I joined the Industrial and Operations Engineering Department at the University of Michigan in 2016. Prior to that, I was a postdoc at the Interactive Robotics Group of MIT and the SUTD-MIT International Design Center , working with Julia A. Shah and Katja Hölttä-Otto. I obtained my Ph.D. in Human Factors Engineering from Nanyang Technological University Singapore in 2014, working with Taezoon Park and Christopher D. Wickens.
I study interactions, including human-human interaction, human-autonomy interaction and human-robot interaction. I want to understand how humans interact with each other, with autonomous agents and with robots, and to propose design solutions facilitating such interactions.
Improving shift handover between medical residents
The continuity of patient care and limited resident working hours routinize the handover of patients between doctors. Despite of the pivotal role to ensure quality of patient care, clinical handovers were found to be vulnerable episodes contributing to near misses, adverse events and waste of healthcare resources. This project aimed to model and examine the factors influencing the performance of pre-handover and handover communication; and to propose design guidelines for the development of an electronic handover tool.
Trust in automation/robot
The use of automated decision aids (ADAs) to assist human performance is growing at an unprecedented pace. As the capabilities of the automation advances, there is an increasing possibility that it might function actively to perceive and analyze information, make decisions, and execute actions. Ideally, with the assistance of automation, task performance of a human operator should increase. Unfortunately, performance gains are not always achieved, one of the reasons being the human operator’s inappropriate trust and dependence on automated technologies. The goal of this project was to examine how trust-reliability miscalibration affects human-automation team performance.
Yang, X.J., Wickens, C.D., Hölttä-Otto, K. (2016). How users adjust trust in automation: Contrast effect and hindsight bias. Proceedings of the 60th Human Factors and Ergonomics Society Annual Meeting, 196-200.
Gombolay, M., Yang, X.J., Hayes, B., Seo, N., Wadhwania, S., Liu, Z., Yu, T., Shah, N., Golen, T. & Shah, J. A. (2016). Robotic Assistance in Coordination of Patient Care. Proceedings of Robotics: Science and Systems (RSS 2016), Michigan, USA, June 18-22.
Yang, X.J., Wickens, C.D., Park, T., Fong, L. & Siah, K.T.H. (2015). The effects of information access cost and overconfidence bias on medical residents’ pre-handover performance. Human factors, 57(8), 1459-1471
Yang, X.J., Park, T., Siah, K.T.H., Ang, S.B.L., & Donchin, Y. (2015). One size fits all? Challenges faced by physicians during shift handovers in a hospital with high sender/recipient ratio. Singapore Medical Journal, 56(2), 109-115.
Siah, K.T.H., Soh, A.Y.S., Koh, C.J., Tan, M.N., Yang, X. (2014). A qualitative concept analysis of natural language data of an online irritable bowel syndrome discussion forum, Neurogastroenterology & Mobility, 26(s1), 6. Young Investigator Award
Yang, X., Dong, A., & Helander, M.G. (2012). The analysis of knowledge integration in collaborative engineering teams. Journal of Engineering Design, 23(2), 119-138. (pdf)