Fig. 2.

Cognitive classification Model - Metric Tensor

Metric tensor for the classification model (sMCI vs pMCI) generated using cognitive data (GDS, ADNI-Mem, ADNI-EF). The colour scale indicates the predictive value for each cell in the metric tensor, where diagonal terms sum to 1. The diagonal terms show strong contribution of the ADNI-Mem score. The positive off diagonals terms indicate a positive interaction between the ADNI-Mem and ADNI-EF scores. The negative off diagonals terms indicate the negative interaction of the GDS score with the ADNI-Mem and ANDNI-EF scores. See also Figure S1 for examples of GMLVQ and possible interpretations (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.).