I am a postdoc at the Smart Centre, Massachusetts Institute of Technology (MIT). I was a Research Fellow in the Department of the Built Environment, National University of Singapore (NUS). I received my Ph.D. degree in the Department of Automation, Tsinghua University (THU) in 2023. My research interest lies in smart buildings and smart cities, including building occupancy detection/estimation, computer vision and generative models. My homepage :https://kailaisun.github.io/.