Analysis of Bidirectional Associative Memory using SCSNA and Statistical Neurodynamics

Details Analysis of Bidirectional Associative Memory using SCSNA and Statistical Neurodynamics Analysis of Bidirectional Associative Memory using SCSNA and Statistical Neurodynamics

2004-02-04

arxiv.org/abs/cond-mat/0402126v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

13 pages, 4 figures

Scientific paper

10.1143/JPSJ.73.2406

Bidirectional associative memory (BAM) is a kind of an artificial neural network used to memorize and retrieve heterogeneous pattern pairs. Many efforts have been made to improve BAM from the the viewpoint of computer application, and few theoretical studies have been done. We investigated the theoretical characteristics of BAM using a framework of statistical-mechanical analysis. To investigate the equilibrium state of BAM, we applied self-consistent signal to noise analysis (SCSNA) and obtained a macroscopic parameter equations and relative capacity. Moreover, to investigate not only the equilibrium state but also the retrieval process of reaching the equilibrium state, we applied statistical neurodynamics to the update rule of BAM and obtained evolution equations for the macroscopic parameters. These evolution equations are consistent with the results of SCSNA in the equilibrium state.

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