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Semantic Audio-Visual Navigation

CVPR 2021 · Vision-language and multimodal › Cross-modal learning · approach: Audio-visual source localization · 90 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use SAVi's goal descriptor and multimodal transformer memorySAVi · SoundSpaces Matterport3D, heard soundsSPL: 16.8 -> 24.0Helped
use SAVi's goal descriptor and multimodal transformer memorySAVi · SoundSpaces Matterport3D, unheard soundsSPL: 13.4 -> 17.2Helped
use SAVi with a goal descriptor for navigation despite unheard distractorssemantic audio-visual navigation · Unheard sounds with unheard distractorsSuccess: 4.2 -> 11.8Helped
combine location and category descriptors rather than use category alone (ablation)SAVi · Unheard soundsSuccess: 20.5 -> 24.8Helped
combine location and category descriptors rather than use location alone (ablation)SAVi · Unheard soundsSuccess: 23.9 -> 24.8Helped
add temporal aggregation of current and previous goal estimates (ablation)SAVi · Unheard soundsSPL: 14.3 -> 17.2Helped
replace the transformer policy with an RNN+MLP (ablation)SAVi · Unheard soundsSPL: 17.2 -> 15.4Hurt
train the location predictor on-policy rather than off-policy (ablation)SAVi · Unheard soundsSuccess: 4.8% success rateHelped
provide the true goal category and location instead of predicted descriptors (ablation)SAVi · Unheard soundsSPL: 24% -> 65%Helped
replace the predicted category with a random category label (ablation)SAVi · Unheard soundsSuccessHurt

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