Two highly efficient second-order algorithms for training feedforward networks

  • Authors:
  • N. Ampazis;S. J. Perantonis

  • Affiliations:
  • Inst. of Informatics & Telecommun., Nat. Center for Sci. Res. "DEMOKRITOS", Athens;-

  • Venue:
  • IEEE Transactions on Neural Networks
  • Year:
  • 2002

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Abstract

We present two highly efficient second-order algorithms for the training of multilayer feedforward neural networks. The algorithms are based on iterations of the form employed in the Levenberg-Marquardt (LM) method for nonlinear least squares problems with the inclusion of an additional adaptive momentum term arising from the formulation of the training task as a constrained optimization problem. Their implementation requires minimal additional computations compared to a standard LM iteration. Simulations of large scale classical neural-network benchmarks are presented which reveal the power of the two methods to obtain solutions in difficult problems, whereas other standard second-order techniques (including LM) fail to converge.