Figure 3:

OTTER recovery error using (top) gradient descent and (bottom) spectral decomposition for artificial networks of size n_p = 100, n_c = 200 and Gaussian noise with variance ${\sigma }_{p/c}^2$ for P and C and ${\sigma }_0^2$ for W₀. Shaded regions correspond to the 0.95 confidence interval and lines to the average over 10 repetitions. The legend applies to both figures.