Evolutionary computation for minimizing makespan on identical machines with mold constraints

  • Authors:
  • Tzung-Pei Hong;Pei-Chen Sun;Sheng-Shin Jou

  • Affiliations:
  • Department of Computer Science and Information Engineering, National University of Kaohsiung, Taiwan, R.O.C. and Department of Computer Science and Engineering, National Sun Yat-sen University, Ta ...;Graduate Institute of Information and Computer Education, National Kaohsiung Normal University, Taiwan, R.O.C.;Graduate Institute of Information and Computer Education, National Kaohsiung Normal University, Taiwan, R.O.C.

  • Venue:
  • WSEAS Transactions on Systems and Control
  • Year:
  • 2009

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Abstract

This paper focuses on minimizing makespan of identical-machines scheduling problems with mold constraints. In this kind of problems, jobs are non-preemptive with mold constraints and several identical machines are available. Feasible solutions are randomly generated and evolved by the proposed approach and an adjustment operator is designed to fill up the empty time slot due to the mold constraint. The proposed approach can also be easily extended to solve the same problem but with the fitness function of the total complete time. Experiments with and without the adjustment operator are made to analyze the performance of the proposed approach. Experimental results show that the adjustment operator does increase the performance of the scheduling.