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Towards a General Field model and its order in GIS / Y. Liu in International journal of geographical information science IJGIS, vol 22 n° 6-7 (june 2008)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 22 n° 6-7 (june 2008) . - pp 623 - 643 Titre : Towards a General Field model and its order in GIS Type de document : Article/Communication Auteurs : Y. Liu, Auteur ; Q. Guos, Auteur ; Michael F. Goodchild, Auteur ; et al., Auteur Année de publication : 2008 Article en page(s) : pp 623 - 643 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] conception orientée objet [Termes IGN] modèle conceptuel de données localisées [Termes IGN] système d'information géographique Résumé : (Auteur) Geospatial data modelling is dominated by the distinction between continuous-field and discrete-object conceptualizations. However, the boundary between them is not always clear, and the field view is more fundamental in some respects than the object view. By viewing a set of objects as an object field and unifying it with conventional field models, a new concept, the General Field (G-Field) model, is proposed. In this paper, the properties of G-Field models, including domain, range, and categorization, are discussed. As a summary, a descriptive framework for G-Field models is proposed. Then, some common geospatial operations in geographic information systems are reconsidered from the G-Field perspective. The geospatial operations are classified into order-increasing operations and non-order-increasing operations, depending on changes induced in the G-Field's order. Generally, the order can be viewed as an indicator of the level of information extraction of geospatial data. It is thus possible to integrate the concept of order with a geo-workflow management system to support geographic semantics. Copyright Taylor & Francis Numéro de notice : A2008-224 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810701587727 En ligne : https://doi.org/10.1080/13658810701587727 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29219 [article]

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