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CG Challenge
DOI: 10.4230/LIPIcs.SoCG.2022.73
Local Search with Weighting Schemes for the CG:SHOP 2022 Competition (CG Challenge)

Authors: Florian Fontan, Pascal Lafourcade, Luc Libralesso, and Benjamin Momège

Published in: LIPIcs, Volume 224, 38th International Symposium on Computational Geometry (SoCG 2022)

Abstract
This paper describes the heuristics used by the LASAOFOOFUBESTINNRRALLDECA team for the CG:SHOP 2022 challenge. We introduce a new greedy algorithm that exploits information about the challenge instances, and hybridize two classical local-search schemes with weighting schemes. We found 211/225 best-known solutions. Hence, with the algorithms presented in this article, our team was able to reach the 3rd place of the challenge, among 40 participating teams.
Cite as

Florian Fontan, Pascal Lafourcade, Luc Libralesso, and Benjamin Momège. Local Search with Weighting Schemes for the CG:SHOP 2022 Competition (CG Challenge). In 38th International Symposium on Computational Geometry (SoCG 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 224, pp. 73:1-73:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{fontan_et_al:LIPIcs.SoCG.2022.73,
  author =	{Fontan, Florian and Lafourcade, Pascal and Libralesso, Luc and Mom\`{e}ge, Benjamin},
  title =	{{Local Search with Weighting Schemes for the CG:SHOP 2022 Competition}},
  booktitle =	{38th International Symposium on Computational Geometry (SoCG 2022)},
  pages =	{73:1--73:6},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-227-3},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{224},
  editor =	{Goaoc, Xavier and Kerber, Michael},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.SoCG.2022.73},
  URN =		{urn:nbn:de:0030-drops-160811},
  doi =		{10.4230/LIPIcs.SoCG.2022.73},
  annote =	{Keywords: heuristics, vertex coloring, digital geometry}
}
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