Prerequisites for integrating unsupervised and reinforcement learning in a single network of spiking neurons

  • Authors:
  • Sebastian Handrich;Andreas Herzog;Andreas Wolf;Christoph S. Herrmann

  • Affiliations:
  • Department of Biological Psychology, Faculty of Natural Sciences, Otto-von-Guericke University, Magdeburg, Germany;Department of Biological Psychology, Faculty of Natural Sciences, Otto-von-Guericke University, Magdeburg, Germany;Department of Biological Psychology, Faculty of Natural Sciences, Otto-von-Guericke University, Magdeburg, Germany;Department of Biological Psychology, Faculty of Natural Sciences, Otto-von-Guericke University, Magdeburg, Germany

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

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Abstract

Most artificial neural network architectures learn either via unsupervised or reinforcement learning but rarely via both. However, the brain effectively integrates both types of learning. We describe which prerequisites are necessary in a spiking network architecture in order to integrate both learning mechanisms and present a network which meets these requirements. In a nut shell, the network has a winner-take-all type output layer resembling the motor output and an excitatory feedback layer which extends the firing of the input layer until after the end of external stimulation resembling the function of the hippocampus.