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While deep learning models are making fast progress on the task of Natural Language Inference, recent studies have also shown that these models achieve high accuracy by exploiting several dataset biases, and without deep understanding of…

计算与语言 · 计算机科学 2020-05-15 Xiang Zhou , Mohit Bansal

This work studies the problem of large language model (LLM) unlearning, aiming to remove unwanted data influences (e.g., copyrighted or harmful content) while preserving model utility. Despite the increasing demand for unlearning, a…

计算与语言 · 计算机科学 2025-10-21 Chongyu Fan , Jiancheng Liu , Licong Lin , Jinghan Jia , Ruiqi Zhang , Song Mei , Sijia Liu

The sequential recommendation system utilizes historical user interactions to predict preferences. Effectively integrating diverse user behavior patterns with rich multimodal information of items to enhance the accuracy of sequential…

信息检索 · 计算机科学 2025-08-08 Xiaoxi Cui , Weihai Lu , Yu Tong , Yiheng Li , Zhejun Zhao

Large Vision-Language Models (LVLMs) extend large language models with visual understanding, but remain vulnerable to hallucination, where outputs are fluent yet inconsistent with images. Recent studies link this issue to language bias-the…

计算与语言 · 计算机科学 2026-05-26 Yangneng Chen , Jing Li

Omni-modal large language models (omni LLMs) have recently achieved strong performance across audiovisual understanding tasks, yet they remain highly susceptible to cross-modal hallucinations arising from spurious correlations and dominant…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Ashutosh Chaubey , Jiacheng Pang , Mohammad Soleymani

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…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Jiulong Wu , Zhengliang Shi , Shuaiqiang Wang , Jizhou Huang , Dawei Yin , Lingyong Yan , Min Cao , Min Zhang

Reward models are fundamental to Reinforcement Learning from Human Feedback (RLHF), yet real-world datasets are inevitably corrupted by noisy preference. Conventional training objectives tend to overfit these errors, while existing…

机器学习 · 计算机科学 2026-05-08 Licheng Pan , Haochen Yang , Haoxuan Li , Yunsheng Lu , Yongqi Tong , Yinuo Wang , Shijian Wang , Zhixuan Chu , Lei Shen , Yuan Lu , Hao Wang

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…

人工智能 · 计算机科学 2026-01-05 Longtian Qiu , Shan Ning , Chuyu Zhang , Jiaxuan Sun , Xuming He

Multimodal Large Reasoning Models introduce the reasoning paradigm, demonstrating strong capabilities on complex vision-language tasks. However, they still suffer from severe hallucinations. Existing training-based methods typically…

人工智能 · 计算机科学 2026-05-28 Jiawei Kong , Hao Fang , Shunxiang Liao , Jinyu Li , Bin Chen , Hao Wu , Shu-Tao Xia , Min Zhang

Existing open-source multimodal large language models (MLLMs) generally follow a training process involving pre-training and supervised fine-tuning. However, these models suffer from distribution shifts, which limit their multimodal…

计算与语言 · 计算机科学 2025-04-08 Weiyun Wang , Zhe Chen , Wenhai Wang , Yue Cao , Yangzhou Liu , Zhangwei Gao , Jinguo Zhu , Xizhou Zhu , Lewei Lu , Yu Qiao , Jifeng Dai

Although large language models (LLMs) have achieved significant success, their vulnerability to adversarial perturbations, including recent jailbreak attacks, has raised considerable concerns. However, the increasing size of these models…

计算与语言 · 计算机科学 2024-04-19 Jiabao Ji , Bairu Hou , Zhen Zhang , Guanhua Zhang , Wenqi Fan , Qing Li , Yang Zhang , Gaowen Liu , Sijia Liu , Shiyu Chang

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…

机器学习 · 计算机科学 2024-02-20 Yiyang Zhou , Chenhang Cui , Rafael Rafailov , Chelsea Finn , Huaxiu Yao

Recently, large vision-language models (LVLMs) have risen to be a promising approach for multimodal tasks. However, principled hallucination mitigation remains a critical challenge.In this work, we first analyze the data generation process…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Chengzhi Yu , Yifan Xu , Yifan Chen , Wenyi Zhang

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…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Alberto Compagnoni , Davide Caffagni , Nicholas Moratelli , Lorenzo Baraldi , Marcella Cornia , Rita Cucchiara

Implicit feedback, often used to build recommender systems, unavoidably confronts noise due to factors such as misclicks and position bias. Previous studies have attempted to alleviate this by identifying noisy samples based on their…

信息检索 · 计算机科学 2024-09-17 Tianrui Song , Wenshuo Chao , Hao Liu

Multimodal Large Language Models demonstrate strong performance on multimodal benchmarks, yet often exhibit poor robustness when exposed to spurious modality interference, such as irrelevant text in vision understanding, or irrelevant…

机器学习 · 计算机科学 2026-01-30 Rui Cai , Bangzheng Li , Xiaofei Wen , Muhao Chen , Zhe Zhao

Subset selection algorithms are ubiquitous in AI-driven applications, including, online recruiting portals and image search engines, so it is imperative that these tools are not discriminatory on the basis of protected attributes such as…

计算机与社会 · 计算机科学 2021-02-23 Anay Mehrotra , L. Elisa Celis

Large vision-language models (LVLMs) suffer from hallucination, resulting in misalignment between the output textual response and the input visual content. Recent research indicates that the over-reliance on the Large Language Model (LLM)…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Yuxi Xie , Guanzhen Li , Xiao Xu , Min-Yen Kan

Recently, Omni-modal large language models (OLLMs) have sparked a new wave of research, achieving impressive results in tasks such as audio-video understanding and real-time environment perception. However, hallucination issues still…

人工智能 · 计算机科学 2025-09-03 Junzhe Chen , Tianshu Zhang , Shiyu Huang , Yuwei Niu , Chao Sun , Rongzhou Zhang , Guanyu Zhou , Lijie Wen , Xuming Hu

Resource-efficient training optimization techniques are becoming increasingly important as the size of large language models (LLMs) continues to grow. In particular, batch packing is commonly used in pre-training and supervised fine-tuning…

计算与语言 · 计算机科学 2026-03-02 Jaekyung Cho