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相关论文: Concept Drift Detection from Multi-Class Imbalance…

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In our digital universe nowadays, enormous amount of data are produced in a streaming manner in a variety of application areas. These data are often unlabelled. In this case, identifying infrequent events, such as anomalies, poses a great…

机器学习 · 计算机科学 2023-09-07 Jin Li , Kleanthis Malialis , Marios M. Polycarpou

While many real-world data streams imply that they change frequently in a nonstationary way, most of deep learning methods optimize neural networks on training data, and this leads to severe performance degradation when dataset shift…

机器学习 · 计算机科学 2021-07-02 Wonju Lee , Seok-Yong Byun , Jooeun Kim , Minje Park , Kirill Chechil

Many real-world data are sequentially collected over time and often exhibit skewed class distributions, resulting in imbalanced data streams. While existing approaches have explored several strategies, such as resampling and reweighting,…

机器学习 · 计算机科学 2025-08-18 Han Zhou , Hongpeng Yin , Xuanhong Deng , Yuyu Huang , Hao Ren

Modern machine learning systems need to be able to cope with constantly arriving and changing data. Two main areas of research dealing with such scenarios are continual learning and data stream mining. Continual learning focuses on…

机器学习 · 计算机科学 2021-04-27 Łukasz Korycki , Bartosz Krawczyk

In data streams, the data distribution of arriving observations at different time points may change - a phenomenon called concept drift. While detecting concept drift is a relatively mature area of study, solutions to the uncertainty…

机器学习 · 计算机科学 2020-08-11 Anjin Liu , Jie Lu , Guangquan Zhang

Concept drift refers to a change in the data distribution affecting the data stream of future samples. Consequently, learning models operating on the data stream might become obsolete, and need costly and difficult adjustments such as…

机器学习 · 计算机科学 2023-09-20 André Artelt , Kleanthis Malialis , Christos Panayiotou , Marios Polycarpou , Barbara Hammer

Online Learning (OL) is a field of research that is increasingly gaining attention both in academia and industry. One of the main challenges of OL is the inherent presence of concept drifts, which are commonly defined as unforeseeable…

机器学习 · 计算机科学 2024-07-01 Mauro Dalle Lucca Tosi , Martin Theobald

A fundamental issue for statistical classification models in a streaming environment is that the joint distribution between predictor and response variables changes over time (a phenomenon also known as concept drifts), such that their…

机器学习 · 统计学 2019-02-11 Shujian Yu , Zubin Abraham , Heng Wang , Mohak Shah , Yantao Wei , José C. Príncipe

Mining data streams is one of the main studies in machine learning area due to its application in many knowledge areas. One of the major challenges on mining data streams is concept drift, which requires the learner to discard the current…

机器学习 · 计算机科学 2023-04-20 Jean Paul Barddal , Heitor Murilo Gomes , Fabrício Enembreck

Data stream mining problem has caused widely concerns in the area of machine learning and data mining. In some recent studies, ensemble classification has been widely used in concept drift detection, however, most of them regard…

数据结构与算法 · 计算机科学 2017-08-14 Junhong Wang , Shuliang Xu , Bingqian Duan , Caifeng Liu , Jiye Liang

Class imbalance poses new challenges when it comes to classifying data streams. Many algorithms recently proposed in the literature tackle this problem using a variety of data-level, algorithm-level, and ensemble approaches. However, there…

机器学习 · 计算机科学 2023-07-19 Gabriel Aguiar , Bartosz Krawczyk , Alberto Cano

Model learning from class imbalanced training data is a long-standing and significant challenge for machine learning. In particular, existing deep learning methods consider mostly either class balanced data or moderately imbalanced data in…

计算机视觉与模式识别 · 计算机科学 2018-05-01 Qi Dong , Shaogang Gong , Xiatian Zhu

Data imbalance is a common problem in machine learning that can have a critical effect on the performance of a model. Various solutions exist but their impact on the convergence of the learning dynamics is not understood. Here, we elucidate…

机器学习 · 统计学 2024-02-20 Emanuele Francazi , Marco Baity-Jesi , Aurelien Lucchi

Machine learning approaches for image classification have led to impressive advances in that field. For example, convolutional neural networks are able to achieve remarkable image classification accuracy across a wide range of applications…

机器学习 · 统计学 2025-10-30 Christopher T. Franck , Anne R. Driscoll , Zoe Szajnfarber , William H. Woodall

Concept Drift (CD) detection intends to continuously identify changes in data stream behaviors, supporting researchers in the study and modeling of real-world phenomena. Motivated by the lack of learning guarantees in current CD algorithms,…

机器学习 · 计算机科学 2020-06-26 Lucas Pagliosa , Rodrigo Mello

Machine learning (ML) is expected to play a major role in 5G edge computing. Various studies have demonstrated that ML is highly suitable for optimizing edge computing systems as rapid mobility and application-induced changes occur at the…

机器学习 · 计算机科学 2021-11-16 Amir Hossein Estiri , Muthucumaru Maheswaran

Incremental learning with concept drift has often been tackled by ensemble methods, where models built in the past can be re-trained to attain new models for the current data. Two design questions need to be addressed in developing ensemble…

机器学习 · 计算机科学 2017-02-14 Yu Sun , Ke Tang , Zexuan Zhu , Xin Yao

The society produces textual data online in several ways, e.g., via reviews and social media posts. Therefore, numerous researchers have been working on discovering patterns in textual data that can indicate peoples' opinions, interests,…

Concept drift refers to changes in the distribution of underlying data and is an inherent property of evolving data streams. Ensemble learning, with dynamic classifiers, has proved to be an efficient method of handling concept drift.…

机器学习 · 计算机科学 2020-04-14 Anjin Liu , Jie Lu , Guangquan Zhang

The ability to detect and adapt to changes in data distributions is crucial to maintain the accuracy and reliability of machine learning models. Detection is generally approached by observing the drift of model performance from a global…

机器学习 · 计算机科学 2025-05-22 Flavio Giobergia , Eliana Pastor , Luca de Alfaro , Elena Baralis