Takayoshi Yoshimura

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About

Takayoshi Yoshimura is a researcher focused on developing conversational robots that can provide meaningful social interaction, particularly for elderly users. His key research areas include spoken dialogue systems, active listening, and emotion recognition for human-robot interaction. Yoshimura’s major contribution is the creation of an active listening system for conversation robots, designed to reduce dementia and loneliness in older adults. The system uses speech recognition to generate appropriate responses—such as backchanneling, repeating user utterances, and asking about missing predicates—while also producing empathetic replies based on emotion estimation. A critical innovation is its robustness to speech recognition errors, as it considers recognition confidence when generating responses. In an evaluation with 110 participants, 45.5% sustained a conversation for over two minutes when discussing “impressive travel experiences,” demonstrating the system’s effectiveness. With 15 citations, this work highlights Yoshimura’s impact in advancing socially assistive robotics, offering a practical path toward more natural, supportive human-robot dialogues that address real-world challenges in aging societies.