The explosion of big data in recent years, driven by rapid advances in science and technology, provides unprecedented opportunities for us to quantitatively understand social and economic systems using a wide range of methodologies in computing, networks, and analytics. Dr Gao Jian will share several examples to illustrate how big-data analytical tools and the science of science and innovation approaches can help advance computational social science research. This seminar will show how interdisciplinary, mixed-methods approaches can help us better understand complex social systems. Dr Gao Jian will share his study in this seminar.