Michalis Alexakis

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Integrating data from heterogeneous sources has led to the development of Extract-Transform-Load (ETL) systems and methodologies, as a means of addressing modern interoperability challenges. A few such tools have been available for converting between geospatial formats, but none specifically addressing the emerging needs of geospatially-enabled RDF stores.(More)
A wealth of data and services are available on the Web, and often have geographical context as well. But the vast quantity of offered geospatial information is rather difficult to explore, and its quality hard to assess, due to lack of sufficient metadata. Hence, the Open Geospatial Consortium has specified application profiles for publishing, accessing,(More)
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