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Hallucination remains one of the key obstacles to the reliable deployment of large language models (LLMs), particularly in real-world applications. Among various mitigation strategies, Retrieval-Augmented Generation (RAG) and reasoning…

Computation and Language · Computer Science 2025-10-29 Yihan Li , Xiyuan Fu , Ghanshyam Verma , Paul Buitelaar , Mingming Liu

Hallucinations in vision-language models (VLMs) hinder reliability and real-world applicability, usually stemming from distribution shifts between pretraining data and test samples. Existing solutions, such as retraining or fine-tuning on…

Multimedia · Computer Science 2025-06-10 Fei Zhao , Chengcui Zhang , Runlin Zhang , Tianyang Wang , Xi Li

Despite their powerful chat, coding, and reasoning abilities, Large Language Models (LLMs) frequently hallucinate. Conventional wisdom suggests that hallucinations are a consequence of a balance between creativity and factuality, which can…

Large language models (LLMs) demonstrate exceptional capabilities, yet still face the hallucination issue. Typical text generation approaches adopt an auto-regressive generation without deliberate reasoning, which often results in…

Computation and Language · Computer Science 2025-01-06 Xiaoxue Cheng , Junyi Li , Wayne Xin Zhao , Ji-Rong Wen

Visual hallucinations in Large Language Models (LLMs), where the model generates responses that are inconsistent with the visual input, pose a significant challenge to their reliability, particularly in contexts where precise and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Nokimul Hasan Arif , Shadman Rabby , Md Hefzul Hossain Papon , Sabbir Ahmed

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) have demonstrated remarkable capabilities across diverse natural language processing tasks, yet they remain susceptible to hallucinations -- generating content that is factually incorrect, unfaithful to provided…

Computation and Language · Computer Science 2026-05-25 Ahmed Cherif

The recent advancements in Large Language Models (LLMs) have garnered widespread acclaim for their remarkable emerging capabilities. However, the issue of hallucination has parallelly emerged as a by-product, posing significant concerns.…

Multimodal Large Language Models (MLLMs) suffer from cross-modal hallucinations, where one modality inappropriately influences generation about another, leading to fabricated output. This exposes a more fundamental deficiency in…

Artificial Intelligence · Computer Science 2026-01-30 Sangyun Chung , Se Yeon Kim , Youngchae Chee , Yong Man Ro

Hallucinations in large vision-language models (LVLMs) pose significant challenges for real-world applications, as LVLMs may generate responses that appear plausible yet remain inconsistent with the associated visual content. This issue…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Xin Dong , Shichao Dong , Jin Wang , Jing Huang , Li Zhou , Zenghui Sun , Lihua Jing , Jingsong Lan , Xiaoyong Zhu , Bo Zheng

While large language models (LLMs) have demonstrated remarkable capabilities across a range of downstream tasks, a significant concern revolves around their propensity to exhibit hallucinations: LLMs occasionally generate content that…

Computation and Language · Computer Science 2025-09-16 Yue Zhang , Yafu Li , Leyang Cui , Deng Cai , Lemao Liu , Tingchen Fu , Xinting Huang , Enbo Zhao , Yu Zhang , Chen Xu , Yulong Chen , Longyue Wang , Anh Tuan Luu , Wei Bi , Freda Shi , Shuming Shi

Recent advancements in Multimodal Large Language Models (MLLMs) have significantly enhanced the comprehension of multimedia content, bringing together diverse modalities such as text, images, and videos. However, a critical challenge faced…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Li Sun , Liuan Wang , Jun Sun , Takayuki Okatani

Machine Translation (MT) is undergoing a paradigm shift, with systems based on fine-tuned large language models (LLM) becoming increasingly competitive with traditional encoder-decoder models trained specifically for translation tasks.…

Computation and Language · Computer Science 2025-01-30 Zilu Tang , Rajen Chatterjee , Sarthak Garg

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…

Machine Learning · Computer Science 2025-11-17 Elyes Hajji , Aymen Bouguerra , Fabio Arnez

With the large-scale adoption of Large Language Models (LLMs) in various applications, there is a growing reliability concern due to their tendency to generate inaccurate text, i.e. hallucinations. In this work, we propose Cross-Layer…

Computation and Language · Computer Science 2025-09-15 Malavika Suresh , Rahaf Aljundi , Ikechukwu Nkisi-Orji , Nirmalie Wiratunga

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…

Computation and Language · Computer Science 2023-08-15 Neeraj Varshney , Wenlin Yao , Hongming Zhang , Jianshu Chen , Dong Yu

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…

Computation and Language · Computer Science 2024-10-17 Huiwen Wu , Xiaohan Li , Xiaogang Xu , Jiafei Wu , Deyi Zhang , Zhe Liu

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities in understanding and describing visual content, achieving state-of-the-art performance across various vision-language tasks. However, these models often generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Kazi Hasan Ibn Arif , Sajib Acharjee Dip , Khizar Hussain , Lang Zhang , Chris Thomas

Hallucinations in text generation occur when the system produces text that is not grounded in the input. In this work, we tackle the problem of hallucinations in neural chart summarization. Our analysis shows that the target side of chart…

Computation and Language · Computer Science 2023-08-11 Saad Obaid ul Islam , Iza Škrjanec , Ondřej Dušek , Vera Demberg

Query-focused summarization (QFS) aims to provide a summary of a single document/multi documents that can satisfy the information needs of a given query. It is useful for various real-world applications, such as abstractive snippet…

Computation and Language · Computer Science 2026-01-06 Zhichao Xu