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As the amount of Linked Open Data on the web increases, so does the amount of data with an inherent spatial context. Without spatial reasoning, however, the value of this spatial context is limited. Over the past decade there have been several vocabularies and query languages that attempt to exploit this knowledge and enable spatial reasoning. These(More)
As an increasing number of applications on the web contain some elements of spatial data, there is a need to efficiently integrate Semantic Web technologies and spatial data processing. This paper describes a prototype system for storing spatial data and Semantic Web data together in a SPatiallyAUgmented Knowledgebase (SPAUK) without sacrificing query(More)
This short paper summarizes a survey of ontologies relevant to geospatial intelligence. 45 geospatial and temporal ontologies, in 11 categories, were assessed against 3 use cases: annotation, qualitative reasoning, and information integration. Specific recommendations and more general conclusions are provided. The paper presents an illustration of a feature(More)
As the amount of Linked Open Data on the web increases, so does the amount of data with an inherent spatial context. Without spatial reasoning, however, the value of this spatial context is limited. Over the past decade there have been several vocabularies and query languages that attempt to exploit this knowledge and enable spatial reasoning. These(More)
Trajectory data have been used in a variety of studies, including human behavior analysis, transportation management, and wildlife tracking. While each study area introduces a different perspective, they share the need to integrate positioning data with domain-specific information. Semantic annotations are necessary to improve discovery, reuse, and(More)
Though significant research has been done in the realm of information integration, continuously increasing amounts and complexity of data demand more advanced techniques for its access. Semantic Web technologies such as OWL and SWRL provide the capacity for rich definitions of data sources, global views, and the mappings between them. An information(More)