Research map / Video / Action recognition
Action Shuffle Alternating Learning for Unsupervised Action Segmentation
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Add the action-level embedding learned by action-shuffle SSL (ablation) | ASAL · Breakfast | F1-score: 35.4 -> 37.9 | Helped |
| Add the action-level embedding learned by action-shuffle SSL (ablation) | ASAL · Breakfast | MoF: 47.7 -> 52.5 | Helped |
| Add HMM modeling of action lengths and transitions instead of fixed-transcript Viterbi (ablation) | ActionShuffle · Breakfast | MoF: 44.1 -> 52.5 | Helped |
| Add alternating joint training of the embedding and HMM (ablation) | ASAL · Breakfast | MoF: 46.8 -> 52.5 | Helped |
| Learn a separate action-level embedding for each estimated activity rather than one global embedding (ablation) | ASAL · Breakfast, multiple activities | MoF: 18.3 -> 20.2 | Helped |
| Add the action-level embedding instead of using frame-level temporal embedding (ablation) | ASAL · Breakfast, multiple activities | MoF: 17.9 -> 20.2 | Helped |
| Add HMM modeling and alternating learning instead of fixed-transcript Viterbi (ablation) | ASAL · Breakfast, multiple activities | MoF: 17.2 -> 20.2 | Helped |
| Add alternating joint training rather than keeping the initialized HMM and embedding fixed (ablation) | ASAL · Breakfast, multiple activities | MoF: 18.7 -> 20.2 | Helped |
Closest papers by meaning
- Unsupervised Learning of Action Classes With Continuous Temporal Embedding (CVPR 2019 · similarity 0.91)
- Unsupervised Action Segmentation via Fast Learning of Semantically Consistent Actoms (AAAI 2024 · similarity 0.89)
- FACT: Frame-Action Cross-Attention Temporal Modeling for Efficient Action Segmentation (CVPR 2024 · similarity 0.89)
- Efficient and Effective Weakly-Supervised Action Segmentation via Action-Transition-Aware Boundary Alignment (CVPR 2024 · similarity 0.88)
- Hierarchical Vector Quantization for Unsupervised Action Segmentation (AAAI 2025 · similarity 0.88)
- Temporally Consistent Unbalanced Optimal Transport for Unsupervised Action Segmentation (CVPR 2024 · similarity 0.87)
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