A polarized adaptive schedule generation scheme for the          resource‐constrained project scheduling problem

A polarized adaptive schedule generation scheme for the resource‐constrained project scheduling problem

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Article ID: iaor20127597
Volume: 46
Issue: 1
Start Page Number: 23
End Page Number: 39
Publication Date: Jan 2012
Journal: RAIRO - Operations Research
Authors:
Keywords: combinatorial optimization, heuristics: genetic algorithms, project management
Abstract:

This paper presents a hybrid schedule generation scheme for solving the resource‐constrained project scheduling problem. The scheme, which is called the Polarized Adaptive Scheduling Scheme (PASS), can operate in a spectrum between two poles, namely the parallel and serial schedule generation schemes. A polarizer parameter in the range between zero and one indicates how similarly the PASS behaves like each of its two poles. The presented hybrid is incorporated into a novel genetic algorithm that never degenerates, resulting in an effective self‐adaptive procedure. The key point of this genetic algorithm is the embedding of the polarizer parameter as a gene in the genomes used. Through this embedding, the procedure learns via monitoring its own performance and incorporates this knowledge in conducting the search process. The computational experiments indicate that the procedure can produce optimal solutions for a large percentage of benchmark instances.

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