Datasets › Aff-Wild2
Aff-Wild2
Aff-Wild2 is a large-scale in-the-wild database and an extension of the Aff-Wild dataset for affect recognition. It approximately doubles the number of included video frames and the number of subjects; thus, improving the variability of the included behaviors and of the involved persons. It is the only existing in-the-wild database with annotations for all 3 main behaviour tasks.
The Aff-Wild2 is annotated in a per frame basis for the seven basic expressions (i.e., happiness, surprise, anger, disgust, fear, sadness and the neutral state), twelve action units (AUs 1,2,4,6,7,10,12,15,23,24,25, 26) and valence and arousal. In total Aff-Wild2 consists of 564 videos of around 2.8M frames with 554 subjects. Aff-Wild2 displays a big diversity in terms of subjects' ages, ethnicities and nationalities; it has also great variations and diversities of environments.
Sources: 1) Expression, affect, action unit recognition: Aff-wild2, multi-task learning and arcface; 2) The 6th affective behavior analysis in-the-wild (abaw) competition
Benchmarks archive 2025-07-28
All 2 leaderboards whose dataset resolves to this page shown (sort by any header). "First row" is the archive's own first row at snapshot, in the archive's row order; nothing here re-ranks and metric direction is not asserted.
| First row (archive order) | Paper | Code | ||||
|---|---|---|---|---|---|---|
| Facial Expression Recognition (FER) | Aff-Wild2 | GReFEL Accuracy 72.48 | GReFEL: Geometry-Aware Reliable Facial Expression... | — | 2 | Compare |
| Facial Expression Recognition | Aff-Wild2 | ARBEx Accuracy 72.48 | ARBEx: Attentive Feature Extraction with Reliability... | takihasan/arbex | 1 | Compare |
Papers archive 2025-07-28
3 shown of 3 papers with a leaderboard row on this dataset's benchmarks, newest first. The archive's own "papers using this dataset" list was never published, so this is the benchmark-backed subset; the archive's count for this dataset is 142. The Syntology column is from Syntology's graph (read 2026-09-25), stated per sample; it is not part of any archive number.
| Date | Samples run Syntology | |||
|---|---|---|---|---|
| GReFEL: Geometry-Aware Reliable Facial Expression Learning under Bias and Imbalanced Data Distribution | 0 | 1 | 21 Oct 2024 | not harvested |
| ARBEx: Attentive Feature Extraction with Reliability Balancing for Robust Facial Expression Learning | 1 | 1 | 2 May 2023 | not harvested |
| In Search of a Robust Facial Expressions Recognition Model: A Large-Scale Visual Cross-Corpus Study | 1 | 1 | 7 Oct 2022 | not harvested |
Dataset loaders archive 2025-07-28
No loader listed in the archive.
Tasks archive 2025-07-28
License archive 2025-07-28
No licence recorded in the archive. Absence here is not a statement about the dataset's terms.
Modalities archive 2025-07-28
Languages archive 2025-07-28
No language tagged.
Variants archive 2025-07-28
- Aff-Wild2
1 variant name, as the archive lists them.
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