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Documents authored by Gabbrielli, Maurizio

Document
DOI: 10.4230/LIPIcs.CP.2026.56
Constraint Solving and Particle Swarm Optimization for Fixture Layout Optimization

Authors: Anna Vitali, Roberto Amadini, Vittorio Maniezzo, and Maurizio Gabbrielli

Published in: LIPIcs, Volume 379, 32nd International Conference on Principles and Practice of Constraint Programming (CP 2026)

Abstract
In the wood industry, ensuring the stability and immobility of a workpiece during machining is essential. Vacuum suction cups are commonly used as fixtures, as they can rotate to better conform to the workpiece perimeter. However, this rotational capability introduces additional complexity into fixture placement. This paper addresses the problem of optimally positioning rotatable fixtures by combining two complementary techniques. First, we solve a restricted version of the problem that neglects rotations using a constraint solver, yielding an initial feasible solution. This solution is then refined using a Particle Swarm Optimization algorithm that accounts for rotation. Experimental results show that the quality of the initial solution significantly influences the final placement, and that the proposed approach can effectively support expert operators in making improved decisions.
Cite as

Anna Vitali, Roberto Amadini, Vittorio Maniezzo, and Maurizio Gabbrielli. Constraint Solving and Particle Swarm Optimization for Fixture Layout Optimization. In 32nd International Conference on Principles and Practice of Constraint Programming (CP 2026). Leibniz International Proceedings in Informatics (LIPIcs), Volume 379, pp. 56:1-56:18, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

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@InProceedings{vitali_et_al:LIPIcs.CP.2026.56,
  author =	{Vitali, Anna and Amadini, Roberto and Maniezzo, Vittorio and Gabbrielli, Maurizio},
  title =	{{Constraint Solving and Particle Swarm Optimization for Fixture Layout Optimization}},
  booktitle =	{32nd International Conference on Principles and Practice of Constraint Programming (CP 2026)},
  pages =	{56:1--56:18},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-432-1},
  ISSN =	{1868-8969},
  year =	{2026},
  volume =	{379},
  editor =	{Beldiceanu, Nicolas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CP.2026.56},
  URN =		{urn:nbn:de:0030-drops-266897},
  doi =		{10.4230/LIPIcs.CP.2026.56},
  annote =	{Keywords: Constraint Programming, Mixed-Integer Programming, Particle Swarm Optimization, Fixture Layout Optimization, Industrial Application}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.Microservices.2020-2022
OASIcs, Volume 111, Microservices 2020/2022, Complete Volume

Authors: Gokila Dorai, Maurizio Gabbrielli, Giulio Manzonetto, Aomar Osmani, Marco Prandini, Gianluigi Zavattaro, and Olaf Zimmermann

Published in: OASIcs, Volume 111, Joint Post-proceedings of the Third and Fourth International Conference on Microservices (Microservices 2020/2022)

Abstract
OASIcs, Volume 111, Microservices 2020/2022, Complete Volume
Cite as

Joint Post-proceedings of the Third and Fourth International Conference on Microservices (Microservices 2020/2022). Open Access Series in Informatics (OASIcs), Volume 111, pp. 1-156, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Proceedings{dorai_et_al:OASIcs.Microservices.2020-2022,
  title =	{{OASIcs, Volume 111, Microservices 2020/2022, Complete Volume}},
  booktitle =	{Joint Post-proceedings of the Third and Fourth International Conference on Microservices (Microservices 2020/2022)},
  pages =	{1--156},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-306-5},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{111},
  editor =	{Dorai, Gokila and Gabbrielli, Maurizio and Manzonetto, Giulio and Osmani, Aomar and Prandini, Marco and Zavattaro, Gianluigi and Zimmermann, Olaf},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.Microservices.2020-2022},
  URN =		{urn:nbn:de:0030-drops-194618},
  doi =		{10.4230/OASIcs.Microservices.2020-2022},
  annote =	{Keywords: OASIcs, Volume 111, Microservices 2020/2022, Complete Volume}
}
Document
Front Matter
DOI: 10.4230/OASIcs.Microservices.2020-2022.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Gokila Dorai, Maurizio Gabbrielli, Giulio Manzonetto, Aomar Osmani, Marco Prandini, Gianluigi Zavattaro, and Olaf Zimmermann

Published in: OASIcs, Volume 111, Joint Post-proceedings of the Third and Fourth International Conference on Microservices (Microservices 2020/2022)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

Joint Post-proceedings of the Third and Fourth International Conference on Microservices (Microservices 2020/2022). Open Access Series in Informatics (OASIcs), Volume 111, pp. 0:i-0:xiv, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{dorai_et_al:OASIcs.Microservices.2020-2022.0,
  author =	{Dorai, Gokila and Gabbrielli, Maurizio and Manzonetto, Giulio and Osmani, Aomar and Prandini, Marco and Zavattaro, Gianluigi and Zimmermann, Olaf},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{Joint Post-proceedings of the Third and Fourth International Conference on Microservices (Microservices 2020/2022)},
  pages =	{0:i--0:xiv},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-306-5},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{111},
  editor =	{Dorai, Gokila and Gabbrielli, Maurizio and Manzonetto, Giulio and Osmani, Aomar and Prandini, Marco and Zavattaro, Gianluigi and Zimmermann, Olaf},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.Microservices.2020-2022.0},
  URN =		{urn:nbn:de:0030-drops-194624},
  doi =		{10.4230/OASIcs.Microservices.2020-2022.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
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