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Beyond Short-Term Snippet: Video Relation Detection With Spatio-Temporal Global Context

CVPR 2020 · Video › Video segmentation and tracking · approach: Weakly supervised video anomaly detection · 70 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use multi-scale sliding windows to generate tracklet proposals of varying durationVideo relation detection · ImageNet-VidVRDR@50: 8.07 -> 11.21Helped
Use multi-scale sliding windows to generate tracklet proposals of varying durationVideo relation detection · VidORR@50: 6.89 -> 8.21Helped
Add spatial and temporal GCNs to proposal-pair features (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.08 -> 17.58Helped
Add spatial GCN (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.08 -> 16.94Helped
Add temporal GCN (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.08 -> 16.91Helped
Use 3 spatial GCN layers rather than 0 layers (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.08 -> 16.94Helped
Increase spatial GCN depth from 3 to 4 layers (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.94 -> 16.63Hurt
Use 2 temporal GCN layers rather than 0 layers (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.08 -> 16.91Helped
Increase temporal GCN depth from 2 to 3 layers (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.91 -> 16.64Hurt
Add I3D features to detection features (ablation)Relationship Classification module · ImageNet-VidVRDR@50: 8.47 -> 9.14Helped
Add relative motion features to detection and I3D features (ablation)Relationship Classification module · ImageNet-VidVRDR@50: 9.14 -> 11.21Helped
Replace spatial-GCN-only proposal encoding with spatial and temporal GCNs (ablation)Pair Proposal module · ImageNet-VidVRDR@50: 16.94 -> 17.58Helped

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