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Aggregation-based information retrieval system for geospatial data catalogs
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DOI：10.1080/13658816.2017.1319949.png)
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摘要
En 中文
Geospatial data catalogs enable users to discover and access geographical information. Prevailing solutions are document oriented and fragment the spatial continuum of the geospatial data into independent and disconnected resources described through metadata. Due to this, the complete answer for a query may be scattered across multiple resources, making its discovery and access more difficult. This paper proposes an improved information retrieval process for geospatial data catalogs that aggregates the search results by identifying the implicit spatial/thematic relations between the metadata records of the resources. These aggregations are constructed in such a way that they match better the user query than each resource individually.
Keyword:
Geospatial data catalog
information retrieval
catalog service for the web
spatial data infrastructure
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