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Unsupervised neural machine translation (UNMT) has recently achieved remarkable results with only large monolingual corpora in each language. However, the uncertainty of associating target with source sentences makes UNMT theoretically an…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Yuanhang Su , Kai Fan , Nguyen Bach , C. -C. Jay Kuo , Fei Huang

In lossy image compression, models face the challenge of either hallucinating details or generating out-of-distribution samples due to the information bottleneck. This implies that at times, introducing hallucinations is necessary to…

Image and Video Processing · Electrical Eng. & Systems 2025-03-07 Till Aczel , Roger Wattenhofer

Recent Large Vision-Language Models (LVLMs) have introduced a new paradigm for understanding and reasoning about image input through textual responses. Although they have achieved remarkable performance across a range of multi-modal tasks,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Zifu Wan , Ce Zhang , Silong Yong , Martin Q. Ma , Simon Stepputtis , Louis-Philippe Morency , Deva Ramanan , Katia Sycara , Yaqi Xie

Multi-Agent Systems (MAS) powered by Large Language Models have unlocked advanced collaborative reasoning, yet they remain bottlenecked by discrete text communication, which imposes runtime overhead and information quantization loss. While…

Computation and Language · Computer Science 2026-05-29 Xiaoze Liu , Ruowang Zhang , Weichen Yu , Siheng Xiong , Liu He , Feijie Wu , Hoin Jung , Matt Fredrikson , Xiaoqian Wang , Jing Gao

Vision-language pre-training (VLP) methods are blossoming recently, and its crucial goal is to jointly learn visual and textual features via a transformer-based architecture, demonstrating promising improvements on a variety of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Weihan Wang , Zhen Yang , Bin Xu , Juanzi Li , Yankui Sun

Large Vision-Language Models (LVLMs) have demonstrated remarkable capabilities in multimodal task reasoning. However, they often generate responses that appear plausible yet do not accurately reflect the visual content, a phenomenon known…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Jiaqi Wang , Yifei Gao , Jitao Sang

Recent advances in large video-language models have displayed promising outcomes in video comprehension. Current approaches straightforwardly convert video into language tokens and employ large language models for multi-modal tasks.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Fan Ma , Xiaojie Jin , Heng Wang , Yuchen Xian , Jiashi Feng , Yi Yang

Multimodal Large Language Models (MLLMs) have demonstrated remarkable capabilities in vision-language understanding tasks. While these models often produce linguistically coherent output, they often suffer from hallucinations, generating…

Computation and Language · Computer Science 2025-12-09 Sujoy Nath , Arkaprabha Basu , Sharanya Dasgupta , Swagatam Das

Although the problem of hallucinations in neural machine translation (NMT) has received some attention, research on this highly pathological phenomenon lacks solid ground. Previous work has been limited in several ways: it often resorts to…

Computation and Language · Computer Science 2023-03-07 Nuno M. Guerreiro , Elena Voita , André F. T. Martins

Recent development of Large Vision-Language Models (LVLMs) has attracted growing attention within the AI landscape for its practical implementation potential. However, ``hallucination'', or more specifically, the misalignment between…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Hanchao Liu , Wenyuan Xue , Yifei Chen , Dapeng Chen , Xiutian Zhao , Ke Wang , Liping Hou , Rongjun Li , Wei Peng

Inference time scaling drives extended reasoning to enhance the performance of Vision-Language Models (VLMs), thus forming powerful Vision-Language Reasoning Models (VLRMs). However, long reasoning dilutes visual tokens, causing visual…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Xu Chu , Xinrong Chen , Guanyu Wang , Zhijie Tan , Kui Huang , Wenyu Lv , Tong Mo , Weiping Li

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

Multimodal Large Language Models (MLLMs) have made significant progress in bridging the gap between visual and language modalities. However, hallucinations in MLLMs, where the generated text does not align with image content, continue to be…

Artificial Intelligence · Computer Science 2024-08-05 Kohou Wang , Xiang Liu , Zhaoxiang Liu , Kai Wang , Shiguo Lian

Large language models are known to suffer from the hallucination problem in that they are prone to output statements that are false or inconsistent, indicating a lack of knowledge. A proposed solution to this is to provide the model with…

Computation and Language · Computer Science 2021-10-01 Tobias Norlund , Lovisa Hagström , Richard Johansson

Large language models and vision transformers have demonstrated impressive zero-shot capabilities, enabling significant transferability in downstream tasks. The fusion of these models has resulted in multi-modal architectures with enhanced…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Andrés Villa , Juan León Alcázar , Motasem Alfarra , Vladimir Araujo , Alvaro Soto , Bernard Ghanem

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

Neural sequence generation models are known to "hallucinate", by producing outputs that are unrelated to the source text. These hallucinations are potentially harmful, yet it remains unclear in what conditions they arise and how to mitigate…

Computation and Language · Computer Science 2023-02-28 Weijia Xu , Sweta Agrawal , Eleftheria Briakou , Marianna J. Martindale , Marine Carpuat

Despite the rapid progress of multimodal large language models (MLLMs), they have largely overlooked the importance of visual processing. In a simple yet revealing experiment, we interestingly find that language-only models, when provided…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yuting Li , Lai Wei , Kaipeng Zheng , Jingyuan Huang , Guilin Li , Bo Wang , Linghe Kong , Lichao Sun , Weiran Huang

Multimodal Large Language Models (MLLMs) have become a powerful tool for integrating visual and textual information. Despite their exceptional performance on visual understanding benchmarks, measuring their ability to reason abstractly…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Nilay Yilmaz , Maitreya Patel , Yiran Lawrence Luo , Tejas Gokhale , Chitta Baral , Suren Jayasuriya , Yezhou Yang

Video Large Language Models (VideoLLMs) exhibit various types of hallucinations. Existing research has primarily focused on hallucinations involving the presence of events, objects, and scenes in videos, while largely neglecting event…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Zefan Zhang , Kehua Zhu , Shijie Jiang , Hongyuan Lu , Shengkai Sun , Tian Bai