Beam search for the longest common subsequence problem

The longest common subsequence problem is a classical string problem that concerns finding the common part of a set of strings. It has several important applications, for example, pattern recognition or computational biology. Most research efforts up to now have focused on solving this problem optim...

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Detalhes bibliográficos
Autores: Blum, Christian, Blesa Aguilera, Maria Josep|||0000-0001-8246-9926, López Ibañez, Manuel
Tipo de documento: relatório científico
Data de publicação:2008
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositório:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglês
OAI Identifier:oai:upcommons.upc.edu:2117/86874
Acesso em linha:https://hdl.handle.net/2117/86874
Access Level:Acceso aberto
Palavra-chave:Beam search
Longest common subsequence
Àrees temàtiques de la UPC::Informàtica::Informàtica teòrica
Descrição
Resumo:The longest common subsequence problem is a classical string problem that concerns finding the common part of a set of strings. It has several important applications, for example, pattern recognition or computational biology. Most research efforts up to now have focused on solving this problem optimally. In comparison, only few works exist dealing with heuristic approaches. In this work we present a deterministic beam search algorithm. The results show that our algorithm outperforms classical approaches as well as recent metaheuristic approaches.