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Large language models (LLMs) have transformed various sectors, including education, finance, and medicine, by enhancing content generation and decision-making processes. However, their integration into the medical field is cautious due to…

Information Retrieval · Computer Science 2025-04-15 Yifan Feng , Hao Hu , Xingliang Hou , Shiquan Liu , Shihui Ying , Shaoyi Du , Han Hu , Yue Gao

Hallucinations in Speech Large Language Models (SpeechLLMs) pose significant risks, yet existing detection methods typically rely on gold-standard outputs that are costly or impractical to obtain. Moreover, hallucination detection methods…

Computation and Language · Computer Science 2026-04-22 Jonas Waldendorf , Bashar Awwad Shiekh Hasan , Evgenii Tsymbalov

Methods to evaluate Large Language Model (LLM) responses and detect inconsistencies, also known as hallucinations, with respect to the provided knowledge, are becoming increasingly important for LLM applications. Current metrics fall short…

Computation and Language · Computer Science 2024-07-16 Hannah Sansford , Nicholas Richardson , Hermina Petric Maretic , Juba Nait Saada

Hallucination, or the generation of incorrect or fabricated information, remains a critical challenge in large language models (LLMs), particularly in high-stake domains such as legal question answering (QA). In order to mitigate the…

Computation and Language · Computer Science 2025-01-14 Yinghao Hu , Leilei Gan , Wenyi Xiao , Kun Kuang , Fei Wu

The widespread adoption and transformative effects of large language models (LLMs) have sparked concerns regarding their capacity to produce inaccurate and fictitious content, referred to as `hallucinations'. Given the potential risks…

Human-Computer Interaction · Computer Science 2024-08-13 Mahjabin Nahar , Haeseung Seo , Eun-Ju Lee , Aiping Xiong , Dongwon Lee

Hallucination detection has become increasingly important for improving the reliability of large language models (LLMs). Recently, hybrid approaches such as HaMI, which combine semantic consistency with internal model states via Multiple…

Computation and Language · Computer Science 2026-05-14 Shota Fujikawa , Issei Sato

Hallucination detection remains a fundamental challenge for the safe and reliable deployment of large language models (LLMs), especially in applications requiring factual accuracy. Existing hallucination benchmarks often operate at the…

Large-scale vision-language models have demonstrated impressive skill in handling tasks that involve both areas. Nevertheless, these models frequently experience significant issues with generating inaccurate information, which is…

Computation and Language · Computer Science 2024-05-07 Huixuan Zhang , Junzhe Zhang , Xiaojun Wan

This paper presents a comparative analysis of hallucination detection systems for AI, focusing on automatic summarization and question answering tasks for Large Language Models (LLMs). We evaluate different hallucination detection systems…

Computation and Language · Computer Science 2024-11-11 Alexander Thomas , Seth Rosen , Vishnu Vettrivel

Quantifying the realism of images remains a challenging problem in the field of artificial intelligence. For example, an image of Albert Einstein holding a smartphone violates common-sense because modern smartphone were invented after…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Elisei Rykov , Kseniia Petrushina , Kseniia Titova , Alexander Panchenko , Vasily Konovalov

Despite substantial advances, large language models (LLMs) continue to exhibit hallucinations, generating plausible yet incorrect responses. In this paper, we highlight a critical yet previously underexplored class of hallucinations driven…

Computation and Language · Computer Science 2025-11-24 Shaowen Wang , Yiqi Dong , Ruinian Chang , Tansheng Zhu , Yuebo Sun , Kaifeng Lyu , Jian Li

The emergence of large language models (LLMs) has significantly advanced the development of natural language processing (NLP), especially in text generation tasks like question answering. However, model hallucinations remain a major…

Computation and Language · Computer Science 2025-12-01 Zhongxin Liu , Zhiwei Wang , Jun Niu , Ying Li , Hongyu Sun , Meng Xu , He Wang , Gaofei Wu , Yuqing Zhang

Large language models (LLMs) are increasingly being adopted as the cognitive core of embodied agents. However, inherited hallucinations, which stem from failures to ground user instructions in the observed physical environment, can lead to…

This work introduces a novel methodology for the automatic detection of hallucinations generated during large language model (LLM) inference. The proposed approach is based on a systematic taxonomy and controlled reproduction of diverse…

Computation and Language · Computer Science 2025-10-08 Maksym Zavhorodnii , Dmytro Dehtiarov , Anna Konovalenko

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…

Computation and Language · Computer Science 2025-08-11 Xiangyan Chen , Yufeng Li , Yujian Gan , Arkaitz Zubiaga , Matthew Purver

Large Language Models (LLMs) frequently exhibit hallucinations, generating content that appears fluent and coherent but is factually incorrect. Such errors undermine trust and hinder their adoption in real-world applications. To address…

Computation and Language · Computer Science 2025-12-03 Weihang Su , Jianming Long , Changyue Wang , Shiyu Lin , Jingyan Xu , Ziyi Ye , Qingyao Ai , Yiqun Liu

This paper introduces KnowHalu, a novel approach for detecting hallucinations in text generated by large language models (LLMs), utilizing step-wise reasoning, multi-formulation query, multi-form knowledge for factual checking, and…

Computation and Language · Computer Science 2024-04-05 Jiawei Zhang , Chejian Xu , Yu Gai , Freddy Lecue , Dawn Song , Bo Li

The hallucination issue is recognized as a fundamental deficiency of large language models (LLMs), especially when applied to fields such as finance, education, and law. Despite the growing concerns, there has been a lack of empirical…

Computation and Language · Computer Science 2023-11-28 Haoqiang Kang , Xiao-Yang Liu

In recent years, large language models (LLMs) have made remarkable advancements, yet hallucination, where models produce inaccurate or non-factual statements, remains a significant challenge for real-world deployment. Although current…

Computation and Language · Computer Science 2025-06-03 Qing Li , Jiahui Geng , Zongxiong Chen , Derui Zhu , Yuxia Wang , Congbo Ma , Chenyang Lyu , Fakhri Karray

As large language models (LLMs) are increasingly deployed in high-stakes domains, detecting hallucinated content$\unicode{x2013}$text that is not grounded in supporting evidence$\unicode{x2013}$has become a critical challenge. Existing…

Computation and Language · Computer Science 2025-05-02 Deanna Emery , Michael Goitia , Freddie Vargus , Iulia Neagu