Centre de documentation
scientifique

L'IGN remet son "cahier d'acteurs" / Anonyme in Géomatique expert, n° 101 (novembre - décembre 2014)

Public [article]  inGéomatique expert > n° 101 (novembre - décembre 2014) . - pp 7 - 8 Titre : L'IGN remet son "cahier d'acteurs" Type de document : Article/Communication Auteurs : Anonyme, Auteur Année de publication : 2014 Article en page(s) : pp 7 - 8 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] Institut national de l'information géographique et forestière (France) [Termes IGN] service de géoinformation Résumé : (documentaire) Présentation du cahier d'acteurs IGN autour du thème de la conception d'un "nouveau geo-service public numérique". Numéro de notice : A2014-551 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article nature-HAL : ArtSansCL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74163 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
265-2014061	RAB	Revue	Centre de documentation	En réserve L003	Disponible
IFN-001-P001638	GEO	Revue	Nogent-sur-Vernisson	Salle périodiques	Disponible

GS-soil portal: making soil data accessible / K. Feiden in GEO: Geoconnexion international, vol 10 n° 5 (may 2011)

Public [article]  inGEO: Geoconnexion international > vol 10 n° 5 (may 2011) . - pp 26 - 27 Titre : GS-soil portal: making soil data accessible Type de document : Article/Communication Auteurs : K. Feiden, Auteur Année de publication : 2011 Article en page(s) : pp 26 - 27 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] infrastructure nationale des données localisées [Termes IGN] occupation du sol [Termes IGN] service de géoinformation Résumé : (Auteur) GS Soil is the best practice network for the assessment and strategic development of Inspire compliant geodata-services for European soil data. Numéro de notice : A2011-174 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30952 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
062-2011051	SL	Revue	Centre de documentation	Revues en salle	Disponible

Web-based information service Canada: all information and data available in standardized formats / R. Baynes in Geoinformatics, vol 9 n° 5 (01/07/2006)

Public [article]  inGeoinformatics > vol 9 n° 5 (01/07/2006) . - pp 48 - 49 Titre : Web-based information service Canada: all information and data available in standardized formats Type de document : Article/Communication Auteurs : R. Baynes, Auteur Année de publication : 2006 Article en page(s) : pp 48 - 49 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] agriculture [Termes IGN] Canada [Termes IGN] collectivité territoriale [Termes IGN] diffusion par internet [Termes IGN] gestion de l'eau [Termes IGN] infrastructure nationale des données localisées [Termes IGN] norme d'échange de données localisées [Termes IGN] outil d'aide à la décision [Termes IGN] serveur de données localisées [Termes IGN] service de géoinformation [Termes IGN] système d'information géographique Résumé : (Auteur) Together with provincial and territorial government and other partners the federal government’s Agriculture and Agri-food department has announced the development of an Internet-based National Land and Water Information Service. With federal government funding of CDN$100.1 million, the service will provide geospatial information and tools to assist in agri-environmental decision-making across the country. Copyright Geoinformatics Numéro de notice : A2006-317 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28041 [article]

Semantic interoperability of distributed geo-services / Robert Lemmens (2006)  

Public Titre : Semantic interoperability of distributed geo-services Type de document : Thèse/HDR Auteurs : Robert Lemmens, Auteur Editeur : Delft : Netherlands Geodetic Commission NGC Année de publication : 2006 Collection : Netherlands Geodetic Commission Publications on Geodesy, ISSN 0165-1706 num. 63 Importance : 291 p. Format : 17 x 24 cm ISBN/ISSN/EAN : 978-90-6132-298-6 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] architecture client-serveur [Termes IGN] base de connaissances [Termes IGN] diffusion de données [Termes IGN] hétérogénéité sémantique [Termes IGN] infrastructure mondiale des données localisées [Termes IGN] intégration de données [Termes IGN] interopérabilité sémantique [Termes IGN] logiciel libre [Termes IGN] modèle sémantique de données [Termes IGN] ontologie [Termes IGN] OWL [Termes IGN] prototype [Termes IGN] réseau sémantique [Termes IGN] service de géoinformation [Termes IGN] service fondé sur la position [Termes IGN] service web géographique [Termes IGN] système d'information géographique Résumé : (Auteur) The last two decades have shown a major shift from stand-alone software systems to networked ones. As with all information system domains, Geographic Information Systems (GISs) have been influenced to a large extent by recent internet developments, resulting in an increasing availability of client/server applications using distributed geo-(web-)services, such as interactive maps, route planners and gazetteers. There is an increasing need for organisations to perform on demand geo-processing tasks by integrating and reusing geo-information and geo-services from within and outside the organisation. These activities are typically performed in the context of so called Geo-Information Infrastructures (GIls). The process of integrating services is commonly referred to as service chaining. This requires that services can be easily found, and that they are executable and interoperable. Interoperability means that the services 'understand' each other's messages. A major impediment is formed by the semantic heterogeneity (the differences in meaning) of geo-information and of the functionality of geo-services. Making services semantically interoperable is an important prerequisite for information sharing in today's networked society. This involves services that rely on different knowledge domains, one of which is the geo-information domain. Within this context, the research presented in this thesis provides solutions for the computer-aided integration of distributed heterogeneous geo-information and geo-services, based on their semantics (the meaning of their content). Geo-information distinguishes from other information by its spatial relevance. Geo-services often have to deal integrally with multiple-representations of features in a spatial, temporal and thematic dimension. Geo-services are also implicitly connected by the geographic location of the features they process. This has implications for the interoperability of geo-services. For example, the validity of a service (e.g., a routeplanner) may be bound to a specific geographic area, which could imply it cannot be used in combination with services involving another validity area. On the contrary, services that seem to be incompatible due to differences in feature representation (e.g., geometry, coordinate reference system), may turn out to be useful in combination, because they contain information on the same locations. On demand geo-processing requires services and the meta-information that describes the services to be available at the time a task is being executed. Moreover, the service descriptions should be based on commonly agreed rules for service characterisation. Inter-service contracts that contain such rules may result in service interoperability and this can be achieved at three levels: syntax, structure and semantics. The influential specifications of the Open Geospatial Consortium (OGC) and the ISO 19100 series of standards, implement formal contracts on the syntactical and structural level, but they prescribe only informal contracting at the semantic level. Despite their rigid conceptualisation, they lack a machine-accessible formalisation that supports the specification of semantics for geo-information and geo-services. This research has developed such a formalisation, which is specified in a so called semantic interoperability framework. In this framework a key role is played by machine ontologies, which are machine-accessible representations of knowledge that are used for inferring intra- and inter-resource relationships. Recent research efforts in the field of the Semantic Web have contributed considerably to the deployment of ontology-based applications by providing a theoretical foundation (Description Logics), ontology languages (e.g., the Web Ontology Language (OWL)), and tools for ontology creation, access and reasoning with web-based (machine) ontologies. The power of web-based ontologies lies in their interoperable (XML based) representation, the use of unique namespaces and the fact that they allow for automated reasoning. The semantic interoperability framework developed in this research, contains (1) geo-information modelling ontologies which are based on the ISO General Feature Model, (2) domain specific ontologies (amongst others, one which is based on a data model used by the Dutch Topographic Service), and (3) a geo-operation modelling ontology. The latter is based on a geo-operation taxonomy, an input/output parameter characterisation and a workflow model. The taxonomy and parameter characterisation have been developed as part of this research, the workflow model is based on OWL-S, an OWL-based upper ontology for web services. Ontology-based service descriptions have been created in the context of four use cases in the following areas: (1) information model integration for risk mapping, (2) ad hoc data integration in a disaster emergency situation, (3) reuse of geo-data and geo-services in scientific research, and (4) ad hoc integration of travel services. The ontology-based descriptions are used as representations of service requests and advertisements in a matchmaking process. The matchmaking is performed by an ontology reasoner which can infer implicit relationships that exist in a knowledge base containing service descriptions as sets of concepts. The reasoner is implemented together with the ontologies in a prototype environment. Except for the reasoner, this has been carried out with open source software. Within this environment, basic matchmaking has been successfully performed to support data set integration and service chaining. This has been demonstrated by tests implementing the aforementioned use cases. The offered solution is flexible and extensible. With respect to flexibility, the research demonstrates the use of incomplete service descriptions. With respect to extensibility, the research shows how service descriptions can be extended with new concepts. It is also demonstrated how existing application domains can be linked through ontology mappings. In the process of service chaining, four steps have been identified, i.e., discovery, abstract composition, concrete composition and execution. The link between the abstract and concrete composition of services is realised by annotation, which connects ontology elements with parameters of executable code. For one of the use cases, this code has been deployed in a prototype software application (the latter being part of an external research effort). There are also limitations to the approach followed, which are partly due to the limitations of OWL and reasoning with it, i.e., with respect to spatial reasoning and the use of metaclasses. In addition, the current prototype environment has several shortcomings: (1) constraints of the user-interfaces (entering service descriptions in Description Logics is still rather complex), (2) the inflexibility of the reasoning implementation and (3) the incompleteness of mappings between domain ontologies, all of which are thought to be surmountable. A number of recommendations are made for the improvement of the current design and implementation of the interoperability framework, such as the incorporation of: meta-information propagation, concept similarity quantifiers and result ranking in the matchmaking process. The deployment of the approach requires key organisations such as OGC to develop and maintain domain independent parts of a semantic interoperability framework and organisations with a GIl mandate to manage its domain dependent parts. Application fields that are thought to benefit from the presented approach in the short term are, amongst others: service discovery and chaining in GII, harmonisation of geo-information models, multiple-representation of geo-information, profile matching of geo-service users, documentation of geo-processing history (lineage), and quality assessment of meta-information. The target groups of this research are firstly geo-information engineers who are confronted with information integration issues and service interoperability issues, and secondly, information engineers in general confronted with distributed information and with end users that need to access distributed services as one virtual application. Note de contenu : 1 Why interoperability is important 1.1 Research context and motivation 1.2 Research objectives 1.3 Research approach 1.4 Related work 1.5 Thesis outline 2 Interoperable distributed services 2.1 Distributed processing paradigms 2.2 Interoperability and heterogeneity 2.3 Overcoming heterogeneity by contract 2.4 Interoperability models 2.5 Geo-services 2.6 Geo-service use cases 2.7 Summary and reflection 3 Service models for discovery, composition and execution 3.1 Information modelling 3.2 Process modelling 3.3 Service chaining 3.4 Summary and reflection 4 Semantic modelling 4.1 What is an ontology? 4.2 Foundations for machine ontology 4.3 Ontology design and creation 4.4 Ontology representations and notation 4.5 Reasoning with a knowledge base 4.6 Semantic interoperability frameworks 4.7 Semantic web services 4.8 Geo-semantic modelling and spatial relevance 4.9 Summary and reflection 5 Semantic interoperability framework for geo-services 5.1 Semantic framework overview 5.2 Feature symbol ontology 5.3 Feature concept ontologies 5.4 Geo-operation characterisations ? OPERA 5.5 OPERA-R ? Feature processing operations 5.6 Geo-service descriptions 5.7 Summary and reflection 6 Geo-information matching and service chaining 6.1 Example: Riskmap chain 6.2 Semantic modelling of geo-service chains 6.3 Derived operations and ontology mappings 6.4 Matchmaking 6.5 Summary and reflection 7 Use case implementations 7.1 Riskmap NL 7.2 Emergency 112 7.3 Research Net 7.4 Travel Google 7.5 Summary and reflection 8 Implementation of prototypes: OnToGeo and GeoMatchMaker 8.1 Practical design and implementation issues of OnToGeo 8.2 Workbench tools 8.3 GeoMatchMaker, an integrated prototype 8.4 Creating service descriptions 8.5 Summary and reflection 9 Conclusions and recommendations 9.1 Summary and reflection 9.2 Conclusions 9.3 Main contributions 9.4 Deployment 9.5 Recommendations for further work Numéro de notice : 15204 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Thèse étrangère En ligne : https://www.ncgeo.nl/downloads/63Lemmens.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=55094

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
15204-01	37.00	Livre	Centre de documentation	Géomatique	Disponible
15204-02	37.00	Livre	Centre de documentation	Géomatique	Disponible

Integration of human services into technical GI service chains / C. Brox (2004)  

Public contenu dans Agile 2004, 7th Agile Conference on Geographic Information Science, Heraklion (Greece), 29 April - 1 May 2004 / Fred Toppen (2004)   Titre : Integration of human services into technical GI service chains Type de document : Article/Communication Auteurs : C. Brox, Auteur ; Krzysztof Janowicz, Auteur Editeur : Association of Geographic Information Laboratories in Europe AGILE Année de publication : 2004 Conférence : AGILE 2004, 7th international conference on geographic information science 29/04/2004 01/05/2004 Heraklion Grèce Open access proceedings Importance : pp 349 - 359 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] internet [Termes IGN] interopérabilité sémantique [Termes IGN] ontologie [Termes IGN] OWL [Termes IGN] service de géoinformation Résumé : (Auteur) E-business is emerging in the market for Geographic Information (GI). Mostly, offered products are data and some technical services, which do not match the demand of business customers. They require complex GI-solutions, which integrate human services, e.g. consulting, software adaptation, and training. We suggest electronic GI marketplaces for enabling GI service chains integrating technical human servies. The implentation of technical services in an internet business platform requires an ontology-based semantic description language. The most advanced language is OWL-S (formely DAML-S). The implementation of human services in internet based-service chains also requires semantics. This paper will demonstrate by a typical business scenario, that 1- OWL-S fulfills the requirements of a semantic enabling web description for human services and 2- integration of human and technical GI services in an internet-based service chain can be implemented by the common language OWL-S and thus enhancing GI business by connecting customers and providers. Numéro de notice : C2004-010 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication DOI : sans En ligne : https://agile-online.org/images/conferences/2004/documents/papers/4-2-2_Brox.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=65021

A prototype cross-border GML data service / L. Lehto (2004)  

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Quo vadis SDI? / A. Wytzisk (2004)  

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Towards the implementation of the European spatial data infrastructure: getting the process right / Lars Bernard (2004)  

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