Same Question, Different Source, Different Answer: Auditing Source-Dependence in Medical Multi-Source RAG

In three linesStudy on source-dependence in multi-source medical RAG systems. Authors demonstrate that the same system can produce different answers depending on retrieved source, revealing a missing evaluation axis in NLP. They introduce TransplantQA (benchmark), HERO-QA (hierarchical retrieval strategy), and a structured judge to audit inter-source relationships using a validated 5-label taxonomy.

Summary generated by Claude — human-verified