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COMCOM
2004
84views more  COMCOM 2004»
13 years 9 months ago
A self-extracting accurate modeling for bounded-delay video services
This article proposes the XGOP-B deterministic traffic model for MPEG video services requiring strict bounds on the quality of service provided by the network. The XGOP-B model ta...
Marcelo Dias de Amorim, Otto Carlos Muniz Bandeira...
CPC
2004
98views more  CPC 2004»
13 years 9 months ago
And/Or Trees Revisited
We consider boolean functions over n variables. Any such function can be represented (and computed) by a complete binary tree with and or or in the internal nodes and a literal in...
Brigitte Chauvin, Philippe Flajolet, Danièl...
IPL
2002
118views more  IPL 2002»
13 years 9 months ago
Differential approximation results for the traveling salesman and related problems
This paper deals with the problem of constructing a Hamiltonian cycle of optimal weight, called TSP. We show that TSP is 2/3-differential approximable and can not be differential a...
Jérôme Monnot
IPL
1998
119views more  IPL 1998»
13 years 9 months ago
A 2.5-Factor Approximation Algorithm for the k-MST Problem
The k-MST problem requires finding that subset of at least k vertices of a given graph whose Minimum Spanning Tree has least weight amongst all subsets of at least k vertices. Th...
Sunil Arya, H. Ramesh
JCT
1998
76views more  JCT 1998»
13 years 9 months ago
Progressions in Sequences of Nearly Consecutive Integers
For k > 2 and r ≥ 2, let G(k, r) denote the smallest positive integer g such that every increasing sequence of g integers {a1, a2, . . . , ag} with gaps aj+1 − aj ∈ {1, ....
Noga Alon, Ayal Zaks