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[2C4-03] Dialogue Selection Algorithm Based on the Amount of User’s Emotional Expression in a Circulate-Learning Robot Connecting Elderly People
Keywords:Conversation robot, Dialogue selection algorithm, Elderly people
We proposed a Circulate-Learning Robot for solving isolation of elderly people. Circulate-Learning Robot is a teachable robot which is designed to go to various places and be taught by people. It was found from the previous research that it is important to equalize the amount of teaching from the user. In addition, we focused on the importance of empathy in new relationship building. We propose a dialog selection algorithm to equalize the amount of user’s emotional expression for a user of Circulate-Learning Robot. The number of morphemes in the sentence in which the emotion expression word appears was defined as the amount of emotional expression. In the proposed method, users are clustered using this amount of emotional expression. The topic is decided from the co-occurrence probability of an independent word and an emotion expression word. The proposed system switches dialogue strategy between empathy expression and promote to expressing impressions. This paper proposes the algorithm that selects a dialog strategy according to the amount of user's emotional expression.