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Titolo:
Mutual information and self-control of a fully-connected low-activity neural network
Autore:
Bolle, D; Carreta, DD;
Indirizzi:
Katholieke Univ Leuven, Inst Theoret Fys, B-3001 Louvain, Belgium Katholieke Univ Leuven Louvain Belgium B-3001 s, B-3001 Louvain, Belgium Univ Rey Juan Carlos, ESCET, Madrid 28933, Spain Univ Rey Juan Carlos Madrid Spain 28933 rlos, ESCET, Madrid 28933, Spain
Titolo Testata:
PHYSICA A
fascicolo: 3-4, volume: 286, anno: 2000,
pagine: 401 - 416
SICI:
0378-4371(20001101)286:3-4<401:MIASOA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
RETRIEVAL DYNAMICS; ASSOCIATIVE MEMORY; PATTERNS; NEURONS;
Keywords:
self-control dynamics; mutual information; fully-connected network; storage capacity; basin of attraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Bolle, D Katholieke Univ Leuven, Inst Theoret Fys, Celestijnenlaan 200 D, B-3001 Louvain, Belgium Katholieke Univ Leuven Celestijnenlaan 200 D Louvain Belgium B-3001
Citazione:
D. Bolle e D.D. Carreta, "Mutual information and self-control of a fully-connected low-activity neural network", PHYSICA A, 286(3-4), 2000, pp. 401-416

Abstract

A self-control mechanism for the dynamics of a three-state fully connectedneural network is studied through the introduction of a time-dependent threshold. The self-adapting threshold is a function of both the neural and the pattern activity in the network. The time evolution of the order parameters is obtained on the basis of a recently developed dynamical recursive scheme. In the limit of low activity the mutual information is shown to be therelevant parameter in order to determine the retrieval quality. Due to self-control an improvement of this mutual information content as well as an increase of the storage capacity and an enlargement of the basins of attraction are found. These results are compared with numerical simulations. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 29/03/20 alle ore 23:39:23