2013
DOI: 10.1007/978-3-642-38288-8_18
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Representation and Querying of Valid Time of Triples in Linked Geospatial Data

Abstract: We introduce the temporal component of the stRDF data model and the stSPARQL query language, which have been recently proposed for the representation and querying of linked geospatial data that changes over time. With this temporal component in place, stSPARQL becomes a very expressive query language for linked geospatial data, going beyond the recent OGC standard GeoSPARQL, which has no support for valid time of triples. We present the implementation of the stSPARQL temporal component in the system Strabon, a… Show more

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Cited by 48 publications
(48 citation statements)
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“…Several extensions of the data model RDF and the query language stSPARQL were proposed in literature. The data model stRDF and the query language stSPARQL are extensions of RDF and SPARQL 1.1 respectively, developed for the representation and querying of spatial (Kyzirakos et al, 2012) and temporal data (i.e., the valid time of triples (Bereta et al, 2013)). More specifically, the data model stRDF proposes the representation of geometries as literals of the datatypes Well-known-text (WKT) and GML, that are OGC standards.…”
Section: Rdf and Sparqlmentioning
confidence: 99%
See 1 more Smart Citation
“…Several extensions of the data model RDF and the query language stSPARQL were proposed in literature. The data model stRDF and the query language stSPARQL are extensions of RDF and SPARQL 1.1 respectively, developed for the representation and querying of spatial (Kyzirakos et al, 2012) and temporal data (i.e., the valid time of triples (Bereta et al, 2013)). More specifically, the data model stRDF proposes the representation of geometries as literals of the datatypes Well-known-text (WKT) and GML, that are OGC standards.…”
Section: Rdf and Sparqlmentioning
confidence: 99%
“…Other extensions of RDF and SPARQL were also proposed, such as the framework of stRDF and stSPARQL which extends RDF and SPARQL with both space and time features (Kyzirakos et al, 2010, Bereta et al, 2013. These standards of geospatial support have also been implemented in several RDF stores, such as Parliament 1 , uSeekM 2 , Virtuoso 3 , Stardog 4 and Strabon 5 (Kyzirakos et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…In the former, the temporal information attached to a triple may either be an interval or a timestamp representing an instant. [3,6,7,10] The difference between interval and timestamp is not deeply relevant; with an interval representation, one can always simulate a timestamp by setting the start and end points of the interval to be identical, with no loss of information. For the purposes of this work, given the requirement to group sections of the data stream in order to implement what is needed for verification, it seems most appropriate to use the graph approach.…”
Section: Temporal Graphs On the Ethereum Distributed Ledgermentioning
confidence: 99%
“…New specifications, such as OWL-Time, have been developed [40,41]. Some space-time modeling works applying these standards can be found in [42][43][44][45]. For instance, Bereta and colleagues developed a new query language stSPARQL (space-time semantic web query language) to support expressive encoding of time in OWL ontologies [43].…”
Section: Progress In Developing a Spatiotemporal Reasoning Platformmentioning
confidence: 99%
“…Some space-time modeling works applying these standards can be found in [42][43][44][45]. For instance, Bereta and colleagues developed a new query language stSPARQL (space-time semantic web query language) to support expressive encoding of time in OWL ontologies [43]. Huang and Deng [44] pointed out the importance of enabling spatio-temporal reasoning based on geo-ontology and SWRL (Semantic Web Rule Language); however, they only touched very briefly and conceptually on the solution.…”
Section: Progress In Developing a Spatiotemporal Reasoning Platformmentioning
confidence: 99%