Satisfaction estimation model adapting apparatus, satisfaction estimating apparatus, methods therefor, and program

A satisfaction estimation apparatus, comprising:

• processing circuitry configured to:
• store a satisfaction estimation model obtained by connecting a speech satisfaction estimation model part estimating a speech satisfaction for each speech using a feature amount of each speech as an input and a conversation satisfaction estimation model part estimating a conversation satisfaction using at least the speech satisfaction for each speech as an input;
• and
• input a feature amount of each speech extracted from a conversation voice in which a conversation including a plurality of speeches is recorded to the satisfaction estimation model to estimate a speech satisfaction for each speech and a conversation satisfaction for the conversation, wherein
• fix a parameter of the conversation satisfaction estimation model part to update a parameter of the speech satisfaction estimation model part using a feature amount of each speech extracted from a conversation voice in which a conversation including a plurality of speeches is recorded, and a correct value of a conversation satisfaction for the conversation.

A satisfaction estimation model adaptation method, comprising:

• storing, in processing circuitry, a satisfaction estimation model obtained by connecting a speech satisfaction estimation model part estimating a speech satisfaction for each speech using a feature amount of each speech as an input and a conversation satisfaction estimation model part estimating a conversation satisfaction using at least the speech satisfaction for each speech as an input;
• storing, in the processing circuitry, adaptation data including a conversation voice in which a conversation including a plurality of speeches is recorded and a correct value of a conversation satisfaction for the conversation;
• and
• by the processing circuitry, by using a feature amount of each speech extracted from the conversation voice and a correct value of the conversation satisfaction, fixing a parameter of the conversation satisfaction estimation model part to update a parameter of the speech satisfaction estimation model part.

A satisfaction estimation method, comprising:

• storing, in processing circuitry, a satisfaction estimation model obtained by connecting a speech satisfaction estimation model part estimating a speech satisfaction for each speech using a feature amount of each speech as an input and a conversation satisfaction estimation model part estimating a conversation satisfaction using at least the speech satisfaction for each speech as an input;
• and
• inputting, by the processing circuitry, a feature amount of each speech extracted from a conversation voice in which a conversation including a plurality of speeches is recorded to the satisfaction estimation model to estimate a speech satisfaction for each speech and a conversation satisfaction for the conversation, wherein
• the satisfaction estimation model fixes a parameter of the conversation satisfaction estimation model part to update a parameter of the speech satisfaction estimation model part using a feature amount of each speech extracted from a conversation voice in which a conversation including a plurality of speeches is recorded, and a correct value of a conversation satisfaction for the conversation.