2 Search Results for "Peano, Andrea"

Document
DOI: 10.4230/LIPIcs.ICLP.2012.464
An ASP Approach for the Optimal Placement of the Isolation Valves in a Water Distribution System

Authors: Andrea Peano

Published in: LIPIcs, Volume 17, Technical Communications of the 28th International Conference on Logic Programming (ICLP'12) (2012)

Abstract
My Ph.D. Thesis relates to real-life optimization problems in the hydraulic engineering field. More precisely, with the collaboration of computer scientists, operational researchers and hydraulic engineers, I investigate and exploit potentialities of various Operational Research and Artificial Intelligence techniques in order to achieve good (and, whenever possible, optimal) solutions for those particular design issues of the urban hydraulic network that can be effectively modelled as known combinatorial optimization problems. Furthermore, suchdesign issues often require to devise new specialized variants of the known combinatorial optimization problems.
Cite as

Andrea Peano. An ASP Approach for the Optimal Placement of the Isolation Valves in a Water Distribution System. In Technical Communications of the 28th International Conference on Logic Programming (ICLP'12). Leibniz International Proceedings in Informatics (LIPIcs), Volume 17, pp. 464-468, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{peano:LIPIcs.ICLP.2012.464,
  author =	{Peano, Andrea},
  title =	{{An ASP Approach for the Optimal Placement of the Isolation Valves in a Water Distribution System}},
  booktitle =	{Technical Communications of the 28th International Conference on Logic Programming (ICLP'12)},
  pages =	{464--468},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-43-9},
  ISSN =	{1868-8969},
  year =	{2012},
  volume =	{17},
  editor =	{Dovier, Agostino and Santos Costa, V{\'\i}tor},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ICLP.2012.464},
  URN =		{urn:nbn:de:0030-drops-36470},
  doi =		{10.4230/LIPIcs.ICLP.2012.464},
  annote =	{Keywords: Answer Set Programming, Isolation Valves Positioning, Hydroinformatics}
}
Document
DOI: 10.4230/OASIcs.SCOR.2012.103
A Bilevel Mixed Integer Linear Programming Model for Valves Location in Water Distribution Systems

Authors: Andrea Peano, Maddalena Nonato, Marco Gavanelli, Stefano Alvisi, and Marco Franchini

Published in: OASIcs, Volume 22, 3rd Student Conference on Operational Research (2012)

Abstract
The positioning of valves on the pipes of a Water Distribution System (WDS) is a core decision in the design of the isolation system of a WDS. When closed, valves permit to isolate a small portion of the network, so called a sector, which can be de-watered for maintenance purposes at the cost of a supply disruption. However, valves have a cost so their number is limited, and their position must be chosen carefully in order to minimize the worst-case supply disruption which may occur during pipe maintenance. Supply disruption is usually measured as the undelivered user demand. When a sector is isolated by closing its boundary valves, other portions of the network may become disconnected from the reservoirs as a secondary effect, and experience supply disruption as well. This induced isolation must be taken into account when computing the undelivered demand induced by a sector isolation. While sector topology can be described in terms of graph partitioning, accounting for induced undelivered demand requires network flow modeling. The aim of the problem is to locate a given number of valves at the extremes of the network pipes so that the maximum supply disruption is minimized. We present a Bilevel Mixed Integer Linear Programming (MILP) model for this problem and show how to reduce it to a single level MILP by exploiting duality. Computational results on a real case study are presented, showing the effectiveness of the approach.
Cite as

Andrea Peano, Maddalena Nonato, Marco Gavanelli, Stefano Alvisi, and Marco Franchini. A Bilevel Mixed Integer Linear Programming Model for Valves Location in Water Distribution Systems. In 3rd Student Conference on Operational Research. Open Access Series in Informatics (OASIcs), Volume 22, pp. 103-112, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{peano_et_al:OASIcs.SCOR.2012.103,
  author =	{Peano, Andrea and Nonato, Maddalena and Gavanelli, Marco and Alvisi, Stefano and Franchini, Marco},
  title =	{{A Bilevel Mixed Integer Linear Programming Model for Valves Location in Water Distribution Systems}},
  booktitle =	{3rd Student Conference on Operational Research},
  pages =	{103--112},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-39-2},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{22},
  editor =	{Ravizza, Stefan and Holborn, Penny},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SCOR.2012.103},
  URN =		{urn:nbn:de:0030-drops-35519},
  doi =		{10.4230/OASIcs.SCOR.2012.103},
  annote =	{Keywords: Isolation Valves Positioning, Bilevel Programming, Hydroinformatics}
}
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