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MIST: Multiple Instance Self-Training Framework for Video Anomaly Detection

CVPR 2021 · Video › Video segmentation and tracking · approach: Weakly supervised video anomaly detection · 349 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use sparse continuous sampling rather than uniform sampling (ablation)MIST MIL pseudo-label generator · UCF-CrimeAUC (%): 74.29 -> 75.51; +1.22Helped
Use sparse continuous sampling rather than uniform sampling (ablation)MIST MIL pseudo-label generator · UCF-CrimeAUC (%): 78.72 -> 79.37; +0.65Helped
Use sparse continuous sampling rather than uniform sampling (ablation)MIST MIL pseudo-label generator · ShanghaiTechAUC (%): 83.68 -> 86.61; +2.93Helped
Use sparse continuous sampling rather than uniform sampling (ablation)MIST MIL pseudo-label generator · ShanghaiTechAUC (%): 83.10 -> 89.15; +6.05Helped
Add generated pseudo labels to encoder fine-tuning (ablation)MIST with I3D · UCF-CrimeAUC (%): 73.33 -> 82.30; 8.17%Helped
Add the self-guided attention module (ablation)MIST with I3D · UCF-CrimeAUC (%): 80.28 -> 82.30; 2%Helped
Add the guided-classification head H_g (ablation)MIST with I3D · UCF-CrimeAUC (%): 81.97 -> 82.30; more than 2%Helped
Use MIST fine-tuned I3D features instead of pretrained I3D featuresAR-Net · UCF-CrimeAUC (%): 78.96 -> 82.62Helped
Use MIST fine-tuned I3D features instead of pretrained I3D featuresAR-Net · ShanghaiTechAUC (%): 85.38 -> 92.27Helped

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