Li Renjie graduated from the Junior College of the University of Science and Technology of China and the Ph.D. of the University of Rochester, USA. Currently the head of data science at Riot Games. Committed to improving the user experience and even human life by developing innovative data products. Established the Riot Games Data Science department from scratch, led the team to use large data analysis from the massive data platform of League of Legends to improve business decision-making and operational efficiency on a large scale, and developed refined operations and accurate analysis using machine learning algorithms. Forecasts, personalized recommendations, natural language processing and other world-leading data products.