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FUIN
2010
112views more  FUIN 2010»
14 years 10 months ago
An Empirical Study of QBF Encodings: from Treewidth Estimation to Useful Preprocessing
From an empirical point of view, the hardness of quantified Boolean formulas (QBFs), can be characterized by the (in)ability of current state-of-the-art QBF solvers to decide abo...
Luca Pulina, Armando Tacchella
MP
2010
99views more  MP 2010»
14 years 10 months ago
Separation, dimension, and facet algorithms for node flow polyhedra
Abstract; Dedicated to Alan J. Hoffman Ball et al. propose a graph model for material compatibility constraints for products such as PCs made from components, where each componen...
Maren Martens, S. Thomas McCormick, Maurice Queyra...
CORR
2010
Springer
135views Education» more  CORR 2010»
14 years 10 months ago
The Dichotomy of List Homomorphisms for Digraphs
The Dichotomy Conjecture for Constraint Satisfaction Problems has been verified for conservative problems (or, equivalently, for list homomorphism problems) by Andrei Bulatov. An ...
Pavol Hell, Arash Rafiey
ICPR
2008
IEEE
16 years 1 months ago
Fast and precise kinematic skeleton extraction of 3D dynamic meshes
Shape skeleton extraction is a fundamental preprocessing task in shape-based pattern recognition. This paper presents a new algorithm for fast and precise extraction of kinematic ...
Jean-Philippe Vandeborre, Julien Tierny, Mohamed D...
MODELS
2009
Springer
15 years 6 months ago
Business Process Models as a Showcase for Syntax-Based Assistance in Diagram Editors
Recently, a generic approach for syntax-based user assistance in diagram editors has been proposed that requires the syntax of the visual language to be defined by a graph grammar...
Steffen Mazanek, Mark Minas