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Automatic geospatial metadata generation for earth science virtual data products / P. Yue in Geoinformatica, vol 16 n° 1 (January 2012)  

Public [article]  inGeoinformatica > vol 16 n° 1 (January 2012) . - pp 1 - 29 Titre : Automatic geospatial metadata generation for earth science virtual data products Type de document : Article/Communication Auteurs : P. Yue, Auteur ; J. Gong, Auteur ; L. Di, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 1 - 29 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] données localisées numériques [Termes IGN] environnement géographique virtuel [Termes IGN] flux de travaux [Termes IGN] métadonnées [Termes IGN] service web géographique [Termes IGN] web sémantique Résumé : (Auteur) Recent advances in Semantic Web and Web Service technologies has shown promise for automatically deriving geospatial information and knowledge from Earth science data distributed over the Web. In a service-oriented environment, the data, information, and knowledge are often consumed or produced by complex, distributed geoscientific workflows or service chains. In order for the chaining results to be consumable, sufficient metadata for data products to be delivered by service chains must be provided. This paper proposes automatic generation of geospatial metadata for Earth science virtual data products. A virtual data product is represented using process models, and can be materialized on demand by dynamically binding and chaining archived data and services, as opposed to requiring that Earth science data products be physically archived. Semantics-enabled geospatial metadata is generated, validated, and propagated during the materialization of a virtual data product. The generated metadata not only provides a context in which end-users can interpret data products before intensive execution of service chains, but also assures semantic consistency of the service chains. Numéro de notice : A2012-080 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-011-0123-x Date de publication en ligne : 02/02/2011 En ligne : https://doi.org/10.1007/s10707-011-0123-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31528 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
057-2012011	RAB	Revue	Centre de documentation	En réserve L003	Disponible

GeoPW : Laying Blocks for the Geospatial Processing Web / P. Yue in Transactions in GIS, vol 14 n° 6 (December 2010)  

Public [article]  inTransactions in GIS > vol 14 n° 6 (December 2010) . - pp 755 - 772 Titre : GeoPW : Laying Blocks for the Geospatial Processing Web Type de document : Article/Communication Auteurs : P. Yue, Auteur ; L. Di, Auteur ; J. Gong, Auteur ; J. Yuan, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 755 - 772 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] géomatique web [Termes IGN] implémentation (informatique) [Termes IGN] logiciel libre [Termes IGN] partage de données localisées [Termes IGN] traitement de données localisées [Termes IGN] WebSIG Résumé : (Auteur) Recent advances in Web-related technologies have significantly promoted the wide sharing and integrated analysis of distributed geospatial data. Geospatial applications often involve diverse sources of data and complex geoprocessing functions. Existing Web-based GIS focuses more on access to distributed geospatial data. In scientific problem solving, the ability to carry out geospatial analysis is essential to geoscientific discovery. This article presents the design and implementation of GeoPW, a set of services providing geoprocessing functions over the Web. The concept of the Geospatial Processing Web is discussed to address the geoprocessing demands in the emerging information infrastructure, and the role of GeoPW in establishing the Geospatial Processing Web is identified. The services in GeoPW are implemented by developing middleware that wraps legacy GIS analysis components to provide a large number of geoprocessing utilities over the Web. These services are open and accessible to the public, and they support integrated geoprocessing on the Web. Numéro de notice : A2010-515 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2010.01232.x Date de publication en ligne : 07/12/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2010.01232.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30707 [article]

Use of grid computing modeling virtual geospatial products / A. Chen in International journal of geographical information science IJGIS, vol 23 n° 5 (may 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 5 (may 2009) . - pp 581 - 604 Titre : Use of grid computing modeling virtual geospatial products Type de document : Article/Communication Auteurs : A. Chen, Auteur ; L. Di, Auteur ; Y. Wei, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 581 - 604 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] base de données répartie [Termes IGN] données localisées [Termes IGN] environnement géographique virtuel [Termes IGN] géomatique web [Termes IGN] informatique en grille [Termes IGN] modèle logique de données [Termes IGN] modélisation spatiale [Termes IGN] moteur de recherche [Termes IGN] produit informatique [Termes IGN] traitement réparti [Termes IGN] XML Résumé : (Auteur) Earth science research and applications usually use Distributed Geospatial Information Processing (DGIP) services and powerful computing capabilities to extract information and knowledge from large volumes of distributed geospatial data. Conceptually, such processing can be abstracted into a logical model that utilizes geospatial domain knowledge to produce new geospatial products. Using this idea, the geo-tree concept and the proposed geospatial Abstract Information Model (AIM) have been used to develop a Grid workflow engine complying with geospatial standards and the Business Process Execution Language. Upon a user's request, the engine generates virtual geospatial data/information/knowledge products from existing DGIP data and services. This article details how to (1) define and describe the AIM in XML format, (2) describe the process logically with an AIM, including the geospatial semantic logic, (3) conceptually describe the process of producing a particular geospatial product step by step from raw geospatial data, (4) instantiate AIM as a concrete Grid-service workflow by selecting the optimal service instances and data sets, and (5) design a Grid workflow engine to execute the concrete workflows to produce geospatial products. To verify the advantages and applicability of this Grid-enabled virtual geospatial product system, its performance is evaluated, and a sample application is provided. Copyright Taylor & Francis Numéro de notice : A2009-299 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810902733666 En ligne : https://doi.org/10.1080/13658810902733666 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29929 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09032	RAB	Revue	Centre de documentation	En réserve L003	Disponible