Cathy O'Neil

Cathy O'Neil earned a Ph.D. in math from Harvard, was postdoc at the MIT math department, and a professor at Barnard College where she published a number of research papers in arithmetic algebraic geometry. She then chucked it and switched over to the private sector. She worked as a quant for the hedge fund D.E. Shaw in the middle of the credit crisis, and then for RiskMetrics, a risk software company that assesses risk for the holdings of hedge funds and banks. She is currently a data scientist on the New York start-up scene, writes a blog at, and is involved with Occupy Wall Street.

Doing Data Science Doing Data Science
by Rachel Schutt, Cathy O'Neil
October 2013
Print: $44.99
Ebook: $38.99

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Cathy blogs at:

On Being a Data Skeptic

October 03 2013

People come to data science in all sorts of ways. I happen to be someone who came via finance. Trained as a mathematician, I worked first at a hedge fund and then a financial risk software company, each for about … read more

Nate Silver confuses cause and effect, ends up defending corruption

December 21 2012

This piece originally appeared on Mathbabe. It’s republished with permission. I just finished reading Nate Silver’s newish book, The Signal and the Noise: Why so many predictions fail – but some don’t. The good news First off, let me say this: … read more

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