Sciweavers

840 search results - page 9 / 168
» Inapproximability of Combinatorial Optimization Problems
Sort
View
ORL
1998
137views more  ORL 1998»
13 years 9 months ago
Calculation of stability radii for combinatorial optimization problems
We present algorithms to calculate the stability radius of optimal or approximate solutions of binary programming problems with a min sum or min max objective function. Our algori...
Nilotpal Chakravarti, Albert P. M. Wagelmans
FUIN
2010
109views more  FUIN 2010»
13 years 8 months ago
Combinatorial Optimization Solutions for the Maximum Quartet Consistency Problem
Given a set of taxa S and a complete set of quartet topologies Q over S, the problem of determining a phylogeny that satisfies the maximum number of topologies is called the Maxi...
António Morgado, João Marques-Silva
WWW
2008
ACM
14 years 10 months ago
A combinatorial allocation mechanism with penalties for banner advertising
Most current banner advertising is sold through negotiation thereby incurring large transaction costs and possibly suboptimal allocations. We propose a new automated system for se...
Uriel Feige, Nicole Immorlica, Vahab S. Mirrokni, ...
EOR
2007
117views more  EOR 2007»
13 years 9 months ago
Approximation of min-max and min-max regret versions of some combinatorial optimization problems
This paper investigates, for the first time in the literature, the approximation of minmax (regret) versions of classical problems like shortest path, minimum spanning tree, and ...
Hassene Aissi, Cristina Bazgan, Daniel Vanderpoote...
SODA
2008
ACM
97views Algorithms» more  SODA 2008»
13 years 11 months ago
Stochastic analyses for online combinatorial optimization problems
In this paper, we study online algorithms when the input is not chosen adversarially, but consists of draws from some given probability distribution. While this model has been stu...
Naveen Garg, Anupam Gupta, Stefano Leonardi, Piotr...