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In this paper, a deep convolutional neural network architecture for galaxies classification is presented. The galaxy can be classified based on its features into main three categories Elliptical, Spiral, and Irregular. The proposed deep…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Nour Eldeen M. Khalifa , Mohamed Hamed N. Taha , Aboul Ella Hassanien , I. M. Selim

Remarkable observational advances have established a compelling cross-validated model of the Universe. Yet, two key pillars of this model -- dark matter and dark energy -- remain mysterious. Sky surveys that map billions of galaxies to…

Distributed, Parallel, and Cluster Computing · Computer Science 2012-11-28 Salman Habib , Vitali Morozov , Hal Finkel , Adrian Pope , Katrin Heitmann , Kalyan Kumaran , Tom Peterka , Joe Insley , David Daniel , Patricia Fasel , Nicholas Frontiere , Zarija Lukic

Computational Grids, coupling geographically distributed resources such as PCs, workstations, clusters, and scientific instruments, have emerged as a next generation computing platform for solving large-scale problems in science,…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-05-23 David Abramson , Rajkumar Buyya , Jonathan Giddy

For a system-level design of Networks-on-Chip for 3D heterogeneous System-on-Chip (SoC), the locations of components, routers and vertical links are determined from an application model and technology parameters. In conventional methods,…

Hardware Architecture · Computer Science 2019-10-04 Jan Moritz Joseph , Dominik Ermel , Lennart Bamberg , Alberto García-Ortiz , Thilo Pionteck

In order to profit from the high granularity of the calorimeters proposed for the ILC that are suitable for the Particle Flow Approach, specialised clustering algorithms have to be developped. GARLIC is such an algorithm with the goal to…

High Energy Physics - Experiment · Physics 2009-02-19 Marcel Reinhard , Jean-Claude Brient

Advances in quantum technologies are accelerating the demand for optical quantum state sensors that combine high precision, versatility, and scalability within a unified hardware platform. Quantum reservoir computing offers a powerful route…

The identification of physically associated kiloparsec-scale quasar pairs is important for understanding galaxy evolution, the growth of supermassive black holes, and their co-evolution with host galaxies. However, their rarity and the high…

Astrophysics of Galaxies · Physics 2026-05-12 Xingyu Zhu , Qihang Chen , Liang Jing , Zhuojun Deng , Jun-Qing Xia , Yanxia Zhang , Jianghua Wu

We compare the efficiency of weak lensing-selected galaxy clusters counts and of the weak lensing bispectrum at capturing non-Gaussian features in the dark matter distribution. We use the halo model to compute the weak lensing power…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Joel Berge , Adam Amara , Alexandre Refregier

The third US Naval Observatory (USNO) CCD Astrograph Catalog, UCAC3 was released at the IAU General Assembly on 2009 August 10. It is a highly accurate, all-sky astrometric catalog of about 100 million stars in the R = 8 to 16 magnitude…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 Norbert Zacharias

The Globus Data Grid architecture provides a scalable infrastructure for the management of storage resources and data that are distributed across Grid environments. These services are designed to support a variety of scientific…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-05-23 Sudharshan Vazhkudai , Steven Tuecke , Ian Foster

As a step towards our understanding of galaxy evolution and for testing predictions of cosmological models we started a survey for galaxy clusters intending to identify candidates out to redshifts of ~1.5: HIROCS (= Heidelberg…

Astrophysics · Physics 2009-11-10 S. Falter , H. -J. Roeser , H. Hippelein , E. Bell , C. Wolf

The past decade has witnessed order of magnitude increases in computing power, data storage capacity and network speed, giving birth to applications which may handle large data volumes of increased complexity, distributed over the Internet.…

Databases · Computer Science 2007-05-23 F Estrella , C del Frate , T Hauer , R McClatchey , M Odeh , D Rogulin , S R Amendolia , D Schottlander , T Solomonides , R Warren

We present the results of methodological works on automated analysis of the large scale distribution of galaxies. Selecting candidates for clusters and groups of galaxies was carried out using two complementary methods of determining the…

Astrophysics of Galaxies · Physics 2020-01-08 Aleksandra Grokhovskaya , Sergei N. Dodonov

It is developed a very complex system (hardware/software) to detect luminosity variations connected with the discovery of new planets outside the Solar System. Traditional imaging approaches are very demanding in terms of computing time;…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 G. Iovane

Place Recognition enables the estimation of a globally consistent map and trajectory by providing non-local constraints in Simultaneous Localisation and Mapping (SLAM). This paper presents Locus, a novel place recognition method using 3D…

The particle identification (PID) of hadrons plays a crucial role in particle physics experiments, especially in flavor physics and jet tagging. The cluster-counting method, which measures the number of primary ionizations in gaseous…

High Energy Physics - Experiment · Physics 2025-05-14 Zhefei Tian , Guang Zhao , Linghui Wu , Zhenyu Zhang , Xiang Zhou , Shuiting Xin , Shuaiyi Liu , Gang Li , Mingyi Dong , Shengsen Sun

Deep B,V time-series photometry obtained with the ESO Very Large Telescope has been used to identify variable stars in the dwarf irregular galaxy NGC 6822. We surveyed a 6.8x6.8 arcmin area of the galaxy and detected a total number of 390…

Astrophysics · Physics 2009-11-10 L. Baldacci , L. Rizzi , G. Clementini , E. V. Held

A comprehensive multicolor survey was undertaken to investigate global optical properties of Abell clusters of galaxies. This survey was christened the "Low-Redshift Cluster Optical Survey" (LOCOS). LOCOS was devised to search for patterns…

Astrophysics · Physics 2007-05-23 Omar Lopez-Cruz

The Discriminative Optimization (DO) algorithm has been proved much successful in 3D point cloud registration. In the original DO, the feature (descriptor) of two point cloud was defined as a histogram, and the element of histogram…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Jia Wang , Ping Wang , Biao Li , Ruigang Fu , Junzheng Wu

The four-year Kepler mission collected long cadence images of the open clusters NGC 6791 and NGC 6819, known as "superstamps." Each superstamp region is a 200-pixel square that captures thousands of cluster members, plus foreground and…

Solar and Stellar Astrophysics · Physics 2022-02-16 Isabel L. Colman , Timothy R. Bedding , Daniel Huber , Hans Kjeldsen
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