About: Column-oriented Data Store for Astrophysical Data

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1109/DEXA.2014.60
Description	Astrophysical databases have used proprietary formats (especially FITS format) to represent measured data and related metadata. The design of the FITS format was influenced by punch cards, thus it is extremely inappropriate for modern hardware. Even though this format is well established in the domain of astrophysics and will be definitely used as a common ground for data exchange, a new representation is required if the data are to be processed efficiently in a high performance manner. In this paper, we propose a specialized column-oriented format for the measured data, which allows much faster loading from the persistent data storage and direct application of the data in computational operations. Furthermore, we have tested various I/O methods implemented in modern operating systems to accommodate a different access patterns that were observed in the most use cases. We have created a prototype implementation of the proposed methods and experimentally evaluated their benefits. Astrophysical databases have used proprietary formats (especially FITS format) to represent measured data and related metadata. The design of the FITS format was influenced by punch cards, thus it is extremely inappropriate for modern hardware. Even though this format is well established in the domain of astrophysics and will be definitely used as a common ground for data exchange, a new representation is required if the data are to be processed efficiently in a high performance manner. In this paper, we propose a specialized column-oriented format for the measured data, which allows much faster loading from the persistent data storage and direct application of the data in computational operations. Furthermore, we have tested various I/O methods implemented in modern operating systems to accommodate a different access patterns that were observed in the most use cases. We have created a prototype implementation of the proposed methods and experimentally evaluated their benefits. (en)
Title	Column-oriented Data Store for Astrophysical Data Column-oriented Data Store for Astrophysical Data (en)
skos:prefLabel	Column-oriented Data Store for Astrophysical Data Column-oriented Data Store for Astrophysical Data (en)
skos:notation	RIV/00216208:11320/14:10271949!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA13-08195S), P(GP14-14292P)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Zavoral, Filip Bednárek, David Yaghob, Jakub Kruliš, Martin
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	7775
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10271949
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	FITS; astronomy; NoSQL database (en)
http://linked.open.../riv/klicoveSlovo	astronomy FITS NoSQL database
http://linked.open...ontrolniKodProRIV	[0288DE13B883]
http://linked.open...v/mistoKonaniAkce	Munich, Germany
http://linked.open...i/riv/mistoVydani	Los Alamitos, CA
http://linked.open...i/riv/nazevZdroje	25th International Workshop on Database and Expert Systems Applications
http://linked.open...in/vavai/riv/obor	IN
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Vysoce škálovatelné paralelní a distribuované metody zpracování vědeckých dat Employing Modern Parallel Architectures in Specific Domains of Database Systems
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Bednárek, David Yaghob, Jakub Zavoral, Filip Kruliš, Martin
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-09-01 (xsd:date)
issn	1529-4188
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1109/DEXA.2014.60
http://purl.org/ne...btex#hasPublisher	IEEE Computer Society
https://schema.org/isbn	978-1-4799-5722-4
http://localhost/t...ganizacniJednotka	11320

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