By Peter van Oosterom, Sisi Zlatanova
Tasks, reminiscent of encourage and the U.S. DHS Geospatial info version, are operating to strengthen a wealthy set of criteria that would create harmonized types and issues for the spatial info infrastructure. even if, this can be merely step one. Semantically significant types needs to nonetheless be built so as to stimulate interoperability. developing Spatial details Infrastructures (SII) offers options to the issues fighting the release of a really potent SII. best specialists in SII improvement current an entire evaluation of SII, together with person and alertness wishes, theoretical and technological foundations, and examples of discovered operating SII’s. The ebook comprises semantic purposes in every one dialogue and explains their significance to the way forward for geo-information standardization. providing sensible recommendations to technical and nontechnical stumbling blocks, this publication presents the instruments had to take your next step towards a operating semantic web—one that may revolutionize the best way the area accesses and makes use of spatial info.
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Extra info for Creating Spatial Information Infrastructures: Towards the Spatial Semantic Web
In an SII, such thesauri should be made available as Web services, such that they can be queried by other services and/or clients. ). For overcoming problems caused by different geographic names used in different languages, multilingual gazetteers can be used. In the EuroGeoNames (EGN) project, a Web service will be implemented that provides access to the official, multilingual geographical names data held at the national level across Europe (Sievers and Zaccheddu 2005). org (http://www. org/) database and Web services, which are available under a creative commons attribution license.
However, because the standards are very broadly specified (in order to encompass all kinds of data), the definitions of some elements are not very clear or overlapping. This can lead to different interpretations of the quality elements, for example, how can conceptual consistency (adherence to rules of the conceptual schema) be distinguished from completeness (objects are present or overrepresented)? An approach to streamline description models of quality could be profiling of quality schemas for certain types of data.
In the chapter, we have tried to provide the current status and guide future research in the areas that are important for the successful implementation for a European Spatial Information Infrastructure. ACKNOWLEDGMENTS We would like to thank our colleagues in the Spatial Data Infrastructures Unit for their input and help with this chapter. In particular, we would like to thank Nicole Ostländer and Michel Millot, who have given us valuable comments and suggestions. , A. Illert, and T. Sarjakoski.