Sciweavers

CPAIOR
2007
Springer
14 years 5 months ago
A Column Generation Based Destructive Lower Bound for Resource Constrained Project Scheduling Problems
In this paper we present a destructive lower bound for a number of resource constrained project scheduling (RCPS) problems, which is based on column generation. We first look at t...
J. M. van den Akker, Guido Diepen, J. A. Hoogeveen
CPAIOR
2009
Springer
14 years 6 months ago
Six Ways of Integrating Symmetries within Non-overlapping Constraints
Abstract: This paper introduces six ways for handling a chain of lexicographic ordering constraint between the origins of identical orthotopes (e.g., rectangles, boxes, hyper-recta...
Magnus Ågren, Nicolas Beldiceanu, Mats Carls...
CP
2009
Springer
14 years 6 months ago
Why Cumulative Decomposition Is Not as Bad as It Sounds
Abstract. The global cumulative constraint was proposed for modelling cumulative resources in scheduling problems for finite domain (FD) propagation. Since that time a great deal ...
Andreas Schutt, Thibaut Feydy, Peter J. Stuckey, M...