<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-06-01T19:46:15Z</responseDate><request verb="GetRecord" identifier="oai:riuma.uma.es:10630/16778" metadataPrefix="qdc">https://riuma.uma.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:riuma.uma.es:10630/16778</identifier><datestamp>2026-02-03T12:01:37Z</datestamp><setSpec>com_10630_2254</setSpec><setSpec>col_10630_37959</setSpec></header><metadata><qdc:qualifieddc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:qdc="http://dspace.org/qualifieddc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
   <dc:title>About Designing an Observer Pattern-Based Architecture for a Multi-objective Metaheuristic Optimization Framework</dc:title>
   <dc:creator>Benítez-Hidalgo, Antonio</dc:creator>
   <dc:creator>Nebro-Urbaneja, Antonio Jesús</dc:creator>
   <dc:creator>Durillo, Juan J.</dc:creator>
   <dc:creator>García-Nieto, José Manuel</dc:creator>
   <dc:creator>López-Camacho, Esteban</dc:creator>
   <dc:creator>Barba-González, Cristóbal</dc:creator>
   <dc:creator>Aldana-Montes, José Francisco</dc:creator>
   <dc:subject>Informática</dc:subject>
   <dcterms:abstract>Multi-objective optimization with metaheuristics is an active and popular research field which is supported by the availability of&#xd;
software frameworks providing algorithms, benchmark problems, quality indicators and other related components. Most of these tools follow a monolithic architecture that frequently leads to a lack of flexibility when a user intends to add new features to the included algorithms. In this paper, we explore a different approach by designing a component-based architecture for a multi-objective optimization framework based on the observer pattern. In this architecture, most of the algorithmic components&#xd;
are observable entities that naturally allows to register a number of observers. This way, a metaheuristic is composed of a set of observable and observer elements, which can be easily extended without requiring to modify the algorithm. We have developed a prototype of this architecture and implemented the NSGA-II evolutionary algorithm on top of it as a case study. Our analysis confirms the improvement of flexibility using this architecture, pointing out the requirements it imposes and how performance is affected when adopting it.</dcterms:abstract>
   <dcterms:dateAccepted>2018-11-05T10:00:45Z</dcterms:dateAccepted>
   <dcterms:available>2018-11-05T10:00:45Z</dcterms:available>
   <dcterms:created>2018-11-05T10:00:45Z</dcterms:created>
   <dcterms:issued>2018-11-05</dcterms:issued>
   <dc:type>conference output</dc:type>
   <dc:identifier>https://hdl.handle.net/10630/16778</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>IDC 2018</dc:relation>
   <dc:relation>Bilbao</dc:relation>
   <dc:relation>15-17 de octubre de 2018</dc:relation>
   <dc:rights>open access</dc:rights>
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