BACKGROUND

Technical Field

The present invention relates to a reservoir computing system.

Related Art

As a learning method that includes handling time-series data such as voice recognition and stock predictions, a reservoir computing system is known that uses a recursive dynamic network structure referred to as a reservoir.

Such a reservoir computing system learns only the weights of an output mechanism, without changing the weights inside the input mechanism and the reservoir after these weights are initialized with random numbers or the like. Accordingly, a physical device that outputs an output signal that is nonlinear with respect to the input signal can be used as the reservoir. However, it is difficult to actually realize a reservoir as a physical device capable of being mass-produced. Furthermore, in order for the reservoir to output a nonlinear output signal that corresponds to various types of input signals, a redundant structure must be included inside the reservoir. Accordingly, it is difficult to configure reservoirs suitable for various learning targets to realize the reservoir computing system.

SUMMARY

According to a first aspect of the present invention, provided is a self-organizing reservoir computing system, comprising an input layer that outputs an input layer signal corresponding to input data; a reservoir layer that includes therein a nonlinear signal path using physical resonance phenomena and is operable to output an inherent reservoir layer signal in response to the input layer signal; and an output layer that outputs output data corresponding to the reservoir layer signal. Also provided is a self-organizing method.

The summary clause does not necessarily describe all necessary features of the embodiments of the present invention. The present invention may also be a sub-combination of the features described above.

