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We propose a fast and scalable optimization method to solve chance or probabilistic constrained optimization problems governed by partial differential equations (PDEs) with high-dimensional random parameters. To address the critical…

最优化与控制 · 数学 2020-11-20 Peng Chen , Omar Ghattas

Automated event detection has emerged as one of the fundamental practices to monitor the behavior of technical systems by means of sensor data. In the automotive industry, these methods are in high demand for tracing events in time series…

机器学习 · 计算机科学 2023-10-18 Bahareh Medghalchi , Andreas Vogel

We give a new algorithmic method of detection of atypical values for 2-variables real polynomial functions with emphasis on the effectivity.

代数几何 · 数学 2022-10-13 Gabriel E. Monsalve

The next generation of observatories will facilitate the discovery of new types of astrophysical transients. The detection of such phenomena, whose characteristics are presently poorly constrained, will hinge on the ability to perform blind…

高能天体物理现象 · 物理学 2019-08-06 Iftach Sadeh

In this paper, we propose POTATOES (Partitioning OverfiTting AuTOencoder EnSemble), a new method for unsupervised outlier detection (UOD). More precisely, given any autoencoder for UOD, this technique can be used to improve its accuracy…

机器学习 · 计算机科学 2021-09-29 Boris Lorbeer , Max Botler

Recent developments in jet clustering are reviewed. We present a list of fast and infrared and collinear safe algorithms, and also describe new tools like jet areas. We show how these techniques can be applied to the study of underlying…

高能物理 - 唯象学 · 物理学 2009-06-10 Matteo Cacciari

The analysis of observable phenomena (for instance, in biology or physics) allows the detection of dynamical behaviors and, conversely, starting from a desired behavior allows the design of objects exhibiting that behavior in engineering.…

离散数学 · 计算机科学 2026-04-10 Antonio E. Porreca , Marius Rolland

We propose a novel approach for performing dynamical system identification, based upon the comparison of simulated and observed physical invariant measures. While standard methods adopt a Lagrangian perspective by directly treating…

动力系统 · 数学 2025-02-11 Jonah Botvinick-Greenhouse

It is true that different approaches have been utilised to accelerate the computation of discrete logarithm problem on elliptic curves with Pollard's Rho method. However, trapping in cycles fruitless will be obtained by using the random…

密码学与安全 · 计算机科学 2016-07-21 Ammar Ali Neamah

This paper presents a technique which exploits the occurrence of certain events as observed by different sensors, to detect and classify objects. This technique explores the extent of dependence between features being observed by the…

信号处理 · 电气工程与系统科学 2021-03-08 Siddharth Roheda , Hamid Krim , Zhi-Quan Luo , Tianfu Wu

In this brief, we discuss the implementation of a third order semi-implicit differentiator as a complement of the recent work by the author that proposes an interconnected semi-implicit Euler double differentiators algorithm through Taylor…

数值分析 · 数学 2024-08-02 Loïc Michel , Jean-Pierre Barbot

Events detected from social media streams often include early signs of accidents, crimes or disasters. Therefore, they can be used by related parties for timely and efficient response. Although significant progress has been made on event…

社会与信息网络 · 计算机科学 2020-02-12 Yi Han , Shanika Karunasekera , Christopher Leckie

The automatic detection of events in sport videos has im-portant applications for data analytics, as well as for broadcasting andmedia companies. This paper presents a comprehensive approach for de-tecting a wide range of complex events in…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Lia Morra , Francesco Manigrasso , Giuseppe Canto , Claudio Gianfrate , Enrico Guarino , Fabrizio Lamberti

The recent introduction of synchrophasor technology into power distribution systems has given impetus to various monitoring, diagnostic, and control applications, such as system identification and event detection, which are crucial for…

系统与控制 · 计算机科学 2020-09-17 Omid Ardakanian , Ye Yuan , Roel Dobbe , Alexandra von Meier , Steven Low , Claire Tomlin

We present different methods of unsupervised learning which can be used for outlier detection in high energy nuclear collisions. The UrQMD model is used to generate the bulk background of events as well as different variants of outlier…

高能物理 - 实验 · 物理学 2021-05-26 Punnathat Thaprasop , Kai Zhou , Jan Steinheimer , Christoph Herold

Wear and tear detection in fleet and shared vehicle systems is a critical challenge, particularly in rental and car-sharing services, where minor damage, such as dents, scratches, and underbody impacts, often goes unnoticed or is detected…

机器学习 · 计算机科学 2025-10-21 Sara Khan , Mehmed Yüksel , Frank Kirchner

Event detection in time series is a challenging task due to the prevalence of imbalanced datasets, rare events, and time interval-defined events. Traditional supervised deep learning methods primarily employ binary classification, where…

机器学习 · 统计学 2024-09-16 Menouar Azib , Benjamin Renard , Philippe Garnier , Vincent Génot , Nicolas André

Reliable detection and classification of power system events are critical for maintaining grid stability and situational awareness. Existing approaches often depend on limited labeled datasets, which restricts their ability to generalize to…

信号处理 · 电气工程与系统科学 2026-05-22 Yi Hu , Zheyuan Cheng

High-dimensional data poses unique challenges in outlier detection process. Most of the existing algorithms fail to properly address the issues stemming from a large number of features. In particular, outlier detection algorithms perform…

机器学习 · 计算机科学 2020-09-22 Firuz Kamalov , Ho Hon Leung

We combine Tyler's robust estimator of the dispersion matrix with nonlinear shrinkage. This approach delivers a simple and fast estimator of the dispersion matrix in elliptical models that is robust against both heavy tails and high…

统计方法学 · 统计学 2023-05-31 Simon Hediger , Jeffrey Näf , Michael Wolf