4.6 Article

μG2-ELM: An upgraded implementation of μ G-ELM

期刊

NEUROCOMPUTING
卷 171, 期 -, 页码 1302-1312

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.neucom.2015.07.069

关键词

Artificial neural networks; Extreme Learning Machines; Multi-objective evolutionary algorithms; Decision theory

资金

  1. research group of Gobierno de Aragon E58
  2. research group of Gobierno de Aragon E22

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mu G-ELM is a multiobjective evolutionary algorithm which looks for the best (in terms of the MSE) and most compact artificial neural network using the ELM methodology. In this work we present the mu G2-ELM, an upgraded version of JIG-ELM, previously presented by the authors. The upgrading is based on three key elements: a specifically designed approach for the initialization of the weights of the initial artificial neural networks, the introduction of a re-sowing process when selecting the population to be evolved and a change of the process used to modify the weights of the artificial neural networks. To test our proposal we consider several state-of-the-art Extreme Learning Machine (ELM) algorithms and we confront them using a wide and well-known set of continuous, regression and classification problems. From the conducted experiments it is proved that the mu G2-ELM shows a better general performance than the previous version and also than other competitors. Therefore, we can guess that the combination of evolutionary algorithms with the ELM methodology is a promising subject of study since both together allow for the design of better training algorithms for artificial neural networks. (C) 2015 Elsevier B.V. All rights reserved.

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