Semantic Faithfulness and Entropy Production Measures to Tame Your LLM Demons and Manage Hallucinations

arXiv — cs.LGTuesday, December 9, 2025 at 5:00:00 AM
  • A recent study introduces two unsupervised metrics for evaluating the faithfulness of Large Language Models (LLMs), utilizing concepts from information theory and thermodynamics. The approach conceptualizes LLMs as bipartite information engines, where hidden layers function as a Maxwell demon, transforming context into answers through prompts. The proposed semantic faithfulness metric employs Kullback-Leibler divergence to assess the accuracy of Question-Context-Answer triplets.
  • This development is significant as it addresses the complex challenge of ensuring LLMs provide reliable and contextually accurate responses. By quantifying faithfulness through a systematic metric, researchers aim to enhance the trustworthiness of LLM outputs, which is crucial for applications in various domains, including education, healthcare, and content generation.
  • The introduction of these metrics aligns with ongoing discussions about the reliability and fairness of LLMs, particularly in light of issues such as prompt fairness and the potential for hallucinations. As LLMs continue to evolve, the need for robust evaluation frameworks becomes increasingly important, especially in addressing disparities in response quality and ensuring consistency in belief updating and action alignment.
— via World Pulse Now AI Editorial System

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