Yan Qu is VP of data science and chief scientist at ShareThis, where she leads the data science initiatives. She designed the Social Quality Index (SQI)a unique metric for valuing the social activity that occurs around online content. SQI won the Adweek Project Issac Award and has been adopted by major ad agencies for media planning purposes. Previously, she headed the advanced research team at AOL’s Advertising.com unit, where she pioneered the “lookalike” and predictive modeling techniques for the company. She holds 15 patents in the areas of online advertising, predictive modeling, large-scale data analytics, social network structures, social quality, and text mining. Yan was named one of Fortune’s Big Data All-Stars in 2014. She holds a an M.S. in computational linguistics and a PhD in information and language technologies from Carnegie Mellon University, and an M.S. in linguistics from Tsinghua University in Beijing.