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COR
2008
111views more  COR 2008»
13 years 7 months ago
An optimization algorithm for the inventory routing problem with continuous moves
The typical inventory routing problem deals with the repeated distribution of a single product from a single facility with an unlimited supply to a set of customers that can all b...
Martin W. P. Savelsbergh, Jin-Hwa Song
ICALP
2005
Springer
14 years 1 months ago
A Better Approximation Ratio for the Vertex Cover Problem
We reduce the approximation factor for Vertex Cover to 2 − Θ( 1√ log n ) (instead of the previous 2 − Θ(log log n log n ), obtained by Bar-Yehuda and Even [2], and by Moni...
George Karakostas
FOCS
2008
IEEE
13 years 8 months ago
Set Covering with our Eyes Closed
Given a universe U of n elements and a weighted collection S of m subsets of U, the universal set cover problem is to a-priori map each element u ∈ U to a set S(u) ∈ S contain...
Fabrizio Grandoni, Anupam Gupta, Stefano Leonardi,...
ORL
2011
13 years 2 months ago
Solving large Steiner Triple Covering Problems
Computing the 1-width of the incidence matrix of a Steiner Triple System gives rise to small set covering instances that provide a computational challenge for integer programming ...
James Ostrowski, Jeff Linderoth, Fabrizio Rossi, S...
DAC
1999
ACM
14 years 8 months ago
Customized Instruction-Sets for Embedded Processors
It is generally believed that there will be little more variety in CPU architectures, and thus the design of Instruction-set Architectures (ISAs) will have no role in the future o...
Joseph A. Fisher