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» k-Edge-Connectivity: Approximation and LP Relaxation
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CORR
2010
Springer
57views Education» more  CORR 2010»
14 years 9 months ago
k-Edge-Connectivity: Approximation and LP Relaxation
In the k-edge-connected spanning subgraph problem we are given a graph (V, E) and costs for each edge, and want to find a minimum-cost F E such that (V, F) is k-edge-connected. I...
David Pritchard
SODA
2003
ACM
121views Algorithms» more  SODA 2003»
14 years 11 months ago
An improved approximation algorithm for the partial latin square extension problem
Previous work on the partial Latin square extension (PLSE) problem resulted in a 2-approximation algorithm based on the LP relaxation of a three-dimensional assignment IP formulat...
Carla P. Gomes, Rommel G. Regis, David B. Shmoys
ICML
2009
IEEE
15 years 10 months ago
Polyhedral outer approximations with application to natural language parsing
Recent approaches to learning structured predictors often require approximate inference for tractability; yet its effects on the learned model are unclear. Meanwhile, most learnin...
André F. T. Martins, Noah A. Smith, Eric P....
IPL
2007
78views more  IPL 2007»
14 years 9 months ago
LP-based solution methods for the asymmetric TSP
We consider an LP relaxation for ATSP. We introduce concepts of high-value and high-flow cycles in LP basic solutions and show that the existence of this kind of cycles would lea...
Vardges Melkonian
TOC
2008
95views more  TOC 2008»
14 years 9 months ago
On the LP Relaxation of the Asymmetric Traveling Salesman Path Problem
: This is a comment on the article "An O(logn) Approximation Ratio for the Asymmetric Traveling Salesman Path Problem" by C. Chekuri and M. P
Viswanath Nagarajan