On the Integrality Ratio for the Asymmetric Traveling Salesman Problem

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.

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Veröffentlicht in:	Mathematics of operations research 2006-05, Vol.31 (2), p.245-252
Hauptverfasser:	Charikar, Moses, Goemans, Michel X, Karloff, Howard
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Analysis approximation algorithm Approximation algorithms Approximation theory Approximations asymmetric traveling salesman problem ATSP Combinatorial optimization Held-Karp relaxation Heuristics Integral equations Integrality integrality ratio Linear programming Mathematical integrals Minimization of cost Optimization algorithms Ratios Studies Traveling salesman problem Vertices
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Beschreibung
Zusammenfassung:	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.
ISSN:	0364-765X 1526-5471
DOI:	10.1287/moor.1060.0191