Kefan Chen is a PhD student in the Department of the Built Environment at the National University of Singapore (NUS). His research interest focuses on building data analytics and adaptive modeling, aiming to enhance energy efficiency while maintaining occupant comfort. Prior to joining NUS, he was a research assistance at the Environmental Syatems Lab and the Sustainable Urban Systems Lab, where he was the main developer for a GAN-based wind simulation model calibration framework and a video-based human behaviour analysis toolkit.