Reservoir Computing using High Order Synchronization of Coupled Oscillators
This work presents a novel computing concept for reservoir computing that could be applied to oscillators of diverse nature, though it appears incremental as it builds on existing oscillator-based methods.
The authors tackled the problem of implementing reservoir computing by using high-order synchronization of coupled oscillators, achieving the ability to simulate XOR operations with a small number of oscillators and significant non-linearity.
We propose a concept for reservoir computing on oscillators using the high-order synchronization effect. The reservoir output is presented in the form of oscillator synchronization metrics: fractional high-order synchronization value and synchronization efficiency, expressed as a percentage. Using two coupled relaxation oscillators built on VO2 switches, we created an oscillator reservoir that allows simulating the XOR operation. The reservoir can operate as with static input data (power currents, coupling forces), as with dynamic data in the form of spike sequences. Having a small number of oscillators and significant non-linearity, the reservoir expresses a wide range of dynamic states. The proposed computing concept can be implemented on oscillators of diverse nature.