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ICALP
2010
Springer
15 years 11 months ago
On the Inapproximability of Vertex Cover on k-Partite k-Uniform Hypergraphs
Computing a minimum vertex cover in graphs and hypergraphs is a well-studied optimizaton problem. While intractable in general, it is well known that on bipartite graphs, vertex c...
Venkatesan Guruswami, Rishi Saket
ACSC
2010
IEEE
15 years 1 months ago
Efficient contour line labelling for terrain modelling
Terrains are an essential part of outdoor environments. Terrain models are important for computer games and applications in architecture, urban design and archaeology. A popular a...
Xin Xie, Burkhard Wünsche
COCO
2010
Springer
186views Algorithms» more  COCO 2010»
15 years 9 months ago
Derandomized Parallel Repetition of Structured PCPs
A PCP is a proof system for NP in which the proof can be checked by a probabilistic verifier. The verifier is only allowed to read a very small portion of the proof, and in return ...
Irit Dinur, Or Meir
IJCAI
2003
15 years 7 months ago
A lookahead strategy for solving large planning problems
Relaxed plans are used in the heuristic search planner FF for computing a numerical heuristic and extracting helpful actions. We present a novel way for extracting information fro...
Vincent Vidal
CSUR
1999
159views more  CSUR 1999»
15 years 6 months ago
Hubs, authorities, and communities
The Web can be naturally modeled as a directed graph, consisting of a set of abstract nodes (the pages) joined by directional edges (the hyperlinks). Hyperlinks encode a considerab...
Jon M. Kleinberg