Association performance of cross-coupled Hopfield nets for correlated patterns

This paper describes the improvement on the association dynamics of cross-coupled Hopfield nets with many-to-many mapping internetworks (CCHN-MMMI) for correlated patterns. CCHN-MMMI is composed of plural Hopfield-type neural networks which are mutually connected via multilayered networks (internetworks). The association performance of CCHN-MMMI is evaluated for correlated pattern sets through the computer simulations. The simulation results show that the storage capacity of CCHN-MMMI greatly increases as compared with that of Hopfield-type associative memory with pseudo-inverse matrix of weights. Especially, CCHN-MMMI with nonlinear mapping internetworks has useful characteristics for the memory and the retrieval of correlated patterns.