Seminar Calendar
for Mathematical Biology events the next 12 months of Saturday, August 1, 2009.

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Thursday, October 8, 2009

Mathematical Biology Seminar
1:00 pm   in 345 Altgeld Hall,  Thursday, October 8, 2009
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Submitted by zrapti.
Tsvi Achler (Department of Computer Science, University of Illinois at Urbana-Champaign)
Using Non-Oscillatory Dynamics to Disambiguate Simultaneous Patterns
Abstract: How does the brain contend with simultaneous patterns? Training methods required for machine learning and neural network algorithms are not optimal for simultaneous patterns. I introduce a nonlinear classifier method motivated by a feedback-inhibition/negative-feedback configuration. Indirect evidence for neuron-circuits and structures that support this configuration are found ubiquitously in brain regions responsible for sensory processing. With a focus on simultaneous pattern processing, the performance of machine learning, neural network and feedback inhibition algorithms are compared. Feedback inhibition networks are robust, inherently process mixtures of previously learned patterns, and predict several cognitive phenomena.