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Using solar power in the process industry can reduce greenhouse gas emissions and make the production process more sustainable. However, the intermittent nature of solar power renders its usage challenging. Building a model to predict…

系统与控制 · 电气工程与系统科学 2022-05-17 Yu Yang , Jia Mao , Richard Nguyen , Annas Tohmeh , Hen-Geul Yeh

Current solar flare predictions often lack precise quantification of their reliability, resulting in frequent false alarms, particularly when dealing with datasets skewed towards extreme events. To improve the trustworthiness of space…

太阳与恒星天体物理 · 物理学 2026-03-10 Jinsu Hong , Chetraj Pandey , Berkay Aydin

The prediction of solar flares is of practical and scientific interest; however, many machine learning methods used for this prediction task do not provide the physical explanations behind a model's performance. We made use of two recently…

太阳与恒星天体物理 · 物理学 2023-03-08 Brandon Panos , Lucia Kleint , Jonas Zbinden

Based on several magnetic nonpotentiality parameters obtained from the vector photospheric active region magnetograms obtained with the Solar Magnetic Field Telescope at the Huairou Solar Observing Station over two solar cycles, a machine…

太阳与恒星天体物理 · 物理学 2013-08-29 Xiao Yang , GangHua Lin , HongQi Zhang , XinJie Mao

Reinforcement Learning (RL) provides a powerful framework for decision-making in complex environments. However, implementing RL in hardware-efficient and bio-inspired ways remains a challenge. This paper presents a novel Spiking Neural…

神经与进化计算 · 计算机科学 2023-08-09 Sergio F. Chevtchenko , Yeshwanth Bethi , Teresa B. Ludermir , Saeed Afshar

In this paper, we propose a novel loss function aimed at optimizing the binary flare prediction problem by embedding the intrinsic ordinal flare characteristics into the binary cross-entropy (BCE) loss function. This modification is…

计算机视觉与模式识别 · 计算机科学 2024-08-22 Chetraj Pandey , Anli Ji , Jinsu Hong , Rafal A. Angryk , Berkay Aydin

The uncertainty of the energy generated by photovoltaic systems incurs an additional cost for a guaranteed, reliable supply of energy (i.e., energy storage). This investigation aims to decrease the additional cost by introducing…

机器学习 · 计算机科学 2023-01-19 Guillermo Terrén-Serrano , Manel Martínez-Ramón

We present the results from the first ensemble prediction model for major solar flares (M and X classes). The primary aim of this investigation is to explore the construction of an ensemble for an initial prototyping of this new concept.…

空间物理 · 物理学 2016-01-20 J. A. Guerra , A. Pulkkinen , V. M. Uritsky

The energy transition towards photovoltaic solar energy has evolved to be a viable and sustainable source for the generation of electricity. It has effectively emerged as an alternative to the conventional mode of electricity generation for…

图像与视频处理 · 电气工程与系统科学 2023-01-02 Divyanshi Dwivedi , Pradeep Kumar Yemula , Mayukha Pal

Early detection of lung nodules is of great importance in lung cancer screening. Existing research recognizes the critical role played by CAD systems in early detection and diagnosis of lung nodules. However, many CAD systems, which are…

计算机视觉与模式识别 · 计算机科学 2018-10-18 Naji Khosravan , Ulas Bagci

In this paper, we tackle for the first time the problem of maximum likelihood (ML) estimation of the signal-to-noise ratio (SNR) parameter over time-varying single-input multiple-output (SIMO) channels. Both the data-aided (DA) and the…

应用统计 · 统计学 2014-11-19 Faouzi Bellili , Rabii Meftehi , Sofiene Affes , Alex Stephenne

Most solar applications and systems can be reliably used to generate electricity and power in many homes and offices. Recently, there is an increase in many solar required systems that can be found not only in electricity generation but…

机器学习 · 计算机科学 2021-04-07 Shahriar Rahman , Shazzadur Rahman , A K M Bahalul Haque

Solar flare forecasting mainly relies on photospheric magnetograms and associated physical features to predict forthcoming flares. However, it is believed that flare initiation mechanisms often originate in the chromosphere and the lower…

太阳与恒星天体物理 · 物理学 2024-10-22 Grégoire Francisco , Sabrina Guastavino , Teresa Barata , João Fernandes , Dario Del Moro

This paper considers a typical solar installations scenario with limited sensing resources. In the literature, there exist either day-ahead solar generation prediction methods with limited accuracy, or high accuracy short timescale methods…

应用统计 · 统计学 2015-08-12 Yubo Wang , Bin Wang , Rui Huang , Chi-Cheng Chu , Hemanshu R. Pota , Rajit Gadh

Solar flares - bursts of high-energy radiation responsible for severe space-weather effects - are a consequence of the occasional destabilization of magnetic fields rooted in active regions (ARs). The complexity of AR evolution is a barrier…

太阳与恒星天体物理 · 物理学 2019-05-27 Dattaraj B. Dhuri , Shravan M. Hanasoge , Mark C. M. Cheung

Early fault detection and fault prognosis are crucial to ensure efficient and safe operations of complex engineering systems such as the Spallation Neutron Source (SNS) and its power electronics (high voltage converter modulators).…

加速器物理 · 物理学 2022-10-03 Majdi I. Radaideh , Chris Pappas , Mark Wezensky , Pradeep Ramuhalli , Sarah Cousineau

We investigate the potential of machine learning (ML) methods to model small-scale galaxy clustering for constraining Halo Occupation Distribution (HOD) parameters. Our analysis reveals that while many ML algorithms report good statistical…

宇宙学与河外天体物理 · 物理学 2024-11-19 Abhishek Jana , Lado Samushia

This paper contributes to the growing body of research on deep learning methods for solar flare prediction, primarily focusing on highly overlooked near-limb flares and utilizing the attribution methods to provide a post hoc qualitative…

机器学习 · 计算机科学 2023-09-27 Chetraj Pandey , Rafal A. Angryk , Berkay Aydin

Solar based electricity generations have experienced strong and impactful growth in recent years. The regulation, scheduling, dispatching, and unit commitment of intermittent solar power is dependent on the accuracy of the forecasting…

系统与控制 · 电气工程与系统科学 2020-03-30 Shaktinarayana Mishra , Lokanath Tripathy , Prachitara Satapathy , P. K. Dash , Nitasha Sahani

A demonstrated failure mode for operational solar flare forecasting is the inability to forecast flares that occur near, or just beyond, the solar limb. To address this shortcoming, we develop a "4pi" full-heliosphere event forecasting…

太阳与恒星天体物理 · 物理学 2026-01-09 K. D. Leka , Eric L. Wagner , Lisa Upton , Bibhuti Kumar Jha , Kiran Jain , Sara Petty