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STACS
2007
Springer
14 years 3 months ago
Computing Representations of Matroids of Bounded Branch-Width
For every k ≥ 1 and two finite fields F and F , we design a polynomial-time algorithm that given a matroid M of branch-width at most k represented over F decides whether M is ...
Daniel Král
ENTCS
2008
106views more  ENTCS 2008»
13 years 9 months ago
Computability and Representations of the Zero Set
In this note we give a new representation for closed sets under which the robust zero set of a function is computable. We call this representation the component cover representati...
Pieter Collins
HYBRID
1999
Springer
14 years 1 months ago
Orthogonal Polyhedra: Representation and Computation
Abstract. In this paper we investigate orthogonal polyhedra, i.e. polyhedra which are finite unions of full-dimensional hyper-rectangles. We define representation schemes for the...
Olivier Bournez, Oded Maler, Amir Pnueli
COSIT
1999
Springer
148views GIS» more  COSIT 1999»
14 years 1 months ago
Representation and Reasoning about Shapes: Cognitive and Computational Studies in Visual Reasoning in Design
Abstract. This paper describes some recent cognitively-based and computationally-based research on representing and reasoning about shapes. The cognitive studies are based on proto...
John S. Gero
FOCS
2010
IEEE
13 years 7 months ago
Replacement Paths via Fast Matrix Multiplication
Let G be a directed edge-weighted graph and let P be a shortest path from s to t in G. The replacement paths problem asks to compute, for every edge e on P, the shortest s-to-t pat...
Oren Weimann, Raphael Yuster