Amit Chakrabarti
Professor
Appointments
Professor of Computer Science
Area of Expertise
Theory of computation including computational complexity, with an emphasis on lower bounds,
Discrete mathematics,
Algorithms and data structures, with an emphasis on algorithms for massive data streams, and for combinatorial optimization.
Biography
I am interested broadly in theoretical computer science: the study and discovery of fundamental computational principles that are mathematical truths, unaffected by changes in computing technology and hardware.
Education
B.Tech., IIT Bombay
M.A., Princeton University
Ph.D., Princeton University
Publications
A. Chakrabarti, G. Cormode, A. McGregor, J. Thaler, and S. Venkatasubramanian. “Verifiable Stream Computation and Arthur–Merlin Communication,” (with G. Cormode, A. McGregor, J. Thaler, S. Venkatasubramanian), in Proc. 30th Ann. Conf. Comput. Complexity (CCC 2015).
A. Chakrabarti, L. K. Fleischer, C. Weibel. “When the Cut Condition is Enough: A Complete Characterization for Multiflow Problems in Series-Parallel Networks,” in Proc. 44th Ann. ACM Symp. Theory Comput. (STOC 2012) 19-26.
A. Chakrabarti and O. Regev. “An Optimal Lower Bound on the Communication Complexity of Gap-Hamming-Distance”, SIAM J. Comput., 41:5 (2012) 1299-1317.
A. Chakrabarti, G. Cormode and A. McGregor. “ A Near-Optimal Algorithm for Estimating the Entropy of a Stream,” ACM Trans. Alg., 6:3 (2010) Art. 51.
A. Chakrabarti and O. Regev. “An Optimal Randomized Cell Probe Lower Bound for Approximate Nearest Neighbor Searching,” SIAM J. Comput., 39:5 (2010) 1919–1940.
A. Chakrabarti, S. Khot, and Y. Shi. “Evasiveness of Subgraph Containment and Related Properties,” SIAM J. Comput., 31:3 (2002) 866-875.
Works in Progress
Developing the connections between information theory and computational complexity
Algorithms for analyzing large graphs using limited memory
Algebraic techniques and problems in computational complexity
Thorough study of the complexity of fundamental communication problems
Selected Works & Activities
Organizer of workshop on Communication Complexity and Applications (Banff, Canada)
Organizer of program on Inference Problems, part of IHP thematic program on the Nexus of Information and Computation Theories (Paris, France)