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arXiv · 2009.05800

Iterative beam search algorithms for the permutation flowshop

Luc Libralesso·Pablo Andres Focke·Aurélien Secardin·Vincent Jost
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Abstract

We study an iterative beam search algorithm for the permutation flowshop (makespan and flowtime minimization). This algorithm combines branching strategies inspired by recent branch-and-bounds and a guidance strategy inspired by the LR heuristic. It obtains competitive results, reports many new-best-so-far solutions on the VFR benchmark (makespan minimization) and the Taillard benchmark (flowtime minimization) without using any NEH-based branching or iterative-greedy strategy. The source code is available at: https://gitlab.com/librallu/cats-pfsp.

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Luc Libralesso, Pablo Andres Focke, Aurélien Secardin, Vincent Jost. 2020-09-12. Iterative beam search algorithms for the permutation flowshop. https://arxiv.org/abs/2009.05800

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