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Gradient Forward-Propagation for Large-Scale Temporal Video Modelling

CVPR 2021 · Video › Video segmentation and tracking · approach: Spatio-temporal predictive modeling · 2 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add Skip-Sideways shortcut connections and temporal integrationSideways with VGG8 · HMDB51accuracy (%): 27.3 -> 31.4Helped
Add Skip-Sideways shortcut connections and temporal integrationSideways with VGG8 · UCF101accuracy (%): 62.5 -> 64.5Helped
Add Skip-Sideways shortcut connections and temporal integrationSideways with VGG16 · Kinetics-600accuracy (%): 55.7 -> 61.8Helped
Use Skip-Sideways instead of causal 3D VGG16Causal Kinetics-600 action recognition · Kinetics-600accuracy: $64.2 -> $67.3Helped
Train with Skip-Sideways rather than SidewaysFull-Res future-frame predictor · Kinetics-600 future frame prediction (t+8)L2-Error: 0.107 -> 0.073Helped
Use Skip-Sideways model parallelism on 8 devices rather than GPipe on 8 devicesVGG16 training · Kinetics-600steps/sec: 4.2 -> \textbf{7.2}Helped
Use concatenation rather than addition for shortcut activation fusion (ablation)Skip-Sideways · HMDB51accuracy (%): 29.6 -> 31.4Helped
Use concatenation rather than addition for shortcut activation fusion (ablation)Skip-Sideways · UCF101accuracy (%): 62.8 -> 64.5Helped
Add pseudo-gradient redistribution along shortcut connections (ablation)FA-Skip-Sideways · HMDB51accuracy (%): 29.7 -> 31.4Helped
Add pseudo-gradient redistribution along shortcut connections (ablation)FA-Skip-Sideways · UCF101accuracy (%): 61.9 -> 64.5Helped
Add shortcut connections rather than only increasing model width (ablation)Sideways with VGG8 · HMDB51accuracy (%): 27.8 -> 31.4Helped
Add shortcut connections rather than only increasing model width (ablation)Sideways with VGG8 · UCF101accuracy (%): 64.6 -> 66.0Mixed

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