Lecture Notes in Computer Science, 2002, Volume 2415/2002, 144, DOI: 10.1007/3-540-46084-5_34

Encoding the Temporal Statistics of Markovian Sequences of Stimuli in Recurrent Neuronal Networks

Alessandro Usseglio Viretta, Stefano Fusi and Shih-Chii Liu

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Abstract

Encoding, storing, and recalling a temporal sequence of stimuli in a neuronal network can be achieved by creating associations between pairs of stimuli that are contiguous in time. This idea is illustrated by studying the behavior of a neural network model with binary neurons and binary stochastic synapses. The network extracts in an unsupervised manner the temporal statistics of the sequence of input stimuli. When a stimulus triggers the recalling process, the statistics of the output patterns reflects those of the input. If the sequence of stimuli is generated through a Markov process, then the network dynamics faithfully reproduces all the transition probabilities.

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