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Aplicación De Redes Neuronales Artificiales Al Cálculo De Previsiones A Corto Plazo En El Mercado Eléctrico Español /

Author

Listed:
  • Pino, R.
  • De la Fuente, D.
  • Parreño, J
  • Priore, P

Abstract

En ocasiones, la "sobreabundancia" de información se puede convertir en un problema incluso más grave que el no disponer de series temporales suficientemente largas. Desde el punto de vista de las RNAs, es importante disponer de un conjunto de ejemplos de entrenamiento suficientemente, pero' si es desmesuradamente grande, es más que posible que, si no se utiliza un ordenador de gran capacidad y velocidad, el tiempo necesario para que la red converja y llegue a soluciones adecuadas, sea demasiado grande en términos relativos. En este trabajo proponemos método de entrenamiento (que denominamos "selectivo y continuo"), en el que se hace una selección previa de los ejemplos de entrenamiento del Perceptrón Multicapa que se utiliza para calcular las previsiones. Hemos comprobado la efectividad del método propuesto, pronosticando una serie temporal correspondiente al Mercado dc la Electricidad Español. / Sometimes, having time series that are too long can be an even greater problem, even worse than having series with too few data. From a Neural Networks point ofview, it is important to have a set oftraining samples that is big enough; however, ifthis set is too big the time required to reach an adequate solution may be too long. In this paper, we propose a training method we have called a selective and continuous method, in which a previous selection for the Multilayer Perceptron (MLP) training samples is made using an ART-type neural network. The MLP is then trained and finally it is used to make forecasts. We tested the effectiveness ofthe proposed method, making forecasts for the time series called Daily-Market Hourly Price, part ofthe Electricity Production Market of Spain.

Suggested Citation

  • Pino, R. & De la Fuente, D. & Parreño, J & Priore, P, 2004. "Aplicación De Redes Neuronales Artificiales Al Cálculo De Previsiones A Corto Plazo En El Mercado Eléctrico Español /," Investigaciones Europeas de Dirección y Economía de la Empresa (IEDEE), Academia Europea de Dirección y Economía de la Empresa (AEDEM), vol. 10(2), pages 221-232.
  • Handle: RePEc:idi:jiedee:v:10:y:2004:i:2:p:221-232
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