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ICCS
2009
Springer
16 years 1 months ago
Distinguishing Answers in Conceptual Graph Knowledge Bases
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...
Nicolas Moreau, Michel Leclère, Madalina Cr...
CDC
2008
IEEE
113views Control Systems» more  CDC 2008»
16 years 1 months ago
Model reduction for a class of input-quantized systems in the max-plus algebra
Abstract— We present a systematic method for model reduction of a class of input-quantized systems in the max-plus algebra. We consider a generalization of the flow shop with ï¬...
Whitney Weyerman, Sean Warnick
FOCS
1995
IEEE
15 years 10 months ago
Disjoint Paths in Densely Embedded Graphs
We consider the following maximum disjoint paths problem (mdpp). We are given a large network, and pairs of nodes that wish to communicate over paths through the network — the g...
Jon M. Kleinberg, Éva Tardos
WALCOM
2008
IEEE
82views Algorithms» more  WALCOM 2008»
15 years 8 months ago
Exact Algorithms for Maximum Acyclic Subgraph on a Superclass of Cubic Graphs
Abstract. Finding a maximum acyclic subgraph is on the list of problems that seem to be hard to tackle from a parameterized perspective. We develop two quite efficient algorithms (...
Henning Fernau, Daniel Raible
ESA
2010
Springer
273views Algorithms» more  ESA 2010»
15 years 8 months ago
Minimum Vertex Cover in Rectangle Graphs
We consider the Minimum Vertex Cover problem in intersection graphs of axis-parallel rectangles on the plane. We present two algorithms: The first is an EPTAS for non-crossing rect...
Reuven Bar-Yehuda, Danny Hermelin, Dror Rawitz