https://cloudcold.ai/tags/sign-rank-theory/Recent content in Sign-Rank Theory on Lost TempleHugoenSat, 06 Jun 2026 00:00:00 +0000https://cloudcold.ai/posts/2026-06-06-rag-sign-rank/Sat, 06 Jun 2026 00:00:00 +0000https://cloudcold.ai/posts/2026-06-06-rag-sign-rank/Sign-rank 定理形式化证明 Embedding-based RAG 有数学天花板。SOTA 模型在 50K 文档上 recall 不到 20%，PoisonedRAG 用 5 个毒文档 90% 操纵检索。出路：图拓扑和 Schema 结构替代几何邻近。