Work

Unsupervised prototype learning in an associative-memory network

Year: 2017
Type: preprint
Abstract: Unsupervised learning in a generalized Hopfield associative-memory network is investigated in this work. First, we prove that the (generalized) Hopfield model is equivalent to a semi-restricted Boltzmann machine with a layer of visible neurons and another layer of hidden binary neurons, so it could serve as the building block for a multilayered deep-learning system. We then demonstrate that the Hopfield network can learn to form a faithful internal representation of the observed samples, with the learned memory patterns being prototypes of the input data. Furthermore, we propose a spectral method to extract a small set of concepts (idealized prototypes) as the most concise summary or abstraction of the empirical data.
Authors: Zhen, Huiling, Wang, Shang-Nan, Zhou, Hai-Jun
Language: English
Open Access status: green
OpenAlex ID: W2607300641
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