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Querying Linked Data

by European Project on Feb 28, 2013

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This presentation looks in detail at SPARQL (SPARQL Protocol and RDF Query Language) and introduces approaches for querying and updating semantic data. It covers the SPARQL algebra, the SPARQL ...

This presentation looks in detail at SPARQL (SPARQL Protocol and RDF Query Language) and introduces approaches for querying and updating semantic data. It covers the SPARQL algebra, the SPARQL protocol, and provides examples for reasoning over Linked Data. We use examples from the music domain, which can be directly tried out and ran over the MusicBrainz dataset. This includes gaining some familiarity with the RDFS and OWL languages, which allow developers to formulate generic and conceptual knowledge that can be exploited by automatic reasoning services in order to enhance the power of querying.

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http://www.euclid-project.eu 1768
http://euclid-project.eu 303
http://data.linkededucation.org 88
http://oci.open.ac.uk 4
http://www.linkedin.com 1
https://www.linkedin.com 1

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  • mariamaleshkova Maria Maleshkova The webinars to the slides are available at: Part I http://vimeo.com/61618438 Part II http://vimeo.com/61618437 1 year ago
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  • BarryNorton Barry Norton, Solutions Architect at Ontotext AD From Slide 22 the newer MusicBrainz mapping has a finer-grained distinction between 'album' (SignalGroup), and 'record' (the container of tracks), which is an artifact of a 'release' (of the album at a point in time). The examples are all encoded fully at:
    http://euclid.sti2.org/Exercises/Exercise2

    (Login is exercise2/exercise2)
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  • BarryNorton Barry Norton, Solutions Architect at Ontotext AD On Slide 23 the variable ?date in the projection does not belong 1 year ago
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  • BarryNorton Barry Norton, Solutions Architect at Ontotext AD Angle brackets are missing around the Music Ontology's namespace on Slide 21 (and the DBpedia ontology namespace is unneeded). 1 year ago
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  • BarryNorton Barry Norton, Solutions Architect at Ontotext AD On Slide 32 the regex is over-defined.

    Without a start of string anchor ('^'), or an end of string anchor ('$'), it's unnecessary to have match-alls ('.*'). The substring will match with just ('love').
    1 year ago
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Querying Linked Data Querying Linked Data Presentation Transcript