An Algebraic Theory of Complexity for Discrete Optimization
An Algebraic Theory of Complexity for Discrete Optimization
复制标题
离散优化的复杂性代数理论
DOI:
10.1137/130906398
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发表时间:
2013
影响因子:
1.6
通讯作者:
Cohen D
中科院分区:
文献类型:
--
作者:
Cohen D
Discrete optimization problems arise in many different areas and are studied under many different names. In many such problems the quantity to be optimized can be expressed as a sum of functions of a restricted form. Here we present a unifying theory of complexity for problems of this kind. We show that the complexity of a finite-domain discrete optimization problem is determined by certain algebraic properties of the objective function, which we callweighted polymorphisms. We define a Galois connection between sets of rational-valued functions and sets of weighted polymorphisms and show how the closed sets of this Galois connection can be characterized. These results provide a new approach to studying the complexity of discrete optimization. We use this approach to identify certain maximal tractable subproblems of the general problem and hence derive a complete classification of complexity for the Boolean case.
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DOI:
10.1016/j.artint.2011.02.003
发表时间:
2010-08
期刊:
Artif. Intell.
影响因子:
--
作者:
Martin C. Cooper;Stanislav Živný
通讯作者:
Martin C. Cooper;Stanislav Živný
DOI:
--
发表时间:
1995
期刊:
Journal of computer and system sciences (Print)
影响因子:
--
作者:
N. Creignou
通讯作者:
N. Creignou
DOI:
--
发表时间:
2001
期刊:
Symposium on the Theory of Computing
影响因子:
--
作者:
A. Bulatov;A. Krokhin;P. Jeavons
通讯作者:
P. Jeavons
DOI:
--
发表时间:
1963
期刊:
影响因子:
--
作者:
A. Pixley
通讯作者:
A. Pixley
影响因子:
32.8
作者:
Wainwright, Martin J.;Jordan, Michael I.
通讯作者:
Jordan, Michael I.