34 巻 (2016) 5 号 p. 309-315
This paper shows analysis results of dialogue histories between chat robot and eldery peoples. The chat robot have been developing for the purpose of long-term use as home robot. The authors tested the chat robot with eldery peoples who are over 65 years old in a week to 10 days. During the experiments, the participants chated with this robot anytime they want in their daily life. The authors analyzed this dialogue histories. Therefore, the dialogue includes around 30% noun. The recognition rate is upward tendency in each day, but the rate is depends on the each user's speech condition. Moreover, the participants talk well about “go-out” and “meal”.