On the integrality ratio for the asymmetric traveling salesman problem

被引：24

作者：

Charikar, Moses

Goemans, Michel X.

Karloff, Howard

机构：

[1] Princeton Univ, Dept Comp Sci, Princeton, NJ 08540 USA

[2] MIT, Dept Math, Cambridge, MA 02139 USA

[3] AT&T Labs Res, Florham Pk, NJ 07932 USA

来源：

MATHEMATICS OF OPERATIONS RESEARCH | 2006年 / 31卷 / 02期

关键词：

asymmetric traveling salesman problem; Held-Karp relaxation; integrality ratio; approximation algorithm; ATSP;

D O I：

10.1287/moor.1060.0191

中图分类号：

C93 [管理学]; O22 [运筹学];

学科分类号：

070105 ; 12 ; 1201 ; 1202 ; 120202 ;

摘要：

We improve the lower bound on the integrality ratio of the Held-Karp bound for asymmetric TSP with triangle inequality from 4/3 to 2.

引用

页码：245 / 252

页数：8

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