Tractable Symmetry Breaking Using Restricted Search Trees
Tractable Symmetry Breaking Using Restricted Search Trees
复制标题
使用受限搜索树实现易于处理的对称性破缺
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
S. Linton
中科院分区:
文献类型:
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作者:
C. Roney;Ian P. Gent;T. Kelsey;S. Linton
We present a new conceptual abstraction in symmetry breaking - the GE-tree. The construction and traversal of a GE-tree breaks all symmetries in any constraint satisfaction or similar problem. We give a polynomial-time algorithm for this construction in the case of CSPs with arbitrary value symmetries. We have implemented this technique, and supply experimental evidence of its practical effectiveness.