Sciweavers

242 search results - page 6 / 49
» Approximation Algorithms for Multi-Criteria Traveling Salesm...
Sort
View
ESA
2003
Springer
189views Algorithms» more  ESA 2003»
14 years 1 months ago
On the Complexity of Approximating TSP with Neighborhoods and Related Problems
We prove that various geometric covering problems, related to the Travelling Salesman Problem cannot be efficiently approximated to within any constant factor unless P = NP. This ...
Shmuel Safra, Oded Schwartz
APPROX
2008
Springer
124views Algorithms» more  APPROX 2008»
13 years 10 months ago
Deterministic 7/8-Approximation for the Metric Maximum TSP
We present the first 7/8-approximation algorithm for the maximum traveling salesman problem with triangle inequality. Our algorithm is deterministic. This improves over both the r...
Lukasz Kowalik, Marcin Mucha
ESA
1998
Springer
145views Algorithms» more  ESA 1998»
14 years 23 days ago
Moving-Target TSP and Related Problems
Previous literature on the Traveling Salesman Problem (TSP) assumed that the sites to be visited are stationary. Motivated by practical applications, we introduce a time-dependent ...
Christopher S. Helvig, Gabriel Robins, Alexander Z...
PPSN
2010
Springer
13 years 7 months ago
A Hybrid Genetic Algorithm for the Traveling Salesman Problem Using Generalized Partition Crossover
We present a hybrid Genetic Algorithm that incorporates the Generalized Partition Crossover (GPX) operator to produce an algorithm that is competitive with the state of the art for...
Darrell Whitley, Doug Hains, Adele E. Howe
MP
2010
145views more  MP 2010»
13 years 7 months ago
The traveling salesman problem with pickup and delivery: polyhedral results and a branch-and-cut algorithm
The Traveling Salesman Problem with Pickup and Delivery (TSPPD) is defined on a graph containing pickup and delivery vertices between which there exists a one-toone relationship. ...
Irina Dumitrescu, Stefan Ropke, Jean-Franço...