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COLT
2008
Springer
13 years 6 months ago
Time Varying Undirected Graphs
Undirected graphs are often used to describe high dimensional distributions. Under sparsity conditions, the graph can be estimated using 1 penalization methods. However, current m...
Shuheng Zhou, John D. Lafferty, Larry A. Wasserman
COMBINATORICS
2002
89views more  COMBINATORICS 2002»
13 years 4 months ago
Generating a Random Sink-free Orientation in Quadratic Time
A sink-free orientation of a finite undirected graph is a choice of orientation
Henry Cohn, Robin Pemantle, James Gary Propp
SIAMCOMP
2008
77views more  SIAMCOMP 2008»
13 years 4 months ago
A Linear-Time Approximation Scheme for TSP in Undirected Planar Graphs with Edge-Weights
We give an algorithm requiring O(c1/2 n) time to find an -optimal traveling salesman tour in the shortest-path metric defined by an undirected planar graph with nonnegative edgele...
Philip N. Klein
FOCS
1990
IEEE
13 years 8 months ago
Time-Space Tradeoffs for Undirected Graph Traversal
Paul Beame, Allan Borodin, Prabhakar Raghavan, Wal...
FSTTCS
2007
Springer
13 years 11 months ago
Undirected Graphs of Entanglement 2
Entanglement is a complexity measure of directed graphs that origins in fixed point theory. This measure has shown its use in designing efficient algorithms to verify logical prop...
Walid Belkhir, Luigi Santocanale