Konstantin specializes in Machine Learning, forecasting and predictive analytics for large data sets. His research interests include streaming algorithms, stratified sampling, sketches and compression. Konstantin received Ph.D. degrees in Physics from University of Tennessee, Knoxville and M.S. from Moscow Institute of Physics and Technology. Before joining Yahoo! in 2009 Konstantin was working on particle physics experiments and nonlinear QED at Stanford Linear Collider and SSC Labs and then developing enterprise data storage and security software as an architect and developer at a few startups and large companies in Silicon Valley.