Small sample spaces cannot fool low degree polynomials

Noga Alon; Ido Ben-Eliezer; Michael Krivelevich

doi:10.1007/978-3-540-85363-3_22

Small sample spaces cannot fool low degree polynomials

Noga Alon
, Ido Ben-Eliezer
, Michael Krivelevich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Scopus citations

Abstract

A distribution D on a set S ⊂ ℤ_p^N ε-fools polynomials of degree at most d in N variables over ℤ_p if for any such polynomial P, the distribution of P(x) when x is chosen according to D differs from the distribution when x is chosen uniformly by at most ε in the ℓ₁ norm. Distributions of this type generalize the notion of ε-biased spaces and have been studied in several recent papers. We establish tight bounds on the minimum possible size of the support S of such a distribution, showing that any such S satisfies |S| ≥ c₁ · ((N/2d^d)· log p/ε² log (1/ε) + p )· This is nearly optimal as there is such an S of size at most c₂· (3N/d)^d· log p + p/ε².

Original language	English
Title of host publication	Approximation, Randomization and Combinatorial Optimization
Subtitle of host publication	Algorithms and Techniques - 11th International Workshop, APPROX 2008 and 12th International Workshop, RANDOM 2008, Proceedings
Pages	266-275
Number of pages	10
DOIs	https://doi.org/10.1007/978-3-540-85363-3_22
State	Published - 22 Sep 2008
Externally published	Yes
Event	11th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2008 and 12th International Workshop on Randomization and Computation, RANDOM 2008 - Boston, MA, United States Duration: 25 Aug 2008 → 27 Aug 2008

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	5171 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	11th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2008 and 12th International Workshop on Randomization and Computation, RANDOM 2008
Country/Territory	United States
City	Boston, MA
Period	25/08/08 → 27/08/08

ASJC Scopus subject areas

Theoretical Computer Science
General Computer Science

Access to Document

10.1007/978-3-540-85363-3_22

Cite this

Alon, N., Ben-Eliezer, I., & Krivelevich, M. (2008). Small sample spaces cannot fool low degree polynomials. In Approximation, Randomization and Combinatorial Optimization: Algorithms and Techniques - 11th International Workshop, APPROX 2008 and 12th International Workshop, RANDOM 2008, Proceedings (pp. 266-275). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5171 LNCS). https://doi.org/10.1007/978-3-540-85363-3_22

Alon, Noga ; Ben-Eliezer, Ido ; Krivelevich, Michael. / Small sample spaces cannot fool low degree polynomials. Approximation, Randomization and Combinatorial Optimization: Algorithms and Techniques - 11th International Workshop, APPROX 2008 and 12th International Workshop, RANDOM 2008, Proceedings. 2008. pp. 266-275 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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abstract = "A distribution D on a set S ⊂ ℤpN ε-fools polynomials of degree at most d in N variables over ℤp if for any such polynomial P, the distribution of P(x) when x is chosen according to D differs from the distribution when x is chosen uniformly by at most ε in the ℓ1 norm. Distributions of this type generalize the notion of ε-biased spaces and have been studied in several recent papers. We establish tight bounds on the minimum possible size of the support S of such a distribution, showing that any such S satisfies |S| ≥ c1 · ((N/2dd)· log p/ε2 log (1/ε) + p )· This is nearly optimal as there is such an S of size at most c2· (3N/d)d· log p + p/ε2.",

author = "Noga Alon and Ido Ben-Eliezer and Michael Krivelevich",

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Alon, N, Ben-Eliezer, I & Krivelevich, M 2008, Small sample spaces cannot fool low degree polynomials. in Approximation, Randomization and Combinatorial Optimization: Algorithms and Techniques - 11th International Workshop, APPROX 2008 and 12th International Workshop, RANDOM 2008, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 5171 LNCS, pp. 266-275, 11th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2008 and 12th International Workshop on Randomization and Computation, RANDOM 2008, Boston, MA, United States, 25/08/08. https://doi.org/10.1007/978-3-540-85363-3_22

Small sample spaces cannot fool low degree polynomials. / Alon, Noga; Ben-Eliezer, Ido; Krivelevich, Michael.
Approximation, Randomization and Combinatorial Optimization: Algorithms and Techniques - 11th International Workshop, APPROX 2008 and 12th International Workshop, RANDOM 2008, Proceedings. 2008. p. 266-275 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5171 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Alon N, Ben-Eliezer I, Krivelevich M. Small sample spaces cannot fool low degree polynomials. In Approximation, Randomization and Combinatorial Optimization: Algorithms and Techniques - 11th International Workshop, APPROX 2008 and 12th International Workshop, RANDOM 2008, Proceedings. 2008. p. 266-275. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/978-3-540-85363-3_22

Small sample spaces cannot fool low degree polynomials

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