Information processing device, information processing method, and program

Abstract

To provide information to facilitate conversation with an object person.SOLUTION: An information processing apparatus 2 includes: a presentation unit 231 that presents a plurality of questions for identifying an event of each of a plurality of events in each of a plurality of histories different in time to an object person; an acquisition unit 233 that acquires an answer of the object person to each of the plurality of questions; and a generation unit 234 that generates time sequence information indicating the event of each of the plurality of histories based on the questions and the answers. The information processing unit 2 further includes an emotion identification unit 232 that identifies an emotion when the object person answers the question. The generation unit 234 generates the time sequence information in which the event and the emotion corresponding to the event are associated with each other.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] 2. Description of the Related Art Conventionally, systems for managing the work of caregivers are known. Patent Document 1 discloses a technology for managing a visiting schedule of caregivers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-226377 A Summary of the Invention [Problem to be solved by the invention]

[0004] Caregivers and other caregivers, such as family members who provide care, interact with the person receiving care (hereinafter referred to as the "subject") while conversing with the subject. Subjects tend to be in good mood when talking about their memories, so if the caregiver is aware of the subject's past events, it becomes easier to converse with the subject and the caregiver can provide care smoothly. For this reason, there is a demand to provide caregivers with information that makes it easier to converse with the subject.

[0005] Therefore, the present invention has been made in consideration of these points, and aims to provide an information processing device, an information processing method, and a program that can provide information that makes it easier to converse with a target person. [Means for solving the problem]

[0006] An information processing device according to a first aspect of the present invention has a presentation unit that presents a subject with a number of questions to identify events in each of a number of histories, each of which has a different period in time, an acquisition unit that acquires the subject's answers to each of the plurality of questions, and a generation unit that generates time series information indicating the events in each of the plurality of histories based on the questions and the answers.

[0007] The information processing device may further include an emotion identification unit that identifies the emotion of the subject when he or she answered the question, and the generation unit may generate the time series information that associates the event with the emotion corresponding to the event.

[0008] The presentation unit may present a second question related to the first question when a response time taken by the subject to answer the first question is equal to or greater than a predetermined threshold and when the subject was feeling good when answering the first question.

[0009] When identifying a degree of the emotion, the emotion identifying unit may increase the degree of the emotion if the response time is equal to or greater than the predetermined threshold. The emotion identification unit may identify the emotion as good if a response period from when the presentation unit finishes presenting the question to when the subject starts answering is less than a predetermined threshold corresponding to the response period, and may identify the emotion as bad if the response period is equal to or greater than a predetermined threshold corresponding to the response period. The presentation unit may present the questions in order of oldest history.

[0010] The presentation unit may present the question for identifying a particular event in chronological order of the history. The generation unit may generate the time-series information that associates, for each event identified by the answer, the event with one or more of the histories in which the event occurred.

[0011] The presentation unit may present the subject with a known question for prompting the subject to answer about the event based on the time-series information after the generation unit generates the time-series information. The presentation unit may preferentially present a known question that is a question for prompting the subject to answer an event about which the subject has good feelings, among the plurality of events indicated by the time-series information.

[0012] The acquisition unit may acquire answers to known questions for answering the event presented by the presentation unit based on the time series information, and the generation unit may update the time series information based on an answer that is not included in the time series information among the answers to the known questions acquired by the acquisition unit.

[0013] An information processing method according to a second aspect of the present invention includes the steps of: presenting a subject with a plurality of questions to identify events in each of a plurality of histories, each of which has a different period; obtaining answers from the subject to each of the plurality of questions; and generating time series information indicating the events in each of the plurality of histories based on the questions and the answers.

[0014] A program according to a third aspect of the present invention causes a computer to function as a presentation unit that presents a subject with a number of questions to identify events in each of a number of histories, each of which has a different period in time, an acquisition unit that acquires answers to each of the multiple questions from the subject, and a generation unit that generates time series information indicating events in each of the multiple histories based on the questions and the answers. Effect of the Invention

[0015] According to the present invention, it is possible to provide information that makes it easier to converse with a subject. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a diagram showing a configuration of an information processing system S. [Diagram 2] FIG. 2 is a diagram showing a configuration of an information processing device 2. [Diagram 3] FIG. 2 is a diagram illustrating an example of a configuration of a question management database. [Figure 4] FIG. 13 is a diagram illustrating an example of a configuration of a specific question management database. [Diagram 5] FIG. 2 is a diagram illustrating an example of time-series information. [Figure 6] FIG. 2 is a diagram illustrating an example of time-series information. [Figure 7] 2 is a sequence diagram showing the flow of processing in the information processing system S. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] [Outline of Information Processing System S] First, an overview of the information processing system S will be described. FIG. 1 is a diagram showing the configuration of the information processing system S. The information processing system S is a system for managing past events of a subject U. The subject U is, for example, an elderly person, a person receiving care, etc. The information processing system S has a conversation device 1 and an information processing device 2.

[0018] The conversation device 1 is a device for conversing with the target person U. The conversation device 1 includes a speaker that outputs sound and a microphone that collects the speech of the target person U. The conversation device 1 may further include a short-range wireless communication module, and may output sound to a headset worn by the target person U and collect the speech of the target person U via the short-range wireless communication module.

[0019] The information processing device 2 is a device that manages past events of the subject U, and is, for example, a server. A plurality of pieces of question information are stored in the information processing device 2. The plurality of pieces of question information are information indicating the content of questions for identifying events in a plurality of careers each having a different period. The careers include, for example, elementary school, junior high school, and high school, but are not limited thereto, and may also include preschool, college, working, before and after marriage, before and after childbirth, child-rearing period, after retirement, and the like.

[0020] In this specification, an example in which the information processing system S includes the conversation device 1 and the information processing device 2 will be described, but the present invention is not limited to this. For example, the conversation device 1 may have the functions that the information processing device 2 has.

[0021] The following describes the process in which the information processing system S manages past events of the target person U. In the example shown in Fig. 1, first, when the target person U performs an operation to start a conversation on the conversation device 1, the conversation device 1 requests the information processing device 2 to transmit question information. The operation to start a conversation is, for example, an operation of pressing a button provided on the conversation device 1.

[0022] The information processing device 2 transmits the question information to the requested conversation device 1 ((1) in FIG. 1). Upon receiving the question information, the conversation device 1 presents the question to the target person U by outputting, from a speaker, a sound representing the content of the question indicated by the question information ((2) in FIG. 1).

[0023] When the target person U answers the posed question, the conversation device 1 acquires the answer of the target person U ((3) in FIG. 1). Upon acquiring the answer of the target person U, the conversation device 1 transmits answer information indicating the content of the answer to the information processing device 2 ((4) in FIG. 1).

[0024] The information processing system S repeatedly executes the processes from (1) to (4) in Fig. 1 until the multiple questions are completed. Then, when the questions are completed, the information processing device 2 generates time series information based on the question information and the answer information corresponding to the question information ((5) in Fig. 1). The time series information is information that lists multiple historical events each occurring at a different time, and is information that chronologically summarizes the past events of the subject U.

[0025] In this way, the information processing system S can collect past events of the subject U. For example, by referring to the time-series information, a caregiver can converse with the subject U on topics corresponding to the subject U's past events. As a result, the information processing system S can provide information that makes it easier to converse with the subject U. The configuration of the information processing device 2 will be described below.

[0026] [Configuration of information processing device 2] 2 is a diagram showing a configuration of the information processing device 2. The information processing device 2 has a communication unit 21, a storage unit 22, and a control unit 23. The control unit 23 has a presentation unit 231, an emotion identification unit 232, an acquisition unit 233, and a generation unit 234.

[0027] The communication unit 21 is an interface for connecting to a network, and includes, for example, a communication controller. The storage unit 22 is a storage medium such as a ROM (Read Only Memory), a RAM (Random Access Memory), or a hard disk. The storage unit 22 stores a program executed by the control unit 23.

[0028] The storage unit 22 stores a question management database that manages questions to be presented to the subject U. FIG. 3 is a diagram showing an example of the configuration of the question management database. The question management database stores a career history, question identification information, and question content in association with each other. The question identification information is information for identifying the question to be presented to the subject U. The storage unit 22 may store a question management database corresponding to each dialect.

[0029] 2, the control unit 23 is, for example, a CPU (Central Processing Unit). The control unit 23 executes a program stored in the storage unit 22 to function as a presentation unit 231, an emotion identification unit 232, an acquisition unit 233, and a generation unit 234.

[0030] The presentation unit 231 presents to the target person U a plurality of questions for identifying events in a plurality of histories each having a different time period. Specifically, first, the presentation unit 231 transmits question information to the conversation device 1 via the communication unit 21. Then, the conversation device 1 presents to the target person U a question having question content indicated by the question information.

[0031] For example, first, the presentation unit 231 converts the text of the question content into voice, and transmits question information including the converted voice to the conversation device 1. Then, when the conversation device 1 acquires the question information from the information processing device 2, it outputs the voice included in the question information via the speaker. The presentation unit 231 may transmit question information including the text of the question content to the conversation device 1, and the conversation device 1 may convert the text into voice. For example, when the conversation device 1 requests transmission of the question information, the presentation unit 231 transmits the question information to the conversation device 1.

[0032] For each question, when the acquisition unit 233 described later acquires the target person U's answer to the question, the presentation unit 231 presents the next question to the target person U. Specifically, first, the presentation unit 231 selects one of the multiple questions stored in the question management database, and presents the selected question to the target person U. Then, when the acquisition unit 233 acquires the answer after presenting the question to the target person U, the presentation unit 231 selects the next question from the multiple questions stored in the question management database, and presents the selected question to the target person U.

[0033] The presenting unit 231 may present questions in the order of oldest history. In the example shown in Fig. 3, the presenting unit 231 presents questions in the order of elementary school, junior high school, and high school in the history stored in the question management database. For example, the question management database stores a question order in which a serial number is assigned in the order of oldest history in association with each question, and the presenting unit 231 presents questions in ascending order of the serial numbers of the question order in the question management database. In this way, the information processing device 2 can make it easier for the subject U to answer.

[0034] The presentation unit 231 may present a second question to the subject U depending on the degree of attachment of the subject U to the event identified by the answer to the first question. The second question is a question related to the first question, and specifically, a question for further identifying the event identified by the answer to the first question. For example, if the first question is "Who did you play with when you were in elementary school?", the second question is "What did you play with XX-chan?".

[0035] Specifically, the presenting unit 231 presents a second question related to the first question when the answering time taken by the target person U to answer the first question is equal to or longer than a predetermined threshold and the target person U is in a good mood when answering the first question. The answering time is, for example, a period from when the target person U starts speaking after the conversation device 1 asks a question to when the target person U finishes speaking. The predetermined threshold is, for example, set in advance in the information processing device 2.

[0036] More specifically, first, the emotion identification unit 232 identifies the emotion of the target person U when he / she answers the question based on the answer information acquired by the acquisition unit 233. Then, the presentation unit 231 presents a second question related to the first question when the answer time identified by the answer information acquired by the acquisition unit 233 is equal to or greater than a predetermined threshold and the emotion identified by the emotion identification unit 232 is good. "Good emotion" is, for example, joy and enjoyment. In this way, the information processing device 2 can make the target person U enjoy a conversation by having the target person U talk about good memories.

[0037] In addition, the presenting unit 231 may present another question unrelated to the first question when the subject U is not feeling well when answering the first question. "Not feeling well" refers to anger or sadness. The other question is, for example, a question for identifying an event different from the event identified by the answer to the first question, or a question for identifying an event in a history different from the history of the event identified by the answer to the first question.

[0038] The emotion identification unit 232 identifies the emotion of the target person U, for example, based on the voice of the target person U when answering. Although detailed description is omitted because this is a known technique, the emotion identification unit 232 can identify the emotion of the target person U based on the voice, for example, by analyzing the waveform of the voice.

[0039] The emotion identifying unit 232 may identify the emotion of the target person U based on the facial expression of the target person U when the target person U answers. For example, the conversation device 1 is equipped with a camera, and the camera captures an image of the target person U. In this case, when the acquisition unit 233 acquires the captured image captured by the camera of the conversation device 1 together with the answer information, the emotion identifying unit 232 identifies the emotion of the target person U based on the facial expression of the target person U included in the captured image. The emotion identifying unit 232 can identify the emotion of the target person U based on the facial expression of the target person U by using a known image analysis technique.

[0040] The emotion identification unit 232 may identify the degree of emotion when the subject U answers the question. The emotion identification unit 232 calculates, for example, an emotion index indicating the degree of emotion when the subject U answers the question. The emotion index is indicated, for example, by a numerical value, where a higher numerical value indicates a better emotion and a lower numerical value indicates a worse emotion.

[0041] When identifying the degree of emotion of the subject U when answering a question, the emotion identification unit 232 may increase the degree of emotion if the answer time is equal to or greater than a predetermined threshold. For example, when identifying that the emotion of the subject U is good based on the answer information, the emotion identification unit 232 calculates a higher emotion index if the answer time is equal to or greater than a predetermined threshold than if the answer time is less than the predetermined threshold. In this way, the information processing device 2 can improve the accuracy of identifying the emotion of the subject U.

[0042] In the case of the subject U, if the question is about a positive topic, the period from when the question is presented to when the subject U starts answering may be short, and if the question is about a negative topic, the period from when the question is presented to when the subject U starts answering may be long. Therefore, the emotion identification unit 232 may identify the emotion according to the length of the period from when the question is presented to when the subject U starts answering.

[0043] Specifically, when the response period is less than a predetermined threshold, the emotion identification unit 232 identifies the emotion of the target U as good. The response period is a period from when the presentation of the question by the presentation unit 231 ends (when the output of sound from the speaker of the conversation device 1 ends) to when the target U starts to answer (when the microphone of the conversation device 1 starts to collect the speech of the target U). The predetermined threshold is, for example, a period determined in advance and is a threshold corresponding to the response period. On the other hand, when the response period is equal to or greater than the predetermined threshold, the emotion identification unit 232 identifies the emotion of the target U as bad. In this way, the information processing device 2 can easily identify the emotion of the target U.

[0044] The presentation unit 231 may present questions for identifying a specific event in the order of oldest history. For example, if the subject U answers "I learned piano" to the question "Did you take lessons when you were an elementary school student?", the presentation unit 231 presents questions for identifying "piano" as a specific event in the order of oldest history.

[0045] The presentation unit 231 presents questions for identifying whether or not the subject U learned piano as a junior high or high school student, for example, in order of oldest history. For example, a specific question management database that manages questions for identifying each specific event is stored in the storage unit 22, and the presentation unit 231 first identifies a specific question management database corresponding to the event identified by the answer of the subject U from among multiple specific question management databases. Then, the presentation unit 231 presents questions for identifying a specific event in order of oldest history, with reference to the identified specific question management database.

[0046] Fig. 4 is a diagram showing an example of the configuration of the specific question management database. The specific question management database shown in Fig. 4 is a database that manages questions for identifying a piano. In the example shown in Fig. 4, the specific question management database stores question identification information, a question order, and question content for identifying a specific event in association with each other. The question order is information indicating the order of questions to be presented to the subject U. For example, the question order is set with a serial number in the order of oldest history, and the presentation unit 231 presents the questions stored in the specific question management database in ascending order of question order.

[0047] The presentation unit 231 may present a question corresponding to a dialect used by the target person U. The dialect used by the target person U is set, for example, by the target person U specifying it from among a plurality of dialects, or by the presentation unit 231 acquiring, by the acquisition unit 233, a response to a question asking about the target person U's hometown.

[0048] The acquisition unit 233 acquires the target person's answer to each of the multiple questions. Specifically, first, the conversation device 1 presents a question to the target person U and then acquires the answer to the question. Then, the acquisition unit 233 acquires answer information indicating the answer of the target person U from the conversation device 1 via the communication unit 21. The acquisition unit 233 acquires the answer information from the conversation device 1 for each answer, for example.

[0049] For example, the answer information includes a voice spoken by the target person U to answer a question, and the acquisition unit 233 converts the voice into text. The acquisition unit 233 may further extract a character string for identifying an event of the target person U (for example, a character string indicating when, where, what, why, how, etc.) from the converted text. Note that the conversation device 1 may convert the voice into text and transmit the answer information including the converted text to the information processing device 2. The acquisition unit 233 stores the acquired answer information in the storage unit 22 in association with the question information previously transmitted to the conversation device 1 or the question identification information corresponding to the question information.

[0050] The generating unit 234 generates time series information indicating events in a plurality of histories each having a different time period based on the question presented to the subject U by the presenting unit 231 and the answer to the question. The generating unit 234 generates time series information that lists the histories in order of oldest to newest history, for example, and associates the histories with events in the histories.

[0051] The generating unit 234 associates the generated time-series information with the target person identification information and stores it in the storage unit 22. The target person identification information is information for identifying the target person U, such as information for identifying the target person U (e.g., a user ID (identifier)) or information for identifying the conversation device 1 used by the target person U (e.g., a device ID).

[0052] The generating unit 234 may generate time-series information further including the emotion of the target person U when he / she answers the question. Specifically, the generating unit 234 generates time-series information in which an event specified by the answer of the target person U to the question presented by the presenting unit 231 is associated with an emotion corresponding to the event. The emotion corresponding to the event is the emotion of the target person U when he / she answers the event.

[0053] Fig. 5 is a diagram showing an example of time-series information. As shown in Fig. 5, the time-series information is associated with a career, a type of event, the content of the event, and an emotion index. The generation unit 234 generates time-series information as shown in Fig. 5 based on the answer information and the emotion of the subject U when answering the event indicated by the answer information. In this way, the information processing device 2 can record the emotion of the subject U regarding past events.

[0054] The generating unit 234 may generate time-series information that associates, for each event identified by the answer, the event with one or more careers in which the event occurred. FIG. 6 is a diagram that illustrates an example of time-series information. As illustrated in FIG. 6, the time-series information associates the content of the event, the career, and an emotion index. The career illustrated in FIG. 6 is associated with one or more careers. The emotion index illustrated in FIG. 6 is, for example, a statistical value of the emotion index based on the emotion of the subject U when answering the event in each career. The statistical value is, for example, an average value, a median value, or a mode value. In this way, the information processing device 2 can record the length of the career for the event.

[0055] For example, the information processing device 2 generates time-series information and then presents the time-series information to a provider who provides a service to the subject U. The service is, for example, nursing care, and the provider is, for example, a caregiver for the subject U (for example, a caregiver and a family member of the subject U, etc.). For example, the caregiver has an information device (not shown) that presents information to the caregiver, and the information processing device 2 presents the time-series information corresponding to the subject U for whom the caregiver is caring, to the information device. The information device is, for example, a smartphone, a glasses-type wearable device, etc.

[0056] After generating the time series information, the information processing device 2 may provide a conversation between the target person U and the conversation device 1 based on the time series information. Specifically, after the generation unit 234 generates the time series information, the presentation unit 231 presents a known question to the target person U based on the time series information. The known question is a question for getting the target person U to answer about a past event of the target person U indicated by the time series information. For example, if the past event of the target person U is "learning piano when he was in elementary school", the known question is "Can you play the piano?", etc.

[0057] For example, first, the generation unit 234 generates time-series information and then generates known questions for answering each event indicated by the time-series information. Then, the presentation unit 231 presents the known questions generated by the generation unit 234 to the subject U. In this manner, the information processing device 2 can provide a conversation that is in line with the past events of the subject U.

[0058] The presenting unit 231 may present a known question for making the subject U answer an event for which the subject U feels good among a plurality of events indicated by the time series information. Specifically, first, the generating unit 234 generates known question information in which a question order in which serial numbers are assigned in the order of the emotion index associated with the event of the subject U in the time series information in descending order is associated with the known question. Then, the presenting unit 231 presents the known questions to the subject U in ascending order of the question order. The presenting unit 231 may present to the subject U a known question corresponding to an event for which an emotion index associated with the event is equal to or greater than a predetermined threshold among a plurality of events indicated by the time series information. In this way, the information processing device 2 can reduce the proportion of the conversation provided to the subject U that makes the subject U feel uncomfortable.

[0059] The information processing device 2 may update the time series information when the answer of the subject U to the known question is an event other than the event expected in the known question. Specifically, first, the acquisition unit 233 acquires an answer to the known question for answering the event presented by the presentation unit 231 based on the time series information. Then, when an answer that is not included in the time series information is present among the answers to the known questions acquired by the acquisition unit 233, the generation unit 234 updates the time series information based on the answer. For example, the generation unit 234 updates the time series information by adding an event identified by the answer that is not included in the time series information to the time series information. In this way, the information processing device 2 can prevent the subject U from missing the record of past events.

[0060] [Processing of information processing system S] Next, a description will be given of the process flow of the information processing system S. Fig. 7 is a sequence diagram showing the process flow of the information processing system S. This process starts when the presenter 231 of the information processing device 2 transmits question information to the conversation device 1 in response to receiving a request for transmitting question information from the conversation device 1 (S1).

[0061] When the conversation device 1 acquires the question information, it outputs a voice of the content of the question indicated by the question information through the speaker (S2). After outputting the voice, the conversation device 1 acquires answer information indicating the content of the answer of the target person U through the microphone (S3), and transmits the acquired answer information to the information processing device 2 (S4).

[0062] When the acquisition unit 233 acquires the answer information from the conversation device 1, the presentation unit 231 determines whether or not there is a next question (S5). If the presentation unit 231 determines that there is a next question, the process returns to S1. On the other hand, if the presentation unit 231 determines that there is no next question, the generation unit 234 generates time-series information based on the answer information acquired by the acquisition unit 233 (S6).

[0063] [Effects of this embodiment] As described above, the information processing device 2 generates time-series information indicating each event in a plurality of histories based on a plurality of questions presented to the subject U in order to identify each event in a plurality of histories that are each at a different time, and the answers to each of the plurality of questions presented. In this way, the information processing device 2 can collect past events of the subject U. For example, a caregiver can converse with the subject U on a topic corresponding to the subject U's past events by referring to the time-series information. As a result, the information processing device 2 can provide information that makes it easier to converse with the subject U.

[0064] Furthermore, this invention will make it possible to contribute to Goal 9 of the United Nations' Sustainable Development Goals (SDGs), which is to "build resilient infrastructure, promote industry, innovation and infrastructure."

[0065] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, all or part of the device can be configured by distributing or integrating functionally or physically in any unit. In addition, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment resulting from the combination combines the effect of the original embodiment. [Explanation of symbols]

[0066] 1. Conversation Devices 2. Information processing equipment 21 Communications Department 22 Memory section 23 Control Unit 231 Presentation section 232 Emotion identification part 233 Acquisition Department 234 Generation part U Target Audience S Information Processing System

Claims

1. A presentation unit presents a plurality of questions to a subject for identifying each event in a plurality of histories, each of which has a different time period; an acquisition unit that acquires answers from the subject to each of the plurality of questions; an emotion identification unit that identifies an emotion that the subject has when answering the question, based on a voice or facial expression of the subject when answering the question; a generation unit that generates time-series information indicating events in each of the plurality of histories based on the questions and the answers, the time-series information being associated with the emotions corresponding to the events; An information processing device having the above configuration.

2. The emotion identification unit identifies the emotion of the subject based on the voice by analyzing a waveform of the voice when the subject answers a question. The information processing device according to claim 1 .

3. The emotion identification unit identifies the emotion of the subject based on the facial expression by analyzing the facial expression of the subject when the subject answers a question using a predetermined image analysis technique. The information processing device according to claim 1 .

4. the presentation unit presents, in a case where the plurality of questions are presented one by one, a second question which is one of the questions and is related to the first question, when a response time taken by the subject to respond to a first question which is the question is equal to or longer than a predetermined threshold value and the subject is in a good mood when he or she answered the first question; The information processing device according to claim 1 .

5. the emotion identification unit, when identifying a degree of the emotion, increases the degree of the emotion if the response time is equal to or greater than the predetermined threshold value; The information processing device according to claim 4.

6. the emotion identification unit identifies a response period from when presentation of the question by the presentation unit ends to when the subject starts to answer, based on a time when output of the voice of the question ends and a time when the subject starts to speak an answer corresponding to the question, and identifies the emotion as good if the identified response period is less than a predetermined threshold corresponding to the response period, and identifies the emotion as bad if the response period is equal to or greater than a predetermined threshold corresponding to the response period. The information processing device according to claim 1 .

7. A presentation unit that presents a plurality of questions to a subject to identify each of a plurality of events in a history that are different in time; an acquisition unit that acquires answers from the subject to each of the plurality of questions; a generation unit that generates time-series information indicating events of each of the plurality of histories based on the questions and the answers; having The presentation unit presents a known question to the subject to prompt the subject to answer the question about the event based on the time-series information after the generation unit generates the time-series information. Information processing device.

8. the presentation unit presents the questions in order of oldest history. The information processing device according to claim 1 .

9. the presentation unit presents the question for identifying a particular event in the order of oldest to newest history. The information processing device according to claim 1 .

10. The generation unit generates the time-series information that associates, for each event identified by the answer, the event with one or more histories in which the event occurred. The information processing device according to claim 1 .

11. the presentation unit presents, with priority, a known question that is a question for prompting the subject to answer an event regarding which the subject has a good emotion, among the plurality of events indicated by the time-series information; The information processing device according to claim 1 .

12. the acquisition unit acquires answers to known questions for prompting an answer to the event presented by the presentation unit based on the time-series information; when an answer that is not included in the time-series information is present among the answers to the known questions acquired by the acquisition unit, the generation unit updates the time-series information based on the answer. The information processing device according to claim 1 .

13. The computer executes Presenting the subject with a number of questions to identify events from a number of different periods in the history; obtaining responses from the subject to each of the plurality of questions; Identifying an emotion of the subject when the subject answers the question based on a voice or facial expression of the subject when the subject answers the question; generating time-series information indicating events in each of the plurality of histories based on the questions and the answers, the time-series information associating the events with the emotions corresponding to the events; An information processing method comprising the steps of:

14. Computer, a presentation unit that presents the subject with a plurality of questions for identifying each of a plurality of historical events at different times; an acquisition unit for acquiring answers to each of the plurality of questions by the subject; an emotion identification unit that identifies the emotion of the subject when the subject answers the question based on the voice or facial expression of the subject when the subject answers the question; and a generation unit that generates time-series information indicating events in each of the plurality of histories based on the questions and the answers, the time-series information associating the events with the emotions corresponding to the events; A program to function as a

15. A computer-implemented method for detecting a plurality of Presenting the subject with a number of questions to identify events from a number of different periods in the history; obtaining responses from the subject to each of the plurality of questions; generating time series information indicating events in each of the plurality of histories based on the questions and the answers; After generating the time series information, presenting the subject with a known question for answering the event based on the time series information; An information processing method comprising the steps of:

16. A computer comprising: a presentation unit that presents the subject with a plurality of questions for identifying each of a plurality of historical events at different times; an acquisition unit that acquires answers to the plurality of questions from the subject; and a generation unit that generates time-series information indicating events of each of the plurality of histories based on the questions and the answers; Function as a The presentation unit presents a known question to the subject to prompt the subject to answer the question about the event based on the time-series information after the generation unit generates the time-series information. program.

Images