Stochastic Ising model with plastic interactions

Eugene Pechersky, Guillem Via and Anatoly Yambartsev

Statistics & Probability Letters, 2017, vol. 123, issue C, 100-106

Abstract: We propose a new model based on the Ising model with the aim to study synaptic plasticity phenomena in neural networks. It is today well established in biology that the synapses or connections between certain types of neurons are strengthened when the neurons are co-active, a form of the so called synaptic plasticity. Such mechanism is believed to mediate the formation and maintenance of memories. The proposed model describes some features from that phenomenon. Together with the spin-flip dynamics, in our model the coupling constants are also subject to stochastic dynamics, so that they interact with each other. The evolution of the system is described by a continuous-time Markov jump process.

Keywords: Markov chain; Stochastic Ising model; Synaptic plasticity; Neural networks; Transience (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1016/j.spl.2016.11.028

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