2 papers
cs.LG2025
Exploration-free Algorithms for Multi-group Mean Estimation
Ziyi Wei, Huaiyang Zhong, Xiaocheng Li
We address the problem of multi-group mean estimation, which seeks to allocate a finite sampling budget across multiple groups to obtain uniformly accurate estimates of their means…
cs.LG2025
What Matters in Data for DPO?
Yu Pan, Zhongze Cai, Guanting Chen +2
Direct Preference Optimization (DPO) has emerged as a simple and effective approach for aligning large language models (LLMs) with human preferences, bypassing the need for a learn…