Work Study System Using Indoor Positioning Technology. - Takumi Tsuji; Yuhei Kotsuka; Sumiika Arima (IIAI-AAI, 2018)

Development and Evaluation of Chat-bot Systems: The Applications of Citizen Service Procedures. - Yuhei Kotsuka; Ryo Murakami; Sumika Arima (IIAI-AAI, 2019)

Variable Selection for Correlated High-Dimensional Data with Infrequent Categorical Variables: Based on Sparse Sample Regression and Anomaly Detection Technology. - Yuhei Kotsuka; Sumika Arima (KES-IDT, 2021)