Zitao Liu is the Head of Engineering, Xueersi 1 on 1 at TAL Education Group (NYSE:TAL), one of the largest leading education and technology enterprises in China. His research is in the area of machine learning, and includes contributions in the areas of artificial intelligence in education, multimodal knowledge representation and user modeling. He has published his research in highly ranked conference proceedings, such as NeurIPS, AAAI, WWW, AIED, etc. and serves as the executive committee of the International AI in Education Society and top tier AI conference/workshop organizers/program committees. He won the 1st place at NeurIPS 2020 education challenge (Task 3), 1st place at Ubicomp 2020 time series classification challenge, 1st place at CCL 2020 humor computation competition and 2nd place at EMNLP 2020 ClariQ challenge. He is a recipient of ACM/CCF Distinguished Speaker and Beijing Nova Program 2020. Before joining TAL, Zitao was a senior research scientist at Pinterest and received his Ph.D degree in Computer Science from University of Pittsburgh.