EVALUATION ALGORITHM FOR A DECOMPOSED SIMPLICIAL PIECEWISE-LINEAR FORMULATION

In this work an algorithm for the evaluation of N-dimensional piecewise-linear (PWL) functions is presented. The type of PWL representation which is considered is the denominated simplicial representation that is defined in a N-dimensional domain partitioned by hyperplanes and divided into simplices...

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Detalles Bibliográficos
Autores: V. M. Jiménez--Fernández, J. Agustín-Rodríguez, P. Marcelo-Julián, O. Agamennoni
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:México
Institución:Instituto Nacional de Astrofísica, Óptica y Electrónica
Repositorio:Redalyc-INAOE
OAI Identifier:oai:redalyc.org:47413023003
Acceso en línea:https://www.redalyc.org/articulo.oa?id=47413023003
Access Level:acceso abierto
Palabra clave:Ingeniería
Linear
Piecewise
Simplicial
Evaluation
Descripción
Sumario:In this work an algorithm for the evaluation of N-dimensional piecewise-linear (PWL) functions is presented. The type of PWL representation which is considered is the denominated simplicial representation that is defined in a N-dimensional domain partitioned by hyperplanes and divided into simplices. The algorithm performs a local function computation into the specific simplex where the evaluation point is found. The simplicial PWL (S-PWL) interpolating equations are collected into a matrix system which adopts the form of the decomposed PWL models. The algorithm works directly with this decomposed model and determines the value of the S-PWL function simply by its values on the vertices.