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Auteur Jizhe Xia |
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Forming a global monitoring mechanism and a spatiotemporal performance model for geospatial services / Jizhe Xia in International journal of geographical information science IJGIS, vol 29 n° 3 (March 2015)
[article]
Titre : Forming a global monitoring mechanism and a spatiotemporal performance model for geospatial services Type de document : Article/Communication Auteurs : Jizhe Xia, Auteur ; Chaowei Yang, Auteur ; K. Liu, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 375 - 396 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] architecture orientée services
[Termes IGN] données massives
[Termes IGN] évaluation
[Termes IGN] informatique en nuage
[Termes IGN] infrastructure mondiale des données localisées
[Termes IGN] modèle conceptuel de données spatio-temporelles
[Termes IGN] service web géographique
[Termes IGN] test de performanceRésumé : (Auteur) Geographic information service (GIService) has become popular in the last decade to develop applications for addressing global challenges. Performance is one of the most important criteria to help users select distributed online GIService for developing geospatial applications including natural hazards and emergency responses. However, performance accuracy is limited by the single-location-based evaluation mechanism while service performance is dynamic in space and time between end-users and services. We propose a spatiotemporal performance evaluation mechanism to improve the accuracy. Specially, a cloud and volunteer computing mechanism is proposed to collect performance information of globally distributed GIServices. A global spatiotemporal performance model is designed to integrate spatiotemporal dynamics for better performance evaluation for users from different regions at different times. This model is tested to support GIService selection in global spatial data infrastructures (SDIs). The experiment confirms that the proposed model provides more accurate evaluations for global users and better supports geospatial resource utilizations in SDIs than previous mechanisms. The methodology can be adopted to improve the services of other regional and global distributed operational systems. Numéro de notice : A2015-583 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2014.968783 En ligne : http://www.tandfonline.com/doi/full/10.1080/13658816.2014.968783 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=77869
in International journal of geographical information science IJGIS > vol 29 n° 3 (March 2015) . - pp 375 - 396[article]