TPA attributes next-token probabilities in RAG to seven LLM components and uses POS-tag anomalies to detect hallucinations more comprehensively than prior binary FFN-context conflict views.
• Mechanism:This attribution requires project- ing the target token vector wU,y back into the hidden state space using the layer’s output projection matrixW (l) O ∈R d×d
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TPA: Next Token Probability Attribution for Detecting Hallucinations in RAG
TPA attributes next-token probabilities in RAG to seven LLM components and uses POS-tag anomalies to detect hallucinations more comprehensively than prior binary FFN-context conflict views.