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Related papers: Instruction-Oriented Preference Alignment for Enha…

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Multimodal Large Language Models (MLLMs) emerge as a unified interface to address a multitude of tasks, ranging from NLP to computer vision. Despite showcasing state-of-the-art results in many benchmarks, a long-standing issue is the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Alberto Compagnoni , Davide Caffagni , Nicholas Moratelli , Lorenzo Baraldi , Marcella Cornia , Rita Cucchiara

Preference alignment has become a crucial component in enhancing the performance of Large Language Models (LLMs), yet its impact in Multimodal Large Language Models (MLLMs) remains comparatively underexplored. Similar to language models,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Elmira Amirloo , Jean-Philippe Fauconnier , Christoph Roesmann , Christian Kerl , Rinu Boney , Yusu Qian , Zirui Wang , Afshin Dehghan , Yinfei Yang , Zhe Gan , Peter Grasch

Instruction-following Vision Large Language Models (VLLMs) have achieved significant progress recently on a variety of tasks. These approaches merge strong pre-trained vision models and large language models (LLMs). Since these components…

Machine Learning · Computer Science 2024-02-20 Yiyang Zhou , Chenhang Cui , Rafael Rafailov , Chelsea Finn , Huaxiu Yao

Multimodal Large Language Models (MLLMs) frequently suffer from hallucination issues, generating information about objects that are not present in input images during vision-language tasks. These hallucinations particularly undermine model…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Dokyoon Yoon , Youngsook Song , Woomyong Park

Large Visual Language Models (LVLMs) have demonstrated impressive capabilities across multiple tasks. However, their trustworthiness is often challenged by hallucinations, which can be attributed to the modality misalignment and the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Jiulong Wu , Zhengliang Shi , Shuaiqiang Wang , Jizhou Huang , Dawei Yin , Lingyong Yan , Min Cao , Min Zhang

Current multimodal Large Language Models (MLLMs) suffer from ``hallucination'', occasionally generating responses that are not grounded in the input images. To tackle this challenge, one promising path is to utilize reinforcement learning…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Mengxi Zhang , Wenhao Wu , Yu Lu , Yuxin Song , Kang Rong , Huanjin Yao , Jianbo Zhao , Fanglong Liu , Yifan Sun , Haocheng Feng , Jingdong Wang

Direct Preference Optimization (DPO) has emerged as an effective approach for mitigating hallucination in Multimodal Large Language Models (MLLMs). Although existing methods have achieved significant progress by utilizing vision-oriented…

Artificial Intelligence · Computer Science 2025-12-23 Wenqi Liu , Xuemeng Song , Jiaxi Li , Yinwei Wei , Na Zheng , Jianhua Yin , Liqiang Nie

Multimodal Large Language Models (MLLMs) are known to hallucinate, which limits their practical applications. Recent works have attempted to apply Direct Preference Optimization (DPO) to enhance the performance of MLLMs, but have shown…

Computation and Language · Computer Science 2024-11-18 Yuhan Fu , Ruobing Xie , Xingwu Sun , Zhanhui Kang , Xirong Li

Human image animation has witnessed significant advancements, yet generating high-fidelity hand motions remains a persistent challenge due to their high degrees of freedom and motion complexity. While reinforcement learning from human…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Yuanzhi Wang , Xuhua Ren , Jiaxiang Cheng , Bing Ma , Kai Yu , Tianxiang Zheng , Qinglin Lu , Zhen Cui

Preference alignment through Direct Preference Optimization (DPO) has demonstrated significant effectiveness in aligning multimodal large language models (MLLMs) with human preferences. However, existing methods focus primarily on language…

Computer Vision and Pattern Recognition · Computer Science 2025-04-23 Jinda Lu , Jinghan Li , Yuan Gao , Junkang Wu , Jiancan Wu , Xiang Wang , Xiangnan He

Direct Preference Optimization (DPO) has shown strong potential for mitigating hallucinations in Multimodal Large Language Models (MLLMs). However, existing multimodal DPO approaches often suffer from overfitting due to the difficulty…

Artificial Intelligence · Computer Science 2026-01-05 Longtian Qiu , Shan Ning , Chuyu Zhang , Jiaxuan Sun , Xuming He

Recent advances in Multi-modal Large Language Models (MLLMs), such as LLaVA-series models, are driven by massive machine-generated instruction-following data tuning. Such automatic instruction collection pipelines, however, inadvertently…

Artificial Intelligence · Computer Science 2025-12-05 Hongzhe Huang , Jiang Liu , Zhewen Yu , Li Cai , Dian Jiao , Wenqiao Zhang , Siliang Tang , Juncheng Li , Hao Jiang , Haoyuan Li , Yueting Zhuang

Hallucination remains a fundamental challenge for Multimodal Large Language Models (MLLMs). While Direct Preference Optimization (DPO) is a key alignment framework, existing approaches often rely heavily on costly external evaluators for…

Machine Learning · Computer Science 2026-02-04 Yuanshuai Li , Yuping Yan , Jirui Han , Fei Ming , Lingjuan Lv , Yaochu Jin

The problem of hallucination and omission, a long-standing problem in machine translation (MT), is more pronounced when a large language model (LLM) is used in MT because an LLM itself is susceptible to these phenomena. In this work, we…

Computation and Language · Computer Science 2024-11-22 Qiyu Wu , Masaaki Nagata , Zhongtao Miao , Yoshimasa Tsuruoka

The emergence of large Vision Language Models (VLMs) has broadened the scope and capabilities of single-modal Large Language Models (LLMs) by integrating visual modalities, thereby unlocking transformative cross-modal applications in a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Shuo Xing , Peiran Li , Yuping Wang , Ruizheng Bai , Yueqi Wang , Chan-Wei Hu , Chengxuan Qian , Huaxiu Yao , Zhengzhong Tu

Multimodal Large Language Models (MLLMs) have significantly improved the performance of various tasks, but continue to suffer from visual hallucinations, a critical issue where generated responses contradict visual evidence. While Direct…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yuanshuai Li , Yuping Yan , Junfeng Tang , Yunxuan Li , Zeqi Zheng , Yaochu Jin

Despite advances in Preference Alignment (PA) for Large Language Models (LLMs), mainstream methods like Reinforcement Learning with Human Feedback (RLHF) face notable challenges. These approaches require high-quality datasets of positive…

Machine Learning · Computer Science 2025-04-10 Xiaohua Feng , Yuyuan Li , Huwei Ji , Jiaming Zhang , Li Zhang , Tianyu Du , Chaochao Chen

Large Vision-Language Models (LVLMs) suffer from serious hallucination problems, where the model-generated responses are inconsistent with the visual inputs. Existing hallucination mitigation methods are mainly based on preference alignment…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Yifan Lu , Ziqi Zhang , Chunfeng Yuan , Jun Gao , Congxuan Zhang , Xiaojuan Qi , Bing Li , Weiming Hu

Despite the significant success of Large Vision-Language models(LVLMs), these models still suffer hallucinations when describing images, generating answers that include non-existent objects. It is reported that these models tend to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Bin Li , Dehong Gao , Yeyuan Wang , Linbo Jin , Shanqing Yu , Xiaoyan Cai , Libin Yang

Aligning language models to human expectations, e.g., being helpful and harmless, has become a pressing challenge for large language models. A typical alignment procedure consists of supervised fine-tuning and preference learning. Most…

Machine Learning · Computer Science 2024-02-27 Tianchi Cai , Xierui Song , Jiyan Jiang , Fei Teng , Jinjie Gu , Guannan Zhang
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