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Data intensive applications often involve the analysis of large datasets that require large amounts of compute and storage resources. While dedicated compute and/or storage farms offer good task/data throughput, they suffer low resource…

分布式、并行与集群计算 · 计算机科学 2008-08-27 Ioan Raicu , Yong Zhao , Ian Foster , Alex Szalay

The era of data-intensive astronomy is being ushered in with the increasing size and complexity of observational data across wavelength and time domains, the development of algorithms to extract information from this complexity, and the…

天体物理仪器与方法 · 物理学 2020-05-20 Mubdi Rahman , Dustin Lang , Renée Hložek , Jo Bovy , Laurence Perreault-Levasseur

In Astrophysics, the identification of candidate Globular Clusters through deep, wide-field, single band HST images, is a typical data analytics problem, where methods based on Machine Learning have revealed a high efficiency and…

天体物理仪器与方法 · 物理学 2017-10-12 Giuseppe Angora , Massimo Brescia , Giuseppe Riccio , Stefano Cavuoti , Maurizio Paolillo , Thomas H. Puzia

In nuclear physics experiments involving in-flight fragmentation of ions, usually a large number of different nuclei is produced and various detection systems are employed to identify the species event by event, e.g. by measuring their…

核实验 · 物理学 2007-05-23 A. Bürger

Astronomy is undergoing through a methodological revolution triggered by an unprecedented wealth of complex and accurate data. DAMEWARE (DAta Mining & Exploration Web Application and REsource) is a general purpose, Web-based, Virtual…

Optimising use of the Web (WWW) for LHC data analysis is a complex problem and illustrates the challenges arising from the integration of and computation across massive amounts of information distributed worldwide. Finding the right piece…

仪器与探测器 · 物理学 2014-11-18 Nigel Baker , Peter Brooks , Richard McClatchey , Zsolt Kovacs , Jean-Marie Le Goff

Suppose an astronomer is equipped with a device capable of detecting emissions -- whether they be electromagnetic, gravitational, or neutrino -- from transient sources distributed throughout the cosmos. Because of source rate density…

天体物理学 · 物理学 2009-11-11 D. M. Coward , R. R. Burman

The primary challenge in the study of explosive astrophysical transients is their detection and characterisation using multiple messengers. For this purpose, we have developed a new data-driven discovery framework, based on deep learning.…

高能天体物理现象 · 物理学 2020-05-14 Iftach Sadeh

For the successful development of the astrophysics and, accordingly, for obtaining more complete knowledge of the Universe, it is extremely important to combine and comprehensively analyze information of various types (e.g., about charged…

分布式、并行与集群计算 · 计算机科学 2018-11-16 Alexander Kryukov , Andrey Demichev

One of the fundamental problems in machine learning is the estimation of a probability distribution from data. Many techniques have been proposed to study the structure of data, most often building around the assumption that observations…

机器学习 · 统计学 2013-02-22 Oren Rippel , Ryan Prescott Adams

A main challenge of data-driven sciences is how to make maximal use of the progressively expanding databases of experimental datasets in order to keep research cumulative. We introduce the idea of a modeling-based dataset retrieval engine…

定量方法 · 定量生物学 2015-06-19 Ali Faisal , Jaakko Peltonen , Elisabeth Georgii , Johan Rung , Samuel Kaski

Gamma-ray bursts provide what is probably one of the messiest of all astrophysical data sets. Burst class properties are indistinct, as overlapping characteristics of individual bursts are convolved with effects of instrumental and sampling…

To extract physics results from the recorded data, the LHC experiments are using Grid computing infrastructure. The event data processing on the Grid requires scalable access to non-event data (detector conditions, calibrations, etc.)…

数据库 · 计算机科学 2010-07-13 A. V. Vaniachine

Spatial data mining or Knowledge discovery in spatial database is the extraction of implicit knowledge, spatial relations and spatial patterns that are not explicitly stored in databases. Co-location patterns discovery is the process of…

数据库 · 计算机科学 2014-02-07 Mr. Rushirajsinh L. Zala , Mr. Brijesh B. Mehta , Mr. Mahipalsinh R. Zala

Currently, the processing of scientific data in astroparticle physics is based on various distributed technologies, the most common of which are Grid and cloud computing. The most frequently discussed approaches are focused on large and…

天体物理仪器与方法 · 物理学 2020-10-13 Alexander Kryukov , Igor Bychkov , Elena Korosteleva , Andrey Mikhailov , Minh-Duc Nguyen

Distributed data mining techniques and mainly distributed clustering are widely used in the last decade because they deal with very large and heterogeneous datasets which cannot be gathered centrally. Current distributed clustering…

数据库 · 计算机科学 2018-02-02 Malika Bendechache , M-Tahar Kechadi

The main objective of higher education institutions is to provide quality education to its students. One way to achieve highest level of quality in higher education system is by discovering knowledge for prediction regarding enrolment of…

信息检索 · 计算机科学 2012-01-18 Brijesh Kumar Baradwaj , Saurabh Pal

A distributed data warehouse system is one of the actual issues in the field of astroparticle physics. Famous experiments, such as TAIGA, KASCADE-Grande, produce tens of terabytes of data measured by their instruments. It is critical to…

Causal discovery algorithms based on probabilistic graphical models have emerged in geoscience applications for the identification and visualization of dynamical processes. The key idea is to learn the structure of a graphical model from…

机器学习 · 计算机科学 2015-12-29 Imme Ebert-Uphoff , Yi Deng

The nature of scientific and technological data collection is evolving rapidly: data volumes and rates grow exponentially, with increasing complexity and information content, and there has been a transition from static data sets to data…

天体物理仪器与方法 · 物理学 2016-11-17 S. G. Djorgovski , A. A. Mahabal , C. Donalek , M. J. Graham , A. J. Drake , M. Turmon , T. Fuchs