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Recent advances in image-level self-supervised learning (SSL) have made significant progress, yet learning dense representations for patches remains challenging. Mainstream methods encounter an over-dispersion phenomenon that patches from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Peisong Wen , Qianqian Xu , Siran Dai , Runmin Cong , Qingming Huang

In the domain of air traffic control (ATC) systems, efforts to train a practical automatic speech recognition (ASR) model always faces the problem of small training samples since the collection and annotation of speech samples are expert-…

Sound · Computer Science 2021-02-17 Yi Lin , Qin Li , Bo Yang , Zhen Yan , Huachun Tan , Zhengmao Chen

This thesis examines self-attention training through the lens of Optimal Transport (OT) and develops an OT-based alternative for tabular classification. The study tracks intermediate projections of the self-attention layer during training…

Machine Learning · Statistics 2026-02-19 Alessandro Quadrio , Antonio Candelieri

Contrastive learning has been proved to be a promising technique for image-level representation learning from unlabeled data. Many existing works have demonstrated improved results by applying contrastive learning in classification and…

Image and Video Processing · Electrical Eng. & Systems 2021-09-20 Dewen Zeng , John N. Kheir , Peng Zeng , Yiyu Shi

Self-Supervised Learning (SSL) is a valuable and robust training methodology for contemporary Deep Neural Networks (DNNs), enabling unsupervised pretraining on a 'pretext task' that does not require ground-truth labels/annotation. This…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Sotirios Konstantakos , Jorgen Cani , Ioannis Mademlis , Despina Ioanna Chalkiadaki , Yuki M. Asano , Efstratios Gavves , Georgios Th. Papadopoulos

Chest X-Ray (CXR) examination is a common method for assessing thoracic diseases in clinical applications. While recent advances in deep learning have enhanced the significance of visual analysis for CXR anomaly detection, current methods…

Image and Video Processing · Electrical Eng. & Systems 2023-11-21 Haoqi Ni , Ximiao Zhang , Min Xu , Ning Lang , Xiuzhuang Zhou

The limited availability of labeled chest X-ray datasets is a significant bottleneck in the development of medical imaging methods. Self-supervised learning (SSL) can mitigate this problem by training models on unlabeled data. Furthermore,…

Image and Video Processing · Electrical Eng. & Systems 2023-08-02 Mohammadreza Shakouri , Fatemeh Iranmanesh , Mahdi Eftekhari

Self-supervised learning (SSL) has emerged as a promising paradigm for learning flexible speech representations from unlabeled data. By designing pretext tasks that exploit statistical regularities, SSL models can capture useful…

Sound · Computer Science 2024-01-25 Yusuf Brima , Ulf Krumnack , Simone Pika , Gunther Heidemann

Self-Supervised Learning (SSL) methods operate on unlabeled data to learn robust representations useful for downstream tasks. Most SSL methods rely on augmentations obtained by transforming the 2D image pixel map. These augmentations ignore…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Sumukh Aithal , Anirudh Goyal , Alex Lamb , Yoshua Bengio , Michael Mozer

Multi-modal large language models (MLLMs) achieve strong visual-language reasoning but suffer from high inference cost due to redundant visual tokens. Recent work explores visual token pruning to accelerate inference, while existing pruning…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Xiwen Chen , Wenhui Zhu , Gen Li , Xuanzhao Dong , Yujian Xiong , Hao Wang , Peijie Qiu , Qingquan Song , Zhipeng Wang , Shao Tang , Yalin Wang , Abolfazl Razi

Vision-language pre-training (VLP) models demonstrate impressive abilities in processing both images and text. However, they are vulnerable to multi-modal adversarial examples (AEs). Investigating the generation of high-transferability…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Dongchen Han , Xiaojun Jia , Yang Bai , Jindong Gu , Yang Liu , Xiaochun Cao

Multimodal Information Extraction (MIE) requires fusing text and visual cues from visually rich documents. While recent methods have advanced multimodal representation learning, most implicitly assume modality equivalence or treat…

Information Retrieval · Computer Science 2025-11-20 Yang Li , Yajiao Wang , Wenhao Hu , Zhixiong Zhang , Mengting Zhang

Accurate segmentation of retinal fluids in 3D Optical Coherence Tomography images is key for diagnosis and personalized treatment of eye diseases. While deep learning has been successful at this task, trained supervised models often fail…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Alvaro Gomariz , Huanxiang Lu , Yun Yvonna Li , Thomas Albrecht , Andreas Maunz , Fethallah Benmansour , Alessandra M. Valcarcel , Jennifer Luu , Daniela Ferrara , Orcun Goksel

Medical time series data are indispensable in healthcare, providing critical insights for disease diagnosis, treatment planning, and patient management. The exponential growth in data complexity, driven by advanced sensor technologies, has…

Machine Learning · Computer Science 2024-04-02 Huayu Li , Ana S. Carreon-Rascon , Xiwen Chen , Geng Yuan , Ao Li

Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Byungseok Roh , Wuhyun Shin , Ildoo Kim , Sungwoong Kim

Multimodal Large Language Models (MLLMs) have shown success in various general image processing tasks, yet their application in medical imaging is nascent, lacking tailored models. This study investigates the potential of MLLMs in improving…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Ling Yang , Zhanyu Wang , Zhenghao Chen , Xinyu Liang , Luping Zhou

Transferring linguistic knowledge from a pretrained language model (PLM) to acoustic feature learning has proven effective in enhancing end-to-end automatic speech recognition (E2E-ASR). However, aligning representations between linguistic…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-20 Xugang Lu , Peng Shen , Yu Tsao , Hisashi Kawai

Self-supervised Learning (SSL) has recently gained much attention due to the high cost and data limitation in the training of supervised learning models. The current paradigm in the SSL is to utilize data augmentation at the input space to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Tariq Bdair , Hossam Abdelhamid , Nassir Navab , Shadi Albarqouni

Deep learning has become a valuable tool for the automation of certain medical image segmentation tasks, significantly relieving the workload of medical specialists. Some of these tasks require segmentation to be performed on a subset of…

Image and Video Processing · Electrical Eng. & Systems 2024-02-06 José Morano , Guilherme Aresta , Dmitrii Lachinov , Julia Mai , Ursula Schmidt-Erfurth , Hrvoje Bogunović

In the realm of computer vision and graphics, accurately establishing correspondences between geometric 3D shapes is pivotal for applications like object tracking, registration, texture transfer, and statistical shape analysis. Moving…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Tung Le , Khai Nguyen , Shanlin Sun , Nhat Ho , Xiaohui Xie