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Unsupervised person re-identification (re-ID) aims at closing the performance gap to supervised methods. These methods build reliable relationship between data points while learning representations. However, we empirically show that the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xuanyu He , Wei Zhang , Ran Song , Qian Zhang , Xiangyuan Lan , Lin Ma

While semi-supervised learning (SSL) has received tremendous attentions in many machine learning tasks due to its successful use of unlabeled data, existing SSL algorithms use either all unlabeled examples or the unlabeled examples with a…

Machine Learning · Computer Science 2021-09-03 Yi Xu , Lei Shang , Jinxing Ye , Qi Qian , Yu-Feng Li , Baigui Sun , Hao Li , Rong Jin

Partial Label Learning (PLL) aims to train a classifier when each training instance is associated with a set of candidate labels, among which only one is correct but is not accessible during the training phase. The common strategy dealing…

Machine Learning · Computer Science 2020-02-28 Yao Yao , Chen Gong , Jiehui Deng , Jian Yang

This study proposes a novel approach for solving the PU learning problem based on an anomaly-detection strategy. Latent encodings extracted from positive-labeled data are linearly combined to acquire new samples. These new samples are used…

Machine Learning · Computer Science 2024-07-02 Vasileios Sevetlidis , George Pavlidis , Spyridon Mouroutsos , Antonios Gasteratos

Modern power grids are undergoing significant changes driven by information and communication technologies (ICTs), and evolving into smart grids with higher efficiency and lower operation cost. Using ICTs, however, comes with an inevitable…

Machine Learning · Computer Science 2024-05-24 Hanyu Zeng , Pengfei Zhou , Xin Lou , Zhen Wei Ng , David K. Y. Yau , Marianne Winslett

In many applications, data is easy to acquire but expensive and time-consuming to label prominent examples include medical imaging and NLP. This disparity has only grown in recent years as our ability to collect data improves. Under these…

Machine Learning · Computer Science 2021-04-07 Jaya Krishna Mandivarapu , Blake Camp , Rolando Estrada

While mislabeled or ambiguously-labeled samples in the training set could negatively affect the performance of deep models, diagnosing the dataset and identifying mislabeled samples helps to improve the generalization power. Training…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Qingrui Jia , Xuhong Li , Lei Yu , Jiang Bian , Penghao Zhao , Shupeng Li , Haoyi Xiong , Dejing Dou

We consider the problem of anomaly detection with a small set of partially labeled anomaly examples and a large-scale unlabeled dataset. This is a common scenario in many important applications. Existing related methods either exclusively…

Machine Learning · Computer Science 2021-06-11 Guansong Pang , Anton van den Hengel , Chunhua Shen , Longbing Cao

Multi-label learning is a challenging computer vision task that requires assigning multiple categories to each image. However, fully annotating large-scale datasets is often impractical due to high costs and effort, motivating the study of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Luong Tran , Thieu Vo , Anh Nguyen , Sang Dinh , Van Nguyen

Due to its powerful automatic feature extraction, deep learning (DL) has been widely used in source code vulnerability detection. However, although it performs well on artificial datasets, its performance is not satisfactory when detecting…

Cryptography and Security · Computer Science 2021-12-14 Shihan Dou , Yueming Wu , Wenxuan Li , Feng Cheng , Wei Yang , Yang Liu

Multi-label learning (MLL) learns from the examples each associated with multiple labels simultaneously, where the high cost of annotating all relevant labels for each training example is challenging for real-world applications. To cope…

Machine Learning · Computer Science 2022-10-13 Ning Xu , Congyu Qiao , Jiaqi Lv , Xin Geng , Min-Ling Zhang

The identification of vulnerabilities is an important element in the software development life cycle to ensure the security of software. While vulnerability identification based on the source code is a well studied field, the identification…

Cryptography and Security · Computer Science 2022-12-05 Andreas Schaad , Dominik Binder

Recent state-of-the-art methods in imbalanced semi-supervised learning (SSL) rely on confidence-based pseudo-labeling with consistency regularization. To obtain high-quality pseudo-labels, a high confidence threshold is typically adopted.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Zhuoran Yu , Yin Li , Yong Jae Lee

Recently, pre-trained language models (LMs) have achieved strong performance when fine-tuned on difficult benchmarks like SuperGLUE. However, performance can suffer when there are very few labeled examples available for fine-tuning. Pattern…

Computation and Language · Computer Science 2021-09-29 Derek Tam , Rakesh R Menon , Mohit Bansal , Shashank Srivastava , Colin Raffel

Semi-supervised learning frameworks usually adopt mutual learning approaches with multiple submodels to learn from different perspectives. To avoid transferring erroneous pseudo labels between these submodels, a high threshold is usually…

Computer Vision and Pattern Recognition · Computer Science 2023-01-11 Hao Xu , Hui Xiao , Huazheng Hao , Li Dong , Xiaojie Qiu , Chengbin Peng

Due to the difficulty of collecting exhaustive multi-label annotations, multi-label datasets often contain partial labels. We consider an extreme of this weakly supervised learning problem, called single positive multi-label learning…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Donghao Zhou , Pengfei Chen , Qiong Wang , Guangyong Chen , Pheng-Ann Heng

Mislabeled samples are ubiquitous in real-world datasets as rule-based or expert labeling is usually based on incorrect assumptions or subject to biased opinions. Neural networks can "memorize" these mislabeled samples and, as a result,…

Machine Learning · Computer Science 2021-11-24 Katharina Rombach , Gabriel Michau , Olga Fink

Due to the complexity of modern IT services, failures can be manifold, occur at any stage, and are hard to detect. For this reason, anomaly detection applied to monitoring data such as logs allows gaining relevant insights to improve IT…

Machine Learning · Computer Science 2023-01-26 Thorsten Wittkopp , Dominik Scheinert , Philipp Wiesner , Alexander Acker , Odej Kao

Semi-supervised learning methods are motivated by the availability of large datasets with unlabeled features in addition to labeled data. Unlabeled data is, however, not guaranteed to improve classification performance and has in fact been…

Machine Learning · Statistics 2019-10-25 Xiuming Liu , Dave Zachariah , Johan Wågberg , Thomas B. Schön

A weakly-supervised learning framework named as complementary-label learning has been proposed recently, where each sample is equipped with a single complementary label that denotes one of the classes the sample does not belong to. However,…

Machine Learning · Statistics 2020-07-24 Yuzhou Cao , Shuqi Liu , Yitian Xu