Feasibility Study Toward a Battery-free Place Recognition System Based on Solar Cells. - Yutaka Arakawa; Yugo Nakamura; Hirohiko Suwa; Yoshinori Umetsu; Manato Fujimoto; Keiichi Yasumoto (UbiComp/ISWC Adjunct, 2018)

Multi-Stage Activity Inference for Locomotion and Transportation Analytics of Mobile Users. - Yugo Nakamura; Yoshinori Umetsu; Jose Paolo Talusan; Keiichi Yasumoto; Wataru Sasaki; Masashi Takata; Yutaka Arakawa (UbiComp/ISWC Adjunct, 2018)

EHAAS: Energy Harvesters As A Sensor for Place Recognition on Wearables. - Yoshinori Umetsu; Yugo Nakamura; Yutaka Arakawa; Manato Fujimoto; Hirohiko Suwa (PerCom, 2019)