Zitao Liu is Head of Engineering, ThinkAcademy International 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 70+ 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 has won numerous international AI/ML competitions including NeurIPS 2020 education challenge. He is a recipient of ACM 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.