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Look Before You Speak: Visually Contextualized Utterances

CVPR 2021 · Video › Video-language understanding · approach: Video LLMs with fine-grained understanding · 54 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add visual input to the text-only modelFuture utterance prediction · HowToFUPR@1: 60.90 -> 68.34Helped
Use a two-stream CoMVT rather than the single-stream multimodal baselineFuture utterance prediction · HowToFUPR@1: 62.73 -> 63.35Helped
Add BERT pretraining (ablation)CoMVT with scene features · HowToFUPR@1: 63.35 -> 65.64Helped
Add the MLM loss (ablation)CoMVT with scene features and BERT pretraining · HowToFUPR@1: 65.64 -> 67.13Helped
Add combined object and scene features (ablation)CoMVT with BERT pretraining and MLM · HowToFUPR@1: 67.13 -> 67.79Helped
Increase CoTRM blocks from S=2 to S=4 with combined features and MLM (ablation)CoMVT · HowToFUPR@1: 67.79 -> 68.34Helped
Increase CoTRM blocks from S=2 to S=4 without MLM or object features (ablation)CoMVT with scene features only · HowToFUPR@1: 65.64 -> 61.05Hurt
Add compact feature set extraction (ablation)CoMVT, S=2 · HowToFUPR@1: 67.83 -> 67.79No clear effect
Add compact feature set extraction (ablation)CoMVT, S=4 · HowToFUPGflops: 12.7 -> 7.7 (-39.3%)Helped
Pretrain CoMVT on HowToFUP (ablation)Future utterance prediction model · COIN-FUPR@1: 39.11 -> 70.92Helped
Pretrain CoMVT on HowToFUP (ablation)Next step prediction · COIN-NSPR@1: 33.33 -> 37.46Helped
Pretrain CoMVT on HowToFUP (ablation)Next step prediction · CrossTask-NSPR@1: 33.73 -> 42.12Helped

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