Yu, W., Nakahata, K., Sun, G., Namiki, A., Suwa, S., Tsujimura, M., … Huang, S. Efficient Active Sensing with Categorized Further Explorations for a Home Behavior-Monitoring Robot. Journal of Healthcare Engineering, 2017, 6952695. https://doi.org/10.1155/2017/6952695 (Original work published 2017)