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Published in: Neural Processing Letters 3/2019

28-05-2019

Increasing Capacity of Association Memory by Means of Synaptic Clustering

Authors: Viacheslav Osaulenko, Bernard Girau, Oleksandr Makarenko, Patrick Henaff

Published in: Neural Processing Letters | Issue 3/2019

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Abstract

Making association is an essential property of human cognition. Systems that try to mimic this process and to make a coherent model of the world should have robust and high capacity association memory. Findings of nonlinear properties of dendritic tree suggest an alternative way how neurons can store associations. In this paper, we present a minimalistic neuron model with clustered synapses and show that it provides much higher association memory capacity compared to traditional models. Due to properties of sparse activation and tracking higher-order correlations in the input pattern an individual neuron can recognize thousands of patterns. Theoretical examination shows that this high capacity is reached because learning exact combinations of active neurons extends the dimension of an input space and thus increases pattern separability. We argue that such beneficial computational properties is realized in biological neural networks through synaptic clustering and sustaining sparse activity in memory-related areas.

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Metadata
Title
Increasing Capacity of Association Memory by Means of Synaptic Clustering
Authors
Viacheslav Osaulenko
Bernard Girau
Oleksandr Makarenko
Patrick Henaff
Publication date
28-05-2019
Publisher
Springer US
Published in
Neural Processing Letters / Issue 3/2019
Print ISSN: 1370-4621
Electronic ISSN: 1573-773X
DOI
https://doi.org/10.1007/s11063-019-10051-7

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