JP7348241B2 - Information processing device, information processing method, and information processing program - Google Patents

Description

The present invention relates to an information processing device, an information processing method, and an information processing program.

2. Description of the Related Art Conventionally, for example, there has been an information processing apparatus that provides various services to a user and estimates the user's characteristics by analyzing the user's attributes obtained by using such services. This type of information processing apparatus may optimize the services it provides based on estimated user characteristics.

JP2018-032252A

However, the above-described techniques do not necessarily allow accurate understanding of user characteristics. For example, the above-mentioned conventional technology only obtains attribute information regarding the user's gender and hobbies, and unambiguous response information such as liking or disliking specific information, so it is difficult to accurately grasp the user's characteristics. However, there was room for improvement.

The present application has been made in view of the above, and aims to provide an information processing device, an information processing method, and an information processing program that can accurately grasp user characteristics.

The information processing device according to the present application includes an acquisition section, an assignment section, and an update section. The acquisition unit acquires user characteristic information. The assigning unit assigns a score to the user in a period according to the content of evaluation for predetermined feature information among the user's feature information. The updating unit updates the user's characteristic information based on the score assigned by the assignment unit.

According to one aspect of the embodiment, it is possible to accurately grasp the user's characteristics.

FIG. 1 is a diagram illustrating an example of information processing according to an embodiment. FIG. 2 is a diagram illustrating a configuration example of an information processing system according to an embodiment. FIG. 3 is a block diagram illustrating a configuration example of an information processing apparatus according to an embodiment. FIG. 4 is a block diagram illustrating a configuration example of the learning section according to the embodiment. FIG. 5 is a diagram illustrating an example of shared information according to the embodiment. FIG. 6 is a diagram illustrating an example of service information according to the embodiment. FIG. 7 is a diagram illustrating an example of model program information according to the embodiment. FIG. 8 is a diagram illustrating an example of transition information according to the embodiment. FIG. 9A is a diagram (part 1) illustrating a specific example of provision processing according to the embodiment. FIG. 9B is a diagram (part 2) illustrating a specific example of the provision process according to the embodiment. FIG. 10 is a flowchart showing a processing procedure executed by the information processing apparatus according to the embodiment. FIG. 11 is a flowchart showing the processing procedure executed by the learning section according to the embodiment. FIG. 12 is a hardware configuration diagram showing an example of a computer that implements the functions of the information processing device according to the embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An information processing apparatus, an information processing method, and an information processing program according to the present application (hereinafter referred to as "embodiments") will be described in detail below with reference to the drawings. Note that the information processing apparatus, information processing method, and information processing program according to the present application are not limited to this embodiment. Moreover, each embodiment can be combined as appropriate within the range that does not conflict with the processing contents. Further, in each of the embodiments below, the same parts are given the same reference numerals, and redundant explanations will be omitted.

[1. An example of information processing]
First, an example of information processing according to the embodiment will be described using FIG. 1. FIG. 1 is a diagram illustrating an example of information processing according to an embodiment. In FIG. 1, an information processing device 1 according to the present application included in an information processing system S includes a model for estimating the characteristics of the user U using the attributes of the user U, and a model for estimating the characteristics of the user U using the attributes, and the characteristics of the user U estimated using the above attributes. Execute processing to acquire feature information including at least one of the estimation results for each from different services, extract the temporal transition of each acquired characteristic information, and also provide the temporal transition of each extracted characteristic information. Here is an example.

As shown in FIG. 1, the information processing system S according to the embodiment includes an information processing device 1, a service providing server 10 (10-1, 10-2, 10-3), and a user terminal 100.

User terminal 100 is a terminal device owned by user U. The user U uses the service Y (Y1, Y2, Y3) provided by each service providing server 10 by operating the user terminal 100 and accessing the service providing server 10 (steps S1-1, S1-2). , S1-3).

The service providing server 10 is a server device that provides various services Y to the user U. The service Y provided by the service providing server 10 is, for example, a service that distributes information via various applications installed on the user terminal 100. Examples of such services include news provision services, auction services, weather forecast services, shopping services, financial transaction (stock trading, etc.) services, route search services, map provision services, travel services, restaurant introduction services, and blogs. There are services etc. Note that the service Y is not limited to a service in which information is distributed via an application, but may be a service that provides information to the user U via a browser, for example.

Furthermore, each service providing server 10 estimates the characteristics of the user U by analyzing the attributes of the user U who used the service Y. Specifically, each service providing server 10 uses at least one of a model that estimates the characteristics of the user U using the attributes of the user U, and an estimation result regarding the characteristics of the user U estimated using the attributes of the user U. (steps S2-1, S2-2, S2-3).

Note that the attributes referred to here are the determined attributes of the user U or the characteristics of the user U, such as behavioral information regarding the behavior of the user U when using the service Y, such as search logs and purchase history, This is a concept that includes demographic attributes such as gender, age, address, etc., and psychographic attributes such as life cycle, values, personality, purchasing motives, etc.

Further, the characteristics of the user U are the characteristics of the user U that are estimated by including various attributes of the user U, or the attributes that are estimated, such as the user's interests, hobbies and preferences, and behavior. Including patterns (search behavior, purchasing behavior, etc.).

Moreover, the above-mentioned model in the feature information can input the attributes of the user U and output the features of the user U as a score, for example. Further, the above-mentioned estimation result in the feature information is, for example, a score output by the model. Note that the estimation result may be information that is not based on a model, for example, information that simply digitizes the attributes of the user U (for example, a score that increases or decreases depending on the number of searches). In the example shown in FIG. 1, service Y1 as a search service uses a model "Fishing Enthusiast" of a user U who is presumed to be a fishing enthusiast who has searched for fishing information such as fishing spots, and a score "0.5" which is the estimation result. ” is generated.

In addition, service Y2 as a mountain climbing tour service generates characteristic information including the model "climbing" of user U, who is presumed to be a mountain climbing enthusiast who viewed information about mountain climbing tours, and the score "0.4" which is the estimation result. do. In addition, service Y3 as a ticket sales service generates feature information including the model "movie lover" of the user U who purchased the movie ticket and is estimated to be a movie lover, and the score "0.9" which is the estimation result. . Note that in FIG. 1, the higher the score, the stronger the characteristics of the user U are with respect to the thing indicated by the model (for example, the user U has a strong interest, preference, and relevance).

Further, although the score described above is a continuous value, it may be a discrete value, for example. Specifically, whether or not a person likes fishing may be expressed by a score of a discrete value (ie, a Boolean value) of either "1" (true) or "0" (false). Alternatively, the estimation result is not limited to the score shown as an example, but may be text information.

Here, conventionally, services Y1, Y2, and Y3 have features that include a model that estimates the characteristics of user U using attribute information regarding the user's gender and hobbies, unique answer information such as liking or disliking specific information, etc. Generating information.

For this reason, the services Y1, Y2, and Y3 are not always able to accurately grasp user characteristics, and there is room for improvement.

Therefore, the information processing device 1 according to the embodiment is configured so that the services Y1, Y2, and Y3 can accurately grasp the user's characteristics. Specifically, the information processing device 1 according to the embodiment, when the services Y1, Y2, and Y3 acquire response information to the user's specific information, also acquires information on periodic changes to the specific information. . Note that the information processing device 1 according to the embodiment is not limited to acquiring feature information including the above-described model and a score that is an estimation result, but also obtains feature information including only a model or feature information including only a score. may be obtained.

Subsequently, the information processing device 1 extracts the temporal transition of the characteristic information for each acquired characteristic information (step S4). For example, as shown in FIG. 1, the information processing device 1 extracts the temporal changes in the scores of the above-mentioned models "fishing lover," "climbing lover," and "movie lover" of the user U specified by each service Y. do.

Then, when there is a request from each service Y side, the information processing device 1 also provides the temporal transition of each extracted feature information (steps S5-1, S5-2, S5-3). For example, as shown in FIG. 1, the information processing device 1 generates a graph that allows simultaneous confirmation of the temporal changes in scores for the models "fishing lover", "climbing lover", and "movie lover" of a certain user U, and Provide to service Y.

Note that the graph here is just an example, and it is only necessary that the temporal changes of each feature information can be confirmed at the same time. For example, a tag cloud related to user U or a video showing changes in the avatar may be provided. A specific example of such information provision will be described later with reference to FIGS. 9A and 9B.

As described above, in the information processing method according to the embodiment, the user's characteristic information is acquired, and the user's score is assigned for a period according to the content of the evaluation for predetermined characteristic information among the user's characteristic information. The user's characteristic information is updated based on the obtained score.

Therefore, according to the information processing method according to the embodiment, it is possible to accurately grasp the user's characteristics.

Hereinafter, the information processing device 1 that performs the above information processing and the information processing system S including the information processing device 1 will be described in detail.

[2. Configuration of information processing system S]
Next, the configuration of the information processing system S according to the embodiment will be described using FIG. 2. FIG. 2 is a diagram showing a configuration example of the information processing system S according to the embodiment. As illustrated in FIG. 2, the information processing system S according to the embodiment includes an information processing device 1, a plurality of service providing servers 10-1 to 10-n, a plurality of business terminals 20, and a plurality of user terminals. 100-1 to 100-n.

These various devices are connected via a network N so that they can communicate by wire or wirelessly. The network N is a communication network such as a LAN (Local Area Network), a WAN (Wide Area Network), a telephone network (mobile phone network, fixed telephone network, etc.), a local IP (Internet Protocol) network, the Internet, or the like. The network N may include a wired network or a wireless network.

Further, in FIG. 2, the plurality of business terminals 20 are shown as being directly connected to the service providing servers 10-1 to 10-n, but the business terminals 20 are connected directly to the service providing servers 10-1 to 10-n. 10-n, and does not limit the connection form.

The user terminal 100 is a terminal device used by the user U, as described above. The user terminal 100 is, for example, an information processing device such as a mobile phone including a smartphone, a tablet terminal, a desktop PC, a notebook PC, or a PDA (Personal Digital Assistant). The user terminal 100 also includes a wearable device that is a glasses-shaped or watch-shaped information processing terminal.

The user terminal 100 acquires various information in response to operations by the user U and functions of the user terminal 100 (for example, a function to execute an application for using service Y, a browser function, etc.). Generate and send information according to the information. For example, the user terminal 100 accesses the site of the service Y provided by the service providing server 10 via the network N. Then, when the user U specifies, for example, information necessary to receive the service, the user terminal 100 transmits a request for service provision to the service providing server 10.

The information processing device 1 is a server device that functions as a host server of the service providing server 10. The information processing device 1 acquires feature information from each service providing server 10 to generate shared information, and extracts temporal changes for each feature information. Further, the information processing device 1 also provides the temporal transition of each extracted characteristic information to the service providing server 10 side.

The service providing server 10 is a server device that provides the service Y to the user U as described above. For example, the service providing server 10 analyzes the attributes of the user U who used the service Y to generate characteristic information. Further, the service providing server 10 requests the information processing device 1 to provide information. The request for the provision information is transmitted from the service providing server 10, for example, by the operator of service Y operating the operator terminal 20 connected to the service providing server 10.

The business terminal 20 is a terminal device used by a business that operates service Y. The business terminal 20 is, for example, a desktop PC, a notebook PC, or the like, but may also be a mobile phone, a tablet terminal, a PDA, a wearable device, or the like. The business terminal 20 requests the information processing device 1 to provide information by specifying a specific user U or the like from the shared information usage service screen provided by the information processing device 1, for example.

In the information processing system S, the information processing device 1, the plurality of service providing servers 10-1 to 10-n, and the plurality of company terminals 20 are configured to be owned by one company, for example. In other words, one business operator can provide multiple services Y. In addition, one business operator aggregates characteristic information generated by each service Y into the information processing device 1 as shared information, and acquires provided information based on the shared information, for example, for marketing of user U in each service Y. Used for research, etc.

Note that the information processing device 1 and the plurality of service providing servers 10-1 to 10-n may be configured to be owned by different businesses. In other words, the other service Y seen from a certain service Y of a certain business operator may be another service Y of the same business operator, or may be a service Y of another business operator. Furthermore, the plurality of service providing servers 10-1 to 10-n may be configured to be owned by different businesses. Furthermore, in addition to the information processing system S described above, a server of a business operator that only uses provided information may be connected.

Note that although FIG. 2 shows a case where the information processing device 1 is configured separately from the service providing server 10 and has the functions of generating shared information, extracting temporal changes, and providing information, For example, one of the service providing servers 10 may perform some or all of the functions of the information processing device 1 instead.

Further, in FIG. 2, the information processing device 1 has all the functions of generating shared information, extracting temporal changes, and providing information, but for example, if a plurality of information processing devices 1 It is also possible to share the functions.

[3. Information processing device 1]
Next, a configuration example of the information processing device 1 will be described using FIGS. 3 and 4. FIG. 3 is a block diagram showing a configuration example of the information processing device 1 according to the embodiment, and FIG. 4 is a block diagram showing a configuration example of the learning section 45 according to the embodiment. Note that FIGS. 3 and 4 only show the components necessary for explaining the information processing device 1, and omit descriptions of general components.

As shown in FIG. 3, the information processing device 1 includes a communication section 2, a storage section 3, and a control section 4. Note that the information processing device 1 includes an input unit (for example, a keyboard, a mouse, etc.) that accepts various operations from an administrator using the information processing device 1, and a display unit (for example, a liquid crystal display, etc.) for displaying various information. ).

(About communication department 2)
The communication unit 2 is realized by, for example, a NIC (Network Interface Card). The communication unit 2 is connected to the network N by wire or wirelessly, and transmits and receives information between the service providing server 10, the operator terminal 20 connected to the service providing server 10, and the user terminal 100 via the network N. I do.

(About storage unit 3)
The storage unit 3 is realized by, for example, a semiconductor memory element 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 the example of FIG. Shared information 31, service information 32, model program information 33, and transition information 34 are stored.

(About shared information 31)
The shared information 31 is information that includes characteristic information acquired from the service providing server 10. FIG. 5 is a diagram showing an example of the shared information 31. As shown in FIG. 5, the shared information 31 is, for example, a table in which the column item is "UID" and the row item is "characteristic information." Furthermore, a score, which is the output of the model in the feature information, is input to each data item of each set of column item and row item.

“UID” is identification information that identifies user U. “Feature information” is information that includes at least one of a model and a score generated by each of the service providing servers 10, and is information that indicates the characteristics of the user U. In the example shown in FIG. 5, a model name such as "fishing lover" is input into each item of "feature information".

As shown in FIG. 5, the shared information 31 is information including a "UID" and a score of "feature information". The example shown in FIG. 5 indicates that the score of the model "fishing lover" in the feature information of the user U whose UID is "U1" is "0.5".

Furthermore, for the user U whose UID is “U2”, the score of the model “fishing lover” in the feature information is “not input”. This indicates that the score of the model "fishing lover" of the user U "U2" has not been acquired from the service providing server 10.

For example, for the above score, the score calculated by the service providing server 10 may be directly input as the score of the shared information 31, or the score calculated by the service providing server 10 may be normalized according to a predetermined standard. It may also be input as the shared information 31.

In addition, although the shared information 31 is shown as a score in FIG. 5, the shared information 31 is not limited to a score, but is divided into grades such as "○, △ and ×", "excellent, good and fair", etc. It may also be information that has been submitted.

(About service information 32)
Next, the service information 32 is information regarding the service Y provided by each service providing server 10. FIG. 6 is a diagram showing an example of the service information 32. As shown in FIG. 6, the service information 32 includes items such as "service ID,""providedservice," and "number of registered models."

“Service ID” is identification information that identifies service Y (or service providing server 10). “Provided service” is information indicating the content of service Y. “Number of registered models” is information indicating the number of models of feature information registered in the shared information 31.

(About model program information 33)
Next, the model program information 33 is information that includes program data of the model in the feature information. FIG. 7 is a diagram showing an example of the model program information 33. The model program information 33 is information including program data of a model in feature information acquired by an acquisition unit 41, which will be described later. As shown in FIG. 7, the model program information 33 includes items such as "model ID", "model name", "service ID", and "model data".

"Model ID" is identification information that identifies a model in feature information. “Model name” is identification information indicating the name of the model in the feature information. “Service ID” is identification information that identifies service Y (or service providing server 10). "Model data" is program data of a model in feature information.

The "model data" is, for example, a regression model that uses user U's attributes as explanatory variables. For example, "model data" is a regression model shown in the following equation. That is, it can be expressed as a regression model of y=ω1·x1+ω2·x2+...+ωn·xn.

In the above formula, "x" is an explanatory variable corresponding to user U's attribute. “y” is an objective variable corresponding to a score indicating the characteristics of the user U. Further, "ω" is a coefficient of "x" and indicates a predetermined weight value. Specifically, "ω1" is a weight value of "x1", "ω2" is a weight value of "x2", and "ωn" is a weight value of "xn". In this way, the above formula is created by combining the explanatory variable "x" corresponding to the attribute of the user U and the variable containing the predetermined weight value "ω" (for example, "ω1・x1 _" ). .

Note that the "model data" may be feature information generated using SVM (Support Vector Machine) or other machine learning methods. Further, the feature information may be generated using deep learning technology. For example, service Y can generate feature information by appropriately using various deep learning techniques such as DNN (Deep Neural Network), RNN (Recurrent Neural Network), and CNN (Convolutional Neural Network).

(About transition information 34)
Next, the transition information 34 is information regarding the temporal transition of each feature information about the user U, and is generated and updated by an acquisition unit 41, which will be described later. FIG. 8 is a diagram showing an example of the transition information 34. As shown in FIG. 8, the transition information 34 includes items such as "UID", "model name", and "score".

“UID” corresponds to “UID” of the shared information 31 described above. The “model name” corresponds to the “model name” of the model program information 33 described above. Note that the "model name" only needs to be able to identify the model in the feature information, and may be, for example, a "model ID" or the like.

In the "score" field, each score for each predetermined timing corresponding to each sample point on the time series is input. For example, the predetermined timing is the update timing of the shared information 31 by the acquisition unit 41, etc. Note that although FIG. 8 shows an example in which scores are input every three months, this is just an example and does not limit the above-mentioned predetermined timing.

(About the control unit 4)
Returning to the explanation of FIG. 3, the control section 4 will be explained next. The control unit 4 is a controller that executes various programs (information processing programs) stored in a storage device inside the information processing device 1 by, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). (corresponding to one example) is realized by being executed using RAM as a work area. Further, the control unit 4 is, for example, a controller, and is realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

As shown in FIG. 3, the control unit 4 includes an acquisition unit 41, a reception unit 42, an extraction unit 43, a provision unit 44, and a learning unit 45, and has information processing functions and operations described below. to realize or carry out. Note that the internal configuration of the control unit 4 is not limited to the configuration shown in FIG. 3, and may be any other configuration as long as it is capable of performing information processing to be described later. Furthermore, the connection relationship between the respective processing units included in the control unit 4 is not limited to the connection relationship shown in FIG. 3, and may be any other connection relationship.

The control unit 4 acquires characteristic information from each of the different services Y, extracts the temporal transition of the acquired characteristic information for each service Y, and also provides the temporal transition for each extracted service Y.

(About the acquisition unit 41)
The acquisition unit 41 acquires feature information including at least one of a model for estimating the characteristics of the user U using the attributes of the user U, and an estimation result regarding the characteristics of the user U estimated using the attributes of the user U, from a different service. Obtain from each Y. For example, the acquisition unit 41 acquires characteristic information generated for service Y in a prespecified format. As a result, the format of the feature information can be made the same between the services Y, so it is possible to obtain feature information based on a unified standard.

Further, the acquisition unit 41 acquires information including the above-described model and the initial value of the score output from the model as the feature information. The initial value of the score may be calculated in advance by the service providing server 10, for example, or may be calculated by the acquisition unit 41 by acquiring model data. When the acquisition unit 41 calculates the initial value, it first acquires only the model data of the feature information, and then acquires the attributes of the user U from the service providing server 10 and calculates the score.

Note that the acquisition unit 41 may have a check function of checking whether or not the characteristic information is generated in accordance with a specified format when acquiring the characteristic information.

Further, the acquisition unit 41 registers the acquired feature information as the shared information 31 and performs an update process to update the registered feature information as necessary. Specifically, at the first time, the acquisition unit 41 first acquires the model data of the feature information and the initial value of the score and registers it as the shared information 31, and from the second time onward, if necessary, the acquisition unit 41 acquires the model data of the feature information and the initial value of the score. The attribute of U is acquired, and the score of the shared information 31 is updated based on this. Furthermore, when the model data is changed, new model data is acquired from service Y and the model itself in the shared information 31 is updated.

Further, the acquisition unit 41 may acquire the attributes of the user U, which are input to the model in the feature information, from a service Y different from the service Y from which the model is acquired. In other words, the attributes of the user U may be obtained from the service Y from which the model registered as the shared information 31 is obtained and the score may be output, or the user U may be obtained from a service Y different from the service Y from which the model is obtained. You may also output the score using the attributes. Thereby, for example, the model registered in the shared information 31 can be shared between the services Y of different providers.

Further, the acquisition unit 41 updates the transition information 34 at each update processing timing, for example, and records the temporal transition of each characteristic information about the user U.

(About the reception department 42)
The receiving unit 42 receives requests for information provision from the service providing server 10. For example, the receiving unit 42 receives a user-specified request specifying a specific user U from the service Y. The number of users U specified by user specification may be one or more. Alternatively, the user designation may be a user group designation that includes a plurality of users U.

Further, the receiving unit 42 may include a period designation in the above-described request. For example, the user U who used the service Y during the period specified by the period specification may be the user specified.

(About the extraction unit 43)
The extraction unit 43 extracts, from the transition information 34, the temporal transition for each corresponding feature information regarding the specific user U designated by the user designation. Further, the extracting unit 43 notifies the providing unit 44 of the extracted extraction result.

Further, when there is a predetermined characteristic in the temporal transition of certain feature information included in the extracted extraction result, the extraction unit 43 extracts the future temporal transition of the characteristic information of other services based on the predetermined characteristic. It makes a prediction and notifies the providing unit 44 of the prediction result.

(About the providing section 44)
The providing unit 44 generates provided information indicating the temporal transition of each feature information regarding the user U specified by the user based on the extraction result and prediction result extracted by the extracting unit 43, and uses the provided information. Provide to service Y.

(About learning section 45)
The learning unit 45 learns and updates feature information including at least one of a model for estimating the characteristics of the user U using the attributes of the user U acquired by the acquisition unit 41 and the estimation results, taking into account changes over time. do. For example, the learning unit 45 assigns different scores to periodic changes in the user U's feature information depending on the content of the user U's evaluation of the user U's feature information, and based on the assigned score, the learning unit 45 Update the characteristic information of U. Thereby, the characteristics of the user U can be grasped with high accuracy.

That is, the acquisition unit 41 acquires the characteristic information of the user U and stores it as shared information 31, model program information 33, transition information 34, and the like. The user U can check the stored feature information including his or her own model data using the user terminal 100. The user U can then evaluate the confirmed feature information.

User U can use the user terminal 100 to view his or her own characteristic information, for example, in a ranking format. The user terminal 100 has characteristic information of the user U, for example, 1. I love movies, 2. I like fishing, 3. It is displayed in a ranking format, such as ``I like mountain climbing...''. In this case, the user terminal 100 may display the characteristic information of the user U in a wordcraft format using font sizes.

When the user U selects a specific piece of feature information from the plural pieces of feature information on the user terminal 100 on which a plurality of pieces of feature information about the user U are displayed, a plurality of evaluation items for the selected feature information are displayed. The user U can select a corresponding evaluation item from among the plurality of displayed evaluation items. The learning unit 45 assigns a score to the evaluation item for the specific feature information selected by the user U, and updates the feature information of the user U according to the score.

As shown in FIG. 4, the learning section 45 includes an evaluation item providing section 51, an evaluation item receiving section 52, a providing section 53, and an updating section 54.

(About the evaluation item providing unit 51)
The evaluation item providing unit 51 provides the user U with a plurality of evaluation items for evaluating feature information. The plurality of evaluation items provided by the evaluation item providing unit 51 include evaluation items that can evaluate current evaluation and past evaluation.

The plurality of evaluation items are, for example, eight items such as ``Correct'', ``Amazing'', ``Unexpected'', ``What is that?'', ``Embarrassing'', ``Impressions'', ``Gone in the past'', and ``Just researched''. Note that the evaluation items provided by the evaluation item providing unit 51 are not limited to eight items, and may be seven or less, or nine or more. Furthermore, the evaluation items are not limited to those described above. Here, the evaluation items that allow evaluation of the current evaluation and the past evaluation include "past past", "just researched", and others such as "hard to eat".

(About the evaluation item reception unit 52)
The evaluation item receiving unit 52 receives evaluation items for the feature information evaluated by the user U. The evaluation item providing unit 51 provides not only the two-choice evaluation items "correct" and "incorrect" but also evaluation items such as "amazing" and "unexpected" expressing the user's U's feelings for the characteristic information of the user U. Thus, the evaluation item reception unit 52 can receive emotional feedback from the user U.

For example, when the evaluation item reception unit 52 receives "past past" as an evaluation item for "movie lover", which is the characteristic information of user U, the user U "loved movies" in the past, but now "movie lover". This means that we have received information that this is not the case. In other words, the evaluation item receiving unit 52 can obtain information that the user U's characteristic information of “movie lover” was answered “correctly” in the past and is currently “incorrectly”.

In addition, when the evaluation item reception unit 52 receives "I just researched" as an evaluation item for "I love movies", which is the characteristic information of user U, the evaluation item reception unit 52 may be configured to ” has been accepted. In other words, the evaluation item reception unit 52 can obtain information that the user U's characteristic information of “movie lover” was answered “incorrect” in the past and is currently “correct.”

The evaluation item receiving unit 52 accepts period-based evaluation items that can evaluate current evaluation and past evaluation for user U's characteristic information, thereby determining the period-based "correct answer" for user U's characteristic information. and "incorrect" information. In this case, it is preferable that the period boundary between "correct answer" and "incorrect answer" be set according to past logs. Here, the past log that determines the temporal boundary between "correct answer" and "incorrect answer" is specified based on user U's behavior log such as past search queries, shopping logs, and location information, for example. In this case, the identification may be based on the behavior log of a specific user U, or based on the behavior logs of a plurality of users U, for example, based on an average value.

(About the giving part 53)
The assigning unit 53 assigns a user's score in a period according to the content of the evaluation for predetermined feature information among the user U's feature information. The assigning unit 53 assigns the user's score for the period according to the evaluation item accepted by the evaluation item accepting unit 52. In this case, the assigning unit 53 assigns the user's score in the period to each user's characteristic information.

As an example, when the evaluation item reception unit 52 receives "the past past" as an evaluation item for "movie lover", which is the characteristic information of the user U, the evaluation item reception unit 52 may '', the information that the answer was ``correct'' in the past and is currently ``incorrect'' is accepted. The assigning unit 53 assigns, for example, a score of "0.7" to "movie lover", which is the characteristic information of user U, because the answer was "correct" in the past, and the score is currently "incorrect". For example, a score of "0.2" is assigned.

In addition, when the evaluation item receiving unit 52 receives "embarrassing" as an evaluation item for "dating site" which is the characteristic information of user U, it accepts "embarrassed" as an evaluation item for "dating site" which is the characteristic information of user U, when it is interested but embarrassed, and for the phrase "dating site" It can be embarrassing. In this case, it is unclear whether the giving unit 53 gives a “correct” or “incorrect” answer to “dating”, which is the characteristic information of the user U, and for example, if the evaluation item receiving unit 52 accepts Do not assign scores to answers.

(About the update section 54)
The updating unit 54 updates the feature information including the user's model data based on the score assigned by the assigning unit 53. In this case, the update unit 54 updates the information stored in the shared information 31, model program information 33, and transition information 34.

(Regarding other processing in the learning section 45)
The above-described assigning unit 53 assigns a score to the user U according to the selection order selected by the user U from among the plurality of characteristic information ranked and displayed on the user terminal 100. The learning unit 45 can display the feature information in a ranking format to the user U using the user terminal 100. User U can select specific feature information displayed in a ranking and evaluate the selected feature information. At this time, when the user U first selects the feature information ranked No. 1, the assigning unit 53 multiplies the current score of this feature information by a weighting coefficient of 1.1, for example, to obtain the feature information. Correct your score. On the other hand, when the user U first selects the feature information ranked 3rd in the ranking, the assigning unit 53 estimates that the user U is more interested in the feature information ranked 3rd than the feature information ranked 1st. Then, the current score of this feature information is multiplied by a weighting coefficient of 1.5, for example, to correct the score of the feature information.

That is, the assigning unit 53 selects feature information that is ranked lower than the selection order of the user U from among the plurality of feature information displayed in the ranking on the user terminal 100, that is, the selection order is second and the ranking is lower. When the fourth place feature information is selected, the weighting coefficient for correcting the score of the feature information is increased.

For example, when the user U1 selects "Entertainment" first and answers "Correct" with respect to the feature information "Entertainment" displayed in the first place in the ranking on the user terminal 100, the learning unit 45 The feature information is recognized as ``correctly estimated.'' On the other hand, if the user U2 selects "Entertainment" fifth and answers "Correct", the learning unit 45 recognizes that the user's characteristic information is "estimated correctly, but the degree of interest is small". and reduce the weighting coefficient. Further, if the user U1 selects "Entertainment" first and answers "incorrect", the learning unit 45 recognizes that the user's feature information "cannot be estimated correctly" and weights the score to decrease. Let it be a coefficient. Further, if the user U1 selects "Entertainment" fifth and answers "incorrect", the learning unit 45 recognizes that the user's feature information "has not been correctly estimated" and weights the score so that it does not increase or decrease. Let it be a coefficient.

Note that for a plurality of pieces of characteristic information ranked and displayed on the user terminal 100, for example, characteristic information ranked first to third in the ranking (for example, "sports," "entertainment," and "business") is set as one group. . Then, the weighting coefficients may be relatively changed among the first to third feature information. Further, the characteristic information displayed in the ranking format on the user terminal 100 may be corrected for the user's U's whimsical selection. For example, if the user U1 selects "Entertainment" first and answers "Correct", the learning unit 45 recognizes that he is most interested in "Entertainment". If the user U1 selects "Entertainment" second and answers "Incorrect", the learning unit 45 recognizes that he has no interest in "Entertainment" at all. When the user U1 selects "Entertainment" third and answers "Incorrect", the learning unit 45 recognizes that "Entertainment" is the second choice that he is not interested in. When the user U1 selects "Entertainment" as the fourth choice and answers "Incorrect", the learning unit 45 recognizes that "Entertainment" is the third choice that he is not interested in.

Further, when displaying a plurality of pieces of feature information in a ranking manner on the user terminal 100, the feature information desired by services Y1, Y2, and Y3 is displayed at the top of the ranking. When displaying a plurality of pieces of feature information in a ranking manner on the user terminal 100, the feature information that is frequently used within the company by services Y1, Y2, and Y3 is displayed at the top of the ranking. Furthermore, when displaying a plurality of pieces of characteristic information in a ranking manner on the user terminal 100, characteristic information with a small number of responses is displayed at the top of the ranking. When displaying a plurality of pieces of feature information in a ranking manner on the user terminal 100, a reward mark is attached to the feature information.

(Specific example of provision processing)
Here, a specific example of the provision processing according to the embodiment will be described using FIGS. 9A and 9B. 9A and 9B are diagrams (Part 1) (Part 2) showing specific examples of provision processing according to the embodiment.

As shown in FIG. 9A, for example, the providing unit 44 generates a graph for a user U designated by the user designation, in which it is possible to simultaneously check the time transition of the score for each feature information indicating the characteristics of the user U, Provided to service Y as provided information.

As a result, the operator can, for example, check changes in the interests of a specified user U, not only with the analysis results of the service Y that it operates, but also with the analysis results of other services Y. .

In addition, this allows the business operator to estimate the factors behind changes in user U's interests shown in the graph, and for example, it is possible to utilize the estimated factors to expand coverage in marketing, etc. becomes.

For example, in the case of the graph shown in FIG. 9A, the business operator can confirm that the specified user U is originally a user who has a high interest in fishing and movies. For this user U, it can be confirmed that an interest in mountain climbing that can be converted into a score occurred in "March" and that this interest increased gradually from "June" to "September". .

On the other hand, it can be seen that interest in fishing gradually decreased from June to September, replacing interest in mountain climbing. As a result, on the operator's side, there is something that will attract user U's interest in mountain climbing at least around March, and as his interest in mountain climbing increases, for example, the way he spends his holidays will change, and user U will It can be assumed that people have started to prioritize mountain climbing rather than fishing.

Furthermore, the operator can presume that the user U regularly purchases movie tickets and continues to enjoy watching movies indoors as a hobby.

Although FIG. 9A shows an example of providing graph information, the providing unit 44 generates a video showing changes in the tag cloud regarding user U, and provides it to service Y as provided information, as shown in FIG. 9B, for example. You may also do so. Note that FIG. 9B corresponds to changes in the graph of FIG. 9A.

For example, by using the video showing changes in the tag cloud shown in FIG. 9B, the level of interest of the user U can be expressed by the size of the font (that is, if the interest is high, the font is made large, and if the interest is low, the font is made small). , the business operator can check changes in user U's interests by cross-sectionally using the analysis results of different services Y.

Furthermore, as in the case of the graph in FIG. 9A, this allows the business operator to estimate the cause of changes in user U's interests shown in the video.

Note that here, the height of user U's interest is expressed by the size of the font, but the height of user U's interest can be expressed by the color of the font, the placement position, whether it is easily noticeable by blinking, etc. It may also be indicated.

[4. Processing procedure of information processing device 1]
Next, a processing procedure executed by the information processing device 1 according to the embodiment will be described. FIG. 10 is a flowchart showing a processing procedure executed by the information processing device 1 according to the embodiment.

As shown in FIG. 10, first, the acquisition unit 41 acquires at least one of a model that estimates the characteristics of the user U using the attributes of the user U, and an estimation result regarding the characteristics of the user U estimated using the attributes. The characteristic information including the information is acquired from each of the different services Y (step S101).

Then, the extraction unit 43 extracts the temporal transition for each characteristic information regarding the user U corresponding to the user designation received by the reception unit 42 (step S102).

Then, the providing unit 44 also provides the temporal transition for each feature information extracted by the extracting unit 43 (step S103), and the process ends.

Further, a processing procedure executed by the learning unit 45 of the information processing device 1 according to the embodiment will be explained. FIG. 11 is a flowchart showing a processing procedure executed by the learning unit 45 of the information processing device 1 according to the embodiment.

The acquisition unit 41 has already acquired the characteristic information of the user U (step S101 in FIG. 10). As shown in FIG. 11, first, the evaluation item providing unit 51 provides the user U with a plurality of evaluation items for evaluating feature information (step S201). Next, the evaluation item reception unit 52 receives evaluation items for the feature information evaluated by the user U (step S202).

The assigning unit 53 then assigns a score to the user U in the period according to the content of the evaluation for predetermined feature information among the feature information of the user U (step S203). Then, the updating unit 54 updates the characteristic information of the user U based on the score assigned by the assigning unit 53 (step S204), and ends the process.

[5. Hardware configuration]
The information processing device 1, service providing server 10, business terminal 20, and user terminal 100 according to the embodiments described above are realized by, for example, a computer 1000 having a configuration as shown in FIG. 11. The information processing device 1 will be described below as an example. FIG. 11 is a hardware configuration diagram showing an example of a computer that implements the functions of the information processing device 1 according to the embodiment. The computer 1000 includes a CPU (Central Processing Unit) 1100, a RAM (Random Access Memory) 1200, a ROM (Read Only Memory) 1300, an HDD (Hard Disk Drive) 1400, a communication interface (I/F) 1500, and an input/output interface (I/F) 1500. /F) 1600, and a media interface (I/F) 1700.

CPU 1100 operates based on a program stored in ROM 1300 or HDD 1400, and controls each section. The ROM 1300 stores a boot program executed by the CPU 1100 when the computer 1000 is started, programs depending on the hardware of the computer 1000, and the like.

HDD 1400 stores programs executed by CPU 1100 and data used by the programs. Communication interface 1500 receives data from other devices via communication network 500 (corresponding to network N shown in FIG. 2), sends it to CPU 1100, and sends data generated by CPU 1100 to other devices via communication network Send to device.

The CPU 1100 controls output devices such as a display and a printer, and input devices such as a keyboard and a mouse via an input/output interface 1600. CPU 1100 obtains data from an input device via input/output interface 1600. Further, CPU 1100 outputs the generated data to an output device via input/output interface 1600.

Media interface 1700 reads programs or data stored in recording medium 1800 and provides them to CPU 1100 via RAM 1200. CPU 1100 loads the program from recording medium 1800 onto RAM 1200 via media interface 1700, and executes the loaded program. The recording medium 1800 is, for example, an optical recording medium such as a DVD (Digital Versatile Disc) or a PD (Phase change rewritable disk), a magneto-optical recording medium such as an MO (Magneto-Optical disk), a tape medium, a magnetic recording medium, or a semiconductor memory. etc.

For example, when the computer 1000 functions as the information processing device 1 according to the embodiment, the CPU 1100 of the computer 1000 realizes each function of the control unit 4 by executing a program loaded onto the RAM 1200. Further, data in the storage unit 3 is stored in the HDD 1400. The CPU 1100 of the computer 1000 reads these programs from the recording medium 1800 and executes them, but as another example, these programs may be acquired from another device via the communication network 500.

[6. others〕
Furthermore, among the processes described in the above embodiments, all or part of the processes described as being performed automatically can be performed manually, or the processes described as being performed manually can be performed manually. All or part of the process can also be performed automatically using known methods. In addition, information including the processing procedures, specific names, and various data and parameters shown in the above documents and drawings may be changed arbitrarily, unless otherwise specified. For example, the various information shown in each figure is not limited to the illustrated information.

Furthermore, each component of each device shown in the drawings is functionally conceptual, and does not necessarily need to be physically configured as shown in the drawings. In other words, the specific form of distributing and integrating each device is not limited to what is shown in the diagram, and all or part of the devices can be functionally or physically distributed or integrated in arbitrary units depending on various loads and usage conditions. Can be integrated and configured.

For example, the acquisition unit 41 shown in FIG. 3 and the reception unit 42 may be integrated, and the evaluation item providing unit 51 and the evaluation item reception unit 52 shown in FIG. 4 may be integrated. Further, for example, the information stored in the storage unit 3 may be stored in a predetermined external storage device via the network N.

Further, the embodiments described above can be combined as appropriate within the range that does not conflict with the processing contents.

[7. effect〕
The information processing device 1 of the information processing system S according to the embodiment includes an acquisition section 41, a provision section 53, and an update section 54. The acquisition unit 41 acquires user characteristic information. The assigning unit 53 assigns a score to the user in a period according to the content of evaluation for predetermined feature information among the user's feature information. The updating unit 54 updates the user's characteristic information based on the score assigned by the assigning unit 53. Thereby, the user's characteristics can be grasped with high accuracy.

Note that the information processing apparatus 1 of the information processing system S described in the embodiment is applicable to various services provided to users. Various services include search services, content, advertising, crowdsourcing, shopping, restaurant rankings, reviews, and journey feedback. And so on.

Although the embodiments of the present application have been described above in detail based on the drawings, this is merely an example, and various modifications and improvements can be made based on the knowledge of those skilled in the art, including the embodiments described in the disclosure section of the invention. It is possible to implement the invention in other forms.

Further, the above-mentioned "section, module, unit" can be read as "means", "circuit", etc. For example, the acquisition unit can be read as an acquisition means or an acquisition circuit.

1 Information processing device 2 Communication unit 3 Storage unit 4 Control unit 10 Service providing server 20 Business terminal 31 Shared information 32 Service information 33 Model program information 34 Transition information 41 Acquisition unit 42 Reception unit 43 Extraction unit 44 Providing unit 45 Learning unit 51 Evaluation item providing unit 52 Evaluation item receiving unit 53 Assigning unit 54 Updating unit 100 User terminal S Information processing system

Claims (9)

Estimate user characteristics by analyzing the attributes of users who have used the service. Obtain user characteristic information for each service for the same user from each of the multiple service providing servers, and also obtain user characteristic information for each service for the same user . an acquisition unit that generates and updates transition information regarding temporal transition ;
a reception unit that receives a user-specified request for specifying a specific user as a request for information provision from the service providing server;
The temporal transition of each corresponding feature information for the specified user is extracted from the transition information, and if the temporal transition of certain characteristic information included in the extracted extraction result has a predetermined characteristic, the predetermined an extraction unit that predicts future temporal trends of feature information of other services based on the features;
a providing unit that generates provided information indicating a temporal transition of each feature information about a specified user based on the extraction result and prediction result extracted by the extraction unit, and provides the provided information to a service providing server; ,
a learning unit that assigns different scores to changes in the user's characteristic information over time according to the content of the user's evaluation of the user's characteristic information, and updates the user's characteristic information based on the assigned score;
Equipped with
The learning department is
an assigning unit that assigns a score to a user in a period according to the content of an evaluation of predetermined feature information among the user's feature information;
an updating unit that updates user characteristic information based on the score assigned by the assignment unit;
An information processing device comprising : The learning department is
an evaluation item providing unit that provides a plurality of evaluation items for evaluating feature information to a user;
an evaluation item reception unit that accepts evaluation items for feature information evaluated by the user ;
It further has
The evaluation item providing unit provides not only two-choice evaluation items such as correct or incorrect answers to the user's characteristic information, but also evaluation items expressing the user's emotions, so that the evaluation item receiving unit can receive feedback from the user. Accept emotional feedback
The information processing device according to claim 1, wherein the assigning unit assigns a user's score for a period according to the evaluation item accepted by the evaluation item accepting unit . The plurality of evaluation items provided by the evaluation item providing unit include evaluation items that can evaluate current evaluation and past evaluation.
The information processing device according to claim 2, characterized in that: The evaluation item reception unit accepts period-based evaluation items that can evaluate current evaluation and past evaluation with respect to the user's characteristic information, thereby determining the period-term correct and incorrect answers to the user's characteristic information. The information processing device according to claim 3, wherein the information processing device obtains information . The assigning unit assigns a user's score in a period to each user's characteristic information.
The information processing device according to any one of claims 1 to 4. The acquisition unit generates a model for estimating user characteristics using the acquired user characteristic information, and the updating unit updates the user model based on the score assigned by the assignment unit. The information processing device according to any one of claims 1 to 5. The assigning unit assigns a score to the user according to a selection order selected by the user from among the plurality of characteristic information displayed in rankings.
The information processing device according to any one of claims 1 to 6. An information processing method performed by a computer, the method comprising:
Estimate user characteristics by analyzing the attributes of users who have used the service. Obtain user characteristic information for each service for the same user from each of the multiple service providing servers, and also obtain user characteristic information for each service for the same user . an acquisition step of generating and updating transition information regarding temporal transition ;
a reception step of receiving a user-specified request for specifying a specific user as a request for information provision from the service providing server;
The temporal transition of each corresponding feature information for the specified user is extracted from the transition information, and if the temporal transition of certain characteristic information included in the extracted extraction result has a predetermined characteristic, the predetermined an extraction step of predicting future temporal trends of feature information of other services based on the features;
a providing step of generating provided information indicating a temporal transition of each characteristic information about the specified user based on the extracted extraction results and prediction results, and providing the provided information to a service providing server;
a learning step of assigning different scores to periodic changes in the user's feature information according to the content of the user's evaluation of the user's feature information, and updating the user's feature information based on the assigned score;
including;
The learning process is
an assigning step of assigning a score to the user in a period according to the content of the evaluation for predetermined feature information among the user's feature information;
an updating step of updating user characteristic information based on the assigned score;
An information processing method characterized by comprising: Estimate user characteristics by analyzing the attributes of users who have used the service. Obtain user characteristic information for each service for the same user from each of the multiple service providing servers, and also obtain user characteristic information for each service for the same user . an acquisition procedure for generating and updating transition information regarding the temporal transition ;
a reception procedure for receiving a user-specified request for specifying a specific user as a request for information provision from a service providing server;
The temporal transition of each corresponding feature information for the specified user is extracted from the transition information, and if the temporal transition of certain characteristic information included in the extracted extraction result has a predetermined characteristic, the predetermined an extraction procedure for predicting future temporal trends of feature information of other services based on the features;
a provision step of generating provided information indicating a temporal transition of each feature information for a specified user based on the extracted extraction results and prediction results, and providing the provided information to a service providing server;
A learning procedure for assigning different scores to changes in the user's characteristic information over a period of time depending on the content of the user's evaluation of the user's characteristic information, and updating the user's characteristic information based on the assigned score;
An information processing program for causing a computer to execute
In the learning procedure,
an assignment procedure for assigning a score to a user in a period according to the content of an evaluation of predetermined feature information among the user's feature information;
an update procedure for updating user characteristic information based on the assigned score;
An information processing program that causes a computer to execute.

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