Voice dialogue apparatus, voice dialogue method, and non-transitory computer readable media

A voice dialogue apparatus for analyzing an acquired user's voice, generating a parrot-like response sentence for repeating the voice based on a result of the analysis, and outputting the generated parrot-like response sentence, the voice dialogue apparatus comprising:

• storage means for storing the user's past voice;
• average calculation means for calculating an average value of voice sentence lengths each indicating a length of the user's voice based on the user's past voice stored in the storage means;
• candidate generation means for combining a dependency word, which establishes a dependency relation with a noun included in the acquired user's voice, with the noun to generate a plurality of response sentence candidates;
• and
• repetition generation means for selecting the response sentence candidate including a preset number of dependency words from among the plurality of response sentence candidates generated by the candidate generation means, adding the dependency word to the selected response sentence candidate or deleting the dependency word from the selected response sentence candidate to generate a final response sentence candidate so that a sentence length of the final response sentence candidate becomes close to the average value of the voice sentence lengths calculated by the average calculation means, and using the final response sentence candidate as it is or processing the final response sentence candidate to generate the parrot-like response sentence.

A voice dialogue method for analyzing an acquired user's voice, generating a parrot-like response sentence for repeating the voice based on a result of the analysis, and outputting the generated parrot-like response sentence, the voice dialogue method comprising:

• storing the user's past voice;
• calculating an average value of voice sentence lengths each indicating a length of the user's voice based on the stored user's past voice;
• combining words included in the acquired user's voice to generate a plurality of response sentence candidates;
• and
• selecting, in association with the calculated average value of the voice sentence lengths, one response sentence candidate from among the generated plurality of response sentence candidates and using the selected response sentence candidate as it is or processing the selected response sentence candidate to generate the parrot-like response sentence.

Non-transitory computer readable media stored a program for analyzing an acquired user's voice, generating a parrot-like response sentence for repeating the voice based on a result of the analysis, and outputting the generated parrot-like response sentence, the program causing a computer to execute:

• a process of calculating an average value of voice sentence lengths each indicating a length of the user's voice based on the stored user's past voice;
• a process of combining a dependency word, which establishes a dependency relation with a noun included in the acquired user's voice, with the noun to generate a plurality of response sentence candidates;
• and
• a process of selecting, in association with the calculated average value of the voice sentence lengths, one response sentence candidate from among the generated plurality of response sentence candidates and using the selected response sentence candidate as it is or processing the selected response sentence candidate to generate the parrot-like response sentence.