client, it can be a guideline as to what service should be provided to the user. For this reason, the information providing apparatus 10 provides the attribute report C10 based on the number of common attribute information, thereby preventing the leakage of personal information and collecting user attribute information collected for use in a predetermined service. Can be used for other services.

[1-3. Example of attribute report)
Here, the information providing apparatus 10 may include arbitrary information in the attribute report C10 as long as the information is based on the number of common attribute information. For example, the information providing apparatus 10 provides information indicating how many are women and how many are men among users corresponding to the user ID received from the client, that is, the number of common attribute information as it is to the client. May be provided.

  Further, the information providing apparatus 10 may generate an attribute report C10 indicating the distribution of the number of common attribute information. For example, the information providing apparatus 10 generates an attribute report C10 that graphs the number of users of each age and age, such as the number of users in their teens, the number of users in their 20s, and the number of users in their 30s. It may be generated. The information providing apparatus 10 may generate an attribute report C10 in which the number and ratio of users living in each prefecture are graphed. Further, the information providing apparatus 10 may generate a radar chart in which the number of common attribute information is plotted. That is, the information providing apparatus 10 may generate the attribute report C10 indicating a distribution indicating the correspondence between the attribute information and the number of users belonging to the attribute information (the number of attribute information). Note that the information providing apparatus 10 may arbitrarily change what kind of information the attribute report C <b> 10 is generated in accordance with the client to which the attribute report C <b> 10 is provided.

  Further, the information providing apparatus 10 may generate information indicating a ratio based on the number of common attribute information. For example, the information providing apparatus 10 may generate, as the attribute report C10, a pie chart, a bar graph, a radar chart, or the like indicating the ratio of the user's gender, the ratio of each age or age of the user, and the like.

  In addition, the information providing apparatus 10 includes the number of common attribute information among the attribute information associated with the plurality of user IDs received last time from the client, and the attribute associated with the plurality of user IDs newly received from the client. You may produce | generate the attribute report C10 which shows a change with the number of common attribute information among information. For example, when the information providing apparatus 10 receives the user ID of the user who accesses the client server 50 during the day, the attribute report displays a graph indicating the change in the sex ratio of the user who accesses the client server 50 every day. It may be generated as C10.

  Further, the information providing apparatus 10 refers to the attribute database 31 that stores attribute information of a plurality of items in association with the user ID of the user, and among the attribute information associated with the plurality of user IDs received from the client. An attribute report C10 based on the number of common attribute information may be generated for each item. For example, the information providing apparatus 10 determines the number of users in the sex ratio, the number and ratio of each age and age, and each region (for example, prefecture) from the attribute information associated with a plurality of user IDs received from the client. The attribute report C10 based on the number of common attribute information may be generated for each item such as the ratio or ratio of the resident or resident user.

  As described above, the information providing apparatus 10 creates the attribute report C10 that abstracts the relevance between the attribute information and the user ID by creating the attribute report C10 that includes various information based on the number of common attribute information. can do. Note that the content of the attribute report C10 provided by the information providing apparatus 10 is not limited to the content described above. That is, the information providing apparatus 10 creates an arbitrary attribute report C10 if the attribute report C10 includes information that does not specify correspondence between the user ID and attribute information (so that personal information is not specified). Good. For example, the information providing apparatus 10 converts the personal information into a higher concept so that the individual user is not specified, and information based on the number of information when the information common to the users is included in the upper conceptual information. Any information may be generated. As described above, the higher the concept of personal information, the greater the number of information (number of samples) used when creating the attribute report C10. Therefore, the accuracy of the information indicated by the attribute report C10 can be improved. On the other hand, if personal information is conceptualized to such an extent that individuals are not specified without increasing the number of samples, information based on the relatively detailed number of attribute information (that is, the number of users) is provided. be able to.

[1-4. (Specifying segments)
Further, the information providing apparatus 10 may create the attribute report C10 in consideration of the segment. For example, when the information providing apparatus 10 accepts a designation of a plurality of user IDs and a group to which the user indicated by each user ID belongs from the client, the information providing apparatus 10 includes, for each designated group, the user belonging to the group. The attribute report C10 based on the number of common attribute information among the attribute information associated with the user ID may be generated. For example, when the information providing apparatus 10 receives user IDs of a plurality of users belonging to the first group and user IDs of a plurality of users belonging to the second group, the information providing apparatus 10 displays the attribute report C10 as the first report. You may produce | generate about each of 1 group and 2nd group.

  Further, the information providing apparatus 10 may generate an attribute report C10 in which information based on the number of common attribute information among the user attribute information belonging to each segment is arranged. For example, the information providing apparatus 10 may generate the attribute report C10 in which the sex ratio of the users belonging to the first group and the sex ratio of the users belonging to the second group are arranged. In addition, the information providing apparatus 10 may, for example, include information based on the number of common attribute information among user attribute information belonging to the first group and common attribute among user attribute information belonging to the second group. You may generate the attribute report C10 which can switch the information based on the number of information with a tab. Further, the information providing apparatus 10 may generate the attribute report C10 including a ratio between the number of attribute information common to each group and the number of users belonging to all the segments.

  Further, the information providing apparatus 10 may provide a service that makes it easy to specify a segment to the client. For example, when receiving a plurality of user IDs from the client, the information providing apparatus 10 provides the client with an interface for designating which user ID belongs to which segment, and which user ID belongs to which segment from the client. May be accepted.

  Note that when such a segment is used, the client can be used, for example, to identify a configuration difference between a service charging user and a non-charging user. However, the information providing apparatus 10 does not accept designation of what user ID the user ID is, such as a billing user and a non-billing user, and simply refers to the first group and the second group. Accepts such a specification. For this reason, the information providing apparatus 10 does not accept the attribute information of each user in a state where it can be specified, so the attribute report C10 is retained while maintaining the policy that personal information cannot be received from other services in a state where it can be specified. Can be provided.

[1-5. About providing attribute reports)
Here, a plurality of users whose attribute information is managed by the information providing apparatus 10 and a plurality of users who receive the service provided by the client server 50 may not completely match. However, in the case where such a user difference exists, when the fact is presented to the client, what kind of user is associated with the correspondence between the user ID and the attribute information or the user ID managed by the information providing apparatus 10 There is a risk that information on whether an ID is included can be easily estimated.

  Therefore, the information providing apparatus 10 identifies user IDs that are common to a plurality of user IDs received from the client among the user IDs stored in the attribute database 31, and includes attribute information associated with the identified user IDs. An attribute report C10 based on the number of common attribute information is generated. And the information provision apparatus 10 provides the produced | generated attribute report C10 as the attribute report C10 based on the number of common attribute information among the attribute information matched with all the user IDs received from the client.

  For example, when only a part of user IDs received from the client are registered in the attribute database 31, the information providing apparatus 10 is registered in the attribute database 31 among the user IDs received from the client. And identifying attribute information associated with the identified user ID. Further, the information providing apparatus 10 calculates the ratio of the common attribute information among the extracted attribute information as the ratio to the user attribute information indicated by all user IDs received from the client. And the information provision apparatus 10 may provide the attribute report C10 which shows the calculated ratio.

[1-6. (Number of users)
Here, the information providing apparatus 10 may provide a predetermined limit on the number of user IDs received from the client in order to prevent estimation of personal information. For example, the information providing apparatus 10 may notify the client that the attribute report C10 cannot be generated when the number of user IDs received from the client is less than a predetermined threshold (for example, 1000). Good. For example, the information providing apparatus 10 cannot generate the attribute report C10 when the number of user IDs registered in the attribute database 31 among user IDs received from the client is less than a predetermined threshold. May be notified to the client.

[1-7. About discarding user ID]
When the information providing apparatus 10 generates the attribute report C10 based on the number of common attribute information among the attribute information associated with the plurality of user IDs received from the client, the information providing apparatus 10 receives the plurality of user IDs received from the client. May be discarded. By executing such processing, the information providing apparatus 10 can reduce the chance that the user who uses the service provided by the client is specified.

[1-8. (Specific prevention of personal information)
When the user ID of the user to be transmitted to the information providing apparatus 10 is changed each time the attribute report C10 is generated, based on the difference of the user ID and the difference of information included in the attribute report C10. There is a risk that it is easy to estimate the correspondence between the user ID and the attribute information. Therefore, the information providing apparatus 10 may have a function for preventing identification of personal information. For example, the number of users accessing the service provided by the client and the variation in the number are predicted to fall within a predetermined threshold. Therefore, the information providing apparatus 10 may output a warning to a predetermined administrator or the like when the frequency of receiving the user ID from the client exceeds a predetermined threshold. Further, the information providing apparatus 10 may stop creating and providing the attribute report C10 until a predetermined condition is satisfied. Note that the number of users and the threshold value of the variation in the number may be assumed based on, for example, the number of users managed by the client.

  In addition, the information providing apparatus 10 randomly selects some user IDs from the user IDs received from the client, and based on the number of common attribute information among the attribute information associated with the selected user ID. The attribute report C10 may be provided as the attribute report C10 based on the number of common attribute information among the attribute information associated with all user IDs received from the client. The information providing apparatus 10 may randomly change the number of user IDs selected from the user IDs received from the client each time the attribute report C10 is generated.

  Further, the information providing apparatus 10 may determine whether to stop creating or providing the attribute report C10 based on the difference between the attribute reports C10 provided to the client. For example, the information providing apparatus 10 calculates the possibility that the correspondence between the attribute information and the user ID can be estimated from the difference of the attribute report C10 provided to the client, and the calculated possibility sets a predetermined threshold value. If it exceeds, it may be determined that the creation or provision of the attribute report C10 is stopped.

  By executing such processing, the information providing apparatus 10 can prevent an illegal act such as specifying user attribute information from the difference of the attribute report C10.

[1-9. About identifiers and attributes)
The information providing apparatus 10 can employ any information as an identifier as long as it can identify the user. For example, the information providing apparatus 10 may use not only the above-described IDFA and ADID but also an HTTP (Hyper Text Transfer Protocol) cookie stored in the terminal apparatus 100 used by the user as an identifier. A user name used by a user for the service provided by the server 50 may be used as an identifier.

  Further, the information providing apparatus 10 may manage arbitrary information as attribute information as long as it is information indicating a user attribute. For example, the information providing apparatus 10 may include a history of the types of web pages viewed by the user, a history of products purchased by the user in the online shopping mall, a history of advertisement content selected by the user, and music content viewed by the user. An arbitrary history such as a history of moving image content may be managed as attribute information. And the information provision apparatus 10 may provide the attribute report C10 based on the number of common attribute information among arbitrary attribute information. For example, the information providing apparatus 10 may generate an attribute report C10 or the like indicating the ratio of users who have viewed a song by a predetermined artist.

[1-10. (Billing form)
Note that the information providing apparatus 10 may charge the client when providing the attribute report C10. For example, the information providing apparatus 10 may change the charge amount based on the number of user IDs received from the client, the content of information included in the attribute report C10, the number of times the attribute report C10 is generated, and the like. Further, the information providing apparatus 10 may change the billing amount based on the number of segments specified by the client. In addition, when the information providing apparatus 10 provides an interface for accepting the segment designation, the information providing apparatus 10 may charge the client for the segment designation.

[1-11. An example of information provision processing)
Hereinafter, an example of the information providing process executed by the information providing apparatus 10 will be described with reference to FIG. In the example illustrated in FIG. 1, the information providing apparatus 10 includes the attribute database 31 in which the attribute information of the user U01 is registered in advance in association with the identifier “ID # 01” of the user U01. To do. For example, the user U01 accesses the client server 50 in order to receive a service provided by the client server 50. In such a case, the client server 50 collects “ID # 01”, which is the IDFA / ADID of the terminal device 100 used by the user U01, as a user ID (step S1) and registers it in the application database 51. The client server 50 may accept registration of various types of information used for providing the service from the user U01, and register the accepted information as user information in the application database 51 in association with the user ID. Further, it is assumed that the client server 50 collects user IDs from an arbitrary number of users other than the user U01.

  Further, when the client server 50 wants to know the attributes of the users who provide the service, the client server 50 has a plurality of user IDs registered in the application database 51, that is, a plurality of users who receive the services provided by the client. The user ID is transmitted to the information providing apparatus 10 (step S2). In such a case, the information providing apparatus 10 refers to the attribute database 31 and extracts attribute information associated with the user ID received from the client server 50 (step S3). And the information provision apparatus 10 counts the number of attribute information which is common among the extracted attribute information for every item, and produces | generates the attribute report C10 based on the counted number (step S4). For example, in the example shown in FIG. 1, the information providing apparatus 10 is a graph in which the number of users in each age is plotted (that is, a graph showing the age configuration and age configuration of users who receive services provided by the client server 50). Or, an attribute report C10 including a pie chart and a value indicating the sex ratio is generated. Then, the information providing apparatus 10 provides the generated attribute report C10 to the client server 50 (step S5). Thereafter, the information providing apparatus 10 discards the user ID received from the client server 50 (step S6).

  In this way, the information providing apparatus 10 does not provide the attribute information corresponding to the user ID received from the client as it is, but identifies the common attribute information among the attribute information corresponding to the user ID received from the client. Then, an attribute report C10 based on the specified number of attribute information is generated. Thus, while the number of common attribute information can be a guideline for what kind of service should be provided to the client, it is not possible to directly identify the user having the attribute information. Information, that is, information for which it is difficult to specify personal information. Therefore, the information providing apparatus 10 provides the client with the attribute report C10 based on the number of common attribute information, thereby preventing the leakage of personal information and allowing the user's attribute information to be used for other services. I can do it.

[1-12. Execution form of information provision processing)
Note that the information providing apparatus 10 may execute the information providing process described above in the form of a so-called ASP (Application Service Provider). For example, the information providing apparatus 10 receives a plurality of user IDs from the client server 50, extracts attribute information associated with the received user IDs, and attribute report based on the number of common attribute information among the extracted attribute information An information providing program for causing the computer to execute processing for generating C10 and providing the generated attribute report C10 to the client server 50 is executed. When such a process is executed, the information providing apparatus 10 executes the information providing process when receiving a plurality of user IDs from the client server 50, and provides the attribute report C10 to the client server 50 as an execution result. Can work as.

  Further, the information providing apparatus 10 may execute the above-described information providing process in the form of an ASP described in, for example, JSON (JavaScript (registered trademark) Object Notation). As described above, when an ASP programmed in the JSON format is used, for example, even when the attribute information item for creating the attribute report C10 changes, it is possible to easily cope with the change.

[1-13. (Handling of personal information)
Here, since the user ID and the attribute information are registered in association with each other in the attribute database 31 managed by the information providing apparatus 10, it is necessary to ensure security. Therefore, the information providing apparatus 10 may keep the information registered in the attribute database 31 secure by using various information security techniques. For example, in the attribute database 31, the person who can enter is limited to a direct person in charge within the business that provides the attribute report C 10, and the data communication path when acquiring information from the attribute database 31 is limited. It may be arranged in a secure area that is a physically partitioned space.

  Further, for example, the attribute database 31 is a database server that can communicate with the information providing apparatus 10 through a secure communication path, and may be arranged in a database server arranged in the secure area described above. Further, when the information providing apparatus 10 receives the user ID from the client, the information providing apparatus 10 acquires only the attribute information associated with the received user ID from the database server via the secure communication path, and is common among the acquired attribute information. The attribute report C10 based on the number of attribute information to be generated may be generated. The information registered in the attribute database 31 may be stored in an encrypted state so that the information providing apparatus 10 can decrypt the encrypted information. As described above, the attribute database 31 may be managed so that the personal information of the user is maintained physically and physically.

[2. Configuration of information providing device]
Hereinafter, an example of the functional configuration of the information providing apparatus 10 that realizes the information providing process described above will be described. FIG. 2 is a diagram illustrating a configuration example of the information providing apparatus according to the embodiment. As illustrated in FIG. 2, the information providing apparatus 10 includes a communication unit 20, a storage unit 30, and a control unit 40.

  The communication unit 20 is realized by, for example, a NIC (Network Interface Card). The communication unit 20 is connected to the network N in a wired or wireless manner, and transmits and receives information to and from the terminal device 100 and the client server 50.

  The storage unit 30 is realized by, for example, a semiconductor memory device such as a RAM (Random Access Memory) or a flash memory, or a storage device such as a hard disk or an optical disk. In addition, the storage unit 30 stores an attribute database 31.

  In the attribute database 31, a user ID, which is a user identifier, and user attribute information are registered in association with each item of attribute information. For example, FIG. 3 is a diagram illustrating an example of information registered in the attribute database according to the embodiment. For example, in the example illustrated in FIG. 3, a plurality of pieces of information having items such as “user ID”, “attribute item”, and “attribute information” are registered in the attribute database 31 for each “user ID”. Here, the “user ID” is an identifier of the user, for example, an identifier such as IDFA or ADID assigned to the terminal device 100 used by the user. The “attribute item” is information indicating an item of attribute information. For example, information such as “sex”, “age”, “address”, and the like is registered. The “attribute information” is attribute information of the user indicated by the associated user ID and content information indicated by the associated attribute item.

  For example, in the example illustrated in FIG. 3, the attribute item “sex” and the attribute information “male” are registered in association with the user ID “ID # 01”, and the attribute item “age” (or “age” may be used). And attribute information “30's” are registered in association with each other, and attribute item “address” and attribute information “A city” are registered in association with each other. Such information indicates that, for example, the user's gender indicated by the user ID “ID # 01” is male, the age is included in the thirties, and the address is A city. In addition to the attribute items and attribute information shown in FIG. 3, arbitrary attribute items and attribute information may be registered in the attribute database 31. In the attribute database 31, it is not always necessary to register attribute information for all attribute items. Only attribute information registered by a user or estimated from a user's behavior history is registered. Also good.

  Returning to FIG. 2, the description will be continued. The control unit 40 is a controller. For example, various programs stored in a storage device inside the information providing apparatus 10 are stored in a RAM or the like by a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). Is implemented as a work area. The control unit 40 is a controller, and may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

  As illustrated in FIG. 2, the control unit 40 includes an attribute collection unit 41, a reception unit 42, an extraction unit 43, a generation unit 44, a provision unit 45, and an output unit 46. The attribute collection unit 41 collects attribute information registered in the attribute database 31. For example, when the attribute collection unit 41 receives registration of attribute information from the user, the attribute collection unit 41 acquires the IDFA or ADID of the terminal device 100 used by the user as a user ID, and each attribute information that has received the acquired user ID and registration. Are registered in the attribute database 31 in association with each other. The attribute collection unit 41 estimates not only the attribute information registered by the user but also the user attribute information based on the user's behavior history, and registers the estimated user attribute information in the attribute database 31. May be. Any known technique can be applied to such collection and estimation of attribute information.

  The receiving unit 42 receives a plurality of user IDs from the client server 50. For example, when receiving a plurality of user IDs from the client server 50, the receiving unit 42 determines whether the number of received user IDs is equal to or greater than a predetermined threshold. And the reception part 42 outputs the received user ID to the extraction part 43, when the number of received user ID is more than a predetermined threshold value. On the other hand, when the number of received user IDs is less than the predetermined threshold, the reception unit 42 does not notify the extraction unit 43 of the user IDs and notifies the client server 50 that the number of user IDs is insufficient. Notify For example, the reception unit 42 indicates that the number of user IDs is insufficient when the number of user IDs registered in the attribute database 31 is less than a predetermined threshold among the received user IDs. The client server 50 may be notified.

  The extraction unit 43 refers to the attribute database 31 and extracts attribute information associated with the user ID received from the client server 50 from the attribute database 31. For example, the extraction unit 43 specifies the same user ID as the user ID received from the reception unit 42 among the user IDs registered in the attribute database 31. Then, the extraction unit 43 extracts attribute information associated with the identified user ID, and outputs the extracted attribute information to the generation unit 44.

  For example, the extraction unit 43 may execute the following limiting process in order to prevent identification of personal information. For example, when the same user ID as the user ID received from the reception unit 42 is registered in the attribute database 31 more than the predetermined number, the extraction unit 43 uses the same user ID as the user ID received from the reception unit 42. A predetermined number of user IDs may be identified from the IDs, and attribute information associated with the identified user IDs may be extracted. Further, the extraction unit 43 may randomly select a predetermined number of user IDs from the user IDs received from the reception unit 42 and extract attribute information associated with the selected user IDs from the attribute database 31. . Moreover, the extraction part 43 may change the number of user IDs selected from the user ID received from the reception part 42 at random each time.

  The generation unit 44 generates an attribute report C10 based on the number of common attribute information among the attribute information associated with the plurality of user IDs received from the client. For example, the generation unit 44 may generate an attribute report C10 indicating the distribution of the number of common attribute information, or may generate information indicating a ratio based on the number of common attribute information. For example, the generation unit 44 may generate, for each item, an attribute report C10 based on the number of common attribute information among the attribute information associated with a plurality of user IDs received from the client. When the generation unit 44 generates the attribute report C10, the generation unit 44 discards the user ID by deleting the user ID data received from the client server 50.

  Further, for example, the generation unit 44 associates the number of common attribute information among the attribute information associated with the plurality of user IDs received last time from the client and the plurality of user IDs newly received from the client. You may generate | occur | produce the attribute report C10 which shows a change with the number of common attribute information among attribute information. For example, the generation unit 44 generates an attribute report C10 indicating a transition between the user's gender ratio indicated by the user ID received from the client server 50 last time and the user's gender ratio indicated by the user ID newly received from the client server 50. May be generated.

  In addition, for example, when the generation unit 44 receives designation of a plurality of user IDs and a group to which the user indicated by each user ID belongs from the client, the user belonging to the group is designated for each designated group. An attribute report C10 based on the number of common attribute information among the attribute information associated with the user ID may be generated. Thus, when generating the attribute report C10 for each group, for example, the reception unit 42 may determine for each group whether or not the number of user IDs is equal to or greater than a predetermined threshold. It may be determined whether the number of user IDs included in the group is equal to or greater than a predetermined threshold. Moreover, the extraction part 43 may perform the limitation process mentioned above for every group, and may execute all the groups collectively.

  The providing unit 45 provides the attribute report C <b> 10 generated by the generating unit 44 to the client server 50. Specifically, the providing unit 45 uses the attribute report C10 generated by the generating unit 44 as information based on the number of common attribute information among the attribute information associated with all user IDs received from the client server 50. As offered. For example, when the attribute report C10 is generated from the attribute information associated with 600 user IDs out of 1000 user IDs received from the client server 50, the providing unit 45 generates the generated attribute report. C10 is provided to the client server 50 as the attribute report C10 generated from the attribute information associated with 1000 user IDs.

  If a more specific example is demonstrated, the production | generation part 44 will produce | generate the attribute report C10 containing the information which shows the ratio of the number of common attribute information, without including the number of common attribute information. In such a case, the providing unit 45 provides the attribute report C10 generated by the generating unit 44 to the client server 50 as it is. On the other hand, for example, when the attribute report C <b> 10 including the number of common attribute information is generated, the providing unit 45 receives the number of attribute information used when using the attribute report C <b> 10 and the client server 50. The number of attribute information included in the attribute report C10 is corrected based on the ratio with the number of user IDs. Then, the providing unit 45 provides the client server 50 with the attribute report C10 in which the number of attribute information is corrected.

  The output unit 46 outputs a warning to the administrator of the information providing apparatus 10, the client server 50, or the like when the frequency of receiving a plurality of user IDs from the client exceeds a predetermined threshold. For example, the output unit 46 monitors the frequency at which the user ID is received from the client server 50, the fluctuation of the user ID received from the client server 50, etc., and determines whether the monitored frequency, fluctuation, etc. satisfy a predetermined condition. . As a more specific example, the output unit 46 determines whether or not the frequency of accepting the user ID from the client server 50 has exceeded a predetermined threshold. Further, the output unit 46 determines whether or not the plurality of user IDs continuously received from the client server 50 have been changed by half. Then, when the monitored frequency, fluctuation, or the like satisfies a predetermined condition, the output unit 46 outputs a notification that the client is about to acquire personal information to the administrator of the information providing apparatus 10. The output unit 46 may output a warning to the client server 50 and stop generating the attribute report C10 until a predetermined condition is satisfied.

[3. Example of attribute report)
Next, an example of the attribute report C10 generated by the information providing apparatus 10 will be described with reference to FIG. FIG. 4 is a diagram illustrating an example of an attribute report generated by the information providing apparatus according to the embodiment. In the example illustrated in FIG. 4, an example of the attribute report C10 generated by the information providing apparatus 10 is shown together with a Venn diagram indicating the range of user IDs managed by the information providing apparatus 10 and the range of user IDs received from the client server 50. Described.

  For example, in the attribute database 31 included in the information providing apparatus 10, user IDs in the range shown in FIG. 4A are registered in association with attribute information. When the user ID in the range shown in FIG. 4B is received from the client server 50, the information providing apparatus 10 receives the user ID received from the client server 50 as shown in FIG. Of the IDs, the attribute report C10 is generated from the attribute information associated with the user ID common to the user ID registered in the attribute database 31.

  However, when the attribute report C10 including the number of common attribute information among the attribute information associated with the common user ID is generated, the user ID transmitted to the information providing apparatus 10 is changed each time. This may increase the possibility of specifying attribute information corresponding to the user ID. Therefore, the information providing apparatus 10 outputs the attribute report C10 of attribute information associated with a common user ID as an attribute report of attribute information associated with all received user IDs.

  For example, as shown in FIG. 4D, when the information providing apparatus 10 generates a graph indicating the number of attribute information having a common age, the ratio of the common user ID and the received user ID is used. The total number of attribute information on the graph may be adjusted to the number of received user IDs by correcting the number of attribute information having a common age. Here, in the example shown in (D) of FIG. 4, as an example of the graph included in the attribute report C10, a graph indicating the number of users in each age (the number of common attribute information) is described. However, the present invention is not limited to this. For example, the information providing apparatus 10 generates a graph indicating the ratio of users belonging to each age to all users, for example, 10% of teenage users, 25% of 20's users, etc. Also good.

  Further, for example, as shown in (E) of FIG. 4, when the information providing apparatus 10 outputs a graph or a numerical value indicating a ratio such as a user's gender ratio indicated by the user ID, the common user ID is You may output as a value and a graph which show the gender ratio of the user which all the user IDs received from the client server 50 show instead of the value and graph which show the gender ratio of the user to show.

  Further, for example, when the information providing apparatus 10 generates a graph indicating the number of accessed users and the change in the sex ratio, as illustrated in FIG. As in the case of generating the graph to be shown, the number of attribute information on the graph is matched with the number of received user IDs. On the other hand, the information providing apparatus 10 may determine the length of the gender ratio area for each date by directly adopting the gender ratio of the user indicated by the common user ID.

  Further, for example, the information providing apparatus 10 may generate the attribute report C10 in which the respective graphs described in (D) to (F) in FIG. 4 are arranged and arranged, for example, (D) to (F) in FIG. ) The attribute report C <b> 10 that can switch each graph described in () with a tab may be generated. Further, such an attribute report C10 may be generated as content displayed on a browser used by the client, or may be content distributed to the client in a predetermined data format.

  Thus, the information providing apparatus 10 does not output the content of the attribute information as it is, but outputs the attribute report C10 based on the number of common attribute information among the attribute information associated with the received user ID. . For this reason, the information providing apparatus 10 categorizes the attribute information associated with the received user ID based on commonality, and calculates the number and ratio of each group, thereby associating with the attribute information. The user ID information can be hidden.

  The information providing apparatus 10 groups the attribute information associated with the received user ID based on the commonality for each item. When such processing is executed, the attribute information of each user is grouped for each item, so the information providing apparatus 10 specifies the attribute information of each user for each item from the attribute report C10. While making the act difficult, it is possible to present, for each item, information indicating what number of users having what attributes are accessed.

  In addition, the information providing apparatus 10 outputs the attribute report C10 as a value or graph indicating the male / female ratio of users indicated by all user IDs received from the client server 50. As a result, the information providing apparatus 10 can generate the attribute report C10 while hiding which user ID is registered in the attribute database 31 among the user IDs received from the client server 50.

[4. Processing flow of information providing device]
Next, an example of a procedure of information providing processing executed by the information providing apparatus 10 will be described with reference to FIG. FIG. 5 is a flowchart illustrating an example of a flow of information providing processing executed by the information providing apparatus according to the embodiment. For example, the information providing apparatus 10 receives a plurality of user IDs from the client server 50 (step S101). In such a case, the information providing apparatus 10 extracts attribute information associated with the accepted user ID from the attribute database 31 (step S102). And the information provision apparatus 10 calculates the number of common attribute information among the extracted attribute information for every item, and produces | generates the attribute report C10 based on the calculated number (step S103). The information providing apparatus 10 provides the generated attribute report C10 to the client server 50 (step S104), discards the user ID received from the client server 50 (step S105), and ends the process.

[5. (Modification)
In the above, an example of the information providing process by the information providing apparatus 10 has been described. However, the embodiment is not limited to this. Hereinafter, the variation of the information provision process which the information provision apparatus 10 performs is demonstrated.

[5-1. (Attribute report log)
For example, the information providing apparatus 10 may hold a log of the attribute report C10 provided to the client. Then, the information providing apparatus 10 may provide a new attribute report C10 including the analysis result of the log of the attribute report C10 to the client. For example, the information providing apparatus 10 may provide the client with an attribute report C10 indicating a change in the number of user IDs, a change in the number of common attribute information, and the like.

  Further, for example, the information providing apparatus 10 analyzes the change in the number of user IDs and the number of common attribute information during the PR (Public Relations) campaign of the service provided by the client, and analyzes the analysis result as a PR campaign. Information indicating the effect of the above may be provided to the client. Further, for example, the information providing apparatus 10 acquires the user ID of a user who has selected a certain advertisement content, and the attribute report C10 based on the number of common attribute information among the attribute information associated with the acquired user ID. , The configuration of the user who selected the advertisement may be presented to the client. That is, the information providing apparatus 10 may generate the attribute report C10 that serves as an index of the advertising effect.

[5-2. User ID log]
Further, the information providing apparatus 10 may acquire a log of the user ID received from the client when the client has received permission from the user to provide the user ID to the information providing apparatus 10. Further, the information providing apparatus 10 may provide various services based on the obtained analysis result of the user ID. For example, the information providing apparatus 10 specifies a user ID that is not registered in the attribute database 31 among the user IDs received from the client, and proposes to register the attribute to the user indicated by the specified user ID. May be sent.

  The information providing apparatus 10 specifies the frequency of creating the attribute report C10, the fluctuation of the user ID, and the like from the log of the attribute report C10 and the log of the user ID. It may be determined whether or not the contents are being illegally acquired.

[5-3. (User permission)
Note that when realizing the above-described information providing process, the client may receive permission from the user to use the user ID for the above-described information providing process. For example, the client may receive permission from the user to provide the user ID to the external server when performing access analysis.

[5-4. Device configuration〕
Note that the information providing apparatus 10 may be communicably connected to an arbitrary number of terminal apparatuses 100 or may be communicably connected to an arbitrary number of client servers 50. Further, for example, it may be connected to a log server that manages the user's behavior history, and may have a function of estimating user attribute information based on the behavior history managed by the log server.

  Further, the information providing apparatus 10 may be realized by a front-end server that exchanges information with the client server 50 and a back-end server that generates the attribute report C10. In such a case, the front end server includes the receiving unit 42, the providing unit 45, and the output unit 46 shown in FIG. Further, the back-end server includes the attribute database 31, the attribute collection unit 41, the extraction unit 43, and the generation unit 44 illustrated in FIG. When the above-described information providing process is realized by such a configuration, the front-end server operates as an API that provides the attribute report C10 to the client server 50. Further, the back-end server is arranged in the above-described secure area in order to keep personal information secure, and manages the attribute database C31 in an encrypted state.

  In such a case, the front-end server performs encrypted communication with the back-end server and transmits the encrypted user ID. Then, the back-end server decrypts the encrypted user ID, generates an attribute database C31 from the attribute information associated with the decrypted user ID, and transmits the generated attribute database C31 to the front-end server. As a result of such processing, the back-end server can conceal the contents of the attribute database C31 from the front-end server side, so that it is possible to further increase security when managing personal information.

[5-5. Others]
In addition, among the processes described in the above embodiment, all or part of the processes described as being automatically performed can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method. In addition, the processing procedures, specific names, and information including various data and parameters shown in the document and drawings can be arbitrarily changed unless otherwise specified. For example, the various types of information illustrated in each drawing is not limited to the illustrated information.

  Further, each component of each illustrated apparatus is functionally conceptual, and does not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured. For example, the reception unit 42 and the output unit 46 illustrated in FIG. 2 may be integrated.

  In addition, the above-described embodiments can be appropriately combined within a range in which processing contents do not contradict each other.

[5-6. program〕
Further, the terminal device 100 according to the embodiment described above is realized by a computer 1000 having a configuration as shown in FIG. 6, for example. FIG. 6 is a diagram illustrating an example of a hardware configuration. The computer 1000 is connected to an output device 1010 and an input device 1020, and an arithmetic device 1030, a primary storage device 1040, a secondary storage device 1050, an output IF (Interface) 1060, an input IF 1070, and a network IF 1080 are connected via a bus 1090. Have

  The arithmetic device 1030 operates based on a program stored in the primary storage device 1040 and the secondary storage device 1050, a program read from the input device 1020, and the like, and executes various processes. The primary storage device 1040 is a memory device such as a RAM that temporarily stores data used by the arithmetic device 1030 for various arithmetic operations. The secondary storage device 1050 is a storage device in which data used for various calculations by the calculation device 1030 and various databases are registered, and is realized by a ROM (Read Only Memory), HDD, flash memory, or the like.

  The output IF 1060 is an interface for transmitting information to be output to an output device 1010 that outputs various types of information such as a monitor and a printer. For example, USB (Universal Serial Bus), DVI (Digital Visual Interface), This is realized by a standard connector such as HDMI (registered trademark) (High Definition Multimedia Interface). The input IF 1070 is an interface for receiving information from various input devices 1020 such as a mouse, a keyboard, and a scanner, and is realized by a USB or the like, for example.

  The input device 1020 includes, for example, an optical recording medium such as a CD (Compact Disc), a DVD (Digital Versatile Disc), and a PD (Phase change rewritable disk), a magneto-optical recording medium such as an MO (Magneto-Optical disk), and a tape. It may be a device that reads information from a medium, a magnetic recording medium, a semiconductor memory, or the like. The input device 1020 may be an external storage medium such as a USB memory.

  The network IF 1080 receives data from other devices via the network N and sends the data to the arithmetic device 1030, and transmits data generated by the arithmetic device 1030 to other devices via the network N.

  The arithmetic device 1030 controls the output device 1010 and the input device 1020 via the output IF 1060 and the input IF 1070. For example, the arithmetic device 1030 loads a program from the input device 1020 or the secondary storage device 1050 onto the primary storage device 1040, and executes the loaded program.

  For example, when the computer 1000 functions as the terminal device 100, the arithmetic device 1030 of the computer 1000 implements the function of the control unit 40 by executing a program loaded on the primary storage device 1040.

[6. effect〕
As described above, when a plurality of user IDs are received from the client, the information providing apparatus 10 refers to the attribute database 31 that stores the user ID and attribute information in association with each other, and refers to the plurality of user IDs received from the client. The attribute report C10 is generated based on the number of common attribute information among the attribute information associated with. Then, the information providing apparatus 10 provides the generated attribute report C10 to the client. For this reason, the information providing apparatus 10 outputs information that abstracts the correspondence between the attribute information and the user ID (that is, personal information), so that it is collected for use in a predetermined service while preventing the leakage of personal information. The user's attribute information can be used for other services.

  In addition, the information providing apparatus 10 generates an attribute report C10 indicating the distribution of the number of common attribute information. Moreover, the information provision apparatus 10 produces | generates the attribute report C10 which shows the ratio based on the number of common attribute information. In addition, the information providing apparatus 10 uses the common attribute information among the attribute information associated with the user ID previously received from the client and the common attribute information associated with the user ID newly received from the client. An attribute report C10 indicating a change from the number of attribute information to be generated is generated. For this reason, since the information providing apparatus 10 can prevent the estimation of the correspondence between the attribute information and the user ID, the user's attribute information collected for use in a predetermined service is prevented while preventing leakage of personal information. Can be used for other services.

  Further, the information providing apparatus 10 refers to the attribute database 31 that stores attribute information for each predetermined item, and is based on the number of common attribute information among attribute information associated with a plurality of user IDs received from the client. An attribute report C10 is generated for each item. For this reason, the information providing apparatus 10 can further make it difficult to estimate the correspondence between the attribute information and the user ID. Therefore, while preventing leakage of personal information, the information providing apparatus 10 collects the user information collected for use in a predetermined service. The attribute information can be used for other services.

  In addition, the information providing apparatus 10 identifies user IDs that are common to a plurality of user IDs received from the client among the user IDs registered in the attribute database 31, and includes attribute information associated with the identified user IDs. An attribute report C10 based on the number of common attribute information is generated. Then, the information providing apparatus 10 outputs the generated attribute report C10 as information based on the number of common attribute information among the attribute information associated with all user IDs received from the client. For this reason, the information providing apparatus 10 can further make it difficult to estimate the correspondence between the attribute information and the user ID. Therefore, while preventing leakage of personal information, the information providing apparatus 10 collects the user information collected for use in a predetermined service. The attribute information can be used for other services.

  In addition, when the information providing apparatus 10 accepts designation of a plurality of user IDs and a group to which the user indicated by each user ID belongs, the user ID of the user belonging to the group is assigned to each designated group. An attribute report C10 based on the number of common attribute information among the associated attribute information is generated. For this reason, the information provision apparatus 10 can generate | occur | produce the attribute report C10 which shows what kind of user is receiving the service of a client for every group (each segment).

  The information providing apparatus 10 refers to the attribute database 31 that stores an identifier assigned to the terminal apparatus 100 used by the user as the user ID. For this reason, the information provision apparatus 10 can acquire a user's identifier easily.

  In addition, when the information providing apparatus 10 generates the attribute report C10 based on the number of common attribute information among the attribute information associated with the plurality of user IDs received from the client, the information providing apparatus 10 receives the plurality of users received from the client. Discard the ID. For this reason, the information providing apparatus 10 can prevent leakage of personal information.

  Further, the information providing apparatus 10 outputs a warning when the frequency of receiving a plurality of user IDs from the client exceeds a predetermined threshold. For this reason, the information providing apparatus 10 can prevent an act of illegally acquiring the attribute information registered in the attribute database 31.

  As described above, some of the embodiments of the present application have been described in detail based on the drawings. It is possible to implement the present invention in other forms with improvements.

  Moreover, the above-mentioned “section (module, unit)” can be read as “means”, “circuit”, and the like. For example, the distribution unit can be read as distribution means or a distribution circuit.

DESCRIPTION OF SYMBOLS 10 Information provision apparatus 20 Communication part 30 Storage part 31 Attribute database 40 Control part 41 Attribute collection part 42 Reception part 43 Extraction part 44 Generation part 45 Provision part 46 Output part 50 Client server 100 Terminal device

Claims (12)

In the case where a plurality of identifiers of a terminal device that provides a service provided by the client are received from the client, the attribute information indicates the attribute of the user who uses the terminal device, and the web access via the terminal device Referring to the storage device that stores the attribute information based on the history and the identifier of the terminal device in association with each other, from the attribute information associated with some identifiers among the plurality of identifiers received from the client, A generating unit that generates information based on the number of attribute information to be
An information providing apparatus comprising: a providing unit that provides information generated by the generating unit to the client as information generated from attribute information associated with all identifiers received from the client. The information providing apparatus according to claim 1, wherein the generation unit generates information indicating a distribution of the number of common attribute information. The information providing apparatus according to claim 1, wherein the generation unit generates information indicating a ratio based on the number of common attribute information. Of the attribute information associated with the plurality of identifiers previously received from the client, the generation unit includes the number of common attribute information and attribute information associated with the plurality of identifiers newly received from the client. The information providing apparatus according to claim 1, wherein information indicating a change from the number of common attribute information is generated. The generation unit refers to a storage device that stores, for each predetermined item, attribute information indicating the user and the user's attribute as the storage device, and is associated with a plurality of identifiers received from the client. The information providing apparatus according to claim 1, wherein information based on the number of common attribute information among the attribute information is generated for each predetermined item. The generation unit specifies an identifier common to a plurality of identifiers received from the client among the identifiers stored in the storage device, and common attribute information among attribute information associated with the identified identifier Generates information based on the number of
The said provision part provides the information which the said production | generation part produced | generated as information based on the number of common attribute information among the attribute information matched with all the identifiers received from the said client. The information provision apparatus as described in any one of 1-5. When the generation unit receives a specification of the plurality of identifiers and a group to which a user indicated by each identifier belongs from the client, the generation unit includes, for each specified group, an identifier of a user belonging to the group. The information providing apparatus according to claim 1, wherein information based on the number of common attribute information among the associated attribute information is generated. The generation unit refers to a storage device that stores an identifier assigned to a terminal device used by the user and attribute information of the user in association with each other as the user identifier. The information providing apparatus according to any one of claims 1 to 7. When the generation unit generates information based on the number of common attribute information among the attribute information associated with the plurality of identifiers received from the client, the generation unit discards the plurality of identifiers received from the client. The information providing apparatus according to any one of claims 1 to 8, wherein: The information provision according to any one of claims 1 to 9, further comprising: an output unit that outputs a warning when a frequency at which the plurality of identifiers are received from the client exceeds a predetermined threshold. apparatus. An information providing method executed by the information providing apparatus,
In the case where a plurality of identifiers of a terminal device that provides a service provided by the client are received from the client, the attribute information indicates the attribute of the user who uses the terminal device, and the web access via the terminal device Referring to the storage device that stores the attribute information based on the history and the identifier of the terminal device in association with each other, from the attribute information associated with some identifiers among the plurality of identifiers received from the client, Generating step for generating information based on the number of attribute information to be performed;
And a providing step of providing the information generated in the generating step to the client as information generated from attribute information associated with all identifiers received from the client. On the computer,
In the case where a plurality of identifiers of a terminal device that provides a service provided by the client are received from the client, the attribute information indicates the attribute of the user who uses the terminal device, and the web access via the terminal device Referring to the storage device that stores the attribute information based on the history and the identifier of the terminal device in association with each other, from the attribute information associated with some identifiers among the plurality of identifiers received from the client, Generation procedure for generating information based on the number of attribute information to be
An information providing program for executing the providing procedure to provide the information generated in the generating procedure to the client as information generated from attribute information associated with all identifiers received from the client.

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