Automatic Recognition of Spontaneous and Subtle Facial Expressions http://127.0.0.1/xmlui/handle/123456789/10171 2026-04-18T20:27:55Z 2026-04-18T20:27:55Z Automatic Recognition of Spontaneous and Subtle Facial Expressions Happy, S L http://127.0.0.1/xmlui/handle/123456789/10172 2021-11-18T06:53:00Z 2018-07-01T00:00:00Z Automatic Recognition of Spontaneous and Subtle Facial Expressions Happy, S L 2018-07-01T00:00:00Z