ERROR BACKWARD PROPAGATION AND NERVE NETWORK SYSTEM

摘要

PURPOSE: To accelerate a processing by executing the updating of a synapse coefficient matrix and a transposed synapse coefficient matrix relating to it parallelly to the components of error vectors or output neuron state vectors. CONSTITUTION: In this neural network system provided with two processing groups 11 and 12 and a central processing unit 10, the processing group 11 executes a decomposition step and the processing group 12 executes error backward propagation. Then, the updating of the respective transposed synapse coefficient matrixes is executed parallelly to the components of the respective output neuron state vectors or the respective error vectors and the updating of the respective relating transposed synapse coefficient matrixes is executed parallelly to the components of relating error vectors or relating output neuron state vectors. Thus, the processing speed of a circuit network is accelerated.