Author name: Mehryar Mohri, Yutao Zhong

arXiv:2604.27733v1 Announce Type: new
Abstract: Preference learning has become the foundation of aligning Large Language Models (LLMs) with human intent. Popular methods, such as Direct Preference Optimization (DPO), minimize surrogate losses as proxi…

arXiv:2604.27742v1 Announce Type: new
Abstract: The choice of loss function in classification involves a fundamental trade-off: smooth losses (like Cross-Entropy) enable fast optimization rates but yield slow square-root consistency bounds, while piec…