arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2308.11764cs.CLcs.AI

Halo:开源弱大型语言模型中幻觉的估计与减少

Halo: Estimation and Reduction of Hallucinations in Open-Source Weak Large Language Models

University of Pittsburgh(匹兹堡大学);TikTok Inc.(字节跳动TikTok公司)

Mohamed Elaraby, Mengyin Lu, Jacob Dunn, Xueying Zhang, Yu Wang, Shizhu Liu, Pingchuan Tian, Yuping Wang, Yuxuan Wang

AI总结:

本文针对开源弱大型语言模型(如BLOOM 7B)的幻觉问题,提出HaloCheck框架量化幻觉严重程度,并通过知识注入和师生方法减少幻觉,实验证明其有效性。

摘要:

大型语言模型(LLMs)彻底改变了自然语言处理(NLP)。尽管开源LLMs便于研究和实际应用,但参数较少的开源LLMs往往比其更大的同类模型遭受更严重的幻觉。本文专注于测量和减少BLOOM 7B中的幻觉,BLOOM 7B是此类较弱的、可用于研究和商业应用的开源LLMs的代表。我们引入了HaloCheck,这是一个轻量级的黑盒无知识框架,旨在量化LLMs中幻觉的严重程度。此外,我们探索了知识注入和师生方法等技术,以缓解低参数LLMs中的幻觉。我们的实验有效地证明了在这些LLMs的挑战性领域中幻觉的减少。

英文摘要:

Large Language Models (LLMs) have revolutionized Natural Language Processing (NLP). Although convenient for research and practical applications, open-source LLMs with fewer parameters often suffer from severe hallucinations compared to their larger counterparts. This paper focuses on measuring and reducing hallucinations in BLOOM 7B, a representative of such weaker open-source LLMs that are publicly available for research and commercial applications. We introduce HaloCheck, a lightweight BlackBox knowledge-free framework designed to quantify the severity of hallucinations in LLMs. Additionally, we explore techniques like knowledge injection and teacher-student approaches to alleviate hallucinations in low-parameter LLMs. Our experiments effectively demonstrate the reduction of hallucinations in challenging domains for these LLMs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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