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Semi-supervised learning acts as an effective way to leverage massive unlabeled data. In this paper, we propose a novel training strategy, termed as Semi-supervised Contrastive Learning (SsCL), which combines the well-known contrastive loss…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Yuhang Zhang , Xiaopeng Zhang , Robert. C. Qiu , Jie Li , Haohang Xu , Qi Tian

Most of previous deepfake detection researches bent their efforts to describe and discriminate artifacts in human perceptible ways, which leave a bias in the learned networks of ignoring some critical invariance features intra-class and…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Ruiqi Zha , Zhichao Lian , Qianmu Li , Siqi Gu

Learning robust representations to discriminate cell phenotypes based on microscopy images is important for drug discovery. Drug development efforts typically analyse thousands of cell images to screen for potential treatments. Early works…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Alexis Perakis , Ali Gorji , Samriddhi Jain , Krishna Chaitanya , Simone Rizza , Ender Konukoglu

Contrastive learning has become pivotal in unsupervised representation learning, with frameworks like Momentum Contrast (MoCo) effectively utilizing large negative sample sets to extract discriminative features. However, traditional…

Machine Learning · Computer Science 2025-01-29 Duy Hoang , Huy Ngo , Khoi Pham , Tri Nguyen , Gia Bao , Huy Phan

Existing variance reduction techniques used in stochastic simulations for rare event analysis still require a substantial number of model evaluations to estimate small failure probabilities. In the context of complex, nonlinear finite…

Machine Learning · Computer Science 2025-08-04 Liuyun Xu , Seymour M. J. Spence

Self-supervised learning has achieved a great success in the representation learning of visual and textual data. However, the current methods are mainly validated on the well-curated datasets, which do not exhibit the real-world long-tailed…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Zhihan Zhou , Jiangchao Yao , Yanfeng Wang , Bo Han , Ya Zhang

Machine Learning models are increasingly used in businesses to detect faults and anomalies in complex systems. In this work, we take this approach a step further: beyond merely detecting anomalies, we aim to identify the optimal control…

Systems and Control · Electrical Eng. & Systems 2025-07-15 Emilio Carrizosa , Martina Fischetti , Roshell Haaker , Juan Miguel Morales

Recent work has shown that, when integrated with adversarial training, self-supervised pre-training can lead to state-of-the-art robustness In this work, we improve robustness-aware self-supervised pre-training by learning representations…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Ziyu Jiang , Tianlong Chen , Ting Chen , Zhangyang Wang

Hierarchical classification is a crucial task in many applications, where objects are organized into multiple levels of categories. However, conventional classification approaches often neglect inherent inter-class relationships at…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Julius Ott , Nastassia Vysotskaya , Huawei Sun , Lorenzo Servadei , Robert Wille

Recently, self-supervised methods show remarkable achievements in image-level representation learning. Nevertheless, their image-level self-supervisions lead the learned representation to sub-optimal for dense prediction tasks, such as…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Yunsung Lee , Teakgyu Hong , Han-Cheol Cho , Junbum Cha , Seungryong Kim

Contrastive Learning has recently achieved state-of-the-art performance in a wide range of tasks. Many contrastive learning approaches use mined hard negatives to make batches more informative during training but these approaches are…

Machine Learning · Computer Science 2023-06-08 Vin Sachidananda , Ziyi Yang , Chenguang Zhu

Learning a powerful representation from point clouds is a fundamental and challenging problem in the field of computer vision. Different from images where RGB pixels are stored in the regular grid, for point clouds, the underlying semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-01-28 Feng Yang , Yichao Cao , Qifan Xue , Shuai Jin , Xuanpeng Li , Weigong Zhang

Feature extraction is an efficient approach for alleviating the issue of dimensionality in high-dimensional data. As a popular self-supervised learning method, contrastive learning has recently garnered considerable attention. In this…

Machine Learning · Computer Science 2021-09-14 Hongjie Zhang

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels has gained attention for its cost-effectiveness. Most existing methods emphasize inter-class separation, often neglecting the shared semantics among related categories…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Wangyu Wu , Zhenhong Chen , Xiaowen Ma , Wenqiao Zhang , Xianglin Qiu , Siqi Song , Xiaowei Huang , Fei Ma , Jimin Xiao

The recently proposed Multilinear Compressive Learning (MCL) framework combines Multilinear Compressive Sensing and Machine Learning into an end-to-end system that takes into account the multidimensional structure of the signals when…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Dat Thanh Tran , Moncef Gabbouj , Alexandros Iosifidis

Feature selection is an important process in machine learning and knowledge discovery. By selecting the most informative features and eliminating irrelevant ones, the performance of learning algorithms can be improved and the extraction of…

Machine Learning · Computer Science 2024-01-17 Chunxu Cao , Qiang Zhang

A growing number of wind turbines are equipped with vibration measurement systems to enable a close monitoring and early detection of developing fault conditions. The vibration measurements are analyzed to continuously assess the component…

Machine Learning · Computer Science 2022-02-17 Angela Meyer

With the development of deep learning, Deep Metric Learning (DML) has achieved great improvements in face recognition. Specifically, the widely used softmax loss in the training process often bring large intra-class variations, and feature…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Bowen Wu , Huaming Wu , Monica M. Y. Zhang

This paper proposes a cold start recommendation model that integrates contrastive learning, aiming to solve the problem of performance degradation of recommendation systems in cold start scenarios due to the scarcity of user and item…

Information Retrieval · Computer Science 2025-02-07 Jiacheng Hu , Tai An , Zidong Yu , Junliang Du , Yuanshuai Luo

Commit Classification (CC) is an important task in software maintenance, which helps software developers classify code changes into different types according to their nature and purpose. It allows developers to understand better how their…

Software Engineering · Computer Science 2023-08-17 Jiajun Tong , Zhixiao Wang , Xiaobin Rui