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Gravitationally lensed sources may have unresolved or blended multiple images, and for time varying sources the lightcurves from individual images can overlap. We use convolutional neural nets to both classify the lightcurves as due to…

天体物理仪器与方法 · 物理学 2022-07-28 Mikhail Denissenya , Eric V. Linder

This paper presents a Deep Learning (DL) framework for 48-hour forecasting of temperature, solar irradiance, and relative humidity to support Model Predictive Control (MPC) in smart HVAC systems. The approach employs a stacked Bidirectional…

机器学习 · 计算机科学 2025-09-01 Georgios Vamvouras , Konstantinos Braimakis , Christos Tzivanidis

Probing properties of neutron stars from photometric observations of these objects helps us answer crucial questions at the forefront of multi-messenger astronomy, such as, what is behavior of highest density matter in extreme environments…

高能天体物理现象 · 物理学 2025-10-22 Abu Bucker Siddik , Diane Oyen , Soumi De , Greg Olmschenk , Constantinos Kalapotharakos

Despite the advances in the field of solar energy, improvements of solar forecasting techniques, addressing the intermittent electricity production, remain essential for securing its future integration into a wider energy supply. A…

计算机视觉与模式识别 · 计算机科学 2020-05-25 Quentin Paletta , Joan Lasenby

Astronomy light curves are sparse, gappy, and heteroscedastic. As a result standard time series methods regularly used for financial and similar datasets are of little help and astronomers are usually left to their own instruments and…

Ahead-of-time forecasting of incident solar-irradiance on a panel is indicative of expected energy yield and is essential for efficient grid distribution and planning. Traditionally, these forecasts are based on meteorological physics…

计算机视觉与模式识别 · 计算机科学 2019-01-16 Talha A. Siddiqui , Samarth Bharadwaj , Shivkumar Kalyanaraman

Near infrared diffuse optical tomography (DOT) provides an imaging modality for the oxygenation of tissue. In this paper, we propose a novel machine learning algorithm based on time-domain radiative transfer equation. We use temporal…

医学物理 · 物理学 2020-11-26 Yu-ichi Takamizu , Masayuki Umemura , Hidenobu Yajima , Makito Abe , Yoko Hoshi

Deep neural networks have received considerable attention in clinical imaging, particularly with respect to the reduction of radiation risk. Lowering the radiation dose by reducing the photon flux inevitably results in the degradation of…

图像与视频处理 · 电气工程与系统科学 2021-09-14 Khalid L. Alsamadony , Ertugrul U. Yildirim , Guenther Glatz , Umair bin Waheed , Sherif M. Hanafy

In this paper we present a deep learning method to predict the temporal evolution of dissipative dynamic systems. We propose using both geometric and thermodynamic inductive biases to improve accuracy and generalization of the resulting…

机器学习 · 计算机科学 2022-06-07 Quercus Hernández , Alberto Badías , Francisco Chinesta , Elías Cueto

The distribution of absorbed dose in radionuclide therapy with Lu$^{177}$ can be approximated by convolving an image of the time-integrated activity distribution with a dose voxel kernel representing different tissue types. This fast but…

机器学习 · 统计学 2026-03-25 Luciano Melodia

Classifying the state of the atmosphere into a finite number of large-scale circulation regimes is a popular way of investigating teleconnections, the predictability of severe weather events, and climate change. Here, we investigate a…

机器学习 · 计算机科学 2022-05-02 Andreas Holm Nielsen , Alexandros Iosifidis , Henrik Karstoft

Lightning plays a crucial role in the Earth's climate system, yet existing parameterizations for use in forecasting and earth system models show room for improvement in capturing spatial and temporal variations in its frequency. This study…

大气与海洋物理 · 物理学 2025-09-15 Randall Jones , Joel A. Thornton , Chris J. Wright , Robert Holzworth

Perimetric measurements provide insight into a patient's peripheral vision and day-to-day functioning and are the main outcome measure for identifying progression of visual damage from glaucoma. However, visual field data can be noisy,…

图像与视频处理 · 电气工程与系统科学 2024-11-20 Sean Wu , Jun Yu Chen , Vahid Mohammadzadeh , Sajad Besharati , Jaewon Lee , Kouros Nouri-Mahdavi , Joseph Caprioli , Zhe Fei , Fabien Scalzo

The next great leap toward improving treatment of cancer with radiation will require the combined use of online adaptive and magnetic resonance guided radiation therapy techniques with automatic X-ray beam orientation selection.…

医学物理 · 物理学 2019-08-14 Ryan Neph , Yangsibo Huang , Youming Yang , Ke Sheng

A machine learning approach has been implemented to measure the electron temperature directly from the emission spectra of a tokamak plasma. This approach utilized a neural network (NN) trained on a dataset of 1865 time slices from…

等离子体物理 · 物理学 2021-04-14 C. M. Samuell , A. G. Mclean , C. A. Johnson , F. Glass , A. E. Jaervinen

We present a study of using machine learning to enhance hohlraum design for opacity measurement experiments. For opacity experiments we desire a hohlraum that, when its interior walls are illuminated by theNational Ignition Facility (NIF)…

仪器与探测器 · 物理学 2021-03-17 Ryan G. McClarren , I. L. Tregillis , Todd J. Urbatsch , E. S. Dodd

We used a convolutional neural network to infer stellar rotation periods from a set of synthetic light curves simulated with realistic spot evolution patterns. We convolved these simulated light curves with real TESS light curves containing…

太阳与恒星天体物理 · 物理学 2022-03-30 Zachary R. Claytor , Jennifer L. van Saders , Joe Llama , Peter Sadowski , Brandon Quach , Ellis Avallone

Using transient grating spectroscopy (TGS) we measure the thermal diffusivity of tungsten exposed to different levels of 20 MeV self-ion irradiation. Damage as low as 3.2 x 10^-4 displacements per atom (dpa) causes a measurable reduction in…

材料科学 · 物理学 2020-02-05 Abdallah Reza , Hongbing Yu , Kenichiro Mizohata , Felix Hofmann

Widely deployed for fever detection, infrared thermometers (IRTs) enable rapid non-contact measurement of core body temperature but are inaccurate in unconstrained environments when skin temperature is transient. In this work, we present…

图像与视频处理 · 电气工程与系统科学 2025-12-25 Ellin Q. Zhao , Alexander Vilesov , Pradyumna Chari , Laleh Jalilian , Achuta Kadambi

We use machine learning models to predict ion density and electron temperature from visible emission spectra, in a high energy density pulsed-power-driven aluminum plasma, generated by an exploding wire array. Radiation transport…

等离子体物理 · 物理学 2023-09-01 Rishabh Datta , Faez Ahmed , Jack D Hare
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