TY - GEN

T1 - Approximation algorithms for the bottleneck asymmetric traveling salesman problem

AU - An, Hyung Chan

AU - Kleinberg, Robert D.

AU - Shmoys, David B.

PY - 2010

Y1 - 2010

N2 - We present the first nontrivial approximation algorithm for the bottleneck asymmetric traveling salesman problem. Given an asymmetric metric cost between n vertices, the problem is to find a Hamiltonian cycle that minimizes its bottleneck (or maximum-length edge) cost. We achieve an O(logn / loglogn) approximation performance guarantee by giving a novel algorithmic technique to shortcut Eulerian circuits while bounding the lengths of the shortcuts needed. This allows us to build on the recent result of Asadpour, Goemans, Ma̧dry, Oveis Gharan, and Saberi to obtain this guarantee. Furthermore, we show how our technique yields stronger approximation bounds in some cases, such as the bounded orientable genus case studied by Oveis Gharan and Saberi.

AB - We present the first nontrivial approximation algorithm for the bottleneck asymmetric traveling salesman problem. Given an asymmetric metric cost between n vertices, the problem is to find a Hamiltonian cycle that minimizes its bottleneck (or maximum-length edge) cost. We achieve an O(logn / loglogn) approximation performance guarantee by giving a novel algorithmic technique to shortcut Eulerian circuits while bounding the lengths of the shortcuts needed. This allows us to build on the recent result of Asadpour, Goemans, Ma̧dry, Oveis Gharan, and Saberi to obtain this guarantee. Furthermore, we show how our technique yields stronger approximation bounds in some cases, such as the bounded orientable genus case studied by Oveis Gharan and Saberi.

UR - http://www.scopus.com/inward/record.url?scp=78149317980&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78149317980&partnerID=8YFLogxK

U2 - 10.1007/978-3-642-15369-3_1

DO - 10.1007/978-3-642-15369-3_1

M3 - Conference contribution

AN - SCOPUS:78149317980

SN - 3642153682

SN - 9783642153686

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 1

EP - 11

BT - Approximation, Randomization, and Combinatorial Optimization

T2 - 13th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2010 and 14th International Workshop on Randomization and Computation, RANDOM 2010

Y2 - 1 September 2010 through 3 September 2010

ER -