Fig. 4: Effect of the network connection on the performance of reservoir computing.

a Schematic illustration of the network of physical nodes connected through propagating spin-wave [left] and physical nodes with no connection [right]. b, c MC and IPC obtained using a connected network with 8 physical nodes [top] and physical nodes with no connection [bottom] calculated by b micromagnetics simulation and c response function method plotted as a function of virtual node distance θ. Nv = 8 virtual nodes are used. d Normalized root mean square error, NRMSE for NARMA10 task obtained by micromagnetics simulation is plotted as a function of θ with a connected network [top] and physical nodes with no connection [bottom]. MC and IPC normalized by the total number of dimensions N = 2NvNp are shown in the right axis.