Roban Hultman Kramer

holding my breath

Machine Epistemology

GitHub Profile

Maching Learning Engineer at Stripe

(since January, 2015)

I work mainly on improving our fraud prevention models.

Past Positions

Data Scientist at Gerson Lehrman Group

(May 2012 - December 2014)

I built predictive models and recommendation systems.

Zwicky Prize Fellow in Astrophysics at ETH Zürich (Swiss Federal Institute of Technology)


My research focused on studying the early universe using light from distant quasars.



My interests include: python (SciPy, NumPy, pandas, IPython), ruby, scala (scalding, brushfire), machine learning, topic modeling, Bayesian inference (probabilistic data analysis), markov chain Monte-Carlo algorithms (MCMC), data visualization (Matplotlib, d3), and git.

Machine Epistemology

Talk at DataGotham 2012

Astrophysics Publications