A computing device includes an oscillator network and a controller. The oscillator network includes a plurality of oscillators coupled to each other. The controller is configured to control the oscillator network. Each of the oscillators has a nonlinear energy shift. The controller performs a plurality of sampling operations. Each sampling operation includes a first operation of outputting a signal causing the oscillators to stop oscillating, a second operation of outputting a signal causing the oscillators to oscillate based on a parameter relating to a first probability distribution, and a third operation of outputting a signal to measure, for the oscillators, a phase of an electromagnetic wave generated by an oscillation.