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» The Complexity of Probabilistic EL
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COCO
2005
Springer
123views Algorithms» more  COCO 2005»
14 years 1 months ago
If NP Languages are Hard on the Worst-Case Then It is Easy to Find Their Hard Instances
We prove that if NP ⊆ BPP, i.e., if SAT is worst-case hard, then for every probabilistic polynomial-time algorithm trying to decide SAT, there exists some polynomially samplable ...
Dan Gutfreund, Ronen Shaltiel, Amnon Ta-Shma
CC
2007
Springer
121views System Software» more  CC 2007»
13 years 7 months ago
If NP Languages are Hard on the Worst-Case, Then it is Easy to Find Their Hard Instances
We prove that if NP ⊆ BPP, i.e., if SAT is worst-case hard, then for every probabilistic polynomial-time algorithm trying to decide SAT, there exists some polynomially samplable ...
Dan Gutfreund, Ronen Shaltiel, Amnon Ta-Shma
CORR
2007
Springer
131views Education» more  CORR 2007»
13 years 7 months ago
Cognitive Medium Access: Exploration, Exploitation and Competition
—This paper considers the design of efficient strategies that allow cognitive users to choose frequency bands to sense and access among multiple bands with unknown parameters. F...
Lifeng Lai, Hesham El Gamal, Hai Jiang, H. Vincent...

Publication
269views
15 years 5 months ago
Models of Transportation and Land Use Change:  A Guide to the Territory
Modern urban regions are highly complex entities. Despite the difficulty of modeling every relevant aspect of an urban region, researchers have produced a rich variety of models de...
Michael Iacono, David Levinson, Ahmed El-Geneidy
ICIP
2004
IEEE
14 years 9 months ago
Interactive segmentation using curve evolution and relevance feedback
We propose in this paper an interactive segmentation algorithm based on curve evolution techniques. The task of automated segmentation has proven to be highly complex and applicat...
Motaz A. El Saban, B. S. Manjunath