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Predictive services nowadays play an important role across all business sectors. However, deployed machine learning models are challenged by changing data streams over time which is described as concept drift. Prediction quality of models…

机器学习 · 计算机科学 2020-12-09 Lucas Baier , Josua Reimold , Niklas Kühl

Many methods have been proposed to detect concept drift, i.e., the change in the distribution of streaming data, due to concept drift causes a decrease in the prediction accuracy of algorithms. However, the most of current detection methods…

人工智能 · 计算机科学 2021-05-05 Hang Yu , Tianyu Liu , Jie Lu , Guangquan Zhang

Spatial-temporal prediction is a fundamental problem for constructing smart city, which is useful for tasks such as traffic control, taxi dispatching, and environmental policy making. Due to data collection mechanism, it is common to see…

机器学习 · 计算机科学 2020-08-25 Huaxiu Yao , Yiding Liu , Ying Wei , Xianfeng Tang , Zhenhui Li

Accurate time series forecasting models are often compromised by data drift, where underlying data distributions change over time, leading to significant declines in prediction performance. To address this challenge, this study proposes an…

系统与控制 · 电气工程与系统科学 2025-12-30 Nikhil Pawar , Guilherme Vieira Hollweg , Akhtar Hussain , Wencong Su , Van-Hai Bui

Existing trajectory prediction methods exhibit significant performance degradation under distribution shifts during test time. Although test-time training techniques have been explored to enable adaptation, current approaches rely on an…

计算机视觉与模式识别 · 计算机科学 2026-03-11 Yuning Wang , Pu Zhang , Yuan He , Ke Wang , Jianru Xue

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

In real-world applications, machine learning models often become obsolete due to shifts in the joint distribution arising from underlying temporal trends, a phenomenon known as the "concept drift". Existing works propose model-specific…

机器学习 · 计算机科学 2023-10-04 Chia-Yuan Chang , Yu-Neng Chuang , Zhimeng Jiang , Kwei-Herng Lai , Anxiao Jiang , Na Zou

In the classic machine learning framework, models are trained on historical data and used to predict future values. It is assumed that the data distribution does not change over time (stationarity). However, in real-world scenarios, the…

机器学习 · 统计学 2023-06-13 Mansour Zoubeirou A Mayaki , Michel Riveill

This paper deals with the issue of concept drift in supervised machine learn-ing. We make use of graphical models to elicit the visible structure of the dataand we infer from there changes in the hidden context. Differently from previous…

机器学习 · 计算机科学 2021-02-03 Luigi Riso , Marco Guerzoni

The notion of concept drift refers to the phenomenon that the data generating distribution changes over time; as a consequence machine learning models may become inaccurate and need adjustment. In this paper we consider the problem of…

机器学习 · 计算机科学 2022-05-16 Fabian Hinder , André Artelt , Valerie Vaquet , Barbara Hammer

Traditional machine learning assumes a stationary data distribution, yet many real-world applications operate on nonstationary streams in which the underlying concept evolves over time. This problem can also be viewed as task-free continual…

机器学习 · 计算机科学 2026-03-17 Michal Wozniak , Marek Klonowski , Maciej Maczynski , Bartosz Krawczyk

Concept drift -- the change of the distribution over time -- poses significant challenges for learning systems and is of central interest for monitoring. Understanding drift is thus paramount, and drift localization -- determining which…

机器学习 · 计算机科学 2026-04-22 Fabian Hinder , Valerie Vaquet , Johannes Brinkrolf , Barbara Hammer

Continuous machine learning pipelines are common in industrial settings where models are periodically trained on data streams. Unfortunately, concept drifts may occur in data streams where the joint distribution of the data X and label y,…

机器学习 · 计算机科学 2023-12-18 Minsu Kim , Seong-Hyeon Hwang , Steven Euijong Whang

Uncertain changes in data streams present challenges for machine learning models to dynamically adapt and uphold performance in real-time. Particularly, classification boundary change, also known as real concept drift, is the major cause of…

机器学习 · 计算机科学 2024-05-24 Feng Gu , Jie Lu , Zhen Fang , Kun Wang , Guangquan Zhang

Machine learning (ML) based time series forecasting models often require and assume certain degrees of stationarity in the data when producing forecasts. However, in many real-world situations, the data distributions are not stationary and…

机器学习 · 计算机科学 2023-04-05 Ziyi Liu , Rakshitha Godahewa , Kasun Bandara , Christoph Bergmeir

The use of machine learning for time series prediction has become increasingly popular across various industries thanks to the availability of time series data and advancements in machine learning algorithms. However, traditional methods…

机器学习 · 统计学 2023-06-01 Gonçalo Mateus , Cláudia Soares , João Leitão , António Rodrigues

The notion of concept drift refers to the phenomenon that the distribution, which is underlying the observed data, changes over time; as a consequence machine learning models may become inaccurate and need adjustment. Many unsupervised…

机器学习 · 计算机科学 2022-02-22 Fabian Hinder , Valerie Vaquet , Barbara Hammer

Concept drift describes unforeseeable changes in the underlying distribution of streaming data over time. Concept drift research involves the development of methodologies and techniques for drift detection, understanding and adaptation.…

机器学习 · 计算机科学 2020-04-14 Jie Lu , Anjin Liu , Fan Dong , Feng Gu , Joao Gama , Guangquan Zhang

Data-driven weather prediction models implicitly assume that the statistical relationship between predictors and targets is stationary. Under anthropogenic climate change, this assumption is violated, yet the structure of the resulting…

大气与海洋物理 · 物理学 2025-11-26 Haokun Zhou

Operational networks commonly rely on machine learning models for many tasks, including detecting anomalies, inferring application performance, and forecasting demand. Yet, model accuracy can degrade due to concept drift, whereby the…

网络与互联网体系结构 · 计算机科学 2023-10-02 Shinan Liu , Francesco Bronzino , Paul Schmitt , Arjun Nitin Bhagoji , Nick Feamster , Hector Garcia Crespo , Timothy Coyle , Brian Ward