Matches in ScholarlyData for { ?s ?p ?o. }
- 2 keyword "linked data".
- 2 title "Geographical Linked Data: The Administrative Geography of Great Britain on the Semantic Web".
- authorList type List.
- authorList hasFirstItem item-1.
- authorList hasItem item-1.
- authorList hasItem item-2.
- authorList hasItem item-3.
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- item-1 type ListItem.
- item-1 hasContent john-goodwin.
- item-1 next item-2.
- item-2 type ListItem.
- item-2 hasContent catherine-dolbear.
- item-2 next item-3.
- item-2 previous item-1.
- item-3 type ListItem.
- item-3 hasContent glen-hart.
- item-3 previous item-2.
- 3 creator eliseo-clementini.
- 3 creator francesco-tarquini.
- 3 type InProceedings.
- 3 label "Spatial Relations between Classes as Integrity Constraints".
- 3 sameAs 3.
- 3 abstract "The quality and integrity of spatial data is very important to support interoperability among different systems. To reach this aim integrity rules defined by the application play an important role (for example, constraints between object classes). In the paper, we propose a methodology to define integrity constraints using user level spatial relations between classes of individuals. We will also provide mapping rules from user level relations to geometric level operators to allow the computation of relations. As a case study, we will define the constraints for the class of rivers and some of its specializations.".
- 3 hasAuthorList authorList.
- 3 isPartOf proceedings.
- 3 keyword "class relations".
- 3 keyword "integrity constraints".
- 3 keyword "spatial ontology".
- 3 keyword "user spatial relations".
- 3 title "Spatial Relations between Classes as Integrity Constraints".
- authorList type List.
- authorList hasFirstItem item-1.
- authorList hasItem item-1.
- authorList hasItem item-2.
- authorList hasLastItem item-2.
- item-1 type ListItem.
- item-1 hasContent francesco-tarquini.
- item-1 next item-2.
- item-2 type ListItem.
- item-2 hasContent eliseo-clementini.
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- 4 creator eva-klien.
- 4 creator joerg-hoffman.
- 4 creator laurentiu-vasiliu.
- 4 creator raluca-zaharia.
- 4 type InProceedings.
- 4 label "Semantic Execution Meets Geospatial Web Services: A Pilot Application".
- 4 sameAs 4.
- 4 abstract "Geospatial web services can be enhanced with semantic web service techniques in order to solve the existing interoperability issues in the geospatial domain. Therefore a large number of services can be composed to provide meaningful results to complex geospatial queries, but as the complexity grows, the users face serious performance problems. On top of existing geospatial web services we adopt the WSMOLX framework which provides a model to define machine and human-understandable semantic descriptions, full support for mediation and a simple language to choreograph the execution of a composition of several geospatial web services. Our research focus is on the semantic execution and its performance inside the WSMX platform. Our core contributions are a) providing a solution for automated semantic execution of geospatial queries and b) providing a combination of techniques and improvements to the efficiency aspect.".
- 4 hasAuthorList authorList.
- 4 isPartOf proceedings.
- 4 keyword "Abstract State Machines".
- 4 keyword "Geospatial applications".
- 4 keyword "Semantic Web Services".
- 4 keyword "Semantic execution".
- 4 keyword "WSMO/WSML/WSMX".
- 4 title "Semantic Execution Meets Geospatial Web Services: A Pilot Application".
- authorList type List.
- authorList hasFirstItem item-1.
- authorList hasItem item-1.
- authorList hasItem item-2.
- authorList hasItem item-3.
- authorList hasItem item-4.
- authorList hasLastItem item-4.
- item-1 type ListItem.
- item-1 hasContent raluca-zaharia.
- item-1 next item-2.
- item-2 type ListItem.
- item-2 hasContent laurentiu-vasiliu.
- item-2 next item-3.
- item-2 previous item-1.
- item-3 type ListItem.
- item-3 hasContent joerg-hoffman.
- item-3 next item-4.
- item-3 previous item-2.
- item-4 type ListItem.
- item-4 hasContent eva-klien.
- item-4 previous item-3.
- 5 creator chiara-renso.
- 5 creator emiliano-giovannetti.
- 5 creator laura-spinsanti.
- 5 creator maria-masserotti.
- 5 creator miriam-baglioni.
- 5 type InProceedings.
- 5 label "Ontology-supported Querying of Geographical Databases".
- 5 sameAs 5.
- 5 abstract "Natural language interface offers a good solution to the problem of querying geographical information systems from non expert users. Queries over geographical data are characterized by requests of localization and typically they use implicit spatial relations between objects. Furthermore, users can be interested in referring to some domain concept not explicitly represented in data. To handle such semantic geospatial queries, we present a methodology that translates natural language queries into spatial SQL statements on a database. This approach is driven by an ontology built upon the spatial database and enriched by general domain concepts and properties to deal with localization of objects. Some examples of the use of the methodology in the urban domain are presented.".
- 5 hasAuthorList authorList.
- 5 isPartOf proceedings.
- 5 keyword "GeoOntology".
- 5 keyword "Geographic Information System".
- 5 keyword "Geographical Database".
- 5 keyword "Natural Language Querying System".
- 5 title "Ontology-supported Querying of Geographical Databases".
- authorList type List.
- authorList hasFirstItem item-1.
- authorList hasItem item-1.
- authorList hasItem item-2.
- authorList hasItem item-3.