Preprint Toward Auditable AI Scientists: A Hypothesis Evolution Protocol for LLM Agents arXiv (Cornell University) 2026 Read Paper Toward Auditable AI Scientists: A Hypothesis Evolution Protocol for LLM Agents Izumi Takahara, Teruyasu Mizoguchi arXiv (Cornell University) 2026 Open access Artificial Intelligence in Healthcare and Education Explainable Artificial Intelligence (XAI) Machine Learning in Materials Science