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Classification of micro-expression datasets according to their number of subjects.
| Number of Subjects | Micro-Expression Datasets |
|---|---|
| ≤50 | SAMM, CAS(ME)2, MEVIEW, CASME II, CASME, SMIC-E, SMIC, YorkDDT |
| ≥100 | RAF-DB, AffectNet, Aff-Wild, EmotioNet, FER-Wild, FER-2013, HAPPEI, HUMAINE |
