Portrait of Nikos Karampatziakis

Nikos Karampatziakis

Senior Scientist


I am an applied scientist at CISL (/’sɪzəl/) — the Cloud and Information Services Lab in Microsoft. I finished my PhD in Computer Science at Cornell University in the summer of 2012.

My research interests are mainly in Machine Learning and in particular approaches that can deal with large amounts data.


Explore-Exploit Learning @MSR-NYC

Established: October 24, 2013

This is an umbrella project for machine learning with explore-exploit tradeoff: the trade-off between acquiring and using information. This is a mature, yet very active, research area studied in Machine Learning, Theoretical Computer Science, Operations Research, and Economics. Much of our activity focuses on "multi-armed bandits" and "contextual bandits", relatively simple and yet very powerful models for explore-exploit tradeoff. We are located in (or heavily collaborating with) Microsoft Research New York City. Most of us are…