Learning nonlinear functions with MLPs and SRNs

  • Authors:
  • Ryan Cleaver;Ganesh Kumar Venayagamoorthy

  • Affiliations:
  • Real-Time Power and Intelligent Systems Laboratory at Missouri University of Science and Technology, Rolla, MO;Real-Time Power and Intelligent Systems Laboratory at Missouri University of Science and Technology, Rolla, MO

  • Venue:
  • IJCNN'09 Proceedings of the 2009 international joint conference on Neural Networks
  • Year:
  • 2009

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Abstract

In this paper, nonlinear functions generated by randomly initialized multilayer perceptrons (MLPs) and simultaneous recurrent neural networks (SRNs) are learned by MLPs and SRNs. Training SRNs is a challenging task and a new learning algorithm - DEPSO is introduced. DEPSO is a standard particle swarm optimization (PSO) algorithm with the addition of a differential evolution step to aid in swarm convergence. The results from DEPSO are compared with the standard backpropagation (BP) and PSO algorithms. It is further verified that functions generated by SRNs are harder to learn than those generated by MLPs but DEPSO provides better learning capabilities for the functions generated by MLPs and SRNs as compared to BP and PSO. These three algorithms are also trained on several benchmark functions to confirm results.