Device and Computer Realizing Calculation of Reservoir Layer of Reservoir Computing

A computer that executes calculation of reservoir computing, and comprises:

• an input device configured to realize calculation of an input layer of the reservoir computing;
• a reservoir device configured to realize calculation of a reservoir layer of the reservoir computing;
• and
• an output device configured to realize calculation of an output layer of the reservoir computing,
• wherein the reservoir device includes an input unit, a nonlinear converter, and an output unit, wherein
• the nonlinear converter and the output unit are connected via a connection path having a delay mechanism that gives a time delay to a signal propagating from the nonlinear converter to the output unit,
• the input unit outputs a first signal generated by superimposing processing results of an input signal output from the input device and a previous input signal output from the output unit to the nonlinear converter,
• the nonlinear converter outputs a second signal obtained by executing nonlinear conversion on the first signal,
• the output unit generates a third signal based on a signal received via the connection path, outputs the third signal to the output unit as a processing result of the previous input signal, and outputs the third signal to an external device, and
• the delay mechanism includes a conversion mechanism that generates a plurality of fourth signals with different delay times using the second signal, generates a fifth signal by superimposing the plurality of fourth signals, and outputs the fifth signal to the output unit.