57 search results - page 8 / 12 » Approximating Sparsest Cut in Graphs of Bounded Treewidth |
JMLR
2012
11 years 10 months ago
2012
Graph partitioning algorithms play a central role in data analysis and machine learning. Most useful graph partitioning criteria correspond to optimizing a ratio between the cut a...
CORR
2011
Springer
13 years 2 months ago
2011
Springer
Quadratic Programming (QP) is the well-studied problem of maximizing over {−1, 1} values the quadratic form i=j aijxixj. QP captures many known combinatorial optimization proble...
ICALP
2011
Springer
12 years 11 months ago
2011
Springer
We present an O( √ n log n)-approximation algorithm for the problem of finding the sparsest spanner of a given directed graph G on n vertices. A spanner of a graph is a sparse ...
APPROX
2005
Springer
14 years 1 months ago
2005
Springer
A caterpillar is a tree in which all vertices of degree three or more lie on one path, called the backbone. We present a polynomial time algorithm that produces a linear arrangeme...
COMPGEOM
2009
ACM
14 years 2 months ago
2009
ACM
It was shown in [11] that any orientable graph of genus g can be probabilistically embedded into a graph of genus g − 1 with constant distortion. Removing handles one by one giv...