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Set Covering Problem and Set Partitioning Problem are models for many important industrial applications. In this paper, we solve some Operational Research benchmarks with Ant Colony Optimization using a new transition rule. A Lookahead mechanism was incorporated to check constraint consistency in each iteration. Computational results are presented showing the advantages to use this additional mechanism...
Subset problems are models for many important applications in the field of operational research. In this paper, we solve some benchmarks of the set partitioning problem with an ant-based algorithm using a transition rule with a lookahead mechanism. It was incorporated to check constraint consistency in each iteration. Computational results are presented showing the advantages to use this additional...
A two-phase set partitioning model is proposed to solve passenger transportation, this problem is a real life application for the pickup and delivery problem where vehicles have to transport passengers from their locations to different destinations with minimal routing cost. Following the classical cluster-first route-second approach the problem is modelled in two phases and solved like a set partitioning...
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