SIFT precomputes selective attention indices via local and cross-attention invariance to speed RAG prefill 1.71x while keeping accuracy within 1% of full recompute, storing only bit vectors 24,000x smaller than KV tensors.
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2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
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2026 2verdicts
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RISE is a Rust library for inverted indexes that reports up to 2x faster queries than prior libraries on standard datasets while reproducing earlier inverted-index techniques.
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SIFT: Selective-Index For Fast Compute of RAG Prefill by Exploiting Attention Invariance
SIFT precomputes selective attention indices via local and cross-attention invariance to speed RAG prefill 1.71x while keeping accuracy within 1% of full recompute, storing only bit vectors 24,000x smaller than KV tensors.
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RISE: A Rust Library for Inverted Index Search Engines
RISE is a Rust library for inverted indexes that reports up to 2x faster queries than prior libraries on standard datasets while reproducing earlier inverted-index techniques.