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Large Language Models (LLMs) have demonstrated impressive capabilities on a broad array of NLP tasks, but their tendency to produce hallucinations$\unicode{x2013}$plausible-sounding but factually incorrect content$\unicode{x2013}$poses…

Computation and Language · Computer Science 2025-06-17 Aneesh Vathul , Daniel Lee , Sheryl Chen , Arthi Tasmia

We introduce HallusionBench, a comprehensive benchmark designed for the evaluation of image-context reasoning. This benchmark presents significant challenges to advanced large visual-language models (LVLMs), such as GPT-4V(Vision), Gemini…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Tianrui Guan , Fuxiao Liu , Xiyang Wu , Ruiqi Xian , Zongxia Li , Xiaoyu Liu , Xijun Wang , Lichang Chen , Furong Huang , Yaser Yacoob , Dinesh Manocha , Tianyi Zhou

Large Language Models (LLMs) exhibit impressive reasoning and question-answering capabilities. However, they often produce inaccurate or unreliable content known as hallucinations. This unreliability significantly limits their deployment in…

Machine Learning · Computer Science 2025-09-16 Minh Vu , Brian K. Tran , Syed A. Shah , Geigh Zollicoffer , Nhat Hoang-Xuan , Manish Bhattarai

Emotion understanding is a critical yet challenging task. Recent advances in Multimodal Large Language Models (MLLMs) have significantly enhanced their capabilities in this area. However, MLLMs often suffer from hallucinations, generating…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Bohao Xing , Xin Liu , Guoying Zhao , Chengyu Liu , Xiaolan Fu , Heikki Kälviäinen

In Text-to-SQL generation, large language models (LLMs) have shown strong generalization and adaptability. However, LLMs sometimes generate hallucinations, i.e.,unrealistic or illogical content, which leads to incorrect SQL queries and…

Software Engineering · Computer Science 2025-12-30 Bo Yang , Yinfen Xia , Weisong Sun , Yang Liu

Recent advancements in Multimodal Large Language Models (MLLMs) have extended their capabilities to video understanding. Yet, these models are often plagued by "hallucinations", where irrelevant or nonsensical content is generated,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Yuxuan Wang , Yueqian Wang , Dongyan Zhao , Cihang Xie , Zilong Zheng

Despite numerous attempts at mitigation since the inception of language models, hallucinations remain a persistent problem even in today's frontier LLMs. Why is this? We review existing definitions of hallucination and fold them into a…

Computation and Language · Computer Science 2026-02-04 Emmy Liu , Varun Gangal , Chelsea Zou , Michael Yu , Xiaoqi Huang , Alex Chang , Zhuofu Tao , Karan Singh , Sachin Kumar , Steven Y. Feng

Large Language Models (LLMs) have transformed the Natural Language Processing (NLP) landscape with their remarkable ability to understand and generate human-like text. However, these models are prone to ``hallucinations'' -- outputs that do…

Large Language Models (LLMs) are increasingly used in various contexts, yet remain prone to generating non-factual content, commonly referred to as "hallucinations". The literature categorizes hallucinations into several types, including…

Computation and Language · Computer Science 2025-03-12 Samir Abdaljalil , Hasan Kurban , Erchin Serpedin

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…

Computation and Language · Computer Science 2025-11-25 Vibhor Agarwal , Yiqiao Jin , Mohit Chandra , Munmun De Choudhury , Srijan Kumar , Nishanth Sastry

Large language models (LLMs) are highly effective in various natural language processing (NLP) tasks. However, they are susceptible to producing unreliable conjectures in ambiguous contexts called hallucination. This paper presents a new…

Computation and Language · Computer Science 2024-03-07 Yuhong Sun , Zhangyue Yin , Qipeng Guo , Jiawen Wu , Xipeng Qiu , Hui Zhao

Diffusion large language models (D-LLMs) have emerged as a promising alternative to auto-regressive models due to their iterative refinement capabilities. However, hallucinations remain a critical issue that hinders their reliability. To…

Computation and Language · Computer Science 2026-03-18 Yanyu Qian , Yue Tan , Yixin Liu , Wang Yu , Shirui Pan

Large language models (LLMs) are increasingly deployed in multilingual applications but often generate plausible yet incorrect or misleading outputs, known as hallucinations. While hallucination detection has been studied extensively in…

Computation and Language · Computer Science 2025-12-02 Hrishikesh Terdalkar , Kirtan Bhojani , Aryan Dongare , Omm Aditya Behera

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

Large language models (LLMs) have shown significant potential in scientific disciplines such as biomedicine, particularly in hypothesis generation, where they can analyze vast literature, identify patterns, and suggest research directions.…

Computation and Language · Computer Science 2025-06-10 Guangzhi Xiong , Eric Xie , Corey Williams , Myles Kim , Amir Hassan Shariatmadari , Sikun Guo , Stefan Bekiranov , Aidong Zhang

Artificial Intelligence (AI), particularly Large Language Models (LLMs), is transforming scientific discovery, enabling rapid knowledge generation and hypothesis formulation. However, a critical challenge is hallucination, where LLMs…

Artificial Intelligence · Computer Science 2025-12-30 Bhanu Prakash Vangala , Sajid Mahmud , Pawan Neupane , Joel Selvaraj , Jianlin Cheng

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

Vision Large Language Models (VLLMs) are widely acknowledged to be prone to hallucinations. Existing research addressing this problem has primarily been confined to image inputs, with limited exploration of video-based hallucinations.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Wey Yeh Choong , Yangyang Guo , Mohan Kankanhalli

Recent advancements in large multimodal models (LMMs) have significantly enhanced performance across diverse tasks, with ongoing efforts to further integrate additional modalities such as video and audio. However, most existing LMMs remain…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Sicong Leng , Yun Xing , Zesen Cheng , Yang Zhou , Hang Zhang , Xin Li , Deli Zhao , Shijian Lu , Chunyan Miao , Lidong Bing

This research work delves into the manifestation of hallucination within Large Language Models (LLMs) and its consequential impacts on applications within the domain of mental health. The primary objective is to discern effective strategies…

Computation and Language · Computer Science 2024-10-16 Abdul Muqtadir , Hafiz Syed Muhammad Bilal , Ayesha Yousaf , Hafiz Farooq Ahmed , Jamil Hussain