Professor and Head, Department of Computer SciencePurdue University

Education

Ph.D/M.Phil./M.Sc. in Computer Science (May 2003), Computer Science Department, Yale University
BS/M.Sc. in Computer Engineering (July 1997), Computer Engineering and Informatics Department, University of Patras

Research Interests

Randomized Numerical Linear Algebra (RandNLA) & its applications to Data Science, Machine Learning, and AI

Links: Wikipedia, Google Scholarshort biofull CV, LinkedIn

Chcek out this great introductory video and blog for RandNLA by DJ Rich of TrueTheta.

Randomization in Numerical Linear Algebra made a cameo appearance in Netflix's hit series 'The Lincoln Lawyer'!  Watch this short clip from Season 1, Episode 3 (disclaimer). Michael Mahoney and I coined this term in late 2011 and the first workshop on Randomized Numerical Linear Algebra (RandNLA) was held during FOCS 2012 (check the Nuit Blanche and My Biased Coin blog posts for details).

News 

Nov '24: Our article (with Ilse Ipsen) on Stochastic Rounding 2.0 has now appeared in the November 2024 issue of the SIAM News

Oct '24: SIAM News article covering our 2024 Gene Golub SIAM Summer School (G2S3) on Iterative and Randomized Methods for Large-Scale Inverse Problems.

Jul '24: As of July 1st, I assumed the role of Department Head for the Department of Computer Science at Purdue University.

Jul '24: 2024 Gene Golub SIAM Summer School (G2S3) on Iterative and Randomized Methods for Large-Scale Inverse Problems:

May '24: Slides from my talk at the SIAM Conference on Applied Linear Algebra (LA24).

Mar '24: Congratulations to Gregory Dexter for successfully defending his thesis. Gregory will join Linkedin as Senior Research Scientist.

Feb '24: Dr. Myson Burch (PhD Purdue CS '23) discussing how to build tools that shape the future of health science.

Jan '24: Semester-long program on "Stochastic and Randomized Algorithms in Scientific Computing: Foundations and Applications" at ICERM, Brown University, in Spring 2026. Co-organized with: Harbir AntilJulianne ChungYoussef M Marzouk; Agnieszka MiedlarArvind Saibaba.

Previous years: 2023; 2022; 2021; 2020; 2019201820172006-2016.