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» On Skolemization in constructive theories
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ICDT
2010
ACM
137views Database» more  ICDT 2010»
14 years 11 months ago
A Greedy Algorithm for Constructing a Low-Width Generalized Hypertree Decomposition
We propose a greedy algorithm which, given a hypergraph H and a positive integer k, produces a hypertree decomposition of width less than or equal to 3k −1, or determines that H...
Kaoru Katayama, Tatsuro Okawara, Yuka Itou
COMBINATORICS
2000
74views more  COMBINATORICS 2000»
14 years 11 months ago
Frequency Squares and Affine Designs
The known methods for constructing complete sets of mutually orthogonal frequency squares all yield one of two parameter sets. We show that almost all these constructions can be d...
Vassili C. Mavron
ICCS
2004
Springer
15 years 5 months ago
Graphical and Computational Representation of Groups
An important part of the computer science is focused on the links that can be established between group theory and graph theory. Cayley graphs can establish such a link but meet so...
Alain Bretto, Luc Gillibert
AAAI
1994
15 years 1 months ago
Soundness and Completeness of a Logic Programming Approach to Default Logic
We present a method of representing some classes of default theories as normal logic programs. The main point is that the standard semantics (i.e. SLDNF-resolution) computes answe...
Grigoris Antoniou, Elmar Langetepe
SYNTHESE
2011
85views more  SYNTHESE 2011»
14 years 6 months ago
Modeling reality
: My aim in this paper is to articulate an account of scientific modeling that reconciles pluralism about modeling with a modest form of scientific realism. The central claim of th...
Christopher Pincock