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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

Language models (LMs) often struggle to pay enough attention to the input context, and generate texts that are unfaithful or contain hallucinations. To mitigate this issue, we present context-aware decoding (CAD), which follows a…

Computation and Language · Computer Science 2023-05-25 Weijia Shi , Xiaochuang Han , Mike Lewis , Yulia Tsvetkov , Luke Zettlemoyer , Scott Wen-tau Yih

Vision-Language Models (VLMs) have made significant strides in static image understanding but continue to face critical hurdles in spatiotemporal reasoning. A major bottleneck is "multi-image reasoning hallucination", where a massive…

Artificial Intelligence · Computer Science 2026-04-14 Xiaoda Yang , Shuai Yang , Can Wang , Jingyang Xue , Menglan Tang , Checheng Yu , Xunzhe Zhou , Sashuai Zhou , Tao Jin , Lixin Yang , Xiangyu Yue , Zhou Zhao

Multimodal Diffusion Large Language Models (MDLLMs) achieve high-concurrency generation through parallel masked decoding, yet the architectures remain prone to multimodal hallucinations. This structural vulnerability stems from an…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Vishal Narnaware , Animesh Gupta , Kevin Zhai , Zhenyi Wang , Mubarak Shah

Despite the significant progress of Multimodal Large Language Models (MLLMs) across diverse tasks, hallucination -- corresponding to the generation of visually inconsistent objects, attributes, or relations -- remains a major obstacle to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Siyu Jiang , Feiyang Chen , Xiaojin Zhang , Kun He

Multi-modal Large Language Models (MLLMs) have recently exhibited impressive general-purpose capabilities by leveraging vision foundation models to encode the core concepts of images into representations. These are then combined with…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Sara Ghazanfari , Alexandre Araujo , Prashanth Krishnamurthy , Siddharth Garg , Farshad Khorrami

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

Multimodal large language models (MLLMs) integrate image features from visual encoders with LLMs, demonstrating advanced comprehension capabilities. However, mainstream MLLMs are solely supervised by the next-token prediction of textual…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Yunnan Wang , Fan Lu , Kecheng Zheng , Ziyuan Huang , Ziqiang Li , Wenjun Zeng , Xin Jin

Large Vision-Language Models (LVLMs) can reason from image-text inputs and perform well in various multimodal tasks. Despite this success, they are affected by language priors and often produce hallucinations. Hallucinations denote…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Xinrong Chen , Xu Chu , Yingmin Qiu , Hengyuan Zhang , Jing Xiong , Shiyu Tang , Shuai Liu , Shaokang Yang , Cheng Yang , Hayden Kwok-Hay So , Ngai Wong

Multimodal Large Language Models (MLLMs) have recently demonstrated impressive capabilities in multimodal understanding, reasoning, and interaction. However, existing MLLMs prevalently suffer from serious hallucination problems, generating…

Computation and Language · Computer Science 2024-03-11 Tianyu Yu , Yuan Yao , Haoye Zhang , Taiwen He , Yifeng Han , Ganqu Cui , Jinyi Hu , Zhiyuan Liu , Hai-Tao Zheng , Maosong Sun , Tat-Seng Chua

Vision-Language Models (VLMs) exhibit systematic bias toward visual illusions, recalling memorized facts rather than perceiving actual visual differences. This paper presents a training-free framework for the 5th DataCV Challenge Task 1 at…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Junli Zha , Jiahui Wang , Xinkai Lu , Jinbo Wang

Video Large Language Models (VideoLLMs) have shown remarkable progress in video understanding. However, these models still struggle to effectively perceive and exploit rich temporal information in videos when responding to user queries.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Chang-Hsun Wu , Kai-Po Chang , Yu-Yang Sheng , Hung-Kai Chung , Kuei-Chun Wang , Yu-Chiang Frank Wang

Large Vision-Language Models (LVLMs) have shown remarkable performance on many visual-language tasks. However, these models still suffer from multimodal hallucination, which means the generation of objects or content that violates the…

Computation and Language · Computer Science 2024-10-01 Fan Yuan , Chi Qin , Xiaogang Xu , Piji Li

Large-scale vision and language representation learning has shown promising improvements on various vision-language tasks. Most existing methods employ a transformer-based multimodal encoder to jointly model visual tokens (region-based…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Junnan Li , Ramprasaath R. Selvaraju , Akhilesh Deepak Gotmare , Shafiq Joty , Caiming Xiong , Steven Hoi

Large vision-language models (LVLMs) exhibit impressive ability to jointly reason over visual and textual inputs. However, they often produce outputs that are linguistically fluent but factually inconsistent with the visual evidence, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Zihu Wang , Boxun Xu , Yuxuan Xia , Peng Li

Existing Large Vision-Language Models (LVLMs) primarily align image features of vision encoder with Large Language Models (LLMs) to leverage their superior text generation capabilities. However, the scale disparity between vision encoder…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Shi Liu , Kecheng Zheng , Wei Chen

Large multimodal models are increasingly used as the reasoning core of embodied agents operating in 3D environments, yet they remain prone to hallucinations that can produce unsafe and ungrounded decisions. Existing inference-time…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Makanjuola Ogunleye , Eman Abdelrahman , Ismini Lourentzou

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

Hallucinations in large vision-language models (LVLMs) are a significant challenge, i.e., generating objects that are not presented in the visual input, which impairs their reliability. Recent studies often attribute hallucinations to a…

Computation and Language · Computer Science 2025-08-13 Yuying Shang , Xinyi Zeng , Yutao Zhu , Xiao Yang , Zhengwei Fang , Jingyuan Zhang , Jiawei Chen , Zinan Liu , Yu Tian

Recent decoding methods improve the factuality of large language models (LLMs) by refining how the next token is selected during generation. These methods typically operate at the token level, leveraging internal representations to suppress…

Computation and Language · Computer Science 2025-09-16 Hongxiang Zhang , Hao Chen , Muhao Chen , Tianyi Zhang