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Aggregation-based information retrieval system for geospatial data catalogs

机译:基于聚集的地理空间数据目录信息检索系统

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摘要

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.
机译:地理空间数据目录使用户能够发现和访问地理信息。普遍的解决方案是面向文档的,并将地理空间数据的空间连续性分割成通过元数据描述的独立且不相关的资源。因此,查询的完整答案可能分散在多个资源中,从而使其查找和访问更加困难。本文提出了一种改进的地理空间数据目录信息检索过程,该过程通过识别资源元数据记录之间的隐式空间/主题关系来聚合搜索结果。这些聚合的构造方式使其与用户查询的匹配度要比单独与每个资源的匹配度更高。

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