Table 4.
Difference between the collection of dictionary coefficients pooled from the different Mount Wilson classes as measured by the Hellinger distance. Intraclass distances are reported in the form of mean ± standard deviation and are calculated by randomly splitting the data and then calculating the distance over 100 trials. The size of the dictionaries is r = 6 and 8 for SVD and NMF, respectively. The βγδ group is most dissimilar to the others.
| SVD, Pooled Hellinger |
||||
|---|---|---|---|---|
| α | β | βγ | βγδ | |
| α | 0.0006 ± 0.004 | 0 | 0 | 0.03 |
| β | 0.0005 ± 0.002 | 0.01 | 0.08 | |
| βγ | 0.0003 ± 0.002 | 0.05 | ||
| βγδ | 0.0004 ± 0.002 | |||
| NMF, Pooled Hellinger |
||||
|
α
|
β
|
βγ
|
βγδ
|
|
| α | 0 ± 0 | 0.08 | 0.05 | 0.10 |
| β | 0.00007 ± 0.0004 | 0.03 | 0.12 | |
| βγ | 0.000002 ± 0.00003 | 0.11 | ||
| βγδ | 0.00001 ± 0.0002 | |||
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