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Integrating space, time, version, and scale using Alexandrov topologies / Norbert Paul in International journal of 3-D information modeling, vol 4 n° 4 (October - December 2015)  

Public [article]  inInternational journal of 3-D information modeling > vol 4 n° 4 (October - December 2015) . - pp 64 - 85 Titre : Integrating space, time, version, and scale using Alexandrov topologies Type de document : Article/Communication Auteurs : Norbert Paul, Auteur ; Patrick Erik Bradley, Auteur Année de publication : 2015 Article en page(s) : pp 64 - 85 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] données 4D [Termes IGN] données spatiotemporelles [Termes IGN] échelle cartographique [Termes IGN] intégration de données [Termes IGN] modèle relationnel [Termes IGN] niveau de détail [Termes IGN] topologie d'Alexandroff Résumé : (Auteur) This article introduces a novel approach to higher dimensional spatial database design. Instead of extending the canonical Solid–Face–Edge–Vertex schema of topological data, these classes are replaced altogether by a common type SpatialEntity, and the individual “bounded-by” relations between two consecutive classes are replaced by one separate binary relation BoundedBy on SpatialEntity which defines a so-called Alexandrov topology on SpatialEntity and thus exposes mathematical principles of spatial data design. This has important consequences: First, a mathematical definition of topological “dimension” for spatial data can be given. Second, every topology for data of arbitrary dimension has such a simple representation. Also, version histories have a canonical Alexandrov topology, and generalizations can be consistently modeled by continuous foreign keys between LoDs. The result is a relational database schema for spatial data of dimension 6 and more which seamlessly integrates 4D space-time, levels of details and version history. Topological constructions enable queries across these different aspects. Numéro de notice : A2016-431 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.4018/ij3dim.2015100104 En ligne : http://doi.org/10.4018/ij3dim.2015100104 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81325 [article]

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