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Up-to-date High-Definition (HD) maps are essential for self-driving cars. To achieve constantly updated HD maps, we present a deep neural network (DNN), Diff-Net, to detect changes in them. Compared to traditional methods based on object…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Lei He , Shengjie Jiang , Xiaoqing Liang , Ning Wang , Shiyu Song

Unsupervised Continuous Anomaly Detection (UCAD) is gaining attention for effectively addressing the catastrophic forgetting and heavy computational burden issues in traditional Unsupervised Anomaly Detection (UAD). However, existing UCAD…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Mingle Zhou , Jiahui Liu , Jin Wan , Gang Li , Min Li

The problem of identifying anomalies in dynamic networks is a fundamental task with a wide range of applications. However, it raises critical challenges due to the complex nature of anomalies, lack of ground truth knowledge, and complex and…

机器学习 · 计算机科学 2022-11-16 Ali Behrouz , Margo Seltzer

This paper summarizes model improvements and inference-time optimizations for the popular anchor-based detectors in the scenes of autonomous driving. Based on the high-performing RCNN-RS and RetinaNet-RS detection frameworks designed for…

计算机视觉与模式识别 · 计算机科学 2022-08-15 Xianzhi Du , Wei-Chih Hung , Tsung-Yi Lin

Due to the issue that existing wireless sensor network (WSN)-based anomaly detection methods only consider and analyze temporal features, in this paper, a self-supervised learning-based anomaly node detection method based on an autoencoder…

机器学习 · 计算机科学 2022-12-29 Miao Ye , Qinghao Zhang , Xingsi Xue , Yong Wang , Qiuxiang Jiang , Hongbing Qiu

The main aim of this work is to develop and implement an automatic anomaly detection algorithm for meteorological time-series. To achieve this goal we develop an approach to constructing an ensemble of anomaly detectors in combination with…

机器学习 · 计算机科学 2019-05-21 D. Smolyakov , N. Sviridenko , V. Ishimtsev , E. Burikov , E. Burnaev

The paper explores the industrial multimodal Anomaly Detection (AD) task, which exploits point clouds and RGB images to localize anomalies. We introduce a novel light and fast framework that learns to map features from one modality to the…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Alex Costanzino , Pierluigi Zama Ramirez , Giuseppe Lisanti , Luigi Di Stefano

Event-based camera is a bio-inspired vision sensor that records intensity changes (called event) asynchronously in each pixel. As an instance of event-based camera, Dynamic and Active-pixel Vision Sensor (DAVIS) combines a standard camera…

计算机视觉与模式识别 · 计算机科学 2019-04-29 Yuhu Guo , Han Xiao , Yidong Chen , Xiaodong Shi

This paper presents a new approach to crowd behaviour anomaly detection that uses a set of efficiently computed, easily interpretable, scene-level holistic features. This low-dimensional descriptor combines two features from the literature:…

计算机视觉与模式识别 · 计算机科学 2016-06-17 M. Marsden , K. McGuinness , S. Little , N. E. O'Connor

Anomaly detection to recognize unusual events in large scale systems in a time sensitive manner is critical in many industries, eg. bank fraud, enterprise systems, medical alerts, etc. Large-scale systems often grow in size and complexity…

机器学习 · 计算机科学 2022-10-31 Srishti Mishra , Tvarita Jain , Dinkar Sitaram

The problem of quickest growing dynamic anomaly detection in sensor networks is studied. Initially, the observations at the sensors, which are sampled sequentially by the decision maker, are generated according to a pre-change distribution.…

统计理论 · 数学 2020-02-04 Georgios Rovatsos , Venugopal V. Veeravalli , Don Towsley , Ananthram Swami

Anomalies refer to data points or events that deviate from normal and homogeneous events, which can include fraudulent activities, network infiltrations, equipment malfunctions, process changes, or other significant but infrequent events.…

机器学习 · 计算机科学 2023-03-20 Ahmed Shoyeb Raihan , Imtiaz Ahmed

Detecting anomalies in a temporal sequence of graphs can be applied is areas such as the detection of accidents in transport networks and cyber attacks in computer networks. Existing methods for detecting abnormal graphs can suffer from…

机器学习 · 计算机科学 2025-02-03 Sevvandi Kandanaarachchi , Conrad Sanderson , Rob J. Hyndman

Most videos, including those captured through aerial remote sensing, are usually non-stationary in nature having time-varying feature statistics. Although, sophisticated reconstruction and prediction models exist for video anomaly…

计算机视觉与模式识别 · 计算机科学 2025-03-05 Gargi V. Pillai , Debashis Sen

The use of video-imaging data for in-line process monitoring applications has become more and more popular in the industry. In this framework, spatio-temporal statistical process monitoring methods are needed to capture the relevant…

应用统计 · 统计学 2020-04-24 Hao Yan , Marco Grasso , Kamran Paynabar , Bianca Maria Colosimo

Anomaly detection in complex dynamical systems is essential for ensuring reliability, safety, and efficiency in industrial and cyber-physical infrastructures. Predictive maintenance helps prevent costly failures, while cybersecurity…

机器学习 · 计算机科学 2025-09-25 Michael Somma , Thomas Gallien , Branka Stojanovic

Anomaly Detection is a relevant problem in numerous real-world applications, especially when dealing with images. However, little attention has been paid to the issue of changes over time in the input data distribution, which may cause a…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Nikola Bugarin , Jovana Bugaric , Manuel Barusco , Davide Dalle Pezze , Gian Antonio Susto

In recent years there have been remarkable advancements in autonomous driving. While autonomous vehicles demonstrate high performance in closed-set conditions, they encounter difficulties when confronted with unexpected situations. At the…

人工智能 · 计算机科学 2024-01-10 Daniel Bogdoll , Lukas Bosch , Tim Joseph , Helen Gremmelmaier , Yitian Yang , J. Marius Zöllner

Object detection in autonomous driving is frequently compromised by complex illumination. While event cameras offer a robust solution, they are susceptible to sudden contrast changes such as reflections which often trigger dense, misleading…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Mingjie Liu , Hanqing Liu , Luoping Cui , Chuang Zhu

Detecting anomalies from a series of temporal networks has many applications, including road accidents in transport networks and suspicious events in social networks. While there are many methods for network anomaly detection, statistical…

社会与信息网络 · 计算机科学 2022-10-17 Sevvandi Kandanaarachchi , Rob J Hyndman
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