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MP
2010
116views more  MP 2010»
13 years 7 months ago
Separation algorithms for 0-1 knapsack polytopes
Valid inequalities for 0-1 knapsack polytopes often prove useful when tackling hard 0-1 Linear Programming problems. To generate such inequalities, one needs separation algorithms...
Konstantinos Kaparis, Adam N. Letchford
IOR
2008
102views more  IOR 2008»
13 years 8 months ago
An Optimization Algorithm for the Ordered Open-End Bin-Packing Problem
The ordered open-end bin packing problem is a variant of the bin packing problem in which the items to be packed are sorted in a given order and the capacity of each bin can be ex...
Alberto Ceselli, Giovanni Righini
ARITH
2007
IEEE
14 years 3 months ago
How to Ensure a Faithful Polynomial Evaluation with the Compensated Horner Algorithm
The compensated Horner algorithm improves the accuracy of polynomial evaluation in IEEE-754 floating point arithmetic: the computed result is as accurate as if it was computed wi...
Philippe Langlois, Nicolas Louvet
IJCGA
2002
73views more  IJCGA 2002»
13 years 8 months ago
A Simple Factor-2/3 Approximation Algorithm for Two-Circle Point Labeling
Given a set P of n points in the plane, the two-circle point-labeling problem consists of placing 2n uniform, non-intersecting, maximum-size open circles such that each point touc...
Alexander Wolff, Michael Thon, Yin-Feng Xu
IPCO
2008
105views Optimization» more  IPCO 2008»
13 years 10 months ago
Can Pure Cutting Plane Algorithms Work?
We discuss an implementation of the lexicographic version of Gomory's fractional cutting plane method and of two heuristics mimicking the latter. In computational testing on a...
Arrigo Zanette, Matteo Fischetti, Egon Balas