Yu Xu, PhD, is cofounder and CEO at GraphSQL. Prior to founding GraphSQL, Yu worked at Twitter, Teradata, and IBM in various data engineering roles. He is an author on 26 US patents (13 issued & 13 pending) in the areas of parallel computing, large scale data analysis, information retrieval, and data management. He has published 13 papers at top database conferences and served on the program committees of top conferences in his field.