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Titre : Semantic aspects of interoperable GIS Type de document : Thèse/HDR Auteurs : Yaser Bishr, Auteur Editeur : Wageningen : Wageningen Agricultural University Année de publication : 1997 Autre Editeur : Enschede : International Institute for Aerospace Survey and Earth Sciences ITC Importance : 154 p. Format : 15 x 24 cm ISBN/ISSN/EAN : 978-90-6164-141-4 Note générale : bibliographie
thesis to fullfil the requirements for the degree of doctor on the authority of the rector magnificusLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] découverte de connaissances
[Termes IGN] données hétérogènes
[Termes IGN] information sémantique
[Termes IGN] interopérabilité
[Termes IGN] partage de données localisées
[Termes IGN] système d'information géographiqueRésumé : (auteur) An increasing number of geospatial applications require information which is scattered in several independent geographic information systems. One of the main objectives of geographic information infrastructure, GII, is to provide a political, institutional, economic, and technical platform to share information. The focus of this thesis is on the technical aspects of the GII. The thesis aims at providing a mechanism to share information seamlessly among distributed, heterogeneous, geospatial information systems. Sharing information may improve decision making and reduce the cost of data collection. In general, retrieving information from distributed databases involves two steps. In the first step users search for relevant information resources in a network of information providers. In the second step users request data from the information resource. With regard to the first step, a model to search for the relevant information resources is presented. The model is called the resource discovery model, RDM. It provides a reference model to structure the metadata of the information resources in a tree of interrelated resources. In the second step, interoperability allows communication among heterogeneous, distributed, information systems. Interoperability is the ability of two or more systems to exchange geospatial information and to make mutual use of the information that has been exchanged. The research identifies two perspectives to interoperability; these are the data modeling perspective and the system architecture perspective. In relation to data modeling, three types of heterogeneity arise: syntactic, schematic, and semantic. The semantic heterogeneity occurs due to differences in the definition of classes, the definition of class intension and the geometric description. This set of definitions is called context information. The semantic heterogeneity is the main factor for the schematic and the syntactic heterogeneity. The schematic heterogeneity pertains to the differences in the class hierarchies and the attribute structure of database schemas. The syntactic heterogeneity occurs due to the differences in the constructs used to model relationships among classes and attributes, object geometry, and topologic relationships. To provide interoperability among different GIS applications, it is necessary to resolve the semantic, schematic, and syntactic heterogeneity. In this thesis, a model for information sharing is presented. The model is called the semantic formal data structure, SFDS. It consists of three layers, in which each layer is intended to resolve a specific type of heterogeneity. The model provides a method for loading semantics that is the context information, into database schemas. The first layer of SFDS is the syntactic layer, in which the formal data structure, FDS, is adopted. The second layer of SFDS is the schematic layer, in which the concept of federated databases is adopted. A reference model for the federated schemas is presented. The implementation of SFDS and RDM is related to the system architecture perspective for interoperability, and is discussed in this thesis. A comparison of the implementation of RDM, which is a clearinghouse, with other implementations has proven that a consistent abstract model is required to maintain and ensure the consistency of the contents of the clearinghouse as well as to improve the results of the search for information resources. The three-layers approach adopted in SFDS has proven adequate to resolve the three types of heterogeneity. The implementation of SFDS, known as the semantic translator, has shown that it should be dedicated to a single application domain, to simplify its practical implementation and maintenance. In this case databases can have several semantic translators installed, each being specific to an application domain. For example, one database may have a semantic translator to exchange road network information, another to exchange soil information, etc. Note de contenu : 1. Framework and Objectives
2. Environmental decision making - a GeoInformation perspective
3. Interoperability of GIS
4. Abstraction and heterogeneity among contexts
5. The reference model of SFDS
6. The role of semantics in mapping between database schemas
7. The resource discovery model
8. Implementation of SemWeb
9. Conclusions and recommendationsNuméro de notice : 19825 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Thèse étrangère Note de thèse : PhD : Geomatics : Wageningue : 1997 Organisme de stage : International Institute for Aerospace Survey and Earth Sciences (ITC) En ligne : https://edepot.wur.nl/211778 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85898 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 19825-01 K325 Livre LASTIG Dépôt en unité Exclu du prêt The second "Geodata for all in Europe" EUROGI workshop 1996: European standardisation strategies for GI and interoperability issues, Tome 1. Report / Eurogi (1997)
Titre de série : The second "Geodata for all in Europe" EUROGI workshop 1996: European standardisation strategies for GI and interoperability issues, Tome 1 Titre : Report Type de document : Actes de congrès Auteurs : Eurogi, Auteur Editeur : Amersfoort : European umbrella Organization for Geographic Information EUROGI Année de publication : 1997 Conférence : EUROGI 1996, 2nd Geodata for all in Europe workshop, European standardisation strategies for GI and interoperability issues 10/10/1996 11/10/1996 Amersfoort Pays-Bas Importance : 15 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] interopérabilité
[Termes IGN] standardisation
[Termes IGN] système d'information géographiqueNuméro de notice : 69528A Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=37308 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 69528-01A CG.97 Livre Centre de documentation Congrès Disponible The second "Geodata for all in Europe" EUROGI workshop 1996: European standardisation strategies for GI and interoperability issues, Tome 2. Proceedings / Eurogi (1997)
Titre de série : The second "Geodata for all in Europe" EUROGI workshop 1996: European standardisation strategies for GI and interoperability issues, Tome 2 Titre : Proceedings Type de document : Actes de congrès Auteurs : Eurogi, Auteur Editeur : Amersfoort : European umbrella Organization for Geographic Information EUROGI Année de publication : 1997 Conférence : EUROGI 1996, 2nd Geodata for all in Europe workshop, European standardisation strategies for GI and interoperability issues 10/10/1996 11/10/1996 Amersfoort Pays-Bas Importance : 150 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] interopérabilité
[Termes IGN] standardisation
[Termes IGN] système d'information géographiqueNuméro de notice : 69528B Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=37309 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 69528-01B CG.97 Livre Centre de documentation Congrès Disponible 18th international congress ISPRS, Volume 2. Technical Commission 2 Systems for data processing, analysis and representation / Karl Kraus (1996)Voir aussi
- 18th international congress ISPRS, Volume 1. Commission 1 Sensors, platforms and imagery / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 3. Commission 3 Theory and algorithms / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 4. Technical Commission 4 Mapping and Geographic Information Systems / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 5. Commission 5 Close-range techniques and Machine Vision / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 6. Commission 6 Economics, professional matters and education / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 7. Commission 7 Ressource and Environmental Monitoring / Karl Kraus (1996)
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Code-barres Cote Support Localisation Section Disponibilité 68862-01B CG.96 Livre Centre de documentation Congrès Disponible 18th international congress ISPRS, Volume 4. Technical Commission 4 Mapping and Geographic Information Systems / Karl Kraus (1996)
Titre de série : 18th international congress ISPRS, Volume 4 Titre : Technical Commission 4 Mapping and Geographic Information Systems Type de document : Actes de congrès Auteurs : Karl Kraus, Éditeur scientifique ; Peter Waldhäusl, Éditeur scientifique ; International society for photogrammetry and remote sensing (1980 -), Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 1996 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 31-B4 Conférence : ISPRS 1996, 18th Congress 13/07/1996 17/07/1996 Vienne Autriche ISPRS OA Archives Importance : 1030 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aérotriangulation
[Termes IGN] cartographie
[Termes IGN] généralisation cartographique
[Termes IGN] image à haute résolution
[Termes IGN] image multicapteur
[Termes IGN] interopérabilité
[Termes IGN] modèle numérique de terrain
[Termes IGN] numérisation
[Termes IGN] occupation du sol
[Termes IGN] orthoimage
[Termes IGN] photogrammétrie
[Termes IGN] photogrammétrie terrestre
[Termes IGN] positionnement par GPS
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] stéréoscopie
[Termes IGN] système d'information géographique
[Termes IGN] télédétectionNuméro de notice : 68862D Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans En ligne : https://www.isprs.org/proceedings/XXXI/congress/part4/default.aspx Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=37233 Voir aussi
- 18th international congress ISPRS, Volume 2. Technical Commission 2 Systems for data processing, analysis and representation / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 3. Commission 3 Theory and algorithms / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 1. Commission 1 Sensors, platforms and imagery / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 5. Commission 5 Close-range techniques and Machine Vision / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 6. Commission 6 Economics, professional matters and education / Karl Kraus (1996)
- 18th international congress ISPRS, Volume 7. Commission 7 Ressource and Environmental Monitoring / Karl Kraus (1996)
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Code-barres Cote Support Localisation Section Disponibilité 68862-01D CG.96 Livre Centre de documentation Congrès Disponible 18th international congress ISPRS, Volume 6. Commission 6 Economics, professional matters and education / Karl Kraus (1996)PermalinkCAD and office integration, OLE for design and modeling, a new technology for CA software / U. Sendler (1996)PermalinkInternet / Alain Bensoussan (1996)PermalinkIntranet, le réseau d'entreprise / V. Sandoval (1996)PermalinkLes nouvelles technologies dans les bibliothèques / M. Rouhet (1996)PermalinkLe point sur la norme Edigeo et son utilisation / B. Cholvy in XYZ, n° 63 (mars - mai 1995)PermalinkCOSIT'95 / Werner Kuhn (1995)PermalinkEtude de solutions permettant l'exploitation de données / Jean-Philippe Llorens (1994)PermalinkInformatique à la BD Carto, 3. Réseau / Jean-Christophe Rouillé (1993)PermalinkUn nouveau media de communication interne [rebus] à l'Institut / N. Faraud (1993)PermalinkInformation, informatique et Systèmes d'Information Géographique [tiré à part de encyclopédie de géographie] / Y. Guermond (1992)PermalinkThe role of standards in geographic information systems / F. Fabbrini (1992)PermalinkLes réseaux, version provisoire, mai 1990 / Jacques Poulain (1990)PermalinkLes systèmes experts et leurs applications, Neuvièmes journées internationales, Avignon, 29 mai - 2 juin 1989, Volume 5. Conférence spécialisée Intelligence artificielle télécomunications et informatique / Roger Attard (1990)PermalinkLes réseaux locaux industriels / F. Lepage (1989)PermalinkSecurity for computer networks / D.W. Davies (1989)PermalinkIntroduction de la téléinformatique / J.M. Munier (1985)PermalinkProjet MEDOC 2 / Alfred Piuzzi (1985)PermalinkRéseaux et télématique, 1. Tome 1 / Guy Pujolle (1985)PermalinkRéseaux et télématique, 2. Tome 2 / Guy Pujolle (1985)PermalinkTemps de réponse des réseaux informatiques / R. Eichaker (1984)Permalink