Nonlinear function operation apparatus, sigmoid function operation apparatus, hyperbolic tangent function operation apparatus, softmax function operation apparatus, and nonlinear function operation methods

Abstract

An aspect of the present invention includes: a nonlinear behavior unit configured to autonomously change an internal physical quantity according to a predetermined nonlinear characteristic; an input converting unit configured to convert an input signal into temporal information using a parameter indicating the predetermined nonlinear characteristic; a controlling unit configured to control the nonlinear behavior unit to start, after initializing the nonlinear behavior unit, a change in the internal physical quantity of the nonlinear behavior unit when the input signal is inputted to the input converting unit, and to stop, after an elapse of the temporal information, the change in the internal physical quantity of the nonlinear behavior unit; an arithmetic operation result output unit configured to output the internal physical quantity at a time when the change in the internal physical quantity is stopped as an arithmetic operation result of a nonlinear function having the predetermined nonlinear characteristic.

Dependencies are inferred from the claim text.