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» Generating All Sets With Bounded Unions
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IPL
2011
94views more  IPL 2011»
14 years 8 months ago
Lower bounds for context-free grammars
Ellul, Krawetz, Shallit and Wang prove an exponential lower bound on the size of any context-free grammar generating the language of all permutations over some alphabet. We genera...
Yuval Filmus
IPL
2008
78views more  IPL 2008»
15 years 4 months ago
Resource-bounded measure on probabilistic classes
We extend Lutz's resource-bounded measure to probabilistic classes, and obtain notions of resource-bounded measure on probabilistic complexity classes such as BPE and BPEXP. ...
Philippe Moser
138
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CAIP
2005
Springer
107views Image Analysis» more  CAIP 2005»
15 years 10 months ago
Minimum-Length Polygons of First-Class Simple Cube-Curves
We consider simple cube-curves in the orthogonal 3D grid. The union of all cells contained in such a curve (also called the tube of this curve) is a polyhedrally bounded set. The c...
Fajie Li, Reinhard Klette
JGT
2007
85views more  JGT 2007»
15 years 4 months ago
Coloring quasi-line graphs
A graph G is a quasi-line graph if for every vertex v, the set of neighbors of v can be expressed as the union of two cliques. The class of quasi-line graphs is a proper superset ...
Maria Chudnovsky, Alexandra Ovetsky
152
Voted
TIT
2011
149views more  TIT 2011»
14 years 11 months ago
Network Coding for Computing: Cut-Set Bounds
Abstract—The following network computing problem is considered. Source nodes in a directed acyclic network generate independent messages and a single receiver node computes a tar...
Rathinakumar Appuswamy, Massimo Franceschetti, Nik...