Sparse Data Analysis Strategy for Neural Spike Classification

Figure 8

Results obtained by PB-Clus and 2 unsupervised approaches MDA and PCA-EM on channel 2.

(a) Intrinsic structure of the data obtained by PB-Clus on channel 2

(b) Projection of spikes on the first discriminant axis estimated by MDA

(c) Projection of the data obtained by PCA-EM