“Who is this” quiz dialogue system and users´ evaluation

In order to design a dialogue system that users enjoy and want to be near for a long time, it is important to know the effect of the system´s action on users. This paper describes ldquoWho is thisrdquo quiz dialogue system and its users´ evaluation. Its quiz-style information presentation has been found effective for educational tasks. In our ongoing effort to make it closer to a conversational partner, we implemented the system as a stuffed-toy (or CG equivalent). Quizzes are automatically generated from Wikipedia articles, rather than from hand-crafted sets of biographical facts. Network mining is utilized to prepare adaptive system responses. Experiments showed the effectiveness of person network and the relationship of user attribute and interest level.