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相关论文: Triadic-OCD: Asynchronous Online Change Detection …

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Online change detection (OCD) aims to rapidly identify change points in streaming data and is critical in applications such as power system monitoring, wireless network sensing, and financial anomaly detection. Existing OCD methods…

机器学习 · 计算机科学 2025-11-18 Zelin Zhu , Yancheng Huang , Kai Yang

Online change-point detection (OCPD) is important for application in various areas such as finance, biology, and the Internet of Things (IoT). However, OCPD faces major challenges due to high-dimensionality, and it is still rarely studied…

机器学习 · 统计学 2019-06-10 Yang-Wen Sun , Katerina Papagiannouli , Vladmir Spokoiny

Continuous learning from an immense volume of data streams becomes exceptionally critical in the internet era. However, data streams often do not conform to the same distribution over time, leading to a phenomenon called concept drift.…

机器学习 · 计算机科学 2024-07-09 Ke Wan , Yi Liang , Susik Yoon

The problem of online change point detection is to detect abrupt changes in properties of time series, ideally as soon as possible after those changes occur. Existing work on online change point detection either assumes i.i.d data, focuses…

机器学习 · 计算机科学 2023-12-01 Lei Xin , George Chiu , Shreyas Sundaram

Online Scene Change Detection (SCD) is an extremely challenging problem that requires an agent to detect relevant changes on the fly while observing the scene from unconstrained viewpoints. Existing online SCD methods are significantly less…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Chamuditha Jayanga Galappaththige , Jason Lai , Lloyd Windrim , Donald Dansereau , Niko Sünderhauf , Dimity Miller

We suggest a novel procedure for online change point detection. Our approach expands an idea of maximizing a discrepancy measure between points from pre-change and post-change distributions. This leads to flexible algorithms suitable for…

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

Standard online change point detection (CPD) methods tend to have large false discovery rates as their detections are sensitive to outliers. To overcome this drawback, we propose Greedy Online Change Point Detection (GOCPD), a…

信号处理 · 电气工程与系统科学 2023-08-15 Jou-Hui Ho , Felipe Tobar

Temporally consistent depth estimation is crucial for online applications such as augmented reality. While stereo depth estimation has received substantial attention as a promising way to generate 3D information, there is relatively little…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Zhaoshuo Li , Wei Ye , Dilin Wang , Francis X. Creighton , Russell H. Taylor , Ganesh Venkatesh , Mathias Unberath

Given a sequence of random (directed and weighted) graphs, we address the problem of online monitoring and detection of changes in the underlying data distribution. Our idea is to endow sequential change-point detection (CPD) techniques…

机器学习 · 计算机科学 2022-02-03 Bernardo Marenco , Paola Bermolen , Marcelo Fiori , Federico Larroca , Gonzalo Mateos

We consider non-differentiable dynamic optimization problems such as those arising in robotics and subspace tracking. Given the computational constraints and the time-varying nature of the problem, a low-complexity algorithm is desirable,…

最优化与控制 · 数学 2019-02-20 Rishabh Dixit , Amrit Singh Bedi , Ruchi Tripathi , Ketan Rajawat

Real-time analytics and decision-making require online anomaly detection (OAD) to handle drifts in data streams efficiently and effectively. Unfortunately, existing approaches are often constrained by their limited detection capacity and…

机器学习 · 计算机科学 2024-04-16 Jiaqi Zhu , Shaofeng Cai , Fang Deng , Beng Chin Ooi , Wenqiao Zhang

Online anomaly detection (OAD) plays a pivotal role in real-time analytics and decision-making for evolving data streams. However, existing methods often rely on costly retraining and rigid decision boundaries, limiting their ability to…

机器学习 · 计算机科学 2026-04-22 Jiaqi Zhu , Shaofeng Cai , Jie Chen , Fang Deng , Beng Chin Ooi , Wenqiao Zhang

This work considers the problem of detecting signals from multiple sequentially observed data streams, where only one stream can be observed at every time instant. The goal is to detect signals as quickly as possible while controlling the…

统计方法学 · 统计学 2026-04-07 Yiming Xing , Georgios Fellouris

Trajectory prediction is central to the safe and seamless operation of autonomous vehicles (AVs). In deployment, however, prediction models inevitably face distribution shifts between training data and real-world conditions, where rare or…

计算机视觉与模式识别 · 计算机科学 2026-03-16 Tongfei Guo , Lili Su

Detecting abrupt changes in data distribution is one of the most significant tasks in streaming data analysis. Although many unsupervised Change-Point Detection (CPD) methods have been proposed recently to identify those changes, they still…

机器学习 · 计算机科学 2024-04-26 Yang Cao , Ye Zhu , Kai Ming Ting , Flora D. Salim , Hong Xian Li , Luxing Yang , Gang Li

How can we find patterns and anomalies in a tensor, or multi-dimensional array, in an efficient and directly interpretable way? How can we do this in an online environment, where a new tensor arrives each time step? Finding patterns and…

数值分析 · 计算机科学 2018-09-05 Jungwoo Lee , Dongjin Choi , Lee Sael

Online detection of changes in stochastic systems, referred to as sequential change detection or quickest change detection, is an important research topic in statistics, signal processing, and information theory, and has a wide range of…

统计理论 · 数学 2021-04-12 Liyan Xie , Shaofeng Zou , Yao Xie , Venugopal V. Veeravalli

Motivated by energy management for micro-grids, we study convex optimization problems with uncertainty in the objective function and sequential decision making. To solve these problems, we propose a new framework called ``Online…

最优化与控制 · 数学 2020-08-25 Martijn H. H. Schoot Uiterkamp , Marco E. T. Gerards , Johann L. Hurink

The rapid expansion of the Internet of Things (IoT) has raised increasing concern about targeted cyber attacks. Previous research primarily focused on static Intrusion Detection Systems (IDSs), which employ offline training to safeguard IoT…

密码学与安全 · 计算机科学 2024-02-06 Xinchen Zhang , Running Zhao , Zhihan Jiang , Zhicong Sun , Yulong Ding , Edith C. H. Ngai , Shuang-Hua Yang
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