Steiner Tree 1.39-Approximation in Practice
Steiner Tree 1.39-Approximation in Practice
复制标题
Steiner 树 1 39 实践中的近似
DOI:
10.1007/978-3-319-14896-0_6
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
M. Chimani
中科院分区:
文献类型:
--
作者:
S. Beyer;M. Chimani
We consider the currently strongest Steiner tree approximation algorithm that has recently been published by Goemans, Olver, Rothvoß and Zenklusen (2012). It first solves a hypergraphic LP relaxation and then applies matroid theory to obtain an integral solution. The cost of the resulting Steiner tree is at most-times the cost of an optimal Steiner tree wheretends to zero as some parametertends to infinity. However, the degree of the polynomial running time depends on this constant, so only smallare tractable in practice.The algorithm has, to our knowledge, not been implemented and evaluated in practice before. We investigate different implementation aspects and parameter choices of the algorithm and compare tuned variants to an exact LP-based algorithm as well as to fast and simple-approximations.
登录
查看更多内容
DOI:
10.1007/978-3-642-25591-5_6
发表时间:
2011
期刊:
影响因子:
--
作者:
M. Chimani;M. Woste
通讯作者:
M. Woste
DOI:
10.1145/2213977.2214081
发表时间:
2011
期刊:
ArXiv
影响因子:
--
作者:
M. Goemans;Neil Olver;T. Rothvoss;R. Zenklusen
通讯作者:
R. Zenklusen
DOI:
10.18130/v3zg4b
发表时间:
1998
期刊:
Electron. Colloquium Comput. Complex.
影响因子:
--
作者:
Jeffrey S. Salowe;David M. Warme
通讯作者:
David M. Warme
DOI:
10.1016/s0167-5060(08)70655-1
发表时间:
1992
期刊:
Annals of discrete mathematics
影响因子:
--
作者:
A. Zelikovsky
通讯作者:
A. Zelikovsky