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We present the improved visibility based Tapered Gridded Estimator (TGE) for the power spectrum of the diffuse sky signal. The visibilities are gridded to reduce the computation, and tapered through a convolution to suppress the…

Cosmology and Nongalactic Astrophysics · Physics 2017-07-25 Samir Choudhuri , Somnath Bharadwaj , Suman Chatterjee , Sk. Saiyad Ali , Nirupam Roy , Abhik Ghosh

Most existing Low-light Image Enhancement (LLIE) methods either directly map Low-Light (LL) to Normal-Light (NL) images or use semantic or illumination maps as guides. However, the ill-posed nature of LLIE and the difficulty of semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Han Zhou , Wei Dong , Xiaohong Liu , Shuaicheng Liu , Xiongkuo Min , Guangtao Zhai , Jun Chen

The radiance of thermal emission, as described by Planck law, depends only on the emissivity and temperature of a body, and increases monotonically with the temperature rise at any emitted wavelength. Nonthermal radiation, such as…

Optics · Physics 2020-12-23 N Kruger , M Kurtulik , N Revivo , A Manor , T Sabapathy , C Rotschild

Robust Multi-Task Learning (MTL) is crucial for autonomous systems operating in real-world environments, where adverse weather conditions can severely degrade model performance and reliability. In this paper, we introduce RobuMTL, a novel…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Tasneem Shaffee , Sherief Reda

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…

Solar and Stellar Astrophysics · Physics 2020-06-25 T. Cinto , A. L. S. Gradvohl , G. P. Coelho , A. E. A. da Silva

The growing demand for low-latency, energy-efficient inference in large language models (LLMs) has catalyzed interest in heterogeneous architectures. While GPUs remain dominant, they are poorly suited for integration with emerging…

Applied Physics · Physics 2025-09-23 Ryan Tomich , Zhizhen Zhong , Dirk Englund

Using a significantly enlarged \textit{Fermi}-LAT BL Lac objects (BL Lacs) sample, we construct the gamma-ray luminosity function (GLF) of BL Lacs, by the joint use of the space density distribution and source counts distribution. We use…

High Energy Astrophysical Phenomena · Physics 2019-10-02 Yankun Qu , Houdun Zeng , Dahai Yan

Much of a solar flare's energy is thought to be released in the continuum. The optical continuum (white light) is of special interest due to the ability to observe it from the ground. We aim to investigate the prevalence of white-light (WL)…

Solar and Stellar Astrophysics · Physics 2026-01-21 Sascha Ornig , Mats Carlsson

Measurements of line-of-sight dependent clustering via the galaxy power spectrum's multipole moments constitute a powerful tool for testing theoretical models in large-scale structure. Recent work shows that this measurement, including a…

Cosmology and Nongalactic Astrophysics · Physics 2017-07-19 Nick Hand , Yin Li , Zachary Slepian , Uros Seljak

The surface states of the active TiO2 layer is crucial while fabricating an efficient solar cell. This work experimentally analyses the effect of exposing TiO2 based electron transport layer (ETL) to the ultraviolet-ozone (UV-O3) and…

Applied Physics · Physics 2020-02-28 Chandan Dawo , Mohammad Adil Afroz , Parameswar Krishnan Iyer , Harsh Chaturvedi

We present an efficient algorithm for the least squares parameter fitting optimized for component separation in multi-frequency CMB experiments. We sidestep some of the problems associated with non-linear optimization by taking advantage of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-26 Rishi Khatri

Autonomous robotic platforms are playing a growing role across the emergency services sector, supporting missions such as search and rescue operations in disaster zones and reconnaissance. However, traditional red-green-blue (RGB) detection…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Aahan Sachdeva , Dhanvinkumar Ganeshkumar , James E. Gallagher , Tyler Treat , Edward J. Oughton

Solar photovoltaic systems are increasing in size and number on the grid. In regions with high penetration, such as California, PV systems serve multiple functions, including peak shaving and demand response. Therefore, the criticality of…

Systems and Control · Electrical Eng. & Systems 2025-08-26 Peng Sang , Santhosh Balasubramanian , Amritanshu Pandey

Predicting the short-term power output of a photovoltaic panel is an important task for the efficient management of smart grids. Short-term forecasting at the minute scale, also known as nowcasting, can benefit from sky images captured by…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Jinsong Zhang , Rodrigo Verschae , Shohei Nobuhara , Jean-François Lalonde

This project presents an extension to the GraphCast model, a state-of-the-art graph neural network (GNN) for global weather forecasting, by integrating solar energy production forecasting capabilities. The proposed approach leverages the…

Machine Learning · Computer Science 2024-06-21 Cale Colony , Razan Andigani

Shading faults remain one of the most critical challenges affecting photovoltaic (PV) system efficiency, as they not only reduce power generation but also disturb maximum power point tracking (MPPT). To address this issue, this study…

Retrieval of vegetation properties from satellite and airborne optical data usually takes place after atmospheric correction, yet it is also possible to develop retrieval algorithms directly from top-of-atmosphere (TOA) radiance data. One…

For short-term solar irradiance forecasting, the traditional point forecasting methods are rendered less useful due to the non-stationary characteristic of solar power. The amount of operating reserves required to maintain reliable…

Machine Learning · Computer Science 2023-08-02 Sakshi Mishra , Praveen Palanisamy

Two-stage least squares (TSLS) estimators and variants thereof are widely used to infer the effect of an exposure on an outcome using instrumental variables (IVs). They belong to a wider class of two-stage IV estimators, which are based on…

Methodology · Statistics 2015-10-08 Stijn Vansteelandt , Vanessa Didelez

RR Lyrae stars (RRLs) are old pulsating variables widely used as metallicity tracers due to the correlation between their metal abundances and light curve morphology. With ESA Gaia DR3 providing light curves for about 270,000 RRLs, there is…

Solar and Stellar Astrophysics · Physics 2025-05-28 Lorenzo Monti , Tatiana Muraveva , Alessia Garofalo , Gisella Clementini , Maria Letizia Valentini