Cathy O'Neil

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Data Scientist

Cathy O’Neil earned a Ph.D. in math from Harvard, and was a professor at Barnard College where she published a number of research papers in arithmetic algebraic geometry. She then switched over to the private sector, working as a quant for the hedge fund D.E. Shaw in the middle of the credit crisis.  She left finance in 2011 and started working as a data scientist in the New York start-up scene, building models that predicted people’s purchases and clicks. She launched the Lede Program in Data Journalism at Columbia in 2014. She is a weekly guest on the Slate Money podcast and is the author of a book about the dark side of big data called Weapons of Math Destruction.