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Time domain astronomy has emerged as a vibrant research field in recent years, focusing on celestial objects that exhibit variable magnitudes or positions. Given the urgency of conducting follow-up observations for such objects, the…

Instrumentation and Methods for Astrophysics · Physics 2023-10-12 Rui Sun , Peng Jia , Yongyang Sun , Zhimin Yang , Qiang Liu , Hongyan Wei

Object detection and tracking are challenging tasks for resource-constrained embedded systems. While these tasks are among the most compute-intensive tasks from the artificial intelligence domain, they are only allowed to use limited…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Xiaofan Zhang , Haoming Lu , Cong Hao , Jiachen Li , Bowen Cheng , Yuhong Li , Kyle Rupnow , Jinjun Xiong , Thomas Huang , Honghui Shi , Wen-mei Hwu , Deming Chen

This article is based on the tutorial we gave at the hands-on workshop of the ICRANet-ISFAHAN Astronomy Meeting. We first introduce the basic theory of machine learning and sort out the whole process of training a neural network. We then…

Instrumentation and Methods for Astrophysics · Physics 2023-02-14 Yu Wang , Rahim Moradi , Mohammad H. Zhoolideh Haghighi , Fatemeh Rastegarnia

We present the novel wide & deep neural network GalaxyNet, which connects the properties of galaxies and dark matter haloes, and is directly trained on observed galaxy statistics using reinforcement learning. The most important halo…

Astrophysics of Galaxies · Physics 2021-07-14 Benjamin P. Moster , Thorsten Naab , Magnus Lindström , Joseph A. O'Leary

SCYNet (SUSY Calculating Yield Net) is a tool for testing supersymmetric models against LHC data. It uses neural network regression for a fast evaluation of the profile likelihood ratio. Two neural network approaches have been developed:…

We present a single-dish mapping algorithm with a number of advantages over traditional techniques. (1) Our algorithm makes use of weighted modeling, instead of weighted averaging, to interpolate between signal measurements. This smooths…

We propose a new method for solving an important problem of astronomy that arises in observations with ultrahigh-angular-resolution interferometers. This method is based on the application of the theory of artificial neural networks. We…

Instrumentation and Methods for Astrophysics · Physics 2019-06-26 Alexander Shatskiy , Ivan Evgeniev

NeuroNet is a deep convolutional neural network mimicking multiple popular and state-of-the-art brain segmentation tools including FSL, SPM, and MALPEM. The network is trained on 5,000 T1-weighted brain MRI scans from the UK Biobank Imaging…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Martin Rajchl , Nick Pawlowski , Daniel Rueckert , Paul M. Matthews , Ben Glocker

Incorporating prior knowledge or specifications of input-output relationships into machine learning models has attracted significant attention, as it enhances generalization from limited data and yields conforming outputs. However, most…

Machine Learning · Computer Science 2025-10-21 Youngjae Min , Navid Azizan

Strong gravitational lensing is a powerful tool to provide constraints on galaxy mass distributions and cosmological parameters, such as the Hubble constant, $H_0$. Nevertheless, inference of such parameters from images of lensing systems…

Precise continuum normalisation of merged \'{e}chelle spectra is a demanding task necessary for various detailed spectroscopic analyses. Automatic methods have limited effectiveness due to the variety of features present in the spectra of…

Instrumentation and Methods for Astrophysics · Physics 2022-03-30 Tomasz Różański , Ewa Niemczura , Jakub Lemiesz , Natalia Posiłek , Paweł Różański

We propose a novel deep learning framework, named SYMHnet, which employs a graph neural network and a bidirectional long short-term memory network to cooperatively learn patterns from solar wind and interplanetary magnetic field parameters…

Instrumentation and Methods for Astrophysics · Physics 2024-02-28 Yasser Abduallah , Khalid A. Alobaid , Jason T. L. Wang , Haimin Wang , Vania K. Jordanova , Vasyl Yurchyshyn , Huseyin Cavus , Ju Jing

Deep neural networks are powerful tools for solving nonlinear problems in science and engineering, but training highly accurate models becomes challenging as problem complexity increases. Non-convex optimization and sensitivity to…

Machine Learning · Computer Science 2026-04-20 Ethan Mulle , Wei Kang , Qi Gong

Recently, Spiking Neural Networks (SNNs), enjoying extreme energy efficiency, have drawn much research attention on 2D visual recognition and shown gradually increasing application potential. However, it still remains underexplored whether…

Computer Vision and Pattern Recognition · Computer Science 2023-10-11 Dayong Ren , Zhe Ma , Yuanpei Chen , Weihang Peng , Xiaode Liu , Yuhan Zhang , Yufei Guo

Neural networks are increasingly used as fast surrogate models across various domains, but unconstrained predictions can violate physical, operational, or safety requirements. We propose SnareNet, a feasibility-controlled architecture to…

Machine Learning · Computer Science 2026-05-12 Ya-Chi Chu , Alkiviades Boukas , Madeleine Udell

Deep neural networks (DNNs) provide high image classification accuracy, but experience significant performance degradation when perturbation from various sources are present in the input. The lack of resilience to input perturbations makes…

Machine Learning · Computer Science 2019-09-13 Xueyuan She , Yun Long , Daehyun Kim , Saibal Mukhopadhyay

Wide field small aperture telescopes are widely used for optical transient observations. Detection and classification of astronomical targets in observed images are the most important and basic step. In this paper, we propose an…

Instrumentation and Methods for Astrophysics · Physics 2020-05-06 Peng Jia , Qiang Liu , Yongyang Sun

We propose a new sequential classification model for astronomical objects based on a recurrent convolutional neural network (RCNN) which uses sequences of images as inputs. This approach avoids the computation of light curves or difference…

In modern analysis pipelines, Einstein-Boltzmann Solvers (EBSs) are an invaluable tool for obtaining CMB and matter power spectra. To accelerate the computation of these observables, the CosmicNet strategy is to replace the bottleneck of an…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-23 Sven Günther , Julien Lesgourgues , Georgios Samaras , Nils Schöneberg , Florian Stadtmann , Christian Fidler , Jesús Torrado

Most existing star-galaxy classifiers depend on the reduced information from catalogs, necessitating careful data processing and feature extraction. In this study, we employ a supervised machine learning method (GoogLeNet) to automatically…

Astrophysics of Galaxies · Physics 2024-09-23 Shiliang Zhang , Guanwen Fang , Jie Song , Ran Li , Yizhou Gu , Zesen Lin , Chichun Zhou , Yao Dai , Xu Kong
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