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Advances in Spatial Data Handling : 10th International Symposium on Spatial Data Handling / Dianne Richardson (2002)  

Public Titre : Advances in Spatial Data Handling : 10th International Symposium on Spatial Data Handling Type de document : Actes de congrès Auteurs : Dianne Richardson, Éditeur scientifique ; Peter J. M. Van Oosterom, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2002 Conférence : SDH 2002, 10th international symposium on Spatial Data Handling 09/07/2002 12/07/2002 Ottawa Canada Proceedings Springer Importance : 562 p. Format : 16 x 24 cm Accompagnement : sans cédérom ISBN/ISSN/EAN : 978-3-540-43802-1 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] base de données localisées [Termes IGN] exploration de données géographiques [Termes IGN] fusion de données [Termes IGN] généralisation cartographique automatisée [Termes IGN] incertitude des données [Termes IGN] intégration de données [Termes IGN] interopérabilité [Termes IGN] modèle conceptuel de données spatio-temporelles [Termes IGN] modèle numérique de surface [Termes IGN] modèle numérique de terrain [Termes IGN] précision des données [Termes IGN] raisonnement spatial [Termes IGN] web mapping Résumé : (éditeur) This book, entitled Advances in Spatial Data Handling, is a compendium of papers resulting from the International Symposium on Spatial Data Handling (SDH), held in Ottawa, Canada, July 9-12, 2002. The SDH conference series has been organised as one of the main activities of the International Geographical Union (IGU) since it was first started in Zurich in 1984. In the late 1990’s the IGU Commission of Geographic Information Systems was discontinued and a study group was formed to succeed it in 1997. Much like the IGU Commission, the objectives of the Study Group are to create a network of people and research centres addressing geographical information science and to facilitate exchange of information. The International Symposium on Spatial Data Handling, which is the most important activity of the IGU Study Group, has, throughout its 18 year history been highly regarded as one of the most important GIS conferences in the world. Numéro de notice : 17086 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes DOI : 10.1007/978-3-642-56094-1 En ligne : http://dx.doi.org/10.1007/978-3-642-56094-1 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79461

Contient

• Detecting building alignments for generalisation purposes / Sidonie Christophe (2002)  
• A methodology for updating geographic databases using map versions / Ally Peerbocus (2002)  
• Map samples to help GI users specify their needs / Frédéric Hubert (2002)  
• A new merging process for data integration based on the Discrete Fréchet Distance / Thomas Devogele (2002)  

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
17086-01	CG2002	Livre	Centre de documentation	Congrès	Disponible

Detecting building alignments for generalisation purposes / Sidonie Christophe (2002)  

Public contenu dans Advances in Spatial Data Handling : 10th International Symposium on Spatial Data Handling / Dianne Richardson (2002)   Titre : Detecting building alignments for generalisation purposes Type de document : Article/Communication Auteurs : Sidonie Christophe , Auteur ; Anne Ruas , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2002 Conférence : SDH 2002, 10th international symposium on Spatial Data Handling 09/07/2002 12/07/2002 Ottawa Canada Proceedings Springer Importance : pp 419 - 432 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] alignement [Termes IGN] analyse spatiale [Termes IGN] bati [Termes IGN] généralisation cartographique automatisée [Termes IGN] Lamps2 [Termes IGN] reconnaissance de formes [Vedettes matières IGN] Généralisation Résumé : (Auteur) Generalisation is well recognised as a complex process that should trigger specific algorithms, on different types of objects in some logical or appropriate order. To guide the process (where and how to generalise) one solution is to distinguish characterisation from the generalisation process. Characterisation aims at finding and describing relevant 'working areas' that can be a part of an object or a set of objects. As a result, the choice of an appropriate algorithm(s) becomes easier and can be constrained by the detected properties of this new entity. This paper presents a method to both detect and characterise building alignments in an effort to improve the use of generalisation algorithms namely typification and displacement. The first step consists of the identification of building alignments from straight-line templates. The second step characterises these alignments to retain only those that are perceptually regular. The characterisation is based on an analysis of the spatial location of buildings as well as on the properties of the buildings that belong to the alignment in question. To evaluate the regularity of the distribution, estimators are proposed for each property. At the end a global quality estimator of the perceptual alignment- based on the aggregation of the estimators - is proposed. This global estimator is used to retain the best building alignments that will then be carefully generalised. The results presented have been implemented in the Lamps2 GIS software. Numéro de notice : C2002-005 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-56094-1_31 En ligne : https://doi.org/10.1007/978-3-642-56094-1_31 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64963

Map samples to help GI users specify their needs / Frédéric Hubert (2002)  

Public contenu dans Advances in Spatial Data Handling : 10th International Symposium on Spatial Data Handling / Dianne Richardson (2002)   Titre : Map samples to help GI users specify their needs Type de document : Article/Communication Auteurs : Frédéric Hubert, Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2002 Conférence : SDH 2002, 10th international symposium on Spatial Data Handling 09/07/2002 12/07/2002 Ottawa Canada Proceedings Springer Importance : pp 533 - 545 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] accès aux données localisées [Termes IGN] données localisées [Termes IGN] échantillon [Termes IGN] interface web [Termes IGN] langage naturel (informatique) [Termes IGN] requête spatiale Résumé : (Auteur) Accessing the user interfaces proposed by GISs, G-DBMS or geographic Web sites shows how complex they may prove for novice users of geographic information. Such users have needs in geographic information, but they do not have the means to express them and thus to adequately fulfil them. The objective of this paper is to outline an approach that may help users specify their needs with geographic information. This approach consists in converging on one available solution, the closest possible to the user needs, by using new means of communication between user and computer: map samples and natural language. Map samples are geographical data, extracted from the database and possibly processed by available GIS treatments. A few map samples are proposed to the user, who makes the relevant choices. The system tries to "understand" the interactions to help in the choosing. A search engine navigates through the available map samples in order to identify the most appropriate map samples and proposes them to help the user identify the need more precisely. Natural language allows the expression of user needs to be captured in a manner more consistent with a dialogue and provides more freedom or versatility for example, for general queries and quantitative evaluation. A virtual scenario shows the combination between these two languages. Numéro de notice : C2002-007 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-56094-1_39 En ligne : https://doi.org/10.1007/978-3-642-56094-1_39 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64965

A methodology for updating geographic databases using map versions / Ally Peerbocus (2002)  

Public contenu dans Advances in Spatial Data Handling : 10th International Symposium on Spatial Data Handling / Dianne Richardson (2002)   Titre : A methodology for updating geographic databases using map versions Type de document : Article/Communication Auteurs : Ally Peerbocus, Auteur ; Geneviève Jomier, Auteur ; Thierry Badard , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2002 Conférence : SDH 2002, 10th international symposium on Spatial Data Handling 09/07/2002 12/07/2002 Ottawa Canada Proceedings Springer Importance : pp 363 - 376 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] base de données localisées [Termes IGN] cohérence des données [Termes IGN] conflit d'intégration [Termes IGN] intégration de données [Termes IGN] mise à jour de base de données [Termes IGN] système d'information géographique Résumé : (Auteur) This paper addresses issues concerning the exchange and integration of geographic data between producers and users. Once a producer has delivered a geographic database to a user, who then uses it as a reference for specific applications, the database may be updated on both sides. Consequently, the integration of future updates - delivered by the producer -in the user's geographic database is a complex operation due to possible conflicts between updates performed by both parties. The resulting database may become inconsistent and the user's added information may be lost. Users therefore need mechanisms to help them in the process of update integration. This paper provides a methodological framework for the updating of geographic databases. It relies on a multi-version GIS, allowing an automatic detection of conflicting updates between two map versions. Numéro de notice : C2002-009 Affiliation des auteurs : COGIT+Ext (1988-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-56094-1_27 En ligne : https://doi.org/10.1007/978-3-642-56094-1_27 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64967

A new merging process for data integration based on the Discrete Fréchet Distance / Thomas Devogele (2002)  

Public contenu dans Advances in Spatial Data Handling : 10th International Symposium on Spatial Data Handling / Dianne Richardson (2002)   Titre : A new merging process for data integration based on the Discrete Fréchet Distance Type de document : Article/Communication Auteurs : Thomas Devogele , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2002 Conférence : SDH 2002, 10th international symposium on Spatial Data Handling 09/07/2002 12/07/2002 Ottawa Canada Proceedings Springer Importance : pp 167 - 182 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] appariement de données localisées [Termes IGN] distance de Fréchet [Termes IGN] fusion de données [Termes IGN] intégration de données Résumé : (auteur) The overlay process is currently one of the main computational solutions used to integrate several data layers from different sources. Unfortunately, it is problematic when trying to overlay many layers. This leads to several geometric problems such as the management of sliver polygons. This paper proposes a new merging process to complement the vector overlay for data integration of several layers. This process, based on measures derived from the Fréchet distance, matches common points (either lines or polygons). It also merges an ordered set of pairs of matching points (vertices) into a single geometry. Numéro de notice : C2002-023 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-56094-1_13 En ligne : https://doi.org/10.1007/978-3-642-56094-1_13 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79515