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intra-frame entropy-guided sparsification
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intra-frame-entropy-guided-sparsification-4040ec6a·1 events·first seen 22d agoAliases: intra-frame entropy-guided sparsification
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intra-frame token sparsificationFast Adaptive Semantic Entropysparse frame samplingUnstable Features, Reproducible Subspaces: Understanding Seed Dependence in Sparse Autoencoderslambda-scaled structural decodinginter-frame token selectionConditional Scale EntropyEntropy RegularizationSparse Embedding ModelsSparse Autoencoderslow-rank subspace projectionSemantic Entropy
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Good Token Hunting: Token Selection Framework for Visual Geometry Transformers
This paper introduces a two-stage token selection framework to address the quadratic computational scaling of global attention in visual geometry transformers used for multi-view 3D reconstruction. The approach combines diversity-based inter-frame selection (frame-level) with entropy-guided intra-frame sparsification (token-level within frames). Experiments demonstrate over 85% acceleration for 500-image scenes while maintaining or improving baseline reconstruction quality, offering a favorable speed-accuracy trade-off.