Hi! I am Letian “Zac” Chen, a fourth-year PhD student at Georgia Tech. I received my Bachelor’s degrees in psychology and computer science from Peking University in 2018 and a Master’s degree in computer science from Georgia Tech in 2020. I love researching and implementing cool ideas that work on robots. I am interested in all kinds of intelligence problems, both artificial intelligence, and human intelligence. My PhD research focuses on enabling robots to gain knowledge from humans in hassle-free ways, e.g., inferring human’s intent in Learning from Demonstration settings, teasing out heterogeneity and suboptimality from the demonstrations. I envision a future where everyone has the ability to teach robots effortlessly and robots become a valuable part of our life through my work.