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Junjie Mu

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#natural language process... May 2026

A Wolf in Sheep's Clothing: Targeted Routing Hijacking in Federated RAG

A trust-aware post-routing framework is proposed that reweights clients using returned-evidence feedback, including retrieval relevance, profile consistency, and cross-client agreement, and online experiments show that it suppresses persistent hijacking over recurring queries and transfers to a learned neural router.

Junjie Mu, Qiongxiu Li · 0 citations