Symmetric Promise Constraint Satisfaction Problems: Beyond the Boolean Case

Symmetric Promise Constraint Satisfaction Problems: Beyond the Boolean Case
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对称承诺约束满足问题:超越布尔情况

DOI:
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发表时间:
2020
期刊:
Symposium on Theoretical Aspects of Computer Science
影响因子:
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通讯作者:
Kevin M. Berg
Kevin M. Berg
中科院分区:
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文献类型:
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作者:
L. Barto;Diego Battistelli;Kevin M. Berg

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承诺约束满足问题(Promise Constraint Satisfaction Problem,PCSP)是约束满足问题(Constraint Satisfaction Problem,CSP)的一个推广。我们调查的计算复杂性的一类PCSP超出了大多数研究的情况下,可满足性和图着色问题的近似变量。我们给出了一类PCSP的几乎完全分类的形式:给定一个3-一致超图,有一个容许的2-染色,找到一个容许的3-染色,其中容许性是由三元对称关系。这类PCSP中唯一一个复杂性在本书中没有讨论的是一个自然超图着色问题,其中的容许性由以下关系给出:“如果两种颜色相等,则剩下的一种颜色更高。"
The Promise Constraint Satisfaction Problem (PCSP) is a recently introduced vast generalization of the Constraint Satisfaction Problem (CSP). We investigate the computational complexity of a class of PCSPs beyond the most studied cases - approximation variants of satisfiability and graph coloring problems. We give an almost complete classification for the class of PCSPs of the form: given a 3-uniform hypergraph that has an admissible 2-coloring, find an admissible 3-coloring, where admissibility is given by a ternary symmetric relation. The only PCSP of this sort whose complexity is left open in this work is a natural hypergraph coloring problem, where admissibility is given by the relation "if two colors are equal, then the remaining one is higher."
DOI: 10.1145/3313276.3316300
发表时间: 2019
期刊: --
影响因子: --
作者:
Bulín J
通讯作者: Bulín J
结合基本线性规划和仿射松弛来解决承诺约束满足问题的威力
DOI: 10.1137/20m1312745
发表时间: 2020
影响因子: 1.6
作者:
Brakensiek, Joshua;Guruswami, Venkatesan;Wrochna, Marcin;Živný, Stanislav
通讯作者: Živný, Stanislav