Optimum-Path Forest based on k-connectivity: Theory and applications

Graph-based pattern recognition techniques have been in the spotlight for many years, since there is a constant need for faster and more effective approaches. Among them, the Optimum-Path Forest (OPF) framework has gained considerable attention in the last years, mainly due to the promising results...

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Detalles Bibliográficos
Autores: Papa, Joao Paulo [UNESP], Nachif Fernandes, Silas Evandro, Falcao, Alexandre Xavier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/162543
Acceso en línea:http://dx.doi.org/10.1016/j.patrec.2016.07.026
http://hdl.handle.net/11449/162543
Access Level:acceso abierto
Palabra clave:Pattern classification
Optimum-Path Forest
Supervised learning
Descripción
Sumario:Graph-based pattern recognition techniques have been in the spotlight for many years, since there is a constant need for faster and more effective approaches. Among them, the Optimum-Path Forest (OPF) framework has gained considerable attention in the last years, mainly due to the promising results obtained by OPF-based classifiers, which range from unsupervised, semi-supervised and supervised learning. In this paper, we consider a deeper theoretical explanation concerning the supervised OPF classifier with k-neighborhood (OPFk), as well as we proposed two different training and classification algorithms that allow OPFk to work faster. The experimental validation against standard OPF and Support Vector Machines also validates the robustness of OPFk in real and synthetic datasets. (C) 2016 Elsevier B.V. All rights reserved.