A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z - Other

**B**

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TR09-012
| 4th February 2009
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Noga Alon, Shai Gutner#### Balanced Hashing, Color Coding and Approximate Counting

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TR06-088
| 9th July 2006
__

Per Austrin#### Balanced Max 2-Sat might not be the hardest

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TR11-068
| 27th April 2011
__

L. Elisa Celis, Omer Reingold, Gil Segev, Udi Wieder#### Balls and Bins: Smaller Hash Families and Faster Evaluation

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TR17-162
| 26th October 2017
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Klim Efremenko, Ankit Garg, Rafael Mendes de Oliveira, Avi Wigderson#### Barriers for Rank Methods in Arithmetic Complexity

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TR15-180
| 4th November 2015
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Bo Tang, Jiapeng Zhang#### Barriers to Black-Box Constructions of Traitor Tracing Systems

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TR07-003
| 5th January 2007
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Jin-Yi Cai, Pinyan Lu#### Bases Collapse in Holographic Algorithms

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TR14-127
| 11th October 2014
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Alexandros G. Dimakis, Anna Gal, Ankit Singh Rawat, Zhao Song#### Batch Codes through Dense Graphs without Short Cycles

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TR01-078
| 6th November 2001
__

Matthias Krause#### BDD-based Cryptanalysis of Keystream Generators

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TR15-082
| 13th May 2015
__

Boaz Barak, Ankur Moitra, Ryan O'Donnell, Prasad Raghavendra, Oded Regev, David Steurer, Luca Trevisan, Aravindan Vijayaraghavan, David Witmer, John Wright#### Beating the random assignment on constraint satisfaction problems of bounded degree

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TR11-027
| 28th February 2011
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Venkatesan Guruswami, Johan Hastad, Rajsekar Manokaran, Prasad Raghavendra, Moses Charikar#### Beating the Random Ordering is Hard: Every ordering CSP is approximation resistant

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TR07-109
| 7th October 2007
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Venkatesan Guruswami, Atri Rudra#### Better Binary List-Decodable Codes via Multilevel Concatenation

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TR17-072
| 25th April 2017
__

Eric Allender, Andreas Krebs, Pierre McKenzie#### Better Complexity Bounds for Cost Register Machines

Revisions: 1

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TR03-080
| 12th November 2003
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Venkatesan Guruswami#### Better Extractors for Better Codes?

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TR10-164
| 4th November 2010
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Falk Unger#### Better gates can make fault-tolerant computation impossible

Revisions: 1

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TR12-123
| 28th September 2012
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Parikshit Gopalan, Raghu Meka, Omer Reingold, Luca Trevisan, Salil Vadhan#### Better pseudorandom generators from milder pseudorandom restrictions

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TR04-090
| 3rd November 2004
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Kazuyuki Amano, Akira Maruoka#### Better Simulation of Exponential Threshold Weights by Polynomial Weights

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TR14-125
| 9th October 2014
__

Anindya De#### Beyond the Central Limit Theorem: asymptotic expansions and pseudorandomness for combinatorial sums

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TR02-005
| 3rd January 2002
__

A. Pavan, Alan L. Selman#### Bi-Immunity Separates Strong NP-Completeness Notions

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TR13-138
| 5th October 2013
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Itai Benjamini, Gil Cohen, Igor Shinkar#### Bi-Lipschitz Bijection between the Boolean Cube and the Hamming Ball

Revisions: 1

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TR15-096
| 5th June 2015
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Abhishek Bhowmick, Shachar Lovett#### Bias vs structure of polynomials in large fields, and applications in effective algebraic geometry and coding theory

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TR16-112
| 18th July 2016
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Mohammad T. Hajiaghayi, Amey Bhangale, Rajiv Gandhi, Rohit Khandekar, Guy Kortsarz#### Bicovering: Covering edges with two small subsets of vertices

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TR15-177
| 9th November 2015
__

Stephen A. Fenner, Rohit Gurjar, Thomas Thierauf#### Bipartite Perfect Matching is in quasi-NC

Revisions: 2

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TR09-005
| 7th December 2008
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Emanuele Viola#### Bit-Probe Lower Bounds for Succinct Data Structures

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TR07-042
| 7th May 2007
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Zohar Karnin, Amir Shpilka#### Black Box Polynomial Identity Testing of Depth-3 Arithmetic Circuits with Bounded Top Fan-in

Revisions: 2
,
Comments: 1

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TR01-050
| 24th June 2001
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Ran Canetti, Joe Kilian, Erez Petrank, Alon Rosen#### Black-Box Concurrent Zero-Knowledge Requires $\tilde\Omega(\log n)$ Rounds

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TR15-056
| 3rd April 2015
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Sanjam Garg, Steve Lu, Rafail Ostrovsky#### Black-Box Garbled RAM

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TR11-046
| 2nd April 2011
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Shubhangi Saraf, Ilya Volkovich#### Black-Box Identity Testing of Depth-4 Multilinear Circuits

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TR10-102
| 12th May 2010
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Per Kristian Lehre, Carsten Witt#### Black-Box Search by Unbiased Variation

Revisions: 1

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TR07-044
| 23rd April 2007
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Philipp Hertel#### Black-White Pebbling is PSPACE-Complete

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TR10-167
| 5th November 2010
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Nitin Saxena, C. Seshadhri#### Blackbox identity testing for bounded top fanin depth-3 circuits: the field doesn't matter

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TR09-032
| 16th April 2009
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Neeraj Kayal, Shubhangi Saraf#### Blackbox Polynomial Identity Testing for Depth 3 Circuits

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TR12-160
| 20th November 2012
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Frederic Green, Daniel Kreymer, Emanuele Viola#### Block-symmetric polynomials correlate with parity better than symmetric

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TR95-049
| 19th October 1995
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Anna Gal, Avi Wigderson#### Boolean complexity classes vs. their arithmetic analogs

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TR13-191
| 26th December 2013
__

Petr Savicky#### Boolean functions with a vertex-transitive group of automorphisms

Revisions: 2
,
Comments: 1

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TR13-141
| 8th October 2013
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Leonid Gurvits#### Boolean matrices with prescribed row/column sums and stable homogeneous polynomials: combinatorial and algorithmic applications

Revisions: 1

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TR07-131
| 16th November 2007
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Satyen Kale#### Boosting and hard-core set constructions: a simplified approach

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TR18-035
| 21st February 2018
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Manindra Agrawal, Sumanta Ghosh, Nitin Saxena#### Bootstrapping variables in algebraic circuits

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TR13-135
| 27th September 2013
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Scott Aaronson#### BosonSampling Is Far From Uniform

Revisions: 2

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TR04-121
| 7th December 2004
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Vikraman Arvind, Piyush Kurur, T.C. Vijayaraghavan#### Bounded Color Multiplicity Graph Isomorphism is in the #L Hierarchy.

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TR99-012
| 19th April 1999
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Eric Allender, Andris Ambainis, David Mix Barrington, Samir Datta, Huong LeThanh#### Bounded Depth Arithmetic Circuits: Counting and Closure

Comments: 1

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TR16-099
| 13th June 2016
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Takayuki Sakai, Kazuhisa Seto, Suguru Tamaki, Junichi Teruyama#### Bounded Depth Circuits with Weighted Symmetric Gates: Satisfiability, Lower Bounds and Compression

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TR09-117
| 18th November 2009
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Ilias Diakonikolas, Daniel Kane, Jelani Nelson#### Bounded Independence Fools Degree-2 Threshold Functions

Revisions: 1

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TR09-016
| 21st February 2009
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Ilias Diakonikolas, Parikshit Gopalan, Ragesh Jaiswal, Rocco Servedio, Emanuele Viola#### Bounded Independence Fools Halfspaces

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TR16-169
| 3rd November 2016
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Elad Haramaty, Chin Ho Lee, Emanuele Viola#### Bounded independence plus noise fools products

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TR16-102
| 4th July 2016
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Ravi Boppana, Johan Håstad, Chin Ho Lee, Emanuele Viola#### Bounded independence vs. moduli

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TR15-182
| 13th November 2015
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Andrej Bogdanov, Yuval Ishai, Emanuele Viola, Christopher Williamson#### Bounded Indistinguishability and the Complexity of Recovering Secrets

Revisions: 1

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TR16-093
| 4th June 2016
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Cyrus Rashtchian#### Bounded Matrix Rigidity and John's Theorem

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TR07-051
| 18th April 2007
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Pilar Albert, Elvira Mayordomo, Philippe Moser#### Bounded Pushdown dimension vs Lempel Ziv information density

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TR97-035
| 31st July 1997
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Richard Chang#### Bounded Queries, Approximations and the Boolean Hierarchy

Revisions: 1

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TR10-115
| 17th July 2010
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Shachar Lovett, Emanuele Viola#### Bounded-depth circuits cannot sample good codes

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TR02-023
| 16th April 2002
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Josh Buresh-Oppenheim, Paul Beame, Ran Raz, Ashish Sabharwal#### Bounded-depth Frege lower bounds for weaker pigeonhole principles

Revisions: 1

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TR01-037
| 21st February 2001
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Rustam Mubarakzjanov#### Bounded-Width Probabilistic OBDDs and Read-Once Branching Programs are Incomparable

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TR12-096
| 17th July 2012
__

Albert Atserias, Sergi Oliva#### Bounded-width QBF is PSPACE-complete

Revisions: 3

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TR16-142
| 11th September 2016
__

Jason Li, Ryan O'Donnell#### Bounding laconic proof systems by solving CSPs in parallel

Revisions: 1

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TR10-049
| 24th March 2010
__

Alexey Pospelov#### Bounds for Bilinear Complexity of Noncommutative Group Algebras

Revisions: 1
,
Comments: 1

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TR17-071
| 14th April 2017
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Young Kun Ko, Arial Schvartzman#### Bounds for the Communication Complexity of Two-Player Approximate Correlated Equilibria

Revisions: 1

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TR94-012
| 12th December 1994
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#### Bounds for the Computational Power and Learning Complexity of Analog Neural Nets

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TR13-136
| 27th September 2013
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Paul Goldberg, Aaron Roth#### Bounds for the Query Complexity of Approximate Equilibria

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TR03-019
| 3rd April 2003
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Eli Ben-Sasson, Oded Goldreich, Madhu Sudan#### Bounds on 2-Query Codeword Testing.

Revisions: 1

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TR09-138
| 14th December 2009
__

Gillat Kol, Ran Raz#### Bounds on 2-Query Locally Testable Codes with Affine Tests

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TR03-033
| 6th May 2003
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Meir Feder, Dana Ron, Ami Tavory#### Bounds on Linear Codes for Network Multicast

Comments: 1

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TR09-142
| 17th December 2009
__

Aaron Potechin#### Bounds on Monotone Switching Networks for Directed Connectivity

Revisions: 1

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TR98-044
| 31st July 1998
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Jiri Sgall#### Bounds on Pairs of Families with Restricted Intersections

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TR16-013
| 12th January 2016
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Ludwig Staiger#### Bounds on the Kolmogorov complexity function for infinite words

Revisions: 1

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TR03-029
| 1st April 2003
__

Philippe Moser#### BPP has effective dimension at most 1/2 unless BPP=EXP

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TR11-103
| 31st July 2011
__

Yang Li#### BQP and PPAD

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TR09-104
| 26th October 2009
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Scott Aaronson#### BQP and the Polynomial Hierarchy

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TR01-048
| 3rd June 2001
__

Jui-Lin Lee#### Branching program, commutator, and icosahedron, part I

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TR05-098
| 4th September 2005
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Oded Goldreich#### Bravely, Moderately: A Common Theme in Four Recent Results

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TR05-124
| 2nd November 2005
__

Kooshiar Azimian#### Breaking Diffie-Hellman is no Easier than Root Finding

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TR10-068
| 15th April 2010
__

Shir Ben-Israel, Eli Ben-Sasson, David Karger#### Breaking local symmetries can dramatically reduce the length of propositional refutations

__
TR07-098
| 2nd October 2007
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Tali Kaufman, Simon Litsyn, Ning Xie#### Breaking the $\epsilon$-Soundness Bound of the Linearity Test over GF(2)

__
TR14-009
| 21st January 2014
__

Alexander A. Sherstov#### Breaking the Minsky-Papert Barrier for Constant-Depth Circuits

__
TR13-160
| 20th November 2013
__

Zeev Dvir, Shubhangi Saraf, Avi Wigderson#### Breaking the quadratic barrier for 3-LCCs over the Reals

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TR16-090
| 27th May 2016
__

Bernhard Haeupler, Ameya Velingker#### Bridging the Capacity Gap Between Interactive and One-Way Communication

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TR15-202
| 11th December 2015
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Meena Mahajan, Raghavendra Rao B V, Karteek Sreenivasaiah#### Building above read-once polynomials: identity testing and hardness of representation

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TR10-127
| 9th August 2010
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Brett Hemenway, Rafail Ostrovsky#### Building Injective Trapdoor Functions From Oblivious Transfer

Revisions: 1

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TR06-068
| 6th April 2006
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Patrick Briest, Piotr Krysta#### Buying Cheap is Expensive: Hardness of Non-Parametric Multi-Product Pricing

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TR10-177
| 16th November 2010
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Venkatesan Guruswami, Prasad Raghavendra, Rishi Saket, Yi Wu#### Bypassing UGC from some optimal geometric inapproximability results

Revisions: 1

Noga Alon, Shai Gutner

Color Coding is an algorithmic technique for deciding efficiently

if a given input graph contains a path of a given length (or

another small subgraph of constant tree-width). Applications of the

method in computational biology motivate the study of similar

algorithms for counting the number of copies of a ...
more >>>

Per Austrin

We show that, assuming the Unique Games Conjecture, it is NP-hard to approximate Max 2-Sat within $\alpha_{LLZ}^{-}+\epsilon$, where $0.9401 < \alpha_{LLZ}^{-} < 0.9402$ is the believed approximation ratio of the algorithm of Lewin, Livnat and Zwick.

This result is surprising considering the fact that balanced instances of Max 2-Sat, i.e. ... more >>>

L. Elisa Celis, Omer Reingold, Gil Segev, Udi Wieder

A fundamental fact in the analysis of randomized algorithm is that when $n$ balls are hashed into $n$ bins independently and uniformly at random, with high probability each bin contains at most $O(\log n / \log \log n)$ balls. In various applications, however, the assumption that a truly random hash ... more >>>

Klim Efremenko, Ankit Garg, Rafael Mendes de Oliveira, Avi Wigderson

Arithmetic complexity, the study of the cost of computing polynomials via additions and multiplications, is considered (for many good reasons) simpler to understand than Boolean complexity, namely computing Boolean functions via logical gates. And indeed, we seem to have significantly more lower bound techniques and results in arithmetic complexity than ... more >>>

Bo Tang, Jiapeng Zhang

Reducibility between different cryptographic primitives is a fundamental problem in modern cryptography. As one of the primitives, traitor tracing systems help content distributors recover the identities of users that collaborated in the pirate construction by tracing pirate decryption boxes. We present the first negative result on designing efficient traitor tracing ... more >>>

Jin-Yi Cai, Pinyan Lu

Holographic algorithms are a novel approach to design polynomial time computations using linear superpositions. Most holographic algorithms are designed with basis vectors of dimension 2. Recently Valiant showed that a basis of dimension 4 can be used to solve in P an interesting (restrictive SAT) counting problem mod 7. This ... more >>>

Alexandros G. Dimakis, Anna Gal, Ankit Singh Rawat, Zhao Song

Consider a large database of $n$ data items that need to be stored using $m$ servers.

We study how to encode information so that a large number $k$ of read requests can be performed \textit{in parallel} while the rate remains constant (and ideally approaches one).

This problem is equivalent ...
more >>>

Matthias Krause

Many of the keystream generators which are used in practice are LFSR-based in the sense

that they produce the keystream according to a rule $y=C(L(x))$,

where $L(x)$ denotes an internal linear bitstream, produced by a small number of parallel

linear feedback shift registers (LFSRs),

and $C$ denotes ...
more >>>

Boaz Barak, Ankur Moitra, Ryan O'Donnell, Prasad Raghavendra, Oded Regev, David Steurer, Luca Trevisan, Aravindan Vijayaraghavan, David Witmer, John Wright

We show that for any odd $k$ and any instance of the Max-kXOR constraint satisfaction problem, there is an efficient algorithm that finds an assignment satisfying at least a $\frac{1}{2} + \Omega(1/\sqrt{D})$ fraction of constraints, where $D$ is a bound on the number of constraints that each variable occurs in. ... more >>>

Venkatesan Guruswami, Johan Hastad, Rajsekar Manokaran, Prasad Raghavendra, Moses Charikar

We prove that, assuming the Unique Games Conjecture (UGC), every problem in the class of ordering constraint satisfaction problems (OCSP) where each constraint has constant arity is approximation

resistant. In other words, we show that if $\rho$ is the expected fraction of constraints satisfied by a random ordering, then obtaining ...
more >>>

Venkatesan Guruswami, Atri Rudra

We give a polynomial time construction of binary codes with the best

currently known trade-off between rate and error-correction

radius. Specifically, we obtain linear codes over fixed alphabets

that can be list decoded in polynomial time up to the so called

Blokh-Zyablov bound. Our work ...
more >>>

Eric Allender, Andreas Krebs, Pierre McKenzie

Cost register automata (CRA) are one-way finite automata whose transitions have the side effect that a register is set to the result of applying a state-dependent semiring operation to a pair of registers. Here it is shown that CRAs over the semiring (N,min,+) can simulate polynomial time computation, proving along ... more >>>

Venkatesan Guruswami

We present an explicit construction of codes that can be list decoded

from a fraction $(1-\eps)$ of errors in sub-exponential time and which

have rate $\eps/\log^{O(1)}(1/\eps)$. This comes close to the optimal

rate of $\Omega(\eps)$, and is the first sub-exponential complexity

construction to beat the rate of $O(\eps^2)$ achieved by ...
more >>>

Falk Unger

We consider fault-tolerant computation with formulas composed of noisy Boolean gates with two input wires. In our model all gates fail independently of each other and of the input. When a gate fails, it outputs the opposite of the correct output. It is known that if all gates fail with ... more >>>

Parikshit Gopalan, Raghu Meka, Omer Reingold, Luca Trevisan, Salil Vadhan

We present an iterative approach to constructing pseudorandom generators, based on the repeated application of mild pseudorandom restrictions. We use this template to construct pseudorandom generators for combinatorial rectangles and read-once CNFs and a hitting set generator for width-3 branching programs, all of which achieve near optimal seed-length even in ... more >>>

Kazuyuki Amano, Akira Maruoka

We give an explicit construction of depth two threshold circuit with polynomial weights and $\tilde{O}(n^5)$ gates that computes an arbitrary threshold function. We also give the construction of such circuits with $O(n^3/\log n)$ gates computing the COMPARISON and CARRY functions, and that with $O(n^4/\log n)$ gates computing the ADDITION function. ... more >>>

Anindya De

In this paper, we construct pseudorandom generators for the class of \emph{combinatorial sums}, a class of functions first studied by \cite{GMRZ13}

and defined as follows: A function $f: [m]^n \rightarrow \{0,1\}$ is said to be a combinatorial sum if there exists functions $f_1, \ldots, f_n: [m] \rightarrow \{0,1\}$ such that

more >>>

A. Pavan, Alan L. Selman

We prove that if for some epsilon > 0 NP contains a set that is

DTIME(2^{n^{epsilon}})-bi-immune, then NP contains a set that 2-Turing

complete for NP but not 1-truth-table complete for NP. Lutz and Mayordomo

(LM96) and Ambos-Spies and Bentzien (AB00) previously obtained the

same consequence using strong ...
more >>>

Itai Benjamini, Gil Cohen, Igor Shinkar

We construct a bi-Lipschitz bijection from the Boolean cube to the Hamming ball of equal volume. More precisely, we show that for all even $n \in {\mathbb N}$ there exists an explicit bijection $\psi \colon \{0,1\}^n \to \left\{ x \in \{0,1\}^{n+1} \colon |x| > n/2 \right\}$ such that for every ... more >>>

Abhishek Bhowmick, Shachar Lovett

Let $f$ be a polynomial of degree $d$ in $n$ variables over a finite field $\mathbb{F}$. The polynomial is said to be unbiased if the distribution of $f(x)$ for a uniform input $x \in \mathbb{F}^n$ is close to the uniform distribution over $\mathbb{F}$, and is called biased otherwise. The polynomial ... more >>>

Mohammad T. Hajiaghayi, Amey Bhangale, Rajiv Gandhi, Rohit Khandekar, Guy Kortsarz

We study the following basic problem called Bi-Covering. Given a graph $G(V,E)$, find two (not necessarily disjoint) sets $A\subseteq V$ and $B\subseteq V$ such that $A\cup B = V$ and that every edge $e$ belongs to either the graph induced by $A$ or to the graph induced by $B$. The ... more >>>

Stephen A. Fenner, Rohit Gurjar, Thomas Thierauf

We show that the bipartite perfect matching problem is in quasi-NC$^2$. That is, it has uniform circuits of quasi-polynomial size and $O(\log^2 n)$ depth. Previously, only an exponential upper bound was known on the size of such circuits with poly-logarithmic depth.

We obtain our result by an almost complete ... more >>>

Emanuele Viola

We prove lower bounds on the redundancy necessary to

represent a set $S$ of objects using a number of bits

close to the information-theoretic minimum $\log_2 |S|$,

while answering various queries by probing few bits. Our

main results are:

\begin{itemize}

\item To represent $n$ ternary values $t \in

\zot^n$ in ...
more >>>

Zohar Karnin, Amir Shpilka

In this paper we consider the problem of determining whether an

unknown arithmetic circuit, for which we have oracle access,

computes the identically zero polynomial. Our focus is on depth-3

circuits with a bounded top fan-in. We obtain the following

results.

1. A quasi-polynomial time deterministic black-box identity testing algorithm ... more >>>

Ran Canetti, Joe Kilian, Erez Petrank, Alon Rosen

We show that any concurrent zero-knowledge protocol for a non-trivial

language (i.e., for a language outside $\BPP$), whose security is proven

via black-box simulation, must use at least $\tilde\Omega(\log n)$

rounds of interaction. This result achieves a substantial improvement

over previous lower bounds, and is the first bound to rule ...
more >>>

Sanjam Garg, Steve Lu, Rafail Ostrovsky

Garbled RAM, introduced by Lu and Ostrovsky, enables the task of garbling a RAM (Random Access Machine) program directly, there by avoiding the inefficient process of first converting it into a circuit. Garbled RAM can be seen as a RAM analogue of Yao's garbled circuit construction, except that known realizations ... more >>>

Shubhangi Saraf, Ilya Volkovich

We study the problem of identity testing for multilinear $\Spsp(k)$ circuits, i.e. multilinear depth-$4$ circuits with fan-in $k$ at the top $+$ gate. We give the first polynomial-time deterministic

identity testing algorithm for such circuits. Our results also hold in the black-box setting.

The running time of our algorithm is ... more >>>

Per Kristian Lehre, Carsten Witt

The complexity theory for black-box algorithms, introduced by

Droste et al. (2006), describes common limits on the efficiency of

a broad class of randomised search heuristics. There is an

obvious trade-off between the generality of the black-box model

and the strength of the bounds that can be proven in such ...
more >>>

Philipp Hertel

The complexity of the Black-White Pebbling Game has remained an open problem for 30 years. It was devised to capture the power of non-deterministic space bounded computation. Since then it has been continuously studied and applied to problems in diverse areas of computer science including VLSI design and more recently ... more >>>

Nitin Saxena, C. Seshadhri

Let C be a depth-3 circuit with n variables, degree d and top fanin k (called sps(k,d,n) circuits) over base field F.

It is a major open problem to design a deterministic polynomial time blackbox algorithm

that tests if C is identically zero.

Klivans & Spielman (STOC 2001) observed ...
more >>>

Neeraj Kayal, Shubhangi Saraf

We study depth three arithmetic circuits with bounded top fanin. We give the first deterministic polynomial time blackbox identity test for depth three circuits with bounded top fanin over the field of rational numbers, thus resolving a question posed by Klivans and Spielman (STOC 2001).

Our main technical result is ... more >>>

Frederic Green, Daniel Kreymer, Emanuele Viola

We show that degree-$d$ block-symmetric polynomials in

$n$ variables modulo any odd $p$ correlate with parity

exponentially better than degree-$d$ symmetric

polynomials, if $n \ge c d^2 \log d$ and $d \in [0.995

\cdot p^t - 1,p^t)$ for some $t \ge 1$. For these

infinitely many degrees, our result ...
more >>>

Anna Gal, Avi Wigderson

This paper provides logspace and small circuit depth analogs

of the result of Valiant-Vazirani, which is a randomized (or

nonuniform) reduction from NP to its arithmetic analog ParityP.

We show a similar randomized reduction between the

Boolean classes NL and semi-unbounded fan-in Boolean circuits and

their arithmetic counterparts. These ...
more >>>

Petr Savicky

A Boolean function is called vertex-transitive, if the partition of the Boolean cube into the preimage of 0 and the preimage of 1 is invariant under a vertex-transitive group of isometric transformations of the Boolean cube. Several constructions of vertex-transitive functions and some of their properties are presented.

Leonid Gurvits

We prove a new efficiently computable lower bound on the coefficients of stable homogeneous polynomials and present its algorthmic and combinatorial applications. Our main application is the first poly-time deterministic algorithm which approximates the partition functions associated with

boolean matrices with prescribed row and (uniformly bounded) column sums within simply ...
more >>>

Satyen Kale

We revisit the connection between boosting algorithms and hard-core set constructions discovered by Klivans and Servedio. We present a boosting algorithm with a certain smoothness property that is necessary for hard-core set constructions: the distributions it generates do not put too much weight on any single example. We then use ... more >>>

Manindra Agrawal, Sumanta Ghosh, Nitin Saxena

We show that for the blackbox polynomial identity testing (PIT) problem it suffices to study circuits that depend only on the first extremely few variables. One only need to consider size-$s$ degree-$s$ circuits that depend on the first $\log^{\circ c} s$ variables (where $c$ is a constant and we are ... more >>>

Scott Aaronson

BosonSampling, which we proposed three years ago, is a scheme for using linear-optical networks to solve sampling problems that appear to be intractable for a classical computer. In a recent manuscript, Gogolin et al. claimed that even an ideal BosonSampling device's output would be "operationally indistinguishable" from a uniform random ... more >>>

Vikraman Arvind, Piyush Kurur, T.C. Vijayaraghavan

In this paper we study the complexity of Bounded Color

Multiplicity Graph Isomorphism (BCGI): the input is a pair of

vertex-colored graphs such that the number of vertices of a given

color in an input graph is bounded by $b$. We show that BCGI is in the

#L hierarchy ...
more >>>

Eric Allender, Andris Ambainis, David Mix Barrington, Samir Datta, Huong LeThanh

Constant-depth arithmetic circuits have been defined and studied

in [AAD97,ABL98]; these circuits yield the function classes #AC^0

and GapAC^0. These function classes in turn provide new

characterizations of the computational power of threshold circuits,

and provide a link between the circuit classes AC^0 ...
more >>>

Takayuki Sakai, Kazuhisa Seto, Suguru Tamaki, Junichi Teruyama

A Boolean function $f: \{0,1\}^n \to \{0,1\}$ is weighted symmetric if there exist a function $g: \mathbb{Z} \to \{0,1\}$ and integers $w_0, w_1, \ldots, w_n$ such that $f(x_1,\ldots,x_n) = g(w_0+\sum_{i=1}^n w_i x_i)$ holds.

In this paper, we present algorithms for the circuit satisfiability problem of bounded depth circuits with AND, ... more >>>

Ilias Diakonikolas, Daniel Kane, Jelani Nelson

Let x be a random vector coming from any k-wise independent distribution over {-1,1}^n. For an n-variate degree-2 polynomial p, we prove that E[sgn(p(x))] is determined up to an additive epsilon for k = poly(1/epsilon). This answers an open question of Diakonikolas et al. (FOCS 2009). Using standard constructions of ... more >>>

Ilias Diakonikolas, Parikshit Gopalan, Ragesh Jaiswal, Rocco Servedio, Emanuele Viola

We show that any distribution on {-1,1}^n that is k-wise independent fools any halfspace h with error \eps for k = O(\log^2(1/\eps)/\eps^2). Up to logarithmic factors, our result matches a lower bound by Benjamini, Gurel-Gurevich, and Peled (2007) showing that k = \Omega(1/(\eps^2 \cdot \log(1/\eps))). Using standard constructions of k-wise ... more >>>

Elad Haramaty, Chin Ho Lee, Emanuele Viola

Let $D$ be a $b$-wise independent distribution over

$\{0,1\}^m$. Let $E$ be the ``noise'' distribution over

$\{0,1\}^m$ where the bits are independent and each bit is 1

with probability $\eta/2$. We study which tests $f \colon

\{0,1\}^m \to [-1,1]$ are $\e$-fooled by $D+E$, i.e.,

$|\E[f(D+E)] - \E[f(U)]| \le \e$ where ...
more >>>

Ravi Boppana, Johan Håstad, Chin Ho Lee, Emanuele Viola

Let $k=k(n)$ be the largest integer such that there

exists a $k$-wise uniform distribution over $\zo^n$ that

is supported on the set $S_m := \{x \in \zo^n : \sum_i

x_i \equiv 0 \bmod m\}$, where $m$ is any integer. We

show that $\Omega(n/m^2 \log m) \le k \le 2n/m + ...
more >>>

Andrej Bogdanov, Yuval Ishai, Emanuele Viola, Christopher Williamson

We say that a function $f\colon \Sigma^n \to \{0, 1\}$ is $\epsilon$-fooled by $k$-wise indistinguishability if $f$ cannot distinguish with advantage $\epsilon$ between any two distributions $\mu$ and $\nu$ over $\Sigma^n$ whose projections to any $k$ symbols are identical. We study the class of functions $f$ that are fooled by ... more >>>

Cyrus Rashtchian

Using John's Theorem, we prove a lower bound on the bounded rigidity of a sign matrix, defined as the Hamming distance between this matrix and the set of low-rank, real-valued matrices with entries bounded in absolute value. For Hadamard matrices, our asymptotic leading constant is tighter than known results by ... more >>>

Pilar Albert, Elvira Mayordomo, Philippe Moser

In this paper we introduce a variant of pushdown dimension called bounded pushdown (BPD) dimension, that measures the density of information contained in a sequence, relative to a BPD automata, i.e. a finite state machine equipped with an extra infinite memory stack, with the additional requirement that every input symbol ... more >>>

Richard Chang

This paper introduces a new model of computation for describing the

complexity of NP-approximation problems. The results show that the

complexity of NP-approximation problems can be characterized by classes of

multi-valued functions computed by nondeterministic polynomial time Turing

machines with a bounded number of oracle queries to an NP-complete

language. ...
more >>>

Shachar Lovett, Emanuele Viola

We study a variant of the classical circuit-lower-bound problems: proving lower bounds for sampling distributions given random bits. We prove a lower bound of $1-1/n^{\Omega(1)}$ on the statistical distance between (i) the output distribution of any small constant-depth (a.k.a.~$\mathrm{AC}^0$) circuit $f : \{0,1\}^{\mathrm{poly}(n)} \to \{0,1\}^n$, and (ii) the uniform distribution ... more >>>

Josh Buresh-Oppenheim, Paul Beame, Ran Raz, Ashish Sabharwal

We prove a quasi-polynomial lower bound on the size of bounded-depth

Frege proofs of the pigeonhole principle $PHP^{m}_n$ where

$m= (1+1/{\polylog n})n$.

This lower bound qualitatively matches the known quasi-polynomial-size

bounded-depth Frege proofs for these principles.

Our technique, which uses a switching lemma argument like other lower bounds

for ...
more >>>

Rustam Mubarakzjanov

Restricted branching programs are considered by the investigation

of relationships between complexity classes of Boolean functions.

Read-once ordered branching programs (or OBDDs) form the most restricted class

of this computation model.

Since the problem of proving exponential lower bounds on the complexity

for general probabilistic OBDDs is open so ...
more >>>

Albert Atserias, Sergi Oliva

Tree-width is a well-studied parameter of structures that measures their similarity to a tree. Many important NP-complete problems, such as Boolean satisfiability (SAT), are tractable on bounded tree-width instances. In this paper we focus on the canonical PSPACE-complete problem QBF, the fully-quantified version of SAT. It was shown by Pan ... more >>>

Jason Li, Ryan O'Donnell

We show that the basic semidefinite programming relaxation value of any constraint satisfaction problem can be computed in NC; that is, in parallel polylogarithmic time and polynomial work. As a complexity-theoretic consequence we get that MIP1$[k,c,s] \subseteq $ PSPACE provided $s/c \leq (.62-o(1))k/2^k$, resolving a question of Austrin, Håstad, and ... more >>>

Alexey Pospelov

We study the complexity of multiplication in noncommutative group algebras which is closely related to the complexity of matrix multiplication. We characterize such semisimple group algebras of the minimal bilinear complexity and show nontrivial lower bounds for the rest of the group algebras. These lower bounds are built on the ... more >>>

Young Kun Ko, Arial Schvartzman

In the recent paper of~\cite{BR16}, the authors show that, for any constant $10^{-15} > \varepsilon > 0$ the communication complexity of $\varepsilon$-approximate Nash equilibria in $2$-player $n \times n$ games is $n^{\Omega(\varepsilon)}$, resolving the long open problem of whether or not there exists a polylogarithmic communication protocol. In this paper ... more >>>

It is shown that high order feedforward neural nets of constant depth with piecewise

polynomial activation functions and arbitrary real weights can be simulated for boolean

inputs and outputs by neural nets of a somewhat larger size and depth with heaviside

gates and weights ...
more >>>

Paul Goldberg, Aaron Roth

We analyze the number of payoff queries needed to compute approximate correlated equilibria. For multi-player, binary-choice games, we show logarithmic upper and lower bounds on the query complexity of approximate correlated equilibrium. For well-supported approximate correlated equilibrium (a restriction where a player's behavior must always be approximately optimal, in the ... more >>>

Eli Ben-Sasson, Oded Goldreich, Madhu Sudan

We present upper bounds on the size of codes that are locally

testable by querying only two input symbols. For linear codes, we

show that any $2$-locally testable code with minimal distance

$\delta n$ over a finite field $F$ cannot have more than

$|F|^{3/\delta}$ codewords. This result holds even ...
more >>>

Gillat Kol, Ran Raz

We study Locally Testable Codes (LTCs) that can be tested by making two queries to the tested word using an affine test. That is, we consider LTCs over a finite field F, with codeword testers that only use tests of the form $av_i + bv_j = c$, where v is ... more >>>

Meir Feder, Dana Ron, Ami Tavory

Traditionally, communication networks are composed of

routing nodes, which relay and duplicate data. Work in

recent years has shown that for the case of multicast, an

improvement in both rate and code-construction complexity can be

gained by replacing these routing nodes by linear coding

nodes. These nodes transmit linear combinations ...
more >>>

Aaron Potechin

We prove that any monotone switching network solving directed connectivity on $N$ vertices must have size $N^{\Omega(\log N)}$

more >>>Jiri Sgall

We study pairs of families ${\cal A},{\cal B}\subseteq

2^{\{1,\ldots,r\}}$ such that $|A\cap B|\in L$ for any

$A\in{\cal A}$, $B\in{\cal B}$. We are interested in the maximal

product $|{\cal A}|\cdot|{\cal B}|$, given $r$ and $L$. We give

asymptotically optimal bounds for $L$ containing only elements

of $s<q$ residue classes modulo ...
more >>>

Ludwig Staiger

The Kolmogorov complexity function of an infinite word $\xi$ maps a natural

number to the complexity $K(\xi|n)$ of the $n$-length prefix of $\xi$. We

investigate the maximally achievable complexity function if $\xi$ is taken

from a constructively describable set of infinite words. Here we are

interested ...
more >>>

Philippe Moser

We prove that BPP has Lutz's p-dimension at most 1/2 unless BPP equals EXP.

Next we show that BPP has Lutz's p-dimension zero unless BPP equals EXP

on infinitely many input lengths.

We also prove that BPP has measure zero in the smaller complexity

class ...
more >>>

Yang Li

We initiate the study of the relationship between two complexity classes, BQP

(Bounded-Error Quantum Polynomial-Time) and PPAD (Polynomial Parity Argument,

Directed). We first give a conjecture that PPAD is contained in BQP, and show

a necessary and sufficient condition for the conjecture to hold. Then we prove

that the conjecture ...
more >>>

Scott Aaronson

The relationship between BQP and PH has been an open problem since the earliest days of quantum computing. We present evidence that quantum computers can solve problems outside the entire polynomial hierarchy, by relating this question to topics in circuit complexity, pseudorandomness, and Fourier analysis.

First, we show that there ... more >>>

Jui-Lin Lee

In this paper we give a direct proof of $N_0=N_0^\prime$, i.e., the equivalence of

uniform $NC^1$ based on different recursion principles: one is OR-AND complete

binary tree (in depth $\log n$) and the other is the recursion on notation with value

bounded in $[0,k]$ and $|x|(=n)$ many ...
more >>>

Oded Goldreich

We highlight a common theme in four relatively recent works

that establish remarkable results by an iterative approach.

Starting from a trivial construct,

each of these works applies an ingeniously designed

sequence of iterations that yields the desired result,

which is highly non-trivial. Furthermore, in each iteration,

more >>>

Kooshiar Azimian

In this paper we compare hardness of two well known problems: the Diffie-Hellman problem and the root finding problem. We prove that in any cyclic group computing Diffie-Hellman is not weaker than root finding if certain circumstances are met. As will be discussed in the paper this theorem can affect ... more >>>

Shir Ben-Israel, Eli Ben-Sasson, David Karger

This paper shows that the use of ``local symmetry breaking'' can dramatically reduce the length of propositional refutations. For each of the three propositional proof systems known as (i) treelike resolution, (ii) resolution, and (iii) k-DNF resolution, we describe families of unsatisfiable formulas in conjunctive normal form (CNF) that are ... more >>>

Tali Kaufman, Simon Litsyn, Ning Xie

For Boolean functions that are $\epsilon$-far from the set of linear functions, we study the lower bound on the rejection probability (denoted $\textsc{rej}(\epsilon)$) of the linearity test suggested by Blum, Luby and Rubinfeld. The interest in this problem is partly due to its relation to PCP constructions and hardness of ... more >>>

Alexander A. Sherstov

The threshold degree of a Boolean function $f$ is the minimum degree of

a real polynomial $p$ that represents $f$ in sign: $f(x)\equiv\mathrm{sgn}\; p(x)$. In a seminal 1969

monograph, Minsky and Papert constructed a polynomial-size constant-depth

$\{\wedge,\vee\}$-circuit in $n$ variables with threshold degree $\Omega(n^{1/3}).$ This bound underlies ...
more >>>

Zeev Dvir, Shubhangi Saraf, Avi Wigderson

We prove that 3-query linear locally correctable codes over the Reals of dimension $d$ require block length $n>d^{2+\lambda}$ for some fixed, positive $\lambda >0$. Geometrically, this means that if $n$ vectors in $R^d$ are such that each vector is spanned by a linear number of disjoint triples of others, then ... more >>>

Bernhard Haeupler, Ameya Velingker

We study the communication rate of coding schemes for interactive communication that transform any two-party interactive protocol into a protocol that is robust to noise.

Recently, Haeupler (FOCS '14) showed that if an $\epsilon > 0$ fraction of transmissions are corrupted, adversarially or randomly, then it is possible to ... more >>>

Meena Mahajan, Raghavendra Rao B V, Karteek Sreenivasaiah

Polynomial Identity Testing (PIT) algorithms have focused on

polynomials computed either by small alternation-depth arithmetic circuits, or by read-restricted

formulas. Read-once polynomials (ROPs) are computed by read-once

formulas (ROFs) and are the simplest of read-restricted polynomials.

Building structures above these, we show the following:

\begin{enumerate}

\item A deterministic polynomial-time non-black-box ...
more >>>

Brett Hemenway, Rafail Ostrovsky

Injective one-way trapdoor functions are one of the most fundamental cryptographic primitives. In this work we give a novel construction of injective trapdoor functions based on oblivious transfer for long strings.

Our main result is to show that any 2-message statistically sender-private semi-honest oblivious transfer (OT) for ...
more >>>

Patrick Briest, Piotr Krysta

We investigate non-parametric unit-demand pricing problems, in which the goal is to find revenue maximizing prices for a set of products based on consumer profiles obtained, e.g., from an e-Commerce website. A consumer profile consists of a number of non-zero budgets and a ranking of all the products the consumer ... more >>>

Venkatesan Guruswami, Prasad Raghavendra, Rishi Saket, Yi Wu

The Unique Games conjecture (UGC) has emerged in recent years as the starting point for several optimal inapproximability results. While for none of these results a reverse reduction to Unique Games is known, the assumption of bijective projections in the Label Cover instance seems critical in these proofs. In this ... more >>>