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Ontology-based descriptions for semantic discovery and composition of geoprocessing services / M. Lutz in Geoinformatica, vol 11 n° 1 (March - May 2007)  

Public [article]  inGeoinformatica > vol 11 n° 1 (March - May 2007) . - pp 1 - 36 Titre : Ontology-based descriptions for semantic discovery and composition of geoprocessing services Type de document : Article/Communication Auteurs : M. Lutz, Auteur Année de publication : 2007 Article en page(s) : pp 1 - 36 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] implémentation (informatique) [Termes IGN] infrastructure nationale des données localisées [Termes IGN] ontologie [Termes IGN] OWL [Termes IGN] prototype [Termes IGN] service web géographique [Termes IGN] service web sémantique Résumé : (Auteur) The ability to process geospatial data will be a great benefit for spatial data infrastructures. This requires the ability to compose data providing services with geoprocessing services. Discovering suitable geoprocessing services is a major challenge in this endeavour. Current (keyword-based) approaches to service discovery are inherently restricted by the ambiguities of natural language, which can lead to low precision and/or recall. To alleviate these problems, we propose to use an ontology-based approach to GI service discovery, which rests on two ideas. Ontologies describing geospatial operations are used to create descriptions of requirements and service capabilities; matches between these descriptions are identified based on function subtyping. We use a running example from the geospatial domain to analyse which problems can occur in existing keyword- and ontology-based approaches and how the discovery of geoprocessing services differs from other service discovery tasks. The example is also used for illustrating the prototypical implementation of the proposed approach. Numéro de notice : A2007-164 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-006-7635-9 En ligne : https://doi.org/10.1007/s10707-006-7635-9 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28527 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
057-07011	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Ontology-based retrieval of geographic information / M. Lutz in International journal of geographical information science IJGIS, vol 20 n° 3 (march 2006)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 20 n° 3 (march 2006) . - pp 233 - 260 Titre : Ontology-based retrieval of geographic information Type de document : Article/Communication Auteurs : M. Lutz, Auteur ; E. Klien, Auteur Année de publication : 2006 Article en page(s) : pp 233 - 260 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] accès aux données localisées [Termes IGN] catalogue de données localisées [Termes IGN] données localisées [Termes IGN] hétérogénéité sémantique [Termes IGN] interface graphique [Termes IGN] langage de requête [Termes IGN] langage naturel (informatique) [Termes IGN] ontologie [Termes IGN] recherche d'information géographique Résumé : (Auteur) Discovering and accessing suitable geographic information (GI) in the open and distributed environments of current Spatial Data Infrastructures (SDIs) is a crucial task. Catalogues provide searchable repositories of information descriptions, but the mechanisms to support GI retrieval are still insufficient. Problems of semantic heterogeneity caused by the ambiguity of natural language can arise during keyword-based search in catalogues and when formulating a query to access the discovered data. In this paper, we present an approach to ontology based GI retrieval that contributes to solving existing problems of semantic heterogeneity and hides most of the complexity of the required procedure from the requester. A query language and graphical user interface allow a requester to intuitively formulate a query using a well-known domain vocabulary. From this query, an ontology concept is derived, which is then used to search a catalogue for a data source that provides all the information required to answer the requester's query. If a suitable data source is discovered, the relevant data are accessed through a standardized interface. The approach is implemented through several components that can be used as an extension to standard SDIs. Numéro de notice : A2006-091 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810500287107 En ligne : https://doi.org/10.1080/13658810500287107 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27818 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-06031	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-06032	RAB	Revue	Centre de documentation	En réserve L003	Disponible