Vitaly Feldman

 

I’m a research scientist in CS Theory Group at IBM Almaden Research Center.

Before joining the group in Aug 2007 I spent 5 very enjoyable years at Harvard University (as a PhD student advised by Prof. Leslie Valiant and as a postdoc)

Contact: vitaly.edu^gmail.com (note: my us.ibm.com address is for IBM related matters only)

 

Research

 

My research interests are primarily in Computational Learning Theory (Wikipedia entry) and Computational Complexity.

Recently, I have also been working on understanding of natural learning systems: learning by the brain and evolution as learning.

This work is based on the models pioneered by Leslie Valiant (brain, evolvability).

 

Program Committee: COLT 2008, RANDOM 2009.

 

 Recent papers

 

Agnostic Learning of Monomials by Halfspaces is Hard.

With Venkatesan Guruswami, Prasad Raghavendra and Yi Wu.

Apr 2009 (to appear)

 

A Complete Characterization of Statistical Query Learning with Applications to Evolvability.

IEEE Symposium on Foundation of Computer Science (FOCS), 2009 (to appear)

 

Sorting and Selection with Imprecise Comparisons (proceedings version. Full version coming soon)

With Miklos Ajtai, Avinatan Hassidim and Jelani Nelson.

International Colloquium on Automata, Languages and Programming (ICALP), A. 2009 (to appear).

 

Robustness of Evolvability

Conference on Learning Theory (COLT), 2009.

 

Experience-Induced Neural Circuits That Achieve High Capacity.

With Leslie Valiant

Neural Computation, 2009 (to appear)

 

The Learning Power of Evolution.

With Leslie Valiant

Open Problems/New Directions session of Conference on Learning Theory (COLT), 2008, pp 513-514.

 

On The Power of Membership Queries in Agnostic Learning

Journal of Machine Learning Research, 10(Feb):163--182, 2009. Extended abstract in COLT 2008.

 

Evolvability from Learning Algorithms.

ACM Symposium on Theory of Computing (STOC), 2008. pp 619-628.

 

Separating Models of Learning with Faulty Teachers

With Shrenik Shah

Theoretical Computer Science  journal, 410(19),  2009, pp. 1903-1912 (Special issue on ALT 2007).

 

On Agnostic Learning of Parities, Monomials and Halfspaces

With Parikshit Gopalan, Subhash Khot, and Ashok Ponnuswami

SIAM Journal on Computing 2009 (Special issue on FOCS 2006). Extended abstracts in CCC 2006 and FOCS 2006.

 

Hardness of Approximate Two-level Logic Minimization and PAC Learning with Membership Queries

Journal of Computer and System Sciences 75(1), 2009, pp. 13-26 (Special issue on Learning Theory in 2006). Extended abstract in STOC 2006.

 

Attribute Efficient and Non-adaptive Learning of Parities and DNF Expressions

Journal of Machine Learning Research  8(Jul), 2007, pp.1431-1460 (Special issue on COLT 2005).

 

The Complexity of Properly Learning Simple Concept Classes

With Misha Alekhnovich, Mark Braverman, Adam Klivans, and Toni Pitassi.

Journal of Computer and System Sciences  74(1), 2008, pp.16-34 (Special issue on Learning Theory in 2004). Extended abstract in FOCS 2004.

 

All journal publications

All conference publications

 

Ph.D. Thesis. Efficiency and Computational Limitations of Learning Algorithms. Harvard University. January 2007 (revised Jan 2008).

 

Surveys:

Hardness of Proper Learning.

The Encyclopedia of Algorithms, Springer-Verlag, 2008.

 

Statistical Query Learning.

The Encyclopedia of Algorithms, Springer-Verlag, 2008.

 

 

Personal

I’m married to Polina, a consultant at Blu Skye.

My favorite hobby is competitive ballroom dancing (aka DanceSport). As usual check the Wikipedia entry for more info about this exciting activity (which incidentally includes a photo of me competing at the MIT Open Competition 2006).

I also enjoy photography, reading, cinema, biking, hiking, skiing, and travel.

 

Disclaimer.

Void where prohibited. No purchase necessary. Keep out of the reach of children.