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The detection of early signs of volcanic unrest preceding an eruption, in the form of ground deformation in Interferometric Synthetic Aperture Radar (InSAR) data is critical for assessing volcanic hazard. In this work we treat this as a…

图像与视频处理 · 电气工程与系统科学 2022-06-17 Nikolaos Ioannis Bountos , Dimitrios Michail , Ioannis Papoutsis

Change detection (CD) is essential for various real-world applications, such as urban management and disaster assessment. Numerous CD methods have been proposed, and considerable results have been achieved recently. However, detecting…

计算机视觉与模式识别 · 计算机科学 2024-10-21 Zhenglai Li , Chang Tang , Xinwang Liu , Xingchen Hu , Xianju Li , Ning Li , Changdong Li

Change detection (CD) is fundamental to computer vision and remote sensing, supporting applications in environmental monitoring, disaster response, and urban development. Most CD models assume co-registered inputs, yet real-world imagery…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Seyedehanita Madani , Rama Chellappa , Vishal M. Patel

Illegal, unreported, and unregulated (IUU) fishing activities seriously affect various aspects of human life. However, traditional methods for detecting and monitoring IUU fishing activities at sea have limitations. Although synthetic…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Yanbing Bai , Siao Li , Rui-Yang Ju , Zihao Yang , Jinze Yu , Jen-Shiun Chiang

Unsupervised Anomaly Detection (UAD) plays a crucial role in identifying abnormal patterns within data without labeled examples, holding significant practical implications across various domains. Although the individual contributions of…

机器学习 · 计算机科学 2024-06-04 Zeyu Fang , Ming Gu , Sheng Zhou , Jiawei Chen , Qiaoyu Tan , Haishuai Wang , Jiajun Bu

Many methods for time-series forecasting are known in classical statistics, such as autoregression, moving averages, and exponential smoothing. The DeepAR framework is a novel, recent approach for time-series forecasting based on deep…

机器学习 · 计算机科学 2023-02-23 Ayla Jungbluth , Johannes Lederer

Unsupervised Anomaly Detection (UAD) with incremental training is crucial in industrial manufacturing, as unpredictable defects make obtaining sufficient labeled data infeasible. However, continual learning methods primarily rely on…

计算机视觉与模式识别 · 计算机科学 2024-01-03 Jiaqi Liu , Kai Wu , Qiang Nie , Ying Chen , Bin-Bin Gao , Yong Liu , Jinbao Wang , Chengjie Wang , Feng Zheng

Unsupervised learning has grown in popularity because of the difficulty of collecting annotated data and the development of modern frameworks that allow us to learn from unlabeled data. Existing studies, however, either disregard variations…

计算机视觉与模式识别 · 计算机科学 2023-05-25 Yi-Zhan Xu , Chih-Yao Chen , Cheng-Te Li

With the widespread application of remote sensing technology in environmental monitoring, the demand for efficient and accurate remote sensing image change detection (CD) for natural environments is growing. We propose a novel deep learning…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Sijun Dong , Yuwei Zhu , Geng Chen , Xiaoliang Meng

Unsupervised fault detection in multivariate time series plays a vital role in ensuring the stable operation of complex systems. Traditional methods often assume that normal data follow a single Gaussian distribution and identify anomalies…

机器学习 · 计算机科学 2025-07-01 Hong Liu , Xiuxiu Qiu , Yiming Shi , Miao Xu , Zelin Zang , Zhen Lei

Change-point detection in a time series aims to discover the time points at which some unknown underlying physical process that generates the time-series data has changed. We found that existing approaches become less accurate when the…

机器学习 · 计算机科学 2020-08-04 Varsha Suresh , Wei Tsang Ooi

Recent advancements in deep learning-based wearable human action recognition (wHAR) have improved the capture and classification of complex motions, but adoption remains limited due to the lack of expert annotations and domain discrepancies…

计算机视觉与模式识别 · 计算机科学 2024-10-24 Indrajeet Ghosh , Garvit Chugh , Abu Zaher Md Faridee , Nirmalya Roy

Unsupervised anomaly detection (AD) is a fundamental problem in machine learning and statistics. A popular approach to unsupervised AD is clustering-based detection. However, this method lacks the ability to guarantee the reliability of the…

机器学习 · 统计学 2025-04-29 Nguyen Thi Minh Phu , Duong Tan Loc , Vo Nguyen Le Duy

Remote sensing change detection (RSCD) aims to localise changes between two images of the same geographic region. In practice, change masks often follow region-level annotation conventions rather than purely local appearance differences,…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Blaž Rolih , Matic Fučka , Filip Wolf , Luka Čehovin Zajc

Climate change is intensifying rainfall extremes, making high-resolution precipitation projections crucial for society to better prepare for impacts such as flooding. However, current Global Climate Models (GCMs) operate at spatial…

机器学习 · 计算机科学 2024-12-20 Ran Lyu , Linhan Wang , Yanshen Sun , Hedanqiu Bai , Chang-Tien Lu

Semi-supervised anomaly detection methods leverage a few anomaly examples to yield drastically improved performance compared to unsupervised models. However, they still suffer from two limitations: 1) unlabeled anomalies (i.e., anomaly…

机器学习 · 计算机科学 2023-07-26 Hongzuo Xu , Yijie Wang , Guansong Pang , Songlei Jian , Ning Liu , Yongjun Wang

For visual estimation of optical flow, a crucial function for many vision tasks, unsupervised learning, using the supervision of view synthesis has emerged as a promising alternative to supervised methods, since ground-truth flow is not…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Zitang Sun , Shin'ya Nishida , Zhengbo Luo

Autonomous vehicles are conceived to provide safe and secure services by validating the safety standards as indicated by SOTIF-ISO/PAS-21448 (Safety of the intended functionality). Keeping in this context, the perception of the environment…

计算机视觉与模式识别 · 计算机科学 2021-12-01 Shoaib Azam , Farzeen Munir , Moongu Jeon

Lake ice, as part of the Essential Climate Variable (ECV) lakes, is an important indicator to monitor climate change and global warming. The spatio-temporal extent of lake ice cover, along with the timings of key phenological events such as…

图像与视频处理 · 电气工程与系统科学 2020-05-08 Manu Tom , Roberto Aguilar , Pascal Imhof , Silvan Leinss , Emmanuel Baltsavias , Konrad Schindler

The increasing frequency of environmental hazards due to climate change underscores the urgent need for effective monitoring systems. Current approaches either rely on expensive labelled datasets, struggle with seasonal variations, or…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Samuel Garske , Konrad Heidler , Bradley Evans , KC Wong , Xiao Xiang Zhu