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Ryuji Yamazaki

3 accepted papers

2019

Decoding the Perceived Difficulty of Communicated Contents by Older People: Toward Conversational Robot-Assistive Elderly Care

RA-L 2019

In this study, we propose a semi-supervised learning model for decoding of the perceived difficulty of communicated content by older people. Our model is based on mapping of the older people's prefrontal cortex (PFC) activity during their verbal communication onto fine-grained cluster spaces of a wo

Cited by 4SourceScholar
2019

Older People Prefrontal Cortex Activation Estimates Their Perceived Difficulty of a Humanoid-Mediated Conversation

RA-L 2019

In this letter, we extend our recent results on prediction of the older people's perceived difficulty of verbal communication during a humanoid-mediated storytelling experiment to the case of a longitudinal conversation that was conducted over a four-week period and included a battery of conversatio

Cited by 4SourceScholar
2018

Similarity of the Impact of Humanoid and In-Person Communications on Frontal Brain Activity of Older People

IROS 2018poster

We report results of the analyses of the effect of communication through a humanoid robot in comparison with in-person, video-chat, and speaker on frontal brain activity of older people during an storytelling experiment. Our results suggest that whereas communicating through a physically embodied me…

Cited by 6SourceScholar