My research is in theoretical computer science. My interests include complexity theory (in particular, communication complexity and circuit complexity), computational learning theory, and quantum computing.
Research funding: NSF CCF-2220232 (current); NSF grant CCF-1814947; NSF CAREER award CCF-1149018 (2012-2018); Sloan Research Fellowship (2014-2018).
Ph.D. students: Andrey Storozhenko (Ph.D. in progress), Pei Wu (Ph.D. 2021, now a postdoctoral fellow at the Institute for Advanced Study).
PH.D. THESIS
Lower bounds in communication complexity and learning theory via analytic methods
University of Texas at Austin, 2009
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PUBLICATIONS
The approximate degree of DNF and CNF formulas
A. A. Sherstov
STOC 2022
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An optimal separation of randomized and quantum query complexity
A. A. Sherstov, A. A. Storozhenko, and P. Wu
STOC 2021
QIP 2021 contributed talk
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Quantum communication complexity of distribution testing
A. Belovs, A. Castellanos, F. Le Gall, G. Malod, A. A. Sherstov
Quantum Information and Computation,
21(15-16):1261–1273, 2021.
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The hardest halfspace
A. A. Sherstov
Computational Complexity, 30(11):1–85, 2021.
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Vanishing-error approximate degree and QMA complexity
A. A. Sherstov, J. Thaler
To appear in Chicago Journal of Theoretical Computer Science, 2022.
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Near-optimal lower bounds on the threshold degree and sign-rank of AC0
A. A. Sherstov, P. Wu
STOC 2019
Invited to appear in SIAM Journal on Computing (special issue for STOC 2019)
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Algorithmic polynomials
A. A. Sherstov
STOC 2018
SIAM Journal on Computing, 49(6):1173–1231, 2020.
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Inner product and set disjointness: Beyond logarithmically many parties
V. V. Podolskii, A. A. Sherstov
ACM Transactions on Computation Theory, 12(4): 26:1–26:28, 2020.
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Optimal interactive coding for insertions, deletions, and substitutions
A. A. Sherstov, P. Wu
FOCS 2017
IEEE Transactions on Information Theory, 65(10):5971–6000, 2019.
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On multiparty communication with large versus unbounded error
A. A. Sherstov
Theory of Computing, 14(22):1–17, 2018.
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Compressing interactive communication under product distributions
A. A. Sherstov
FOCS 2016
SIAM Journal on Computing, 47(2):367–419, 2018.
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Bounded-communication leakage resilience via parity-resilient circuits
V. Goyal, Y. Ishai, H. K. Maji, A. Sahai, A. A. Sherstov
FOCS 2016
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The power of asymmetry in constant-depth circuits
A. A. Sherstov
FOCS 2015
SIAM Journal on Computing, 47(6):2362–2434, 2018. (Special issue for FOCS 2015)
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Breaking the Minsky-Papert barrier for constant-depth circuits
A. A. Sherstov
STOC 2014
SIAM Journal on Computing, 47(5):1809-1857, 2018. (Special issue for STOC 2014)
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Communication complexity theory: Thirty-five years of set disjointness
A. A. Sherstov
MFCS 2014, invited paper
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Approximating the AND-OR tree
A. A. Sherstov
Theory of Computing, 9(20):653–663, 2013
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Communication lower bounds using directional derivatives
A. A. Sherstov
STOC 2013
Journal of the ACM, 61(6):1–71, 2014
Invited to appear in SIAM Journal on Computing (declined in favor of J. ACM)
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Making polynomials robust to noise
A. A. Sherstov
STOC 2012
Theory of Computing, 9(18):593–615, 2013. (Special issue on Boolean function analysis)
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The multiparty communication complexity of set disjointness
A. A. Sherstov
STOC 2012
SIAM Journal on Computing, 45(4):1450–1489, 2016.
(Special issue for STOC 2012)
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The communication complexity of gap Hamming distance
A. A. Sherstov
Theory of Computing, 8(8):197–208, 2012
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Strong direct product theorems for quantum communication and query
complexity
A. A. Sherstov
STOC 2011
SIAM Journal on Computing, 41(5):1122–1165, 2012
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A separation of NP and coNP in multiparty communication complexity
D. Gavinsky, A. A. Sherstov
Theory of Computing, 6(1):227–245, 2010
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Optimal bounds for sign-representing the intersection of two halfspaces
by polynomials
A. A. Sherstov
STOC 2010
Combinatorica, 33(1):73–96, 2013
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The intersection of two halfspaces has high threshold degree
A. A. Sherstov
FOCS 2009
BEST STUDENT PAPER AWARD
SIAM Journal on Computing, 42(6):2329–2374, 2013.
(Special issue for FOCS 2009)
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On quantum-classical equivalence for composed communication problems
A. A. Sherstov
Quantum Information & Computation, 10(5–6):435–455, 2010
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The sign-rank of AC0
A. A. Razborov, A. A. Sherstov
FOCS 2008
SIAM Journal on Computing, 39(5):1833–1855, 2010
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The unbounded-error communication complexity of symmetric functions
A. A. Sherstov
FOCS 2008
Combinatorica, 31(5):583–614, 2011
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Communication lower bounds using dual polynomials
A. A. Sherstov
Bulletin of the EATCS, 95:59–93, 2008
INVITED SURVEY ARTICLE
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The pattern matrix method
A. A. Sherstov
STOC 2008
SIAM Journal on Computing, 40(6):1969–2000, 2011. (Special issue for STOC 2008)
Original title: "The pattern matrix method for lower bounds on quantum
communication"
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Approximate inclusion-exclusion for arbitrary symmetric functions
A. A. Sherstov
CCC 2008
BEST STUDENT PAPER AWARD
Computational Complexity, 18(2):219–247, 2009. (Special issue for CCC 2008)
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Communication complexity under product and nonproduct distributions
A. A. Sherstov
CCC 2008
Computational Complexity, 19(1):135–150, 2010
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Halfspace matrices
A. A. Sherstov
CCC 2007
BEST STUDENT PAPER AWARD
Computational Complexity, 17(2):149–178, 2008.
(Special issue for CCC 2007)
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Separating AC0 from depth-2 majority circuits
A. A. Sherstov
STOC 2007
SIAM Journal on Computing, 38(6):2113–2129, 2009
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A lower bound for agnostically learning disjunctions
A. R. Klivans, A. A. Sherstov
COLT 2007
Computational Complexity, 19(4):581–604, 2010
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Cryptographic hardness for learning intersections of halfspaces
A. R. Klivans, A. A. Sherstov
FOCS 2006
J. Computer and System Sciences, 75(1):2–12, 2009.
(Special issue on learning)
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Unconditional lower bounds for learning intersections of halfspaces
A. R. Klivans, A. A. Sherstov
COLT 2006
BEST STUDENT PAPER AWARD
Machine Learning, 69(2–3):97–114, 2007.
(Special issue for COLT 2006)
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Powering requires threshold depth 3
A. A. Sherstov
Information Processing Letters, 102(2–3):104–107, 2007
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ARTIFICIAL INTELLIGENCE (2003–04)
Improving action selection in MDP's via knowledge transfer.
A. A. Sherstov, P. Stone
20th National Conference on Artificial Intelligence
(AAAI), 2005.
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Function approximation via tile coding: Automating parameter choice
A. A. Sherstov, P. Stone
6th Symposium on Abstraction, Reformulation, and Approximation
(SARA), 2005.
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Three automated stock-trading agents: A comparative study
A. A. Sherstov, P. Stone
6th AAMAS Workshop on Agent Mediated Electronic Commerce (AMEC),
2004.
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