Fig. 5.

Comparing the architectures shown in Fig. 4. a,b ICO-learning d-f Acting TD. Switch-off conditions (x ₀ = 0 or δ = 0) as denoted in a, c, d, f. Learning rate was μ = 0.001 in d and f. The parameters of the band-pass were set to a = 0.3, b = 0.33, and σ = 0.03, throughout. The weight change for TD-Rephrased d is plotted for different values of α and the inset shows an enlargement around the origin