MedFabric: Gold Evidence Hides the Difficulty of Word-Level Medical Fabrication Detection

arXiv:2605.04180 · cs.CL, cs.AI · Submitted 2026-05-05 · Read on arXiv

cs.CL, cs.AI

Submitted: 2026-05-05

Updated: 2026-08-27

Terminology

• Hallucination — 40× in this paper · explained in 3 episodes
• Benchmark — 10× in this paper · explained in 2 episodes
• Alignment — 9× in this paper · explained in 1 episode
• LLM-as-a-Judge — 9× in this paper · explained in 3 episodes
• Hallucination Detection — 8× in this paper · explained in 2 episodes
• Accuracy — 4× in this paper · explained in 1 episode
• Consistency — 4× in this paper · explained in 3 episodes
• Cosine Similarity — 3× in this paper · explained in 3 episodes
• Fidelity — 3× in this paper · explained in 2 episodes
• Grounding — 3× in this paper · explained in 3 episodes
• Semantic Understanding — 3× in this paper · explained in 2 episodes
• Ablation — 2× in this paper · explained in 1 episode
• F1 Score — 2× in this paper · explained in 3 episodes
• Failure Modes — 2× in this paper · explained in 3 episodes
• Verification — 2× in this paper · explained in 2 episodes
• Ablation study — 1× in this paper · explained in 1 episode
• Agentic Framework — 1× in this paper · explained in 6 episodes
• Continual Learning — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Domain Shift — 1× in this paper · explained in 4 episodes
• Embeddings — 1× in this paper · explained in 2 episodes
• Foundation Model — 1× in this paper · explained in 3 episodes
• Foundation Models — 1× in this paper · explained in 7 episodes
• Generalizability — 1× in this paper · explained in 6 episodes
• Generalization — 1× in this paper · explained in 13 episodes
• In-Context Learning — 1× in this paper · explained in 4 episodes
• Interpretability — 1× in this paper · explained in 15 episodes
• Latent Space — 1× in this paper · explained in 7 episodes
• RAG — 1× in this paper · explained in 3 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Semantic Alignment — 1× in this paper · explained in 3 episodes
• Semantic Drift — 1× in this paper · explained in 3 episodes
• Semantic Similarity — 1× in this paper · explained in 2 episodes
• Structured Reasoning — 1× in this paper · explained in 3 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• The Factual Inconsistency Problem in Abstractive Text Summarization: A Survey
• Retrieving Supporting Evidence for LLMs Generated Answers
• What Disease does this Patient Have? A Large-scale Open Domain Question Answering Dataset from Medical Exams
• LLMs Get Lost In Multi-Turn Conversation
• MedHallu: A Comprehensive Benchmark for Detecting Medical Hallucinations in Large Language Models
• TrustJudge: Inconsistencies of LLM-as-a-Judge and How to Alleviate Them
• Self-Play Preference Optimization for Language Model Alignment
• KnowHalu: Hallucination Detection via Multi-Form Knowledge Based Factual Checking

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