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相关论文: Tackling Virtual and Real Concept Drifts: An Adapt…

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Classifying streaming data requires the development of methods which are computationally efficient and able to cope with changes in the underlying distribution of the stream, a phenomenon known in the literature as concept drift. We propose…

机器学习 · 统计学 2012-12-27 Gordon J. Ross , Niall M. Adams , Dimitris K. Tasoulis , David J. Hand

We propose Drift-Resistant Navigation World Model, a generative model that mitigates both perceptual drift and geometric drift in conventional rollout-based navigation world models. Existing methods recursively feed generated content into…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Po-Chien Luan , Zimin Xia , Wuyang Li , Yang Gao , Alexandre Alahi

The notion of concept drift refers to the phenomenon that the distribution generating the observed data changes over time. If drift is present, machine learning models may become inaccurate and need adjustment. Many technologies for…

机器学习 · 计算机科学 2022-12-05 Fabian Hinder , Valerie Vaquet , Johannes Brinkrolf , Barbara Hammer

Diffusion probabilistic models excel at sampling new images from learned distributions. Originally motivated by drift-diffusion concepts from physics, they apply image perturbations such as noise and blur in a forward process that results…

图像与视频处理 · 电气工程与系统科学 2024-06-07 Pascal Peter

Concept drift refers to a non stationary learning problem over time. The training and the application data often mismatch in real life problems. In this report we present a context of concept drift problem 1. We focus on the issues relevant…

人工智能 · 计算机科学 2010-10-25 Indrė Žliobaitė

When viewing a 3D Gaussian Splatting (3DGS) model from camera positions significantly outside the training data distribution, substantial visual noise commonly occurs. These artifacts result from the lack of training data in these…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Damian Bowness , Charalambos Poullis

In recent years, parametric representations of point clouds have been widely applied in tasks such as memory-efficient mapping and multi-robot collaboration. Highly adaptive models, like spline surfaces or quadrics, are computationally…

计算机视觉与模式识别 · 计算机科学 2025-09-19 Yuan Gao , Wei Dong

Real world datasets often contain noisy labels, and learning from such datasets using standard classification approaches may not produce the desired performance. In this paper, we propose a Gaussian Mixture Discriminant Analysis (GMDA) with…

机器学习 · 计算机科学 2022-01-26 Jian-wei Liu , Zheng-ping Ren , Run-kun Lu , Xiong-lin Luo

Click-through rate (CTR) prediction is a crucial task in web search, recommender systems, and online advertisement displaying. In practical application, CTR models often serve with high-speed user-generated data streams, whose underlying…

信息检索 · 计算机科学 2023-02-24 Congcong Liu , Yuejiang Li , Fei Teng , Xiwei Zhao , Changping Peng , Zhangang Lin , Jinghe Hu , Jingping Shao

This paper focuses on supervised and unsupervised online label shift, where the class marginals $Q(y)$ varies but the class-conditionals $Q(x|y)$ remain invariant. In the unsupervised setting, our goal is to adapt a learner, trained on some…

Online updating of time series forecasting models aims to tackle the challenge of concept drifting by adjusting forecasting models based on streaming data. While numerous algorithms have been developed, most of them focus on model design…

机器学习 · 计算机科学 2024-03-25 YiFan Zhang , Weiqi Chen , Zhaoyang Zhu , Dalin Qin , Liang Sun , Xue Wang , Qingsong Wen , Zhang Zhang , Liang Wang , Rong Jin

Outlier detection and concept drift detection represent two challenges in data analysis. Most studies address these issues separately. However, joint detection mechanisms in regression remain underexplored, where the continuous nature of…

统计方法学 · 统计学 2025-12-16 Bingbing Wang , Shengyan Sun , Jiaqi Wang , Yu Tang

An open challenge in supervised learning is \emph{conceptual drift}: a data point begins as classified according to one label, but over time the notion of that label changes. Beyond linear autoregressive models, transfer and meta learning…

最优化与控制 · 数学 2019-09-13 Amrit Singh Bedi , Alec Koppel , Ketan Rajawat , Brian M. Sadler

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

Time series forecasting always faces the challenge of concept drift, where data distributions evolve over time, leading to a decline in forecast model performance. Existing solutions are based on online learning, which continually organize…

机器学习 · 计算机科学 2025-12-19 Lifan Zhao , Yanyan Shen

This paper investigates a financial market where stock returns depend on a hidden Gaussian mean reverting drift process. Information on the drift is obtained from returns and expert opinions in the form of noisy signals about the current…

数理金融 · 定量金融 2020-03-24 Abdelali Gabih , Hakam Kondakji , Ralf Wunderlich

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

Change Detection (CD) enables the identification of alterations between images of the same area captured at different times. However, existing CD methods still struggle to address pseudo changes resulting from domain information differences…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Yi Xiao , Bin Luo , Jun Liu , Xin Su , Wei Wang

The growth of network-connected devices has led to an exponential increase in data generation, creating significant challenges for efficient data analysis. This data is generated continuously, creating a dynamic flow known as a data stream.…

机器学习 · 计算机科学 2023-12-27 Kazuhisa Fujita

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