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News/Per-Matrix Optimality Is Not Enough: Three-Level Optimization for Low-Rank LLM Compression
arxiv
PublishedSeptember 15, 2026 at 4:00 AM

Per-Matrix Optimality Is Not Enough: Three-Level Optimization for Low-Rank LLM Compression

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arXiv:2609.15838v1 Announce Type: cross Abstract: Per-matrix singular value decomposition (SVD) truncation is Eckart-Young optimal in the whitened Frobenius norm, but errors from independently compressed matrices compound through the block's nonlinear forward pass. Inspired in part by hierarchical v

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