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» Approximating Graphic TSP by Matchings
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CORR
2011
Springer
256views Education» more  CORR 2011»
13 years 5 months ago
Approximating Graphic TSP by Matchings
We present a framework for approximating the metric TSP based on a novel use of matchings. Traditionally, matchings have been used to add edges in order to make a given graph Eule...
Tobias Mömke, Ola Svensson
CORR
2012
Springer
224views Education» more  CORR 2012»
12 years 6 months ago
On Approximation Lower Bounds for TSP with Bounded Metrics
We develop a new method for proving explicit approximation lower bounds for TSP problems with bounded metrics improving on the best up to now known bounds. They almost match the b...
Marek Karpinski, Richard Schmied
TSP
2010
13 years 5 months ago
Learning graphical models for hypothesis testing and classification
Sparse graphical models have proven to be a flexible class of multivariate probability models for approximating high-dimensional distributions. In this paper, we propose techniques...
Vincent Y. F. Tan, Sujay Sanghavi, John W. Fisher ...
TSP
2008
124views more  TSP 2008»
13 years 10 months ago
Dictionary Preconditioning for Greedy Algorithms
This article introduces the concept of sensing dictionaries. It presents an alteration of greedy algorithms like thresholding or (Orthogonal) Matching Pursuit which improves their...
Karin Schnass, Pierre Vandergheynst
CVPR
2004
IEEE
15 years 27 days ago
Graphical Models for Graph Matching
This paper explores a formulation for attributed graph matching as an inference problem over a hidden Markov Random Field. We approximate the fully connected model with simpler mo...
Dante Augusto Couto Barone, Terry Caelli, Tib&eacu...