Department of Statistics
Department of Electrical Engineering and Computer Science (by courtesy)
University of Michigan, Ann Arbor
"I have lost, but maybe you can fight."
My research group is engaged in fundamental research in the following areas:
I like to work in multi-disciplinary teams and am currently interested in
machine learning problems arising in several scientific areas, especially behavioral sciences, brain sciences,
chemistry, learning sciences, life sciences, and medicine.
I gratefully acknowledge early career support provided by an NSF CAREER grant (2015) and a Sloan Research Fellowship (2017).
Statistical learning theory: We are developing theory and algorithms for
predictions problems (e.g., learning to rank and multilabel learning) with complex label
spaces and where the available human supervision is often weak. Another focus
is on dependent and/or non-stationary data (such as in time series
Sequential prediction in a game theoretic framework: We are trying to
understand the power and limitations of sequential prediction algorithms
when no probabilistic assumptions are placed on the data generating mechanism.
High dimensional and network data analysis: We are developing scalable algorithms with
provable performance guarantees for learning from high dimensional and network
Optimization algorithms: We are creating incremental, distributed and parallel
algorithms for machine learning problems arising in today's data rich world.
Reinforcement learning: We are synthesizing and further developing concepts and techniques from
artificial intelligence, control theory and operations research for pushing
frontier in sequential decision making with a focus on delivering personalized
health interventions via mobile devices. Here is a short video from a talk I gave at NYAS
and an article from ISR Sampler. A related seminar series that I ran during 2013-2018 is archived here.
My alma maters are IIT Kanpur (B.Tech., 2002) and UC Berkeley
(M.A., 2005 and Ph.D., 2007. Advisor: Peter Bartlett).
I was a research assistant professor at TTIC from 2008 to 2010.
From 2010 to 2012, I was a post-doctoral fellow at UT Austin where I worked with Inderjit Dhillon and
I am one of the program leaders for SAMSI's Program on Statistical, Mathematical, and Computational Methods for Precision Medicine.
Activities at U-M I'm involved with:
Students and Postdocs
Publications (also see my Google Scholar page)
454 West Hall
1085 South University
Ann Arbor, MI 48109-1107