A $c^k n$ 5-Approximation Algorithm for Treewidth
نویسندگان
چکیده
منابع مشابه
A ck n 5-Approximation Algorithm for Treewidth
We give an algorithm that for an input n-vertex graph G and integer k > 0, in time O(cn) either outputs that the treewidth of G is larger than k, or gives a tree decomposition of G of width at most 5k + 4. This is the first algorithm providing a constant factor approximation for treewidth which runs in time single-exponential in k and linear in n. Treewidth based computations are subroutines of...
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Finding triangulations of minimum treewidth for graphs is central to many problems in computer science. Real-world problems in artificial intelligence, VLSI design and databases are efficiently solvable if we have an efficient approximation algorithm for this problem. In this paper we present a simple approximation algorithm for finding triangulations of minimum treewidth. The algorithm produce...
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ژورنال
عنوان ژورنال: SIAM Journal on Computing
سال: 2016
ISSN: 0097-5397,1095-7111
DOI: 10.1137/130947374