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Large Vision-Language Models (LVLMs) exhibit impressive multimodal reasoning capabilities but remain highly susceptible to object hallucination, where models generate responses that are not factually aligned with the visual content. Recent…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Younan Zhu , Linwei Tao , Minjing Dong , Chang Xu

Large Vision-Language Models (LVLMs) are susceptible to object hallucinations, an issue in which their generated text contains non-existent objects, greatly limiting their reliability and practicality. Current approaches often rely on the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Ailin Deng , Zhirui Chen , Bryan Hooi

The inference process for large language models is slow and memory-intensive, with one of the most critical bottlenecks being excessive Key-Value (KV) cache accesses. This paper introduces "Double Sparsity," a novel post-training sparse…

Machine Learning · Computer Science 2024-08-20 Shuo Yang , Ying Sheng , Joseph E. Gonzalez , Ion Stoica , Lianmin Zheng

Large language models (LLMs) have driven significant advancements across diverse NLP tasks, with long-context models gaining prominence for handling extended inputs. However, the expanding key-value (KV) cache size required by Transformer…

Machine Learning · Computer Science 2024-10-08 Lijie Yang , Zhihao Zhang , Zhuofu Chen , Zikun Li , Zhihao Jia

Large reasoning models achieve strong performance through test-time scaling, but this incurs substantial computational overhead due to long decoding from short prompts. While sparse attention can reduce latency and memory usage, existing…

Computation and Language · Computer Science 2026-04-29 Lijie Yang , Zhihao Zhang , Arti Jain , Shijie Cao , Baihong Yuan , Yiwei Chen , Zhihao Jia , Ravi Netravali

Prompt-based verification is widely used to mitigate hallucinations in large vision-language models (LVLMs), yet when it helps remains poorly understood. We systematically study verification prompting across two representative LVLM…

Computation and Language · Computer Science 2026-05-28 Yuang Huang , Yafeng Zhang , Yu Zilan

Hallucination has been a major problem for large language models and remains a critical challenge when it comes to multimodality in which vision-language models (VLMs) have to deal with not just textual but also visual inputs. Despite rapid…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Zhecan Wang , Garrett Bingham , Adams Yu , Quoc Le , Thang Luong , Golnaz Ghiasi

Recently, Vision Large Language Models (VLLMs) integrated with vision encoders have shown promising performance in vision understanding. The key of VLLMs is to encode visual content into sequences of visual tokens, enabling VLLMs to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Zhuqiang Lu , Zhenfei Yin , Mengwei He , Zhihui Wang , Zicheng Liu , Zhiyong Wang , Kun Hu

Multimodal Large Language Models (MLLMs) have made significant strides by combining visual recognition and language understanding to generate content that is both coherent and contextually accurate. However, MLLMs continue to struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Haoran Zhou , Zihan Zhang , Hao Chen

Vision-Language Models (VLMs) have shown solid ability for multimodal understanding of both visual and language contexts. However, existing VLMs often face severe challenges of hallucinations, meaning that VLMs tend to generate responses…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Jinjin Cao , Zhiyang Chen , Zijun Wang , Liyuan Ma , Weijian Luo , Guojun Qi

Although Large Vision-Language Models (LVLMs) have demonstrated remarkable performance on downstream tasks, they frequently produce contents that deviate from visual information, leading to object hallucination. To tackle this, recent works…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Qiming Li , Zekai Ye , Xiaocheng Feng , Weihong Zhong , Libo Qin , Ruihan Chen , Lei Huang , Baohang Li , Kui Jiang , Yaowei Wang , Ting Liu , Bing Qin

Sparse attention mechanisms aim to reduce computational overhead with minimal accuracy loss by selectively processing salient tokens. Despite their effectiveness, most methods merely exploit a model's inherent sparsity and thus plateau at…

Machine Learning · Computer Science 2026-03-02 Feng Chen , Yefei He , Lequan Lin , Chenhui Gou , Jing Liu , Bohan Zhuang , Qi Wu

Recently, the use of large language models (LLMs) for Verilog code generation has attracted great research interest to enable hardware design automation. However, previous works have shown a gap between the ability of LLMs and the practical…

Programming Languages · Computer Science 2025-01-10 Yiyao Yang , Fu Teng , Pengju Liu , Mengnan Qi , Chenyang Lv , Ji Li , Xuhong Zhang , Zhezhi He

Large Vision-Language Models (LVLMs) achieve strong performance on single-image tasks, but their performance declines when multiple images are provided as input. One major reason is the cross-image information leakage, where the model…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Minyoung Lee , Yeji Park , Dongjun Hwang , Yejin Kim , Seong Joon Oh , Junsuk Choe

Hallucinations in Large Language Models (LLMs) pose a major barrier to their reliable use in critical decision-making. Although existing hallucination detection methods have improved accuracy, they still struggle with disentangling semantic…

Computation and Language · Computer Science 2026-04-02 Junjie Hu , Gang Tu , ShengYu Cheng , Jinxin Li , Jinting Wang , Rui Chen , Zhilong Zhou , Dongbo Shan

Human visual recognition is a sparse process, where only a few salient visual cues are attended to rather than traversing every detail uniformly. However, most current vision networks follow a dense paradigm, processing every single visual…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Ziteng Gao , Zhan Tong , Limin Wang , Mike Zheng Shou

Vision-Language Models (VLMs) have advanced multi-modal tasks like image captioning, visual question answering, and reasoning. However, they often generate hallucinated outputs inconsistent with the visual context or prompt, limiting…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Shawn Li , Jiashu Qu , Yuxiao Zhou , Yuehan Qin , Tiankai Yang , Yue Zhao

The computational expense of redundant vision tokens in Large Vision-Language Models (LVLMs) has led many existing methods to compress them via a vision projector. However, this compression may lose visual information that is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Ze Feng , Jiang-jiang Liu , Sen Yang , Lingyu Xiao , Zhibin Quan , Zhenhua Feng , Wankou Yang , Jingdong Wang

Recent advancements in Multimodal Large Language Models (MLLMs) have enabled them to effectively integrate vision and language, addressing a variety of downstream tasks. However, despite their significant success, these models still exhibit…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Zixian Gao , Chao Yang , Zhanhui Zhou , Xing Xu , Chaochao Lu

Multimodal Large Language Models (MLLMs) excel in numerous vision-language tasks yet suffer from hallucinations, producing content inconsistent with input visuals, that undermine reliability in precision-sensitive domains. This issue stems…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Nan Sun , Zhenyu Zhang , Xixun Lin , Kun Wang , Yanmin Shang , Naibin Gu , Shuohuan Wang , Yu Sun , Hua Wu , Haifeng Wang , Yanan Cao