On the approximation resistance of balanced linear threshold functions

On the approximation resistance of balanced linear threshold functions
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关于平衡线性阈值函数的逼近电阻

DOI:
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发表时间:
2018
期刊:
Symposium on the Theory of Computing
影响因子:
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通讯作者:
Aaron Potechin
Aaron Potechin
中科院分区:
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文献类型:
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作者:
Aaron Potechin

文献摘要

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在本文中,我们表明存在一个平衡的线性阈值功能(LTF),这是很难近似的独特游戏,反驳了Austrin,Benabbas和Magen的概念。 ((k -4)x1 + ∑i = 2kxi)对于足够大的k而言是近似的。
In this paper, we show that there exists a balanced linear threshold function (LTF) which is unique games hard to approximate, refuting a conjecture of Austrin, Benabbas, and Magen. We also show that the almost monarchy predicate P(x) = sign((k−4)x1 + ∑i=2kxi) is approximable for sufficiently large k.