Abstract
Based on Genetic Algorithms (GAs) with matrix approach, the presented method introduces a pre-decision variable to suit the precedent relationship of activities in project scheduling problem and this could avoid the modification of traditional genetic algorithm operators and chromosome structures which will trigger great time consuming for searching solutions. Two types of scheduling problem in construction industry are considered in this paper, traditional contracts with fixed finish time constraint and the Build-Operate-Transfer (BOT) which has a flexible deadline with a reward/penallty regulation. Details of the problem formulation and encoding method are shown and six trial tests are performed with good evolution results.
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