Unsupervised Learning in an Ensemble of Spiking Neural Networks Mediated by ITDP
Fig 13
Training performances of the expanded STDP/ITDP networks (using random feature selection on the MNIST handwritten digits classification task as in earlier experiments).
Each color represents, red: ITDP final WTA, green: STDP final WTA, blue: gating WTA, grey/black: ensemble WTAs and their average. (A, B) An example of time courses of performances and the final performances from 50 repeated trials using unsupervised gating WTA. The individual trials were sorted by gating WTA performances in ascending order. (C, D) Simulations using the automatic selection of gating WTA. The vertical lines with arrowheads in C indicate where the switching of gating WTA occurs (see text for further details).