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arXiv 1802.04859cs.CC
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免分发Junta测试

Distribution-free Junta Testing

Xi Chen, Zhengyang Liu, Rocco A. Servedio, Ying Sheng, Jinyu Xie

摘要:

本文研究了在分布无关性质测试模型中测试未知$n$ -变量布尔函数是否为$k$ -junta的问题,其中函数之间的距离是关于$\{0,1\}^n$上任意未知的概率分布来测量的.我们的第一个主要结果是,分布自由$k$ -军测试可以执行,单侧错误,由自适应算法,使用$\tilde{O}(k^2)/ε$查询(独立于$n$)。补充这一点,我们的第二个主要结果是一个下界,表明任何非自适应分布的自由$k$ -junta测试算法必须使$Ω(2^{k/3})$查询,甚至测试的准确性$ε=1/3$。这些界限建立,而非自适应$k$ -junta测试的最佳查询复杂度是$2^{Θ(k)}$,对于自适应测试,它是$\text{poly}(k)$,从而表明自适应性提供了测试junta的分布自由查询复杂度的指数级改进。

英文摘要:

We study the problem of testing whether an unknown $n$-variable Boolean function is a $k$-junta in the distribution-free property testing model, where the distance between functions is measured with respect to an arbitrary and unknown probability distribution over $\{0,1\}^n$. Our first main result is that distribution-free $k$-junta testing can be performed, with one-sided error, by an adaptive algorithm that uses $\tilde{O}(k^2)/ε$ queries (independent of $n$). Complementing this, our second main result is a lower bound showing that any non-adaptive distribution-free $k$-junta testing algorithm must make $Ω(2^{k/3})$ queries even to test to accuracy $ε=1/3$. These bounds establish that while the optimal query complexity of non-adaptive $k$-junta testing is $2^{Θ(k)}$, for adaptive testing it is $\text{poly}(k)$, and thus show that adaptivity provides an exponential improvement in the distribution-free query complexity of testing juntas.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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