Expressive Opinion Generation

Beyond the Cooperative Conversation Principle Let us begin by looking at an example of a question asked by one person and answered by another: A : “Do you have any favorite actor or actress?” B : “Yes, my favorite actress is Audrey Hepburn. Audrey is, just as one would expect, a charming and beautiful woman even in her private life!“ In this example, person A asked about person B’s favorite […]


Facilitation Strategies

Regulating A Four-Participant Conversation We present a framework for facilitation robots that regulates imbalanced engagement density in four-participant conversation as the forth participant with proper procedures for obtaining initiatives. Four is the special number in multiparty conversations. The three-participant conversation is the minimum unit where the participants autonomously organize a multiparty conversational situation. The fourth participant is the first person who can objectively observe the conversational situation. In three-participant conversations, […]


NANDOKU – Conversation Robots for Elderly Care Application

We proposed a robot that promotes an enjoyable party game as a facilitation robot system. In this task, a robot participates in a quiz game as one of participants and tries to promote the other participants’ enjoyment of the game. The functions implemented in the robot are: (1) The robot participates in the group’s communication using its basic group conversation functions; (2) The robot performs the game according to the […]

Design, Projects


Concept As a robotic platform for multiparty conversation facilitation, we present the design of SCHEMA robot. In order to participate in multiparty conversational situations, and be recognized as a ratified participant, a robot needs to have capabilities to exchange conversational protocols, which include organizing participation structure, transmitting messages, and turn-taking. Such protocols essentially needs robots’ embodied functions, including facial expressions, head gestures, and directional control of torso. Based on our […]


Starting Point

Journey Towards Ph.D (2006 – 2015) From acknowledgement of the dissertation It was 2005 in Los Angeles, where professor Tetsunori Kobayashi and I met for almost the first time. We were in a party hall for a reception of SIGGRAPH, an international conference on computer graphics and interactive technologies, coincidentally standing next to each other. I had just graduated from the school of literature, majoring in psychology and media studies, […]