An Asymptotically Tight Bound on the Number of Relevant Variables in a Bounded Degree Boolean function
An Asymptotically Tight Bound on the Number of Relevant Variables in a Bounded Degree Boolean function
复制标题
有界度布尔函数中相关变量数量的渐近紧界
DOI:
10.1007/s00493-019-4136-7
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发表时间:
2020
期刊:
影响因子:
1.1
通讯作者:
Saks, Michael
中科院分区:
文献类型:
--
作者:
Chiarelli, John;Hatami, Pooya;Saks, Michael
We prove that there is a constantC≤ 6.614 such that every Boolean function of degree at mostd(as a polynomial over ℝ) is aC·2d-junta, i.e., it depends on at mostC·2dvariables. This improves thed·2d-1upper bound of Nisan and Szegedy [Computational Complexity 4 (1994)].The bound ofC·2dis tight up to the constantC, since a read-once decision tree of depthddepends on all 2d- 1 variables. We slightly improve this lower bound by constructing, for each positive integerd, a function of degreedwith 3·2d-1- 2 relevant variables. A similar construction was independently observed by Shinkar and Tal.
影响因子:
1
作者:
Pooya Hatami;R. Kulkarni;D. Pankratov
通讯作者:
D. Pankratov
DOI:
10.1145/2422436.2422485
发表时间:
2013
期刊:
Electron. Colloquium Comput. Complex.
影响因子:
--
作者:
Avishay Tal
通讯作者:
Avishay Tal
影响因子:
0.8
作者:
Yuval Filmus;F. Ihringer
通讯作者:
F. Ihringer