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» Approximate Tree Embedding Problem - An Algebraic Approach
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FOCS
2009
IEEE
15 years 8 months ago
Faster Generation of Random Spanning Trees
In this paper, we set forth a new algorithm for generating approximately uniformly random spanning trees in undirected graphs. We show how to sample from a distribution that is wi...
Jonathan A. Kelner, Aleksander Madry
CDC
2008
IEEE
113views Control Systems» more  CDC 2008»
15 years 8 months ago
Model reduction for a class of input-quantized systems in the max-plus algebra
Abstract— We present a systematic method for model reduction of a class of input-quantized systems in the max-plus algebra. We consider a generalization of the flow shop with ï¬...
Whitney Weyerman, Sean Warnick
137
Voted
SIAMJO
2008
144views more  SIAMJO 2008»
15 years 1 months ago
Embedded in the Shadow of the Separator
Eigenvectors to the second smallest eigenvalue of the Laplace matrix of a graph, also known as Fiedler vectors, are the basic ingredient in spectral graph partitioning heuristics....
Frank Göring, Christoph Helmberg, Markus Wapp...
106
Voted
SODA
2010
ACM
178views Algorithms» more  SODA 2010»
15 years 11 months ago
Tree Embeddings for Two-Edge-Connected Network Design
The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that conne...
Anupam Gupta, Ravishankar Krishnaswamy, R. Ravi
100
Voted
VLDB
2005
ACM
85views Database» more  VLDB 2005»
15 years 7 months ago
Pattern Tree Algebras: Sets or Sequences?
XML and XQuery semantics are very sensitive to the order of the produced output. Although pattern-tree based algebraic approaches are becoming more and more popular for evaluating...
Stelios Paparizos, H. V. Jagadish