Associate Professor, Department of Computer SciencePurdue University


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

Theory: Randomized Numerical Linear Algebra (RandNLA).
Applications: Big Data, with a particular focus on population genetics data.

Short bio, full CV, Google Scholar page.


Sep '18: Workshop on Randomized Numerical Linear Algebra and Applications (September 24-27, 2018), under the auspices of the Foundations of Data Science program at the Simons Institute for the Theory of Computing at UC Berkeley

Jul '18: Click here for the slides of my talk at NASCA 2018.

May '18: Click here (PDF) and here (PDF) for reviews of the CRC Handbook of Big Data (co-edited with Peter BuhlmannMichael Kane, and Mark J. van der Laan) by Torsten Hothorn and Yichao Wu

Apr '18: Congratulations to Eugenia Kontopoulou for been awarded the John R. Rice Fellowship in Scientific Computing for 2018-2019, as well as a fellowship from the Gerondelis Foundation.

Jan '18: Our Lecture Notes on Randomized Numerical Linear Algebra (joint work with Michael W. Mahoney) are now available; the notes cover randomized matrix multiplication, randomized over-constrained linear regression problems, and a basic randomized algorithm to approximate the top singular vectors of a matrix.

Oct '17: Primary Program Committee member, IEEE International Parallel and Distributed Systems Symposium, May 2018.

Sep '17: Our paper on "Tensor Sparsification via a Bound on the Spectral Norm of Random Tensors" was awarded the second prize by the Information and Inference journal for the papers published in 2015 and 2016.

Jun '17: Our paper on "Fast Monte-Carlo Algorithms for Matrices II: Computing a low-rank approximation to a matrix" was included in the list of classic papers for 2006 by Google Scholar.

Apr '17: Senior Program Committee member, Conference on Information and Knowledge Management (CIKM), Nov 2017.

Mar '17: Our work on disproving Fallmerayer's hypothesis on the extinction of the medieval Peloponnesean Greeks has now appeared in the European Journal of Human Genetics. Articles discussing this discovery have appeared in multiple news avenues (click here for a detailed article - in Greek - that appeared in the Greek newspaper Vima).

Jan '17: Editorial Board Member, SIAM Journal on Scientific Computing (SISC).

Jan '17: Editorial Board Member, Applied and Computational Harmonic Analysis (ACHA).

News before 2017