Author

Rajeel Ahmad Ansari

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#natural language process... Preprint Oct 2026

When Does Uncertainty Measure RAG Hallucination Risk?

Uncertainty can measure hallucination risk in retrieval-augmented generation (RAG), but only when retrieved evidence constrains the answer. When evidence is present, unsupported factual claims become less likely; when retrieval coverage is poor, the model can answer from internal knowledge and assign high probability t...

Rajeel Ahmad Ansari, Tautik Agrahari · 0 citations