Jianfei researches large scale machine learning in Tsinghua University. He develops fast algorithms and scalable systems to speed up various machine learning tasks, including topic modeling, deep generative modeling and deep learning on graphs. His WarpLDA project handles millions of topics from billions of web pages, and he is one of the core developers of ZhuSuan, a framework for deep generative models. Jianfei won gold medal of National Olympiad in Informatics of China in high school, and was ranked top-5 in Baidu Astar and Youdao programming contest.