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Accurate earthquake location, which determines the origin time and location of seismic events using phase arrival times or waveforms, is fundamental to earthquake monitoring. While recent deep learning advances have significantly improved…

地球物理 · 物理学 2025-02-18 Weiqiang Zhu , Bo Rong , Yaqi Jie , S. Shawn Wei

In this work, we develop and compare two innovative strategies for parameter estimation and radar detection of multiple point-like targets. The first strategy, which appears here for the first time, jointly exploits the maximum likelihood…

信号处理 · 电气工程与系统科学 2020-12-02 Pia Addabbo , Jun Liu , Danilo Orlando , Giuseppe Ricci

The analysis of the scattered signal was carried out in the cases of ground scatter and ionospheric scatter. The analysis is based on the data of the decameter coherent EKB ISTP SB RAS radar. In the paper the signals scattered in each…

地球物理 · 物理学 2019-10-17 I. A. Lavygin , V. P. Lebedev , K. V. Grkovich , O. I. Berngardt

Recent work has achieved dense 3D reconstruction with wide-aperture imaging sonar using a stereo pair of orthogonally oriented sonars. This allows each sonar to observe a spatial dimension that the other is missing, without requiring any…

机器人学 · 计算机科学 2021-04-08 John McConnell , Brendan Englot

Multi-camera systems are an important sensor platform for intelligent systems such as self-driving cars. Pattern-based calibration techniques can be used to calibrate the intrinsics of the cameras individually. However, extrinsic…

计算机视觉与模式识别 · 计算机科学 2020-09-17 Yukai Lin , Viktor Larsson , Marcel Geppert , Zuzana Kukelova , Marc Pollefeys , Torsten Sattler

The rapid proliferation of deep-learning-based detection and association methods has greatly expanded automatically generated earthquake catalogs, but has also introduced false detections, mis-associated arrivals, and poorly constrained…

地球物理 · 物理学 2026-03-03 Ziye Yu , Jinqing Sun , Yuqi Cai , Zemin Liu , Pingping Wu , Xin Liu , Jiayan Tan

Countries in South Asia experience many catastrophic flooding events regularly. Through image classification, it is possible to expedite search and rescue initiatives by classifying flood zones, including houses and humans. We create a new…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Ibne Hassan , Aman Mujahid , Abdullah Al Hasib , Andalib Rahman Shagoto , Joyanta Jyoti Mondal , Meem Arafat Manab , Jannatun Noor

Monitoring of disasters is crucial for mitigating their effects on the environment and human population, and can be facilitated by the use of unmanned aerial vehicles (UAV), equipped with camera sensors that produce aerial photos of the…

机器学习 · 计算机科学 2018-08-09 Andreas Kamilaris , Francesc X. Prenafeta-Boldú

In this paper, we provide two case studies to demonstrate how artificial intelligence can empower civil engineering. In the first case, a machine learning-assisted framework, BRAILS, is proposed for city-scale building information modeling.…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Qian Yu , Chaofeng Wang , Barbaros Cetiner , Stella X. Yu , Frank Mckenna , Ertugrul Taciroglu , Kincho H. Law

While modern deep learning methods have shown great promise in the problem of earthquake detection, the most successful methods so far have been based on supervised learning, which requires large datasets with ground-truth labels. The…

机器学习 · 计算机科学 2024-10-18 Onur Efe , Arkadas Ozakin

We present a methodology based on interferometric synthetic aperture radar (InSAR) time series analysis that can provide surface (top 5 cm) soil moisture (SSM) estimations. The InSAR time series analysis consists of five processing steps. A…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Kleanthis Karamvasis , Vassilia Karathanassi

We present a framework that enables estimation of low-dimensional sub-resolution reservoir properties directly from seismic data, without requiring the solution of a high dimensional seismic inverse problem. Our workflow is based on the…

地球物理 · 物理学 2019-05-15 Anshuman Pradhan , Tapan Mukerji

Monitoring volcanic activity is of paramount importance to safeguarding lives, infrastructure, and ecosystems. However, only a small fraction of known volcanoes are continuously monitored. Satellite-based Interferometric Synthetic Aperture…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Nikolas Papadopoulos , Nikolaos Ioannis Bountos , Maria Sdraka , Andreas Karavias , Gustau Camps-Valls , Ioannis Papoutsis

A new class of disturbance covariance matrix estimators for radar signal processing applications is introduced following a geometric paradigm. Each estimator is associated with a given unitary invariant norm and performs the sample…

应用统计 · 统计学 2018-02-14 Augusto Aubry , Antonio De Maio , Luca Pallotta

This paper combines the power of deep-learning with the generalizability of physics-based features, to present an advanced method for seismic discrimination between earthquakes and explosions. The proposed method contains two branches: a…

地球物理 · 物理学 2022-07-20 Qingkai Kong , Ruijia Wang , William R. Walter , Moira Pyle , Keith Koper , Brandon Schmandt

Unmanned Aerial Vehicles (UAVs) have become increasingly popular in various applications, especially with the emergence of 6G systems and networks. However, their widespread adoption has also led to concerns regarding security…

密码学与安全 · 计算机科学 2025-11-05 Safaa Menssouri , Mamady Delamou , Khalil Ibrahimi , El Mehdi Amhoud

Anomaly detection plays a vital role in the inspection of industrial images. Most existing methods require separate models for each category, resulting in multiplied deployment costs. This highlights the challenge of developing a unified…

计算机视觉与模式识别 · 计算机科学 2025-05-26 Qiyu Chen , Huiyuan Luo , Haiming Yao , Wei Luo , Zhen Qu , Chengkan Lv , Zhengtao Zhang

Structural damage due to excessive loading or environmental degradation typically occurs in localized areas in the absence of collapse. This prior information about the spatial sparseness of structural damage is exploited here by a…

应用统计 · 统计学 2015-03-29 Yong Huang , James L. Beck

Detecting anomalies in multivariate time-series data is essential in many real-world applications. Recently, various deep learning-based approaches have shown considerable improvements in time-series anomaly detection. However, existing…

机器学习 · 计算机科学 2022-01-31 Kyeong-Joong Jeong , Yong-Min Shin

The ETAS models are currently the most popular in the field of earthquake forecasting. The MCMC method is time-consuming and limited by parameter correlation while bringing parameter uncertainty. The INLA-based method "inlabru" solves these…

应用统计 · 统计学 2025-10-17 Ziwen Zhong