System and conversation information output method

• US 10,636,422 B2
• Filed: 01/04/2018
• Issued: 04/28/2020
• Est. Priority Date: 01/25/2017
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Numata, Takashi, Miyoshi, Toshinori, Sato, Hiroki
• Primary Examiner(s): Shin, Seong-Ah A
• Application Number:
  US15/861,798
• Publication Number:
  US 20180211664A1
• Time in Patent Office: 845 Days
• Field of Search: None
• CPC Class Codes: G06F 3/167 Audio in a user interface, e.g. using voice commands for navigating, audio feedback
• CPC Class Codes: G10L 15/075 supervised, i.e. under machine guidance
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 15/26 Speech to text systems G10L15/08 takes precedence
• CPC Class Codes: G10L 17/26 Recognition of special voice characteristics, e.g. for use in lie detectors; Recognition of animal voices
• CPC Class Codes: G10L 2015/227 of the speaker; Human-factor methodology

Abstract

There is provided a system in which empowerment is performed by outputting conversation information to the user, the system including: a computer including a processor, a memory, and an interface; and a measuring device that measures signals of a plurality of types, wherein the processor calculates values of conversation parameters of a plurality of attributes for evaluating a state of a user who performs the empowerment on the basis of a plurality of signals measured by the measuring device, the processor selects a selection parameter which is a conversation parameter of a change target on the basis of the values of the conversation parameters of the plurality of attributes, the processor decides conversation information for changing a value of the selection parameter, and the processor outputs the decided conversation information to the user.

Claims

1. A system in which empowerment is performed by outputting conversation information to the user, comprising:

a computer including a processor, a memory, and an interface; and

a measuring device that measures signals of a plurality of types,

wherein the computer includes a selection algorithm for deciding conversation information to be output for each of a plurality of attribute conversation parameters for evaluating the state of the user who performs the empowerment,

wherein the processor calculates values of conversation parameters of a plurality of attributes for evaluating a state of a user who performs the empowerment on the basis of a plurality of signals measured by the measuring device,

the processor selects a selection parameter, which is a conversation parameter of a change target, and is selected on the basis of selection policy information and the values of the conversation parameters of the plurality of attributes,

wherein the computer holds selection policy information for selecting the selection parameter, the selection policy information includes a reference threshold value for the values of the conversation parameters of the plurality of attributes which is a selection criterion for the selection parameter,

the processor decides the conversation information for changing a value of the selection parameter by using the selection algorithm corresponding to the selection parameter, and

the processor outputs the decided conversation information to the user.

2. The system according to claim 1,

wherein the computer holds conversation history information in which the values of the conversation parameters of the plurality of attributes, the selection parameter, and the conversation information to be output to the user are associated,

the processor analyzes a correlation between the conversation parameters of the plurality of attributes and a correlation between the conversation parameters of the plurality of attributes and the conversation information to be output to the user, and

the processor updates the reference threshold value for each of the conversation parameters of the plurality of attributes on the basis of a result of the analysis.

3. The system according to claim 2,

wherein the processor generates new conversation information of each of the conversation parameters of the plurality of attributes on the basis of the result of the analysis and updates the selection algorithm.

4. The system according to claim 3,

wherein the conversation parameters of the plurality of attributes include an empowerment parameter for evaluating an intellectual power and a mental status of the user and a continuity parameter for evaluating a continuation desire of the user for the empowerment.

5. The system according to claim 1,

wherein the computer holds definition information indicating a relation between a time and a change amount in a conversation parameter of a first attribute for the conversation parameter of the first attribute,

the processor receives an input of a target value of the conversation parameter of the first attribute,

the processor calculates a prediction time taken until a value of the conversation parameter of the first attribute reaches a target value on the basis of the definition information, the target value of the conversation parameter of the first attribute, and a current value of the conversation parameter of the first attribute, and

the processor outputs the conversation information including the prediction time to the user.

6. A conversation information output method in a system in which empowerment is performed by outputting conversation information to a user, the system including a computer including a processor, a memory, and an interface and a measuring device that measures signals of a plurality of types, the conversation information output method comprising:

a first step of calculating, by the processor, values of conversation parameters of a plurality of attributes for evaluating a state of a user who performs the empowerment on the basis of a plurality of signals measured by the measuring device;

a second step of selecting, by the processor, a selection parameter which is a conversation parameter of a change target, and is selected on the basis of the selection policy information and the values of the conversation parameters of the plurality of attributes;

a third step of deciding, by the processor, conversation information for changing a value of the selection parameter by using a selection algorithm corresponding to the selection parameter; and

a fourth step of outputting, by the processor, the decided conversation information to the user,

wherein the computer includes the selection algorithm for deciding the conversation information to be output for each of a plurality of attribute conversation parameters for evaluating the state of the user who performs the empowerment,

wherein the computer holds selection policy information for selecting the selection parameter, and

wherein the selection policy information includes a reference threshold value for the values of the conversation parameters of the plurality of attributes which is a selection criterion for the selection parameter.

7. The conversation information output method according to claim 6,

wherein the computer holds conversation history information in which the values of the conversation parameters of the plurality of attributes, the selection parameter, and the conversation information to be output to the user are associated, and

the conversation information output method further comprises

a step of analyzing, by the process, a correlation between the conversation parameters of the plurality of attributes and a correlation between the conversation parameters of the plurality of attributes and the conversation information to be output to the user, and

a step of updating, by the process, the reference threshold value for each of the conversation parameters of the plurality of attributes on the basis of a result of the analysis.

8. The conversation information output method according to claim 7, further comprising:

a step of generating, by the processor, new conversation information of each of the conversation parameters of the plurality of attributes on the basis of the result of the analysis and updates the selection algorithm.

9. The conversation information output method according to claim 8,

wherein the conversation parameters of the plurality of attributes include an empowerment parameter for evaluating an intellectual power and a mental status of the user and a continuity parameter for evaluating a continuation desire of the user for the empowerment.

10. The conversation information output method according to claim 6,

wherein the computer holds definition information indicating a relation between a time and a change amount in a conversation parameter of a first attribute for the conversation parameter of the first attribute,

the first step includes a step of receiving, by the processor, an input of a target value of the conversation parameter of the first attribute, and

the fourth step includes

a step of calculating, by the processor, a prediction time taken until a value of the conversation parameter of the first attribute reaches a target value on the basis of the definition information, the target value of the conversation parameter of the first attribute, and a current value of the conversation parameter of the first attribute, and

a step of outputting, by the processor, the conversation information including the prediction time to the user.