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5 starsPython

Lumisift – improves data retention in RAG from ~40% to 87%

by benmora·Apr 12, 2026·1 point·0 comments

AI Analysis

●●SolidBig BrainNiche Gem

Information density scoring beats semantic similarity for scientific RAG retrieval.

Strengths
  • Validated on 1,077 PubMed articles with concrete retention metrics (40% → 87%)
  • Information density detection targets a real RAG failure mode, not just vibes
  • Runs 100% locally with no GPU or API keys required
Weaknesses
  • Narrow audience—mainly useful for scientific/pharma RAG, not general queries
  • Only 1 GitHub star, very early stage with limited real-world testing
Category
Target Audience

Developers building RAG pipelines for scientific or technical domains

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LangChain retrieval · LlamaIndex · Haystack

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