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COR
2007
79views more  COR 2007»
13 years 9 months ago
Lagrangean relaxation with clusters and column generation for the manufacturer's pallet loading problem
We consider in this paper a new lagrangean relaxation with clusters for the Manufacturer’s Pallet Loading Problem (MPLP). The relaxation is based on the MPLP formulated as a Max...
Glaydston Mattos Ribeiro, Luiz Antonio Nogueira Lo...
ICN
2005
Springer
14 years 2 months ago
Primary/Secondary Path Generation Problem: Reformulation, Solutions and Comparisons
Abstract. This paper considers the primary and secondary path generation problem in traffic engineering. We first present a standard MILP model. Since its size and integrality gap...
Quanshi Xia, Helmut Simonis
RSA
2006
104views more  RSA 2006»
13 years 9 months ago
The satisfiability threshold for randomly generated binary constraint satisfaction problems
Abstract. We study two natural models of randomly generated constraint satisfaction problems. We determine how quickly the domain size must grow with n to ensure that these models ...
Alan M. Frieze, Michael Molloy
ENC
2005
IEEE
14 years 2 months ago
Hard Problem Generation for MKP
We developed generators that produce challenging MKP instances. Our approaches uses independently exponential distributions over a wide range to generate the constraint coefficien...
Maria A. Osorio, Germn Cuaya
STACS
2010
Springer
14 years 4 months ago
The Remote Point Problem, Small Bias Spaces, and Expanding Generator Sets
Using ε-bias spaces over F2, we show that the Remote Point Problem (RPP), introduced by Alon et al [APY09], has an NC2 algorithm (achieving the same parameters as [APY09]). We stu...
Vikraman Arvind, Srikanth Srinivasan