Puzzled state judging device, puzzled state judging method, and program

摘要

The question utterance detection unit detects the question utterance included in the user's voice, and the frequency acquisition unit detects the frequency of the question utterance that is the number of question utterances detected by the question utterance detection unit within the call holding period per unit time. The state determination unit determines that the user is in a confused state when the frequency of the questioned utterance acquired by the frequency acquisition unit is equal to or greater than the first threshold.