Conversation robot participating in group conversation

Yosuke Matsusaka*, Tsuyoshi Tojo, Tetsunori Kobayashi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


We developed a conversation system which can participate in a group conversation. Group conversation is a form of conversation in which three or more participants talk to each other about a topic on an equal footing. Conventional conversation systems have been designed under the assumption that each system merely talked with only one person. Group conversation is different from these conventional systems in the following points. It is necessary for the system to understand the conversational situation such as who is speaking, to whom he is speaking, and also to whom the other participants pay attention. It is also necessary for the system itself to try to affect the situation appropriately. In this study, we realized the function of recognizing the conversational situation, by combining image processing and acoustic processing, and the function of working on the conversational situation utilizing facial and body actions of the robot. Thus, a robot that can join in the group conversation was realized.

Original languageEnglish
Pages (from-to)26-36
Number of pages11
JournalIEICE Transactions on Information and Systems
Issue number1
Publication statusPublished - 2003 Jan


  • Face-to-face conversation system
  • Group conversation
  • Multimodal system
  • Spoken dialogue system

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Artificial Intelligence


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