大模型对齐与安全

The Semantic Illusion: Certified Limits of Embedding-Based Hallucination Detection in RAG Systems

语义幻觉：基于嵌入的幻觉检测在RAG系统中的认证极限

Debu Sinha

机构 * Independent Researcher（独立研究者） 纠错

专题命中 幻觉与事实性 ：RLHF(abstract)；safety(abstract)；分类 cs.CL、cs.AI、cs.LG

AI总结 研究揭示了基于嵌入的幻觉检测在RAG系统中存在语义幻觉问题，通过符合预测方法发现真实幻觉检测的挑战，证明需通过推理而非表面语义解决。

Comments 12 pages, 3 figures, 5 tables

SpecCLIP: Aligning and Translating Spectroscopic Measurements for Stars

SpecCLIP：对齐和翻译恒星光谱测量

Xiaosheng Zhao, Yang Huang, Guirong Xue, Xiao Kong, Jifeng Liu, Xiaoyu Tang, Timothy C. Beers, Yuan-Sen Ting, A-Li Luo

机构 * School of Astronomy ； Space Science, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China ； National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People's Republic of China ； Department of Physics \& Astronomy, The Johns Hopkins University, Baltimore, MD 21218, USA ； Zhejiang Laboratory, Hangzhou 311121, People's Republic of China ； Research Center for Astronomical Computing, Zhejiang Laboratory, Hangzhou 311121, People's Republic of China ； Department of Physics ； Astronomy, University of Notre Dame, Notre Dame, IN 46556, USA ； Joint Institute for Nuclear Astrophysics -- Center for the Evolution of the Elements (JINA-CEE), USA ； Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA ； Center for Cosmology ； AstroParticle Physics (CCAPP), The Ohio State University, Columbus, OH 43210, USA 纠错

专题命中 幻觉与事实性 ：alignment(abstract)；分类 cs.AI、cs.LG

AI总结 SpecCLIP通过对比学习和光谱意识解码器提升恒星光谱分析的精度和应用灵活性。

Comments 29 pages, 8 figures, 6 tables. Accepted for publication in ApJ. Comments welcome