Giorgos Zacharia is the Chief Scientist at Kayak. He has a PhD in Computer Science from MIT and was an MIT Fulbright Scholar. Zacharia previously served as co-founder, CTO and CSO of Open Ratings, Inc., a leading provider of supply risk management solutions. Zacharia was also instrumental in co-founding two machine learning-driven hedge funds, Stocknomics Ltd. and Emporics Capital Management, LLC. He holds four math and computer science degrees from MIT and has won five medals in International Mathematical and Physics Olympiads.