Qi Lu has served as vice chairman of the board of directors since February 2017. Dr. Lu served as our chief operating officer from January 2017 to June 2018. Dr. Lu is currently the founding chief executive officer of Y Combinator China and head of Y Combinator Research. Prior to joining Baidu, Dr. Lu served as Microsoft’s global executive vice president, overseeing the Applications and Services Group. Dr. Lu joined Microsoft in 2009 as president of Online Services. Earlier in his career, Dr. Lu joined Yahoo! in 1998, later becoming senior vice president in charge of search and advertising technologies, and subsequently executive vice president in 2007. Dr. Lu holds both bachelor and master degrees in computer science from Fudan University in Shanghai and a Ph.D. in computer science from Carnegie Mellon University. He holds over 40 US patents and has authored many papers in his field.