When Metrics Disagree: Automatic Similarity vs. LLM-as-a-Judge for Clinical Dialogue Evaluation

Researchers fine-tuned the Llama 2 7B model using real patient-doctor interaction transcripts to improve medical query responses, but found significant discrepancies between automatic similarity metrics and GPT-4 evaluations. The study highlights the challenges in evaluating AI medical models and recommends human medical expert review for proper validation.