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De novo peptide sequencing from mass spectrometry (MS) data is a critical task in proteomics research. Traditional de novo algorithms have encountered a bottleneck in accuracy due to the inherent complexity of proteomics data. While deep…

Quantitative Methods · Quantitative Biology 2023-12-20 Zhi Jin , Sheng Xu , Xiang Zhang , Tianze Ling , Nanqing Dong , Wanli Ouyang , Zhiqiang Gao , Cheng Chang , Siqi Sun

Reliable tools to extract patterns from high-dimensionality spaces are becoming more necessary as astronomical datasets increase both in volume and complexity. Contrastive Learning is a self-supervised machine learning algorithm that…

Instrumentation and Methods for Astrophysics · Physics 2023-06-12 Marc Huertas-Company , Regina Sarmiento , Johan Knapen

Graph Neural Networks (GNNs) have achieved promising performance in semi-supervised node classification in recent years. However, the problem of insufficient supervision, together with representation collapse, largely limits the performance…

Machine Learning · Computer Science 2025-03-07 Xihong Yang , Yiqi Wang , Yue Liu , Yi Wen , Lingyuan Meng , Sihang Zhou , Xinwang Liu , En Zhu

Contrastive learning is a powerful technique to learn representations that are semantically distinctive and geometrically invariant. While most of the earlier approaches have demonstrated its effectiveness on single-modality learning tasks…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Anurag Jain , Yashaswi Verma

Weakly supervised semantic segmentation (WSSS) methods using class labels often rely on class activation maps (CAMs) to localize objects. However, traditional CAM-based methods struggle with partial activations and imprecise object…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Dewen Zeng , Xinrong Hu , Yu-Jen Chen , Yawen Wu , Xiaowei Xu , Yiyu Shi

Tremendous progress has been made in visual representation learning, notably with the recent success of self-supervised contrastive learning methods. Supervised contrastive learning has also been shown to outperform its cross-entropy…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Ashraful Islam , Chun-Fu Chen , Rameswar Panda , Leonid Karlinsky , Richard Radke , Rogerio Feris

Cross entropy loss has served as the main objective function for classification-based tasks. Widely deployed for learning neural network classifiers, it shows both effectiveness and a probabilistic interpretation. Recently, after the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Rahaf Aljundi , Yash Patel , Milan Sulc , Daniel Olmeda , Nikolay Chumerin

Upscaled video detection is a helpful tool in multimedia forensics, but it is a challenging task that involves various upscaling and compression algorithms. There are many resolution-enhancement methods, including interpolation and…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Viacheslav Meshchaninov , Ivan Molodetskikh , Dmitriy Vatolin

Medical image segmentation has been widely recognized as a pivot procedure for clinical diagnosis, analysis, and treatment planning. However, the laborious and expensive annotation process lags down the speed of further advances.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Zhuowei Li , Zihao Liu , Zhiqiang Hu , Qing Xia , Ruiqin Xiong , Shaoting Zhang , Dimitris Metaxas , Tingting Jiang

Identifying influential nodes in complex networks is a fundamental task in network analysis with wide-ranging applications across domains. While deep learning has advanced node influence detection, existing supervised approaches remain…

Social and Information Networks · Computer Science 2025-09-04 Yanmei Hu , Yihang Wu , Bing Sun , Xue Yue , Biao Cai , Xiangtao Li , Yang Chen

Large medical imaging datasets can be cheaply and quickly annotated with low-confidence, weak labels (e.g., radiological scores). Access to high-confidence labels, such as histology-based diagnoses, is rare and costly. Pretraining…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Emma Sarfati , Alexandre Bône , Marc-Michel Rohé , Pietro Gori , Isabelle Bloch

Contrastive learning has achieved remarkable success on various high-level tasks, but there are fewer contrastive learning-based methods proposed for low-level tasks. It is challenging to adopt vanilla contrastive learning technologies…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Gang Wu , Junjun Jiang , Xianming Liu

Self-Supervised Contrastive Learning has proven effective in deriving high-quality representations from unlabeled data. However, a major challenge that hinders both unimodal and multimodal contrastive learning is feature suppression, a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Jihai Zhang , Xiang Lan , Xiaoye Qu , Yu Cheng , Mengling Feng , Bryan Hooi

Graph anomaly detection is a popular and vital task in various real-world scenarios, which has been studied for several decades. Recently, many studies extending deep learning-based methods have shown preferable performance on graph anomaly…

Machine Learning · Computer Science 2025-05-13 Jing Ren , Mingliang Hou , Zhixuan Liu , Xiaomei Bai

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Self-supervised learning enables networks to learn discriminative features from massive data itself. Most state-of-the-art methods maximize the similarity between two augmentations of one image based on contrastive learning. By utilizing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-05 Jidong Ge , Yuxiang Liu , Jie Gui , Lanting Fang , Ming Lin , James Tin-Yau Kwok , LiGuo Huang , Bin Luo

Recent advancements in contrastive learning have revolutionized self-supervised representation learning and achieved state-of-the-art performance on benchmark tasks. While most existing methods focus on applying contrastive learning to…

Machine Learning · Computer Science 2024-04-16 Lihui Liu , Jinha Kim , Vidit Bansal

Over the last decade, supervised deep learning on manually annotated big data has been progressing significantly on computer vision tasks. But the application of deep learning in medical image analysis was limited by the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wei-Chien Wang , Euijoon Ahn , Dagan Feng , Jinman Kim

Mental disorder populations exhibit pronounced heterogeneity -- that is, the significant differences between samples -- poses a significant challenge to the definition of positive pairs in contrastive learning. To address this, we propose a…

Machine Learning · Computer Science 2026-03-23 Xiaolong Li , Guiliang Guo , Guangqi Wen , Peng Cao , Jinzhu Yang , Honglin Wu , Xiaoli Liu , Fei Wang , Osmar R. Zaiane

This paper presents Contrastive Transformer, a contrastive learning scheme using the Transformer innate patches. Contrastive Transformer enables existing contrastive learning techniques, often used for image classification, to benefit dense…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Sander Riisøen Jyhne , Per-Arne Andersen , Morten Goodwin
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