Paul Siegel
I am a data scientist studying the geometry and dynamics of social networks at Brandwatch .
Formerly: I got a PhD in math at Penn State in operator algebras; my thesis involved applications of Ktheory for operator algebras to geometry and topology. I spent 3 years as a postdoc at Columbia University.
I have a math blog , but I don't write for it nearly often enough.
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 math.columbia.edu/~siegel
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