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Multispectral pedestrian detection has been shown to be effective in improving performance within complex illumination scenarios. However, prevalent double-stream networks in multispectral detection employ two separate feature extraction…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Zizhao Chen , Yeqiang Qian , Xiaoxiao Yang , Chunxiang Wang , Ming Yang

Federated Learning (FL) offers a privacy-preserving framework for training audio classification (AC) models across decentralized clients without sharing raw data. However, Federated Audio Classification (FedAC) faces three major challenges:…

Sound · Computer Science 2025-08-05 Jun Bai , Rajib Rana , Di Wu , Youyang Qu , Xiaohui Tao , Ji Zhang , Carlos Busso , Shivakumara Palaiahnakote

Multimodal federated learning (MFL) aims to enrich model training in FL settings where clients are collecting measurements across multiple modalities. However, key challenges to MFL remain unaddressed, particularly in heterogeneous network…

Machine Learning · Computer Science 2026-03-12 Liangqi Yuan , Dong-Jun Han , Su Wang , Devesh Upadhyay , Christopher G. Brinton

Modality representation learning is an important problem for multimodal sentiment analysis (MSA), since the highly distinguishable representations can contribute to improving the analysis effect. Previous works of MSA have usually focused…

Multimedia · Computer Science 2023-01-31 Peipei Liu , Xin Zheng , Hong Li , Jie Liu , Yimo Ren , Hongsong Zhu , Limin Sun

Federated Learning (FL) is a pioneering approach in distributed machine learning, enabling collaborative model training across multiple clients while retaining data privacy. However, the inherent heterogeneity due to imbalanced resource…

Machine Learning · Computer Science 2024-11-18 Suraj Racha , Shubh Gupta , Humaira Firdowse , Aastik Solanki , Ganesh Ramakrishnan , Kshitij S. Jadhav

Recent studies have demonstrated that vision models can effectively learn multimodal audio-image representations when paired. However, the challenge of enabling deep models to learn representations from unpaired modalities remains…

Sound · Computer Science 2025-04-15 Yasar Abbas Ur Rehman , Kin Wai Lau , Yuyang Xie , Ma Lan , JiaJun Shen

Deepfakes are synthetic media generated using deep generative algorithms and have posed a severe societal and political threat. Apart from facial manipulation and synthetic voice, recently, a novel kind of deepfakes has emerged with either…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Vinaya Sree Katamneni , Ajita Rattani

Multimodal information retrieval (MIR) faces inherent challenges due to the heterogeneity of data sources and the complexity of cross-modal alignment. While previous studies have identified modal gaps in feature spaces, a systematic…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Fanheng Kong , Jingyuan Zhang , Yahui Liu , Hongzhi Zhang , Shi Feng , Xiaocui Yang , Daling Wang , Yu Tian , Victoria W. , Fuzheng Zhang , Guorui Zhou

Multimodal learning helps to comprehensively understand the world, by integrating different senses. Accordingly, multiple input modalities are expected to boost model performance, but we actually find that they are not fully exploited even…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Xiaokang Peng , Yake Wei , Andong Deng , Dong Wang , Di Hu

Federated learning (FL) has emerged as a transformative training paradigm, particularly invaluable in privacy-sensitive domains like healthcare. However, client heterogeneity in data, computing power, and tasks poses a significant…

Machine Learning · Computer Science 2024-10-01 Huidong Tang , Chen Li , Huachong Yu , Sayaka Kamei , Yasuhiko Morimoto

Cross-modal distillation has been widely used to transfer knowledge across different modalities, enriching the representation of the target unimodal one. Recent studies highly relate the temporal synchronization between vision and sound to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-28 Wenke Xia , Xingjian Li , Andong Deng , Haoyi Xiong , Dejing Dou , Di Hu

Multimodal federated learning holds immense potential for collaboratively training models from multiple sources without sharing raw data, addressing both data scarcity and privacy concerns, two key challenges in healthcare. A major…

Machine Learning · Computer Science 2025-05-27 Pranav Poudel , Aavash Chhetri , Prashnna Gyawali , Georgios Leontidis , Binod Bhattarai

Humans perceive the world by concurrently processing and fusing high-dimensional inputs from multiple modalities such as vision and audio. Machine perception models, in stark contrast, are typically modality-specific and optimised for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Arsha Nagrani , Shan Yang , Anurag Arnab , Aren Jansen , Cordelia Schmid , Chen Sun

In real-world scenarios, multimodal federated learning often faces the practical challenge of intricate modality missing, which poses constraints on building federated frameworks and significantly degrades model inference accuracy. Existing…

Machine Learning · Computer Science 2024-02-06 Guangyin Bao , Qi Zhang , Duoqian Miao , Zixuan Gong , Liang Hu , Ke Liu , Yang Liu , Chongyang Shi

Diverse input data modalities can provide complementary cues for several tasks, usually leading to more robust algorithms and better performance. However, while a (training) dataset could be accurately designed to include a variety of…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Nuno Garcia , Pietro Morerio , Vittorio Murino

Federated learning is proposed as an alternative to centralized machine learning since its client-server structure provides better privacy protection and scalability in real-world applications. In many applications, such as smart homes with…

Machine Learning · Computer Science 2022-02-21 Yuchen Zhao , Payam Barnaghi , Hamed Haddadi

The Internet of Things (IoT) ecosystem generates vast amounts of multimodal data from heterogeneous sources such as sensors, cameras, and microphones. As edge intelligence continues to evolve, IoT devices have progressed from simple data…

Machine Learning · Computer Science 2025-05-23 Heqiang Wang , Xiang Liu , Xiaoxiong Zhong , Lixing Chen , Fangming Liu , Weizhe Zhang

Audio-visual learning helps to comprehensively understand the world by fusing practical information from multiple modalities. However, recent studies show that the imbalanced optimization of uni-modal encoders in a joint-learning model is a…

Sound · Computer Science 2023-03-14 Ruize Xu , Ruoxuan Feng , Shi-Xiong Zhang , Di Hu

Incremental learning aims to enable models to continuously acquire knowledge from evolving data streams while preserving previously learned capabilities. While current research predominantly focuses on unimodal incremental learning and…

Machine Learning · Computer Science 2025-04-21 Yaguang Song , Xiaoshan Yang , Dongmei Jiang , Yaowei Wang , Changsheng Xu

Traditional multimodal methods often assume static modality quality, which limits their adaptability in dynamic real-world scenarios. Thus, dynamical multimodal methods are proposed to assess modality quality and adjust their contribution…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Shicai Wei , Kaijie Zhang , Luyi Chen , Tao He , Guiduo Duan