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In this work, we tackle the problem of online adaptation for stereo depth estimation, that consists in continuously adapting a deep network to a target video recordedin an environment different from that of the source training set. To…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Zhenyu Zhang , Stéphane Lathuilière , Andrea Pilzer , Nicu Sebe , Elisa Ricci , Jian Yang

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

We propose a novel change-point detection method based on online Dynamic Mode Decomposition with control (ODMDwC). Leveraging ODMDwC's ability to find and track linear approximation of a non-linear system while incorporating control…

人工智能 · 计算机科学 2024-08-20 Marek Wadinger , Michal Kvasnica , Yoshinobu Kawahara

Catastrophic forgetting is a significant challenge in online continual learning (OCL), especially for non-stationary data streams that do not have well-defined task boundaries. This challenge is exacerbated by the memory constraints and…

计算机视觉与模式识别 · 计算机科学 2024-11-11 Xiwen Wei , Guihong Li , Radu Marculescu

In this paper, we propose a fuzzy adaptive loss function for enhancing deep learning performance in classification tasks. Specifically, we redefine the cross-entropy loss to effectively address class-level noise conditions, including the…

机器学习 · 计算机科学 2023-10-13 Sebastián Maldonado , Carla Vairetti , Katherine Jara , Miguel Carrasco , Julio López

Online nonparametric estimators are gaining popularity due to their efficient computation and competitive generalization abilities. An important example includes variants of stochastic gradient descent. These algorithms often take one…

统计理论 · 数学 2025-07-08 Tianyu Zhang , Jing Lei

Data stream processing has become a landmark in modern machine learning applications, with concept drifts and novel class appearances posing the primary challenges faced by sophisticated recognition methods. This work proposes an…

机器学习 · 计算机科学 2026-05-29 Joanna Komorniczak

Online learning, where feature spaces can change over time, offers a flexible learning paradigm that has attracted considerable attention. However, it still faces three significant challenges. First, the heterogeneity of real-world data…

机器学习 · 计算机科学 2025-07-17 Shengda Zhuo , Di Wu , Yi He , Shuqiang Huang , Xindong Wu

Most predictive models assume that training and test data are generated from a stationary process. However, this assumption does not hold true in practice. In this paper, we consider the scenario of a gradual concept drift due to the…

机器学习 · 计算机科学 2020-02-12 Subhro Das , Prasanth Lade , Soundar Srinivasan

Machine learning models often encounter distribution shifts when deployed in the real world. In this paper, we focus on adaptation to label distribution shift in the online setting, where the test-time label distribution is continually…

机器学习 · 计算机科学 2022-01-06 Ruihan Wu , Chuan Guo , Yi Su , Kilian Q. Weinberger

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

Real-world data streams exhibit inherent non-stationarity characterized by concept drift, posing significant challenges for adaptive learning systems. While existing methods address isolated distribution shifts, they overlook the critical…

机器学习 · 计算机科学 2026-03-24 En Yu , Jie Lu , Guangquan Zhang

Many real-world applications adopt multi-label data streams as the need for algorithms to deal with rapidly changing data increases. Changes in data distribution, also known as concept drift, cause the existing classification models to…

机器学习 · 计算机科学 2022-02-02 Ege Berkay Gulcan , Fazli Can

In the modern era of digital transformation, the evolution of the fifth-generation (5G) wireless network has played a pivotal role in revolutionizing communication technology and accelerating the growth of smart technology applications.…

密码学与安全 · 计算机科学 2023-05-19 Yafeng Wu , Lan Liu , Yongjie Yu , Guiming Chen , Junhan Hu

Modern configurable software systems need to learn models that correlate configuration and performance. However, when the system operates in dynamic environments, the workload variations, hardware changes, and system updates will inevitably…

软件工程 · 计算机科学 2025-09-01 Zezhen Xiang , Jingzhi Gong , Tao Chen

Stream classification methods classify a continuous stream of data as new labelled samples arrive. They often also have to deal with concept drift. This paper focuses on seasonal drift in stream classification, which can be found in many…

机器学习 · 计算机科学 2020-06-30 Rakshitha Godahewa , Trevor Yann , Christoph Bergmeir , Francois Petitjean

Detecting drifts in data is essential for machine learning applications, as changes in the statistics of processed data typically has a profound influence on the performance of trained models. Most of the available drift detection methods…

机器学习 · 计算机科学 2024-10-28 Andrea Castellani , Sebastian Schmitt , Barbara Hammer

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

Modern analytical systems must be ready to process streaming data and correctly respond to data distribution changes. The phenomenon of changes in data distributions is called concept drift, and it may harm the quality of the used models.…

机器学习 · 计算机科学 2021-10-26 Jędrzej Kozal , Filip Guzy , Michał Woźniak

This article presents a comprehensive survey of online test-time adaptation (OTTA), focusing on effectively adapting machine learning models to distributionally different target data upon batch arrival. Despite the recent proliferation of…

人工智能 · 计算机科学 2024-07-19 Zixin Wang , Yadan Luo , Liang Zheng , Zhuoxiao Chen , Sen Wang , Zi Huang