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Two-Stream Networks for Weakly-Supervised Temporal Action Localization With Semantic-Aware Mechanisms
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| add semantic-aware dictionary loss (Lsmt) to the two-stream model (ablation) | two-stream WS-TAL model · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 43.0 to 46.2 (+3.2) | Helped |
| add semantic-aware dictionary loss (Lsmt) to the two-stream model (ablation) | two-stream WS-TAL model · ActivityNet-1.3 | mAP@0.5:0.05:0.95 Avg (%): 25.0 to 26.3 (+1.3) | Helped |
| add guide loss (Lgui) (ablation) | two-stream WS-TAL model · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 41.0 to 43.0 (+2.0) | Helped |
| add context classification loss (Lct_cls) (ablation) | two-stream WS-TAL model · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 37.5 to 41.0 (+3.5) | Helped |
| add context classification loss (Lct_cls) (ablation) | two-stream WS-TAL model · ActivityNet-1.3 | mAP@0.5:0.05:0.95 Avg (%): 23.9 to 24.6 (+0.7) | Helped |
| add background classification loss (Lbg_cls) (ablation) | two-stream WS-TAL model · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 36.3 to 37.5 (+1.2) | Helped |
| add background classification loss (Lbg_cls) (ablation) | two-stream WS-TAL model · ActivityNet-1.3 | mAP@0.5:0.05:0.95 Avg (%): 23.5 to 23.9 (+0.4) | Helped |
| replace two-stream with attention-only branch (ablation) | two-stream WS-TAL model · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 41.0 to 30.8 (-10.2) | Hurt |
| replace two-stream with MIL-only branch (ablation) | two-stream WS-TAL model · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 41.0 to 36.0 (-5.0) | Hurt |
| replace two-stream with attention-only branch (ablation) | two-stream WS-TAL model · ActivityNet-1.3 | mAP@0.5:0.05:0.95 Avg (%): 24.6 to 15.6 (-9.0) | Hurt |
| replace two-stream with MIL-only branch (ablation) | two-stream WS-TAL model · ActivityNet-1.3 | mAP@0.5:0.05:0.95 Avg (%): 24.6 to 22.7 (-1.9) | Hurt |
| two-stream attention+MIL model with semantic-aware loss vs prior SOTA | WS-TAL on THUMOS-14 · THUMOS-14 | mAP@0.1:0.1:0.7 Avg (%): 46.2 vs 45.1 (ASM-Loc), +1.1 | Helped |
Closest papers by meaning
- Weakly-Supervised Temporal Action Localization by Inferring Salient Snippet-Feature (AAAI 2024 · similarity 0.93)
- Weakly Supervised Temporal Action Localization via Representative Snippet Knowledge Propagation (CVPR 2022 · similarity 0.93)
- Completeness Modeling and Context Separation for Weakly Supervised Temporal Action Localization (CVPR 2019 · similarity 0.92)
- A Hybrid Attention Mechanism for Weakly-Supervised Temporal Action Localization (AAAI 2021 · similarity 0.92)
- ACSNet: Action-Context Separation Network for Weakly Supervised Temporal Action Localization (AAAI 2021 · similarity 0.92)
- Similar Modality Enhancement and Action Consistency Learning for Weakly Supervised Temporal Action Localization (AAAI 2025 · similarity 0.90)
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