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Multimodal learning integrates complementary information from different modalities such as image, text, and audio to improve model performance, but its success relies on large-scale labeled data, which is costly to obtain. Active learning…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Yuqiao Zeng , Xu Wang , Tengfei Liang , Yiqing Hao , Yi Jin , Hui Yu

Multimodal learning faces two major challenges: modality imbalance and data noise, which significantly affect the robustness and generalization ability of models. Existing methods achieve modality balance by suppressing dominant modalities,…

Multimedia · Computer Science 2025-11-17 Zijing Xu , Yunfeng Kou , Kunming Wu , Hong Liu

Recent Multimodal Large Language Models (MLLMs) have significantly advanced e-commerce product understanding. However, they still face three challenges: (i) the modality imbalance induced by modality mixed training; (ii) underutilization of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Zhanheng Nie , Chenghan Fu , Daoze Zhang , Junxian Wu , Wanxian Guan , Pengjie Wang , Jian Xu , Bo Zheng

Despite the recent success of Multimodal Foundation Models (FMs), their reliance on massive paired datasets limits their applicability in low-data and rare-scenario settings where aligned data is scarce and expensive. A key bottleneck is…

Machine Learning · Computer Science 2026-05-14 Truong Pham , Anay Majee , Rishabh Iyer

Multimodal semantic segmentation benefits remote sensing analysis by combining complementary information from different sensor modalities. In real-world remote sensing applications, one or more modalities may be unavailable due to sensor…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Irem Ulku , Ö. Özgür Tanrıöver , Erdem Akagündüz

Predictive models trained on imbalanced data tend to produce biased results. This problem is exacerbated when there is not just one output label, but a set of them. This is the case for multilabel learning (MLL) algorithms used to classify…

Machine Learning · Computer Science 2025-01-22 Francisco Charte , Miguel Ángel Dávila , María Dolores Pérez-Godoy , María José del Jesus

Many real-world applications reveal difficulties in learning classifiers from imbalanced data. The rising big data era has been witnessing more classification tasks with large-scale but extremely imbalance and low-quality datasets. Most of…

Machine Learning · Computer Science 2020-10-20 Zhining Liu , Wei Cao , Zhifeng Gao , Jiang Bian , Hechang Chen , Yi Chang , Tie-Yan Liu

Active learning aims to optimize the dataset annotation process when resources are constrained. Most existing methods are designed for balanced datasets. Their practical applicability is limited by the fact that a majority of real-life…

Machine Learning · Computer Science 2022-02-02 Umang Aggarwal , Adrian Popescu , Céline Hudelot

Multi-prompt learning methods have emerged as an effective approach for facilitating the rapid adaptation of vision-language models to downstream tasks with limited resources. Existing multi-prompt learning methods primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Fei Song , Yi Li , Jiangmeng Li , Rui Wang , Changwen Zheng , Fanjiang Xu , Hui Xiong

Fundamental machine learning theory shows that different samples contribute unequally both in learning and testing processes. Contemporary studies on DNN imply that such sample difference is rooted on the distribution of intrinsic pattern…

Machine Learning · Computer Science 2021-08-19 Chi Zhang , Xiaoning Ma , Yu Liu , Le Wang , Yuanqi Su , Yuehu Liu

Multi-task learning (MTL) has emerged as a promising approach for deploying deep learning models in real-life applications. Recent studies have proposed optimization-based learning paradigms to establish task-shared representations in MTL.…

Machine Learning · Computer Science 2025-03-12 Zhipeng Zhou , Liu Liu , Peilin Zhao , Wei Gong

The strength of multimodal learning lies in its ability to integrate information from various sources, providing rich and comprehensive insights. However, in real-world scenarios, multi-modal systems often face the challenge of dynamic…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Xiyuan Gao , Bing Cao , Pengfei Zhu , Nannan Wang , Qinghua Hu

Traditional resampling methods for handling class imbalance typically uses fixed distributions, undersampling the majority or oversampling the minority. These static strategies ignore changes in class-wise learning difficulty, which can…

Machine Learning · Computer Science 2026-02-17 Arjun Basandrai , Shourya Jain , K. Ilanthenral

Multimodal learning has developed very fast in recent years. However, during the multimodal training process, the model tends to rely on only one modality based on which it could learn faster, thus leading to inadequate use of other…

Machine Learning · Computer Science 2024-11-05 Zirun Guo , Tao Jin , Jingyuan Chen , Zhou Zhao

Modern deep models are trained on large real-world datasets, where data quality varies and redundancy is common. Data-centric approaches such as dataset pruning have shown promise in improving training efficiency and model performance.…

Machine Learning · Computer Science 2025-07-18 Suorong Yang , Peijia Li , Yujie Liu , Zhiming Xu , Peng Ye , Wanli Ouyang , Furao Shen , Dongzhan Zhou

A number of classification problems need to deal with data imbalance between classes. Often it is desired to have a high recall on the minority class while maintaining a high precision on the majority class. In this paper, we review a…

Applications · Statistics 2016-08-23 Ajinkya More

Multimodal learning has mainly focused on learning large models on, and fusing feature representations from, different modalities for better performances on downstream tasks. In this work, we take a detour from this trend and study the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Yifeng Shi , Marc Niethammer

Long-tailed distributions in class-imbalanced data present a fundamental challenge for deep learning models, which tend to be biased toward majority classes. While recent methods for long-tailed recognition have mitigated this issue, they…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Heegeon Yoon , Heeyoung Kim

Multimodal Emotion Recognition (MER) often encounters incomplete multimodality in practical applications due to sensor failures or privacy protection requirements. While existing methods attempt to address various incomplete multimodal…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Xinkui Zhao , Jinsong Shu , Yangyang Wu , Guanjie Cheng , Zihe Liu , Naibo Wang , Shuiguang Deng , Zhongle Xie , Jianwei Yin

The goal of Continual Learning (CL) task is to continuously learn multiple new tasks sequentially while achieving a balance between the plasticity and stability of new and old knowledge. This paper analyzes that this insufficiency arises…

Machine Learning · Computer Science 2024-05-28 Hanxi Xiao , Fan Lyu