Meal Photo SNS with Mutual Healthiness Evaluation for Improving Users' Eating Habits. - Yusaku Eigen; Yuuki Nishiyama; Takuro Yonezawa; Tadashi Okoshi; Jin Nakazawa (UbiComp/ISWC Adjunct, 2018)

Motivating Long-term Dietary Habit Modification through Mobile MR Gamification. - Kento Katsumata; Yusaku Eigen; Yuka Noda; Masayoshi Tsuruoka; Satsuki Hashiba; Shotaro Numoto; Shin Katayama; Tadashi Okoshi; Jin Nakazawa (MobiSys, 2019)

IOS Crowd-Sensing Won't Hurt a Bit!: AWARE Framework and Sustainable Study Guideline for iOS Platform. - Yuuki Nishiyama; Denzil Ferreira; Yusaku Eigen; Wataru Sasaki; Tadashi Okoshi; Jin Nakazawa; Anind K. Dey; Kaoru Sezaki (HCI (23), 2020)

SmileCityReport: Emotion-aware Participatory Sensing for Smart Cities with Double-sided Photo Shooting. - Wataru Sasaki; Yusaku Eigen; Arturo Medela; Antonis Litke; Vanessa Clemente Núñez; Tadashi Okoshi; Jin Nakazawa (PerCom Workshops, 2020)