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A deep learning model is presented to nowcast the occurrence of lightning at a five-minute time resolution 60 minutes into the future. The model is based on a recurrent-convolutional architecture that allows it to recognize and predict the…

大气与海洋物理 · 物理学 2023-03-16 Jussi Leinonen , Ulrich Hamann , Urs Germann

Volatility is a natural risk measure in finance as it quantifies the variation of stock prices. A frequently considered problem in mathematical finance is to forecast different estimates of volatility. What makes it promising to use deep…

统计金融 · 定量金融 2020-09-14 Bernadett Aradi , Gábor Petneházi , József Gáll

The 2014-2015 "Monster"/"Super" El Ni\~no failed to be predicted one year earlier due to the growing importance of a new type of El Ni\~no, El Ni\~no Modoki, which reportedly has much lower forecast skill with the classical models. In this…

大气与海洋物理 · 物理学 2021-04-13 X. San Liang , Fen Xu , Yineng Rong

As tropical cyclones become more intense due to climate change, the rise of Al-based modelling provides a more affordable and accessible approach compared to traditional methods based on mathematical models. This work leverages generative…

大气与海洋物理 · 物理学 2024-07-31 Pritthijit Nath , Pancham Shukla , Shuai Wang , César Quilodrán-Casas

As an object of study, we chose the global activity of strong earthquakes (M > 7). The subject of the study is the waiting time for the next strong earthquake. The purpose of the study is to compare two distributions of waiting time, one of…

地球物理 · 物理学 2022-09-02 A. V. Guglielmi , O. D. Zotov

The starting point of the present review is to acknowledge that there are innumerable reports of non-seismic types of earthquake precursory phenomena that are intermittent and seem not to occur systematically, while associated reports are…

地球物理 · 物理学 2017-11-07 Friedemann Freund , Guy Ouillon , John Scoville , Didier Sornette

The prediction of the intensity, location and time of the landfall of a tropical cyclone well advance in time and with high accuracy can reduce human and material loss immensely. In this article, we develop a Long Short-Term memory based…

机器学习 · 计算机科学 2021-03-31 Sandeep Kumar , Koushik Biswas , Ashish Kumar Pandey

Predictive uncertainty estimation is an essential next step for the reliable deployment of deep object detectors in safety-critical tasks. In this work, we focus on estimating predictive distributions for bounding box regression output with…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Ali Harakeh , Steven L. Waslander

The linear fractional stable motion (LFSM) extends the fractional Brownian motion (fBm) by considering $\alpha$-stable increments. We propose a method to forecast future increments of the LFSM from past discrete-time observations, using the…

统计方法学 · 统计学 2026-05-12 Matthieu Garcin , Karl Sawaya , Thomas Valade

Providing the users of a dynamic tolling system with predictions of tolling prices and the travel time difference between the toll road and the alternative routes enables them to make their travel decisions before starting their trip. This…

机器学习 · 计算机科学 2021-04-23 Sara Zahedian , Amir Nohekhan , Kaveh Farokhi Sadabadi

A nonanticipative analog method is used for the long-term forecast of air temperature extremes. The data to be used for prediction include average daily air temperature, mean visibility, mean wind speed, mean dew point, maximum and minimum…

应用统计 · 统计学 2015-07-14 Dmytro Zubov , Humberto A. Barbosa , Gregory S. Duane

Automated forecasts serve important role in space weather science, by providing statistical insights to flare-trigger mechanisms, and by enabling tailor-made forecasts and high-frequency forecasts. Only by realtime forecast we can…

Automated detection of software vulnerabilities is a fundamental problem in software security. Existing program analysis techniques either suffer from high false positives or false negatives. Recent progress in Deep Learning (DL) has…

软件工程 · 计算机科学 2020-09-16 Saikat Chakraborty , Rahul Krishna , Yangruibo Ding , Baishakhi Ray

Standard approaches to forecasting the weekly number of earthquakes on a spatial grid rely on the Poisson distribution with a single global dispersion assumption. We show that this assumption is systematically violated in seismic data from…

地球物理 · 物理学 2026-05-21 Alim Igilik

Deferrable load control is essential for handling the uncertainties associated with the increasing penetration of renewable generation. Model predictive control has emerged as an effective approach for deferrable load control, and has…

最优化与控制 · 数学 2014-09-23 Niangjun Chen , Lingwen Gan , Steven H. Low , Adam Wierman

Space weather events may cause damage to several fields, including aviation, satellites, oil and gas industries, and electrical systems, leading to economic and commercial losses. Solar flares are one of the most significant events, and…

太阳与恒星天体物理 · 物理学 2020-06-25 T. Cinto , A. L. S. Gradvohl , G. P. Coelho , A. E. A. da Silva

Fireballs are infrequently recorded by seismic sensors on the ground. If recorded, they are usually reported as one-off events. This study is the first seismic bulk analysis of the largest single fireball data set, observed by the Desert…

地球与行星天体物理 · 物理学 2021-07-01 T. Neidhart , K. Miljković , E. K. Sansom , H. A. R. Devillepoix , T. Kawamura , J. -L. Dimech , M. A. Wieczorek , P. A. Bland

Catastrophic failures have momentous impact in many scientific and technological fields but remain challenging to understand and predict. One key difficulty lies in the burstiness of rupture phenomena, which typically involve a series of…

地球物理 · 物理学 2024-09-19 Qinghua Lei , Didier Sornette

We argue that long-term forecasting requires learning local Jacobians with explicit spectral structure, going beyond simple conditional mean matching. Our method, Fern, invokes Brenier's theorem to directly parameterize the Jacobian as a…

机器学习 · 计算机科学 2026-05-05 Qilin Wang

Using classical molecular dynamics simulations we examine the formation of craters during 0.4 - 100 keV Xe bombardment of Au. Our simulation results, and comparison with experiments and simulations of other groups, are used to examine to…

材料科学 · 物理学 2007-05-23 E. M. Bringa , K. Nordlund , J. Keinonen
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