DIALOGUE SYSTEM FOR ELDERLY PEOPLE CONSIDERING IMPRESSION FORMATION AND USER'S CHARACTER

Abstract

In recent years, lacks of conversation among elderly people are becoming a serious problem accompanying an increase in elderly living alone. For this trend, dialogue systems for solving the lack of conversation by elderly people have received attention. As elderly people are thought to like to talk, current dialogue systems for elderly people are specialized in listening to the story. However, it will be difficult for elderly people to speak positively to the dialogue systems from the beginning. In this paper, we propose a dialogue system that considers psychological factors such as communication process and user's character. In the proposed method, communication between elderly people and the dialogue system is divided into two stages. In the initial dialogue, an agent talks positively to make elderly people easy to talk. In the late dialogue, we propose two kinds of agents that adopt different dialogue methods according to the character of the user. Finally, we conducted experiments on the formation of impressions in the initial dialogue and verified the effectiveness of the proposed method.