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ALGOSENSORS
2006
Springer
15 years 6 months ago
Area Based Beaconless Reliable Broadcasting in Sensor Networks
: We consider the broadcasting problem in sensor networks where the nodes have no prior knowledge of their neighbourhood. We describe several Area-based Beaconless Broadcasting Alg...
Francisco Javier Ovalle-Martínez, Amiya Nay...
CCGRID
2003
IEEE
15 years 8 months ago
A Parallel FPT Application For Clusters
Fixed-parameter tractability (FPT) techniques have recently been successful in solving NP-complete problem instances of practical importance which were too large to be solved with...
James Cheetham, Frank K. H. A. Dehne, Andrew Rau-C...
IPCO
2001
117views Optimization» more  IPCO 2001»
15 years 4 months ago
Pruning by Isomorphism in Branch-and-Cut
The paper presents a branch-and-cut for solving (0, 1) integer linear programs having a large symmetry group. The group is used for pruning the enumeration tree and for generating ...
François Margot
117
Voted
JCT
2008
138views more  JCT 2008»
15 years 2 months ago
There exists no Steiner system S(4, 5, 17)
If a Steiner system S(4, 5, 17) exists, it would contain derived S(3, 4, 16) designs. By relying on a recent classification of the S(3, 4, 16), an exhaustive computer search for S...
Patric R. J. Östergård, Olli Pottonen
KDD
2008
ACM
115views Data Mining» more  KDD 2008»
16 years 3 months ago
Topical query decomposition
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
Francesco Bonchi, Carlos Castillo, Debora Donato, ...