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Hallucination remains a key obstacle to the reliable deployment of large language models (LLMs) in real-world question answering tasks. A widely adopted strategy to detect hallucination, known as self-assessment, relies on the model's own…

Artificial Intelligence · Computer Science 2025-06-04 Jinyuan Luo , Zhen Fang , Yixuan Li , Seongheon Park , Ling Chen

Large Language Models (LLMs) possess a remarkable capacity to generate persuasive and intelligible language. However, coherence does not equate to truthfulness, as the responses often contain subtle hallucinations. Existing benchmarks are…

Computation and Language · Computer Science 2026-02-24 Alex Robertson , Huizhi Liang , Mahbub Gani , Rohit Kumar , Srijith Rajamohan

This paper introduces a comprehensive system for detecting hallucinations in large language model (LLM) outputs in enterprise settings. We present a novel taxonomy of LLM responses specific to hallucination in enterprise applications,…

Computation and Language · Computer Science 2025-04-10 Bibek Paudel , Alexander Lyzhov , Preetam Joshi , Puneet Anand

Large Language Models (LLMs) are prone to generating plausible yet incorrect responses, known as hallucinations. Effectively detecting hallucinations is therefore crucial for the safe deployment of LLMs. Recent research has linked…

Computation and Language · Computer Science 2026-03-03 Litian Liu , Reza Pourreza , Sunny Panchal , Apratim Bhattacharyya , Yubing Jian , Yao Qin , Roland Memisevic

Despite the outstanding performance of large language models (LLMs) across various NLP tasks, hallucinations in LLMs--where LLMs generate inaccurate responses--remains as a critical problem as it can be directly connected to a crisis of…

Computation and Language · Computer Science 2025-07-22 Minsuh Joo , Hyunsoo Cho

Large language models (LLMs) have significantly advanced natural language processing tasks, yet they are susceptible to generating inaccurate or unreliable responses, a phenomenon known as hallucination. In critical domains such as health…

Computation and Language · Computer Science 2024-09-20 Sumera Anjum , Hanzhi Zhang , Wenjun Zhou , Eun Jin Paek , Xiaopeng Zhao , Yunhe Feng

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…

Artificial Intelligence · Computer Science 2023-09-12 Li Du , Yequan Wang , Xingrun Xing , Yiqun Ya , Xiang Li , Xin Jiang , Xuezhi Fang

Large language models (LLMs) have garnered significant attention and widespread usage due to their impressive performance in various tasks. However, they are not without their own set of challenges, including issues such as hallucinations,…

Computation and Language · Computer Science 2024-05-08 Duygu Altinok

Tool-augmented large language models (LLMs) are rapidly being integrated into real-world applications. Due to the lack of benchmarks, the community has yet to fully understand the hallucination issues within these models. To address this…

Computation and Language · Computer Science 2024-10-07 Yuxiang Zhang , Jing Chen , Junjie Wang , Yaxin Liu , Cheng Yang , Chufan Shi , Xinyu Zhu , Zihao Lin , Hanwen Wan , Yujiu Yang , Tetsuya Sakai , Tian Feng , Hayato Yamana

Large Language Models (LLMs) have significantly advanced the field of Natural Language Processing (NLP), achieving remarkable performance across diverse tasks and enabling widespread real-world applications. However, LLMs are prone to…

Computation and Language · Computer Science 2024-06-12 Wen Luo , Tianshu Shen , Wei Li , Guangyue Peng , Richeng Xuan , Houfeng Wang , Xi Yang

Large language models (LLMs) have achieved remarkable progress in natural language generation, but remain susceptible to hallucination. In response to growing concerns about hallucinations, several benchmarks have been developed, primarily…

Computation and Language · Computer Science 2026-05-19 Aisha Alansari , Hamzah Luqman

Medical large language models (LLMs), including custom medical GPTs (MedGPTs) and open-source models, are increasingly deployed on web platforms to provide clinical guidance. However, they pose risks of hallucination, policy noncompliance,…

Computation and Language · Computer Science 2026-05-21 Sunday Oyinlola Ogundoyin , Muhammad Ikram , Rahat Masood

Large language models (LMs) are prone to generate factual errors, which are often called hallucinations. In this paper, we introduce a comprehensive taxonomy of hallucinations and argue that hallucinations manifest in diverse forms, each…

Computation and Language · Computer Science 2024-08-14 Abhika Mishra , Akari Asai , Vidhisha Balachandran , Yizhong Wang , Graham Neubig , Yulia Tsvetkov , Hannaneh Hajishirzi

Large language models (LLMs) have achieved impressive performance across a wide range of natural language processing tasks, yet they often produce hallucinated content that undermines factual reliability. To address this challenge, we…

Computation and Language · Computer Science 2026-03-23 Yaxin Zhao , Yu Zhang

The Large Visual Language Models (LVLMs) enhances user interaction and enriches user experience by integrating visual modality on the basis of the Large Language Models (LLMs). It has demonstrated their powerful information processing and…

Artificial Intelligence · Computer Science 2024-10-22 Wei Lan , Wenyi Chen , Qingfeng Chen , Shirui Pan , Huiyu Zhou , Yi Pan

Hallucination is a persistent issue affecting all large language Models (LLMs), particularly within low-resource languages such as Persian. PerHalluEval (Persian Hallucination Evaluation) is the first dynamic hallucination evaluation…

Computation and Language · Computer Science 2025-09-26 Mohammad Hosseini , Kimia Hosseini , Shayan Bali , Zahra Zanjani , Saeedeh Momtazi

Large vision-language models (LVLMs) are prone to hallucinations, where certain contextual cues in an image can trigger the language module to produce overconfident and incorrect reasoning about abnormal or hypothetical objects. While some…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Xiyang Wu , Tianrui Guan , Dianqi Li , Shuaiyi Huang , Xiaoyu Liu , Xijun Wang , Ruiqi Xian , Abhinav Shrivastava , Furong Huang , Jordan Lee Boyd-Graber , Tianyi Zhou , Dinesh Manocha

Detecting hallucinations in large language models (LLMs) is critical for enhancing their reliability and trustworthiness. Most research focuses on hallucinations as deviations from information seen during training. However, the opaque…

Computation and Language · Computer Science 2025-03-26 Fabian Ridder , Malte Schilling

Large Language Models (LLMs) have gained significant popularity for their impressive performance across diverse fields. However, LLMs are prone to hallucinate untruthful or nonsensical outputs that fail to meet user expectations in many…

Computation and Language · Computer Science 2023-11-23 Tianhang Zhang , Lin Qiu , Qipeng Guo , Cheng Deng , Yue Zhang , Zheng Zhang , Chenghu Zhou , Xinbing Wang , Luoyi Fu

Model hallucination is one of the most critical challenges faced by Large Language Models (LLMs), especially in high-stakes code intelligence tasks. As LLMs become increasingly integrated into software engineering tasks, understanding and…

Software Engineering · Computer Science 2025-11-04 Cuiyun Gao , Guodong Fan , Chun Yong Chong , Shizhan Chen , Chao Liu , David Lo , Zibin Zheng , Qing Liao
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