Geem, Z W (2010) Multiobjective optimization of time-cost trade-off using harmony search. Journal of Construction Engineering and Management, 136(6), pp. 711-716. ISSN 0733-9364
Abstract
Completing a project with minimal time as well as minimal cost is a critical factor for scheduling a project. However, because completion speed tends to be correlated with cost (e.g., usually, time can be saved if more workers are hired), the relationship between time and cost is a trade-off. This study employed a phenomenon-mimicking algorithm, harmony search to perform this biobjective trade-off. The harmony search algorithm was applied to two test examples, and good Pareto solutions were obtained when compared with other algorithms, such as the genetic algorithm and the ant colony optimization algorithm. The harmony search algorithm explored only a small amount of total solution space in order to solve this combinatorial optimization problem. The model in this study has obtained good results with a network of up to 18 nodes, however it is anticipated that the model could be useful to solve bigger networks in practice without any difficult problem.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | combinatorial optimization; critical path method; harmony search; project scheduling; time-cost trade-off problem |
| Index terms: | genetic algorithm, scheduling, project scheduling, critical path method, ant colony optimization, critical factor, time-cost trade-off |
| Subjects: | operations research, risk assessment, project controls, decision-making and optimization, algorithms, quantity surveying |
| Topics: | Research Practice, Risk Management, Digital Applications, Time Control |
| Descriptive scope: | 3 PCA |
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