An anytime tree search algorithm for the 2018 ROADEF/EURO challenge glass cutting problem
Abstract
In this article, we present the anytime tree search algorithm we designed for the 2018 ROADEF/EURO challenge glass cutting problem proposed by the French company Saint-Gobain. The resulting program was ranked first among 64 participants. Its key components are: a new search algorithm called Memory Bounded A* (MBA*) with guide functions, a symmetry breaking strategy, and a pseudo-dominance rule. We perform a comprehensive study of these components showing that each of them contributes to the algorithm global performances. In addition, we designed a second tree search algorithm fully based on the pseudo-dominance rule and dedicated to some of the challenge instances with strong precedence constraints. On these instances, it finds the best-known solutions very quickly.
Keywords
Cite
@article{arxiv.2004.00963,
title = {An anytime tree search algorithm for the 2018 ROADEF/EURO challenge glass cutting problem},
author = {Luc Libralesso and Florian Fontan},
journal= {arXiv preprint arXiv:2004.00963},
year = {2020}
}