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ESA
1998
Springer
145views Algorithms» more  ESA 1998»
15 years 7 months 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...
EOR
2008
107views more  EOR 2008»
15 years 3 months ago
Fast heuristics for the Steiner tree problem with revenues, budget and hop constraints
This article describes and compares three heuristics for a variant of the Steiner tree problem with revenues, which includes budget and hop constraints. First, a greedy method whi...
Alysson M. Costa, Jean-François Cordeau, Gi...
JCSS
2006
89views more  JCSS 2006»
15 years 3 months ago
Ramsey-type theorems for metric spaces with applications to online problems
A nearly logarithmic lower bound on the randomized competitive ratio for the metrical task systems problem is presented. This implies a similar lower bound for the extensively stu...
Yair Bartal, Béla Bollobás, Manor Me...
MP
2006
93views more  MP 2006»
15 years 3 months ago
Computation of Error Bounds for P-matrix Linear Complementarity Problems
Abstract We give new error bounds for the linear complementarity problem where the involved matrix is a P-matrix. Computation of rigorous error bounds can be turned into a P-matrix...
Xiaojun Chen, Shuhuang Xiang
ORL
2008
96views more  ORL 2008»
15 years 3 months ago
A power penalty method for linear complementarity problems
In this paper we propose a power penalty approach to linear complementarity problems (LCP) in a finite dimensional space. This approach is based on approximating the LCP by a nonl...
Song Wang, Xiaoqi Yang