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Large language models (LLMs) excel at various natural language processing tasks, but their tendency to generate hallucinations undermines their reliability. Existing hallucination detection methods leveraging hidden states predominantly…

计算与语言 · 计算机科学 2025-07-23 Zhenliang Zhang , Xinyu Hu , Huixuan Zhang , Junzhe Zhang , Xiaojun Wan

As Large Language Models (LLMs) continue to advance, they are increasingly relied upon as real-time sources of information by non-expert users. To ensure the factuality of the information they provide, much research has focused on…

计算与语言 · 计算机科学 2025-04-07 Yining Wang , Yuquan Wang , Xi Li , Mi Zhang , Geng Hong , Min Yang

Recently developed large language models have achieved remarkable success in generating fluent and coherent text. However, these models often tend to 'hallucinate' which critically hampers their reliability. In this work, we address this…

计算与语言 · 计算机科学 2023-08-15 Neeraj Varshney , Wenlin Yao , Hongming Zhang , Jianshu Chen , Dong Yu

Large Language Models (LLMs) are widely used in industry but remain prone to hallucinations, limiting their reliability in critical applications. This work addresses hallucination reduction in consumer grievance chatbots built using LLaMA…

The development of Large Language Models (LLMs) has significantly advanced various AI applications in commercial and scientific research fields, such as scientific literature summarization, writing assistance, and knowledge graph…

计算与语言 · 计算机科学 2024-10-17 Huiwen Wu , Xiaohan Li , Xiaogang Xu , Jiafei Wu , Deyi Zhang , Zhe Liu

Hallucinations in Large Language Models (LLMs) represent a critical barrier to their reliable deployment, a vulnerability heavily exacerbated in non-English and resource-constrained contexts. Existing detection approaches that rely on…

计算与语言 · 计算机科学 2026-05-26 Riasad Alvi , Nurul Labib Sayeedi , Md. Faiyaz Abdullah Sayeedi

Large Language Models (LLMs) are known to produce hallucinations - factually incorrect or fabricated information - which poses significant challenges for many Natural Language Processing (NLP) applications, such as dialogue systems. As a…

计算与语言 · 计算机科学 2025-08-11 Xiangyan Chen , Yufeng Li , Yujian Gan , Arkaitz Zubiaga , Matthew Purver

Large language models (LLMs) are starting to complement traditional information seeking mechanisms such as web search. LLM-powered chatbots like ChatGPT are gaining prominence among the general public. AI chatbots are also increasingly…

计算与语言 · 计算机科学 2025-11-25 Vibhor Agarwal , Yiqiao Jin , Mohit Chandra , Munmun De Choudhury , Srijan Kumar , Nishanth Sastry

We evaluate the ability of Large Language Models (LLMs) to discern and express their internal knowledge state, a key factor in countering factual hallucination and ensuring reliable application of LLMs. We observe a robust self-awareness of…

计算与语言 · 计算机科学 2024-01-30 Yuxin Liang , Zhuoyang Song , Hao Wang , Jiaxing Zhang

Although demonstrating superb performance on various NLP tasks, large language models (LLMs) still suffer from the hallucination problem, which threatens the reliability of LLMs. To measure the level of hallucination of LLMs, previous works…

人工智能 · 计算机科学 2023-09-12 Li Du , Yequan Wang , Xingrun Xing , Yiqun Ya , Xiang Li , Xin Jiang , Xuezhi Fang

Large Language Models (LLMs) are increasingly deployed in high-stakes financial domains, yet they suffer from specific, reproducible hallucinations when performing arithmetic operations. Current mitigation strategies often treat the model…

计算与语言 · 计算机科学 2025-12-01 Soham Mirajkar

Large Language Models (LLMs) tend to be unreliable in the factuality of their answers. To address this problem, NLP researchers have proposed a range of techniques to estimate LLM's confidence over facts. However, due to the lack of a…

计算与语言 · 计算机科学 2024-11-28 Matéo Mahaut , Laura Aina , Paula Czarnowska , Momchil Hardalov , Thomas Müller , Lluís Màrquez

Large Language Models (LLMs) often struggle to align their responses with objective facts, resulting in the issue of factual hallucinations, which can be difficult to detect and mislead users without relevant knowledge. Although…

计算与语言 · 计算机科学 2025-10-14 Siyuan Zhang , Yichi Zhang , Yinpeng Dong , Hang Su

Large language models (LLMs) have shown promise for generative and knowledge-intensive tasks including question-answering (QA) tasks. However, the practical deployment still faces challenges, notably the issue of "hallucination", where…

计算与语言 · 计算机科学 2023-10-11 Ziwei Ji , Tiezheng Yu , Yan Xu , Nayeon Lee , Etsuko Ishii , Pascale Fung

Large language models (LLMs) have revolutionized natural language processing, yet their tendency to hallucinate poses serious challenges for reliable deployment. Despite numerous hallucination detection methods, their evaluations often rely…

计算与语言 · 计算机科学 2025-08-15 Denis Janiak , Jakub Binkowski , Albert Sawczyn , Bogdan Gabrys , Ravid Shwartz-Ziv , Tomasz Kajdanowicz

The emergence of large language models (LLMs) is a milestone in generative artificial intelligence, achieving significant success in text comprehension and generation tasks. Despite the tremendous success of LLMs in many downstream tasks,…

计算与语言 · 计算机科学 2024-07-16 He Li , Haoang Chi , Mingyu Liu , Wenjing Yang

Large language models (LLMs) show promise in healthcare, but hallucinations remain a major barrier to clinical use. We present CHECK, a continuous-learning framework that integrates structured clinical databases with a classifier grounded…

Despite rapid advances, Large Vision-Language Models (LVLMs) still suffer from hallucinations, i.e., generating content inconsistent with input or established world knowledge, which correspond to faithfulness and factuality hallucinations,…

计算机视觉与模式识别 · 计算机科学 2025-08-15 Bei Yan , Zhiyuan Chen , Yuecong Min , Jie Zhang , Jiahao Wang , Xiaozhen Wang , Shiguang Shan

Large Language Models (LLMs) have demonstrated remarkable capabilities, revolutionizing the integration of AI in daily life applications. However, they are prone to hallucinations, generating claims that contradict established facts,…

计算与语言 · 计算机科学 2024-06-14 A B M Ashikur Rahman , Saeed Anwar , Muhammad Usman , Ajmal Mian

Large Language Models (LLMs) are increasingly deployed in safety-critical domains, yet remain susceptible to hallucinations. While prior works have proposed confidence representation methods for hallucination detection, most of these…

机器学习 · 计算机科学 2025-11-17 Elyes Hajji , Aymen Bouguerra , Fabio Arnez