As the amount of Linked Open Data on the web increases, so does the amount of this data with an inherent spatial context. Without spatial reasoning, however, the value of this additional context is limited. In this paper we look at the overall state of geospatial data in the Semantic Web, with a focus on the upcoming standard GeoSPARQL. We describe the motivation for GeoSPARQL, an example use c...

As geospatial data are becoming more widely used through mobile devices and location sensitive applications, the potential value of linked open geospatial data in particular has grown, and a foundation is being developed for the Semantic Geospatial Web. Protocols such as GeoSPARQL and stSPARQL extend SPARQL in order to take advantage of spatial relationships inherent in geospatial data. This pa...

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 attempts provide varying levels of support fo...

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 attempts provide varying levels of support fo...

Oracle Spatial and Graph – RDF Semantic Graph, an option for Oracle Database 12c, is the only mainstream commercial RDF triplestore that supports the OGC GeoSPARQL standard for spatial data on the Semantic Web. This demonstration will give an overview of the GeoSPARQL implementation in Oracle Spatial and Graph and will show how to load, index and query spatial RDF data. In addition, this demons...

We propose a series of tests that check for the compliance RDF triplestores with GeoSPARQL standard. The purpose benchmark is to test how many requirements outlined in standard tested system supports and push forward achieving full compliance. This topic concern because support varies greatly between different triplestore implementations, such great importance domain geospatial data. Additional...

The port of a city is a very dynamic environment that houses lots of companies. Ships come and go, and goods are always on the move. Information integration in geographic information systems is of great importance for tracking purposes, and for proactive and reactive incident handling by the port operators. Linked data and semantic web technologies can be of benefit for the integration of both ...

“Place” is an important concept providing a useful dimension to explore, align and analyze data on the Linked Data Web. Œough Linked Data datasets can use standardized geospatial predicates such as GeoSPARQL, access to SPARQL endpoints that supports these is not guaranteed. When not available, one needs to load the data into their own GeoSPARQL-enabled triplestores in order to avail of those pr...