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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