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AAAI
2004
13 years 11 months ago
Towards Efficient Sampling: Exploiting Random Walk Strategies
From a computational perspective, there is a close connection between various probabilistic reasoning tasks and the problem of counting or sampling satisfying assignments of a pro...
Wei Wei, Jordan Erenrich, Bart Selman
COMBINATORICS
2000
89views more  COMBINATORICS 2000»
13 years 10 months ago
A Note on the Non-Colorability Threshold of a Random Graph
In this paper we consider the problem of establishing a value r0 such that almost all random graphs with n vertices and rn edges, r > r0, are asymptotically not 3-colorable. In...
Alexis C. Kaporis, Lefteris M. Kirousis, Yannis C....
FSTTCS
2009
Springer
14 years 4 months ago
On Nondeterministic Unranked Tree Automata with Sibling Constraints
ABSTRACT. We continue the study of bottom-up unranked tree automata with equality and disequality constraints between direct subtrees. In particular, we show that the emptiness pro...
Christof Löding, Karianto Wong
CSCLP
2004
Springer
14 years 3 months ago
New Structural Decomposition Techniques for Constraint Satisfaction Problems
We propose four new structural decomposition techniques for Constraint Satisfaction Problems. We compare these four techniques both theoretically and experimentally with hinge deco...
Yaling Zheng, Berthe Y. Choueiry
ICDAR
2005
IEEE
14 years 3 months ago
Learning Diagram Parts with Hidden Random Fields
Many diagrams contain compound objects composed of parts. We propose a recognition framework that learns parts in an unsupervised way, and requires training labels only for compou...
Martin Szummer