A double-decomposition based parallel exact algorithm for the feedback length minimization problem.
| Autor: | Shang Z; School of Economics and Management, Chang'an University, Xi'an, China., Hao JK; LERIA, Université d'Angers, Angers, France., Ma F; School of Economics and Management, Chang'an University, Xi'an, China. |
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| Jazyk: | angličtina |
| Zdroj: | PeerJ. Computer science [PeerJ Comput Sci] 2023 Sep 15; Vol. 9, pp. e1597. Date of Electronic Publication: 2023 Sep 15 (Print Publication: 2023). |
| DOI: | 10.7717/peerj-cs.1597 |
| Abstrakt: | Product development projects usually contain many interrelated activities with complex information dependences, which induce activity rework, project delay and cost overrun. To reduce negative impacts, scheduling interrelated activities in an appropriate sequence is an important issue for project managers. This study develops a double-decomposition based parallel branch-and-prune algorithm, to determine the optimal activity sequence that minimizes the total feedback length (FLMP). This algorithm decomposes FLMP from two perspectives, which enables the use of all available computing resources to solve subproblems concurrently. In addition, we propose a result-compression strategy and a hash-address strategy to enhance this algorithm. Experimental results indicate that our algorithm can find the optimal sequence for FLMP up to 27 activities within 1 h, and outperforms state of the art exact algorithms. Competing Interests: Jin-Kao Hao is an Academic Editor for PeerJ. (©2023 Shang et al.) |
| Databáze: | MEDLINE |
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