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ANOR
2002
128views more  ANOR 2002»
13 years 4 months ago
Crew Assignment via Constraint Programming: Integrating Column Generation and Heuristic Tree Search
The Airline Crew Assignment Problem (ACA) consists of assigning lines of work to a set of crew members such that a set of activities is partitioned and the costs for that assignmen...
Meinolf Sellmann, Kyriakos Zervoudakis, Panagiotis...
PATAT
2004
Springer
135views Education» more  PATAT 2004»
13 years 10 months ago
A Column Generation Scheme for Faculty Timetabling
In this paper we deal with the problem of building a timetable for the courses of a university faculty. We propose an integer linear programming approach based on column generation...
Andrea Qualizza, Paolo Serafini
CONSTRAINTS
2006
115views more  CONSTRAINTS 2006»
13 years 5 months ago
A Cost-Regular Based Hybrid Column Generation Approach
Abstract. Constraint Programming (CP) offers a rich modeling language of constraints embedding efficient algorithms to handle complex and heterogeneous combinatorial problems. To s...
Sophie Demassey, Gilles Pesant, Louis-Martin Rouss...
CPAIOR
2007
Springer
13 years 11 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
COR
2006
118views more  COR 2006»
13 years 5 months ago
Accelerating column generation for aircraft scheduling using constraint propagation
We discuss how constraint programming can improve the performance of a column generation solution process for the NP-hard Tail Assignment problem in aircraft scheduling. Combining...
Mattias Grönkvist