The arithmetic processing circuit includes a first layer configured to dispose a learning neural network to compute a coefficient to be set in a recognition neural network, configured to recognize input data by using the coefficient computed on a basis of a recognition result of the recognition neural network with for the input data serving as a reference for computing the coefficient and a recognition result serving as a reference for the input data serving as the reference. The circuit further includes a second layer configured to dispose the recognition neural network to recognize the input data by the coefficient computed by the learning neural network. The circuit still further includes a third layer disposed between the first layer and the second layer, and configured to dispose a memory connected to both of the learning neural network and the recognition neural network.