Olaf Hartig
@olafhartig
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Senior Associate Professor in Computer Science at Linköping University, Amazon Scholar, research on database topics related to Web data and graph data
Linköping, Sverige
Joined December 2008
Big news! I am very grateful that @KAWstiftelsen has selected to support me and my research with a Wallenberg Academy Fellowship!
Forskarna Olaf Hartig och Alexander Gillett har utsetts till Wallenberg Academy Fellows vid Linköpings universitet. Det femåriga forskningsanslaget ger unga forskare möjlighet att göra viktiga vetenskapliga genombrott. @Wstiftelserna @KAWstiftelsen #Forskning
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RT @ApacheJena: Apache Jena 5.2.0 released! Includes experimental support for CDT (Composite Datatype Literals) htt���
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My implementation of our approach to capture generic types of composite values (lists and maps) in RDF and SPARQL has made it into the latest release of the @ApacheJena framework for building RDF and SPARQL applications! 🎉
Apache Jena 5.2.0 released! Includes experimental support for CDT (Composite Datatype Literals)
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@Kuzeko @chkashifrabbani @ang3ela @HoseKatja Automatically? How does your approach preserve the semantics of the given RDF graph? Or is semantics-preservation not guaranteed by your approach? Then, which properties does it guarantee? (Sorry, couldn't resist)
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RT @kuzudb: Our next video is out! This is the first of a 2-part video in which @semihsalihoglu explains Resource Description Framework (RD…
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RT @gradesnda: We will have an exciting program at GRADES-NDA next Friday. Make sure you drop by if you are at @SIGMODConf!!
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@LearningSPARQL @triggan Entry point to all the related material (including a test suite for implementers and pointers to implementations) at:
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RT @LearningSPARQL: Interesting proposal from @olafhartig and @triggan to have RDF represent lists (much better than in currently does) and…
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@wohnjalker Because it doesn't allow us to explicitly distinguish between lists and maps (some systems may choose to support only one or the other). Also, it wouldn't allow us to have IRIs or arbitrary literals as list/map elements.
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@Miel_vds @kinow @eswc_conf Because some systems may choose to support only one of the two. Also, in the future we might want to add cdt:Set or cdt:OrderedMap.
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