LexiSafe: Offline Safe Reinforcement Learning with Lexicographic Safety-Reward Hierarchy

The paper proposes LexiSafe, a theoretically grounded offline safe reinforcement learning framework that employs lexicographic prioritization to strictly enforce safety constraints while optimizing task performance, offering improved guarantees and empirical results over existing methods for safety-critical cyber-physical systems.

Hsin-Jung Yang, Zhanhong Jiang, Prajwal Koirala, Qisai Liu, Cody Fleming, Soumik Sarkar2026-03-12⚡ eess

Benchmarking Graph Neural Networks in Solving Hard Constraint Satisfaction Problems

This paper introduces new hard benchmarks for Constraint Satisfaction Problems derived from statistical physics to demonstrate that, contrary to some claims, classical heuristics currently outperform Graph Neural Networks on truly difficult instances.

Geri Skenderi, Lorenzo Buffoni, Francesco D'Amico, David Machado, Raffaele Marino, Matteo Negri, Federico Ricci-Tersenghi, Carlo Lucibello, Maria Chiara Angelini2026-03-12🔬 cond-mat

Many AI Analysts, One Dataset: Navigating the Agentic Data Science Multiverse

This paper demonstrates that fully autonomous AI analysts can cheaply replicate the analytic diversity and conflicting conclusions observed in human many-analyst studies, revealing that empirical results are highly sensitive to analytic choices and prompting a new transparency norm requiring multiverse-style reporting and full prompt disclosure for AI-generated science.

Martin Bertran, Riccardo Fogliato, Zhiwei Steven Wu2026-03-12🤖 cs.AI

CARE: Towards Clinical Accountability in Multi-Modal Medical Reasoning with an Evidence-Grounded Agentic Framework

The paper introduces CARE, an evidence-grounded agentic framework that enhances clinical accountability and reasoning accuracy in multi-modal medical AI by decomposing tasks into specialized modules for entity proposal, pixel-level localization, and evidence-based reasoning, thereby outperforming state-of-the-art models on medical VQA benchmarks.

Yuexi Du, Jinglu Wang, Shujie Liu, Nicha C. Dvornek, Yan Lu2026-03-12🤖 cs.AI