Semantic annotation of geodata - a step towards interoperability and harmonization
| Authors | |
|---|---|
| Year of publication | 2009 |
| Type | Article in Proceedings |
| Conference | Symposium GIS Ostrava 2009 Proceedings |
| MU Faculty or unit | |
| Citation | |
| Field | Earth magnetism, geography |
| Keywords | semantic heterogeneity; semantic integration; semantic annotation; geo-ontology |
| Description | Widespread of user-friendly technology contribute largely to rapid increase of geoinformation users. Both need and offer of geodata rise. But users of geoinformation differ in their information needs and also their conceptualization of the real world may vary accordingly. As the technological interoperability seems to be highly accented and almost solved (thanks to activities of OGC), elimination of semantic interoperability is still a challenge. Data sharing by different geoinformation communities faces problem of the lack of semantic description which would be understandable across all disciplines. Solution seems to be using ontologies. Describing data by using ontologies and ontology sharing may profit both to users and producers of data. But geographic data is a very specific kind of data. Building ontology on geospatial domain and defining bridging concepts for different conceptualization is a crucial task for geographers. Presented paper describes theoretical principles of semantic data integration and annotation. Special attention is paid to domain of emergency management. Semantic heterogeneity issues are demonstrated on practical examples - the case study of topography base definition - on data commonly used in Czech Republic (topographic - ZABAGED, DMÚ and thematic datasets). |
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