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JCT
2006
100views more  JCT 2006»
13 years 8 months ago
Approximating clique-width and branch-width
We construct a polynomial-time algorithm to approximate the branch-width of certain symmetric submodular functions, and give two applications. The first is to graph "clique-wi...
Sang-il Oum, Paul D. Seymour
SAT
2009
Springer
82views Hardware» more  SAT 2009»
14 years 3 months ago
Generalizing Core-Guided Max-SAT
Recent work has shown the value of using unsatisfiable cores to guide maximum satisfiability algorithms (Max-SAT) running on industrial instances [5,9,10,11]. We take this concep...
Mark H. Liffiton, Karem A. Sakallah
LAWEB
2004
IEEE
13 years 10 months ago
Integrating Semantic Concept Similarity in Model-Based Web Applications
Model-based design methods, and model-based architectures, have gained adoption in authoring applications for the WWW. This is further reinforced by the increasing visibility of t...
Cristiano Rocha, Daniel Schwabe, Marcus Poggi de A...
COLT
2005
Springer
14 years 2 months ago
General Polynomial Time Decomposition Algorithms
We present a general decomposition algorithm that is uniformly applicable to every (suitably normalized) instance of Convex Quadratic Optimization and efficiently approaches an o...
Nikolas List, Hans-Ulrich Simon
JCT
2008
81views more  JCT 2008»
13 years 8 months ago
Algebraic characterization of uniquely vertex colorable graphs
Abstract. The study of graph vertex colorability from an algebraic perspective has introduced novel techniques and algorithms into the field. For instance, it is known that k-color...
Christopher J. Hillar, Troels Windfeldt