Numéro
J. Phys. I France
Volume 2, Numéro 11, November 1992
Page(s) 2019 - 2024
DOI https://doi.org/10.1051/jp1:1992262
DOI: 10.1051/jp1:1992262
J. Phys. I France 2 (1992) 2019-2024

Categorization and generalization in the Hopfield model

Miguel C. Branchtein and Jeferson J. Arenzon

Instituto de Física, Universidade Federal do Rio Grande do Sul, C.P. 15051, 91501-970, Porto Algere, RS, Brazil


(Received 1 September 1992, accepted in final form 8 September 1992)

Abstract
The capability of the Hopfield model in generalizing concepts from examples is studied through numerical simulation. Noisy examples are taught and we test if the network grasps the underlying concepts. Several parameters are modified along the simulation: the number of concepts and examples and the initial noise in the examples. It is obtained the first order transition from the retrieval phase to the categorization phase predicted by the mean field theory.



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