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Much of the information stored on the web contains geographical context, but current search engines treat such context in the same way as all other content. In this paper the design, implementation and evaluation of a spatially-aware search engine are described which is capable of handling queries in the form of the triplet of <theme><spatial(More)
As many cities around the world provide access to raw public data along the Open Data movement, many questions arise concerning the accessibility of these data. Various data formats, duplicate identifiers, heterogeneous metadata schema descriptions, and diverse means to access or query the data exist. These factors make it difficult for consumers to reuse(More)
Geographic information retrieval is a new and evolving domain. The development of GIR systems requires the analysis of requirements for such systems and, after systems are implemented their evaluation. This paper describes requirement analysis and evaluation for the SPIRIT system. Methods of user and system-centred evaluation are described and a methodology(More)
The generic evaluation methodology defined in D20 has been refined to apply to SPIRIT final prototype. It includes user tests to evaluate how well users perform with SPIRIT, possibly as compared with other similar systems. It also includes performance testing based on a specific Test Collection. Evaluation of SPIRIT prototype following integration and(More)
In recent years, with the advent of the web of data, a growing number of national mapping agencies tend to publish their geospatial data as Linked Data. However, differences between traditional GIS data models and Linked Data model can make the publication process more complicated. Besides, it may require , to be done, the setting of several parameters and(More)
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