The Bernstein Center Freiburg




Informal Seminar
Marco Brigham

Brain Dynamics Group
Canadian Centre for Behavioural Neuroscience
University of Lethbridge, Canada


A novel Markov-Chain representation for the dynamics of Chialvo-Bak networks
Monday, May 3, 2010
11:00 h sharp
Library
Bernstein Center
Hansastr. 9a
Abstract:
The Chialvo-Bak neural networks (D. Chialvo and P. Bak, 1999) feature learning, memory and adaptation through simple stochastic dynamics based on synaptic depression and "Winner-Take-All" (WTA) rules. In the simple three layer feed-forward topology, a Markov Chain representation was developed to characterize its dynamical properties and estimate the learning time distribution. This enables to study the "power law"-like tail of the learning time distribution (J.R. Wakeling, 2003) that is thought to underlie an order-disorder transition in the model.
The talk is open to the public. Guests are cordially invited!
www.bcf.uni-freiburg.de