Table 6.

Summary of the dissimilarity and similarity measures used.

Measure Type Properties
Grassmannian metric Dissimilarity Compares dictionaries by comparing the subspace spanned by the dictionary elements
Hellinger distance Dissimilarity Compares the underlying distributions of dictionary coefficients; estimated using Moon & Hero III (2014a, 2014b)
EAC-DC based measure Similarity Based on sequentially grown MSTs of the data; requires a base dissimilarity measure as input

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