Fuzzy heterogeneous neurons for imprecise classification problems

In the classical neuron model, inputs are continuous real-valued quantities. However, in many important domains from the real world, objects are described by a mixture of continuous and discrete variables, usually containing missing information and uncertainty. In this paper, a general class of neur...

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Detalles Bibliográficos
Autores: Valdés Ramos, Julio José, Belanche Muñoz, Luis Antonio|||0000-0002-7577-1964, Alquézar Mancho, René|||0000-0002-6420-0517
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/182212
Acceso en línea:https://hdl.handle.net/2117/182212
https://dx.doi.org/10.1002/(SICI)1098-111X(200003)15:3<265::AID-INT7>3.0.CO;2-I
Access Level:acceso abierto
Palabra clave:Fuzzy systems
Neural networks (Computer science)
Machine learning
Environmental science computing
Fuzzy neural nets
Learning (artificial intelligence)
Pattern classification
Uncertainty handling
Sistemes borrosos
Xarxes neuronals (Informàtica)
Aprenentatge automàtic
Àrees temàtiques de la UPC::Informàtica::Intel·ligència artificial::Aprenentatge automàtic
Descripción
Sumario:In the classical neuron model, inputs are continuous real-valued quantities. However, in many important domains from the real world, objects are described by a mixture of continuous and discrete variables, usually containing missing information and uncertainty. In this paper, a general class of neuron models accepting heterogeneous inputs in the form of mixtures of continuous (crisp and/or fuzzy) and discrete quantities admitting missing data is presented. From these, several particular models can be derived as instances and different neural architectures constructed with them. Such models deal in a natural way with problems for which information is imprecise or even missing. Their possibilities in classification and diagnostic problems are here illustrated by experiments with data from a real-world domain in the field of environmental studies. These experiments show that such neurons can both learn and classify complex data very effectively in the presence of uncertain information.