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IJON
2008
92views more  IJON 2008»
15 years 6 months ago
Nonnegative matrix factorization with quadratic programming
Nonnegative Matrix Factorization (NMF) solves the following problem: find such nonnegative matrices A RI
Rafal Zdunek, Andrzej Cichocki
CORR
1998
Springer
126views Education» more  CORR 1998»
15 years 6 months ago
Stable models and an alternative logic programming paradigm
In this paper we reexamine the place and role of stable model semantics in logic programming and contrast it with a least Herbrand model approach to Horn programs. We demonstrate ...
Victor W. Marek, Miroslaw Truszczynski
CPAIOR
2009
Springer
16 years 28 days ago
The Polytope of Context-Free Grammar Constraints
Context-free grammar constraints enforce that a sequence of variables forms a word in a language defined by a context-free grammar. The constraint has received a lot of attention ...
Gilles Pesant, Claude-Guy Quimper, Louis-Martin Ro...
SARA
2007
Springer
16 years 14 days ago
Reformulating Constraint Satisfaction Problems to Improve Scalability
Constraint Programming is a powerful approach for modeling and solving many combinatorial problems, scalability, however, remains an issue in . Abstraction and reformulation techni...
Kenneth M. Bayer, Martin Michalowski, Berthe Y. Ch...
ESOP
2004
Springer
15 years 11 months ago
From Constraints to Finite Automata to Filtering Algorithms
Abstract. We introduce an approach to designing filtering algorithms by derivation from finite automata operating on constraint signatures. We illustrate this approach in two cas...
Mats Carlsson, Nicolas Beldiceanu