Improved Testing Algorithms for Monotonicity
Improved Testing Algorithms for Monotonicity
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改进的单调性测试算法
DOI:
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发表时间:
1999
期刊:
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通讯作者:
Alex Samorodnitsky
中科院分区:
文献类型:
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作者:
Y. Dodis;Oded Goldreich;E. Lehman;Sofya Raskhodnikova;D. Ron;Alex Samorodnitsky
We present improved algorithms for testing monotonicity of functions. Namely, given the ability to query an unknown function f: Σ n ↦ Ξ, where Σ and Ξ are finite ordered sets, the test always accepts a monotone f, and rejects f with high probability if it is e-far from being monotone (i.e., every monotone function differs from f on more than an e fraction of the domain). For any e > 0, the query complexity of the test is O((n/e) · log ∣Σ ∣ · log ∣Ξ∣). The previous best known bound was \(\tilde{O}((n^2/\epsilon) \cdot \vert\Sigma\vert^2 \cdot \vert\Xi\vert)\).