Yes, I also think that N-Quad and Quad-Turtle look the same. The DBpedia 2015-04 version is the last version that offers .nq dataset downloads. So when I want to use the Virtuoso Bulk Loader and load a Quad-Turtle/N-Quad dataset then I can choose to load a 2015-4 dataset.
Perhaps I'd better take a top-down approach and explain what I want to achieve, instead of asking technical questions and you guys wonder why on earth I want to do this. ;-) What I want is the following. When I have entity A and an entity B, then I want to expose all the shared entities between A and B. A shared entity is an entity with any relationship from or to A, and also from or to B. When I only depend on the loaded datasets, that are loaded by default, then very often there are no shared entities found at all. That's why I want to load the pagelinks dataset. Because this drastically increases the chance that shared entities will be found. There is proof of concept, because Rasmus Krempel has made a working prototype based on this method for his PhD thesis. http://lwmap.uni-koeln.de/ But I want to go a step further because the <http://dbpedia.org/ontology/wikiPageWikiLink> relationship does not tell you anything about *why* there is a relationship. So I want to put this in a context for the user to see, and grab a couple of text lines from the Wikipedia article that surround the wiki page link. And that is why I need a Quad-Turtle/N-Quad turtle dataset with provenance information. Because then I can do this. Probably I also want to grab the section header and show it to the user. And perhaps I can use NLP to find more occurrences of the linked entity in the article text, and understand the context. (I want to fetch the text of a Wikipedia article using the Wikimedia API.) I hope this puts things into perspective. Do you think this is feasible, or does anybody have any ideas for another or better way to achieve this? Cheers, Marco On 11/11/16 03:53, Markus Freudenberg wrote: > Just as a general comment: > > .ttl - Turtle serialization: <subject> <predicate> <object>. > > .tql - Quad-Turtle serialization: <subject> <predicate> <object> > <context/graph> > which is the same as n-quad. > > The context in the quad files holds some triple level provenance like > the original wikipedia Iri and others and should be (usually) neglected > when loaded into a triple-store. > > So best to use the .ttl files in your case. > > Cheers, > > Markus Freudenberg > > Release Manager, DBpedia <http://wiki.dbpedia.org> > > On Fri, Nov 11, 2016 at 11:35 AM, Hugh Williams > <hwilli...@openlinksw.com <mailto:hwilli...@openlinksw.com>> wrote: > > Hi Marco, > > Hmmm, according to http://rdfpro.fbk.eu/tql.html a tql file is a > turtle quad file, supported by Virtuoso and looking at such files > which looks like an nquad file to me which is support by Virtuoso, > but as said we load the ttl file and specify our own graph names in > the DBpedia instance we host … > > Best Regards > Hugh Williams > Professional Services > OpenLink Software, Inc. // http://www.openlinksw.com/ > Weblog -- http://www.openlinksw.com/blogs/ > <http://www.openlinksw.com/blogs/> > LinkedIn -- http://www.linkedin.com/company/openlink-software/ > <http://www.linkedin.com/company/openlink-software/> > Twitter -- http://twitter.com/OpenLink > Google+ -- http://plus.google.com/100570109519069333827/ > <http://plus.google.com/100570109519069333827/> > Facebook -- http://www.facebook.com/OpenLinkSoftware > <http://www.facebook.com/OpenLinkSoftware> > Universal Data Access, Integration, and Management Technology Providers > >> On 11 Nov 2016, at 09:55, Marco Christis | Blixem Media >> <ma...@blixem.com <mailto:ma...@blixem.com>> wrote: >> >> Hi Hugh, >> >> The specific dataset I want to load is the 2015-10 version of the >> pagelinks dataset. >> http://downloads.dbpedia.org/2015-10/core-i18n/en/page_links_en.tql.bz2 >> <http://downloads.dbpedia.org/2015-10/core-i18n/en/page_links_en.tql.bz2> >> >> The reason why I choose the quad-turtle format is because I need >> the provenance information in my project. >> >> Thanks for your quick response. >> >> Marco >> >> >> On 11/11/16 01:42, Hugh Williams wrote: >>> Hi Marco, >>> >>> >>> The Dbpedia datasets are generally available in both ttl and tql >>> forms >>> and we load ttl.bz2 files which is how all the DBpedia datasets are >>> loaded into Virtuoso. >>> >>> Or have you found a dataset that is only available in tql form, >>> which is >>> not a format I am familiar with but appears to be some SQL Server >>> file >>> format ??? >>> >>> Best Regards >>> Hugh Williams >>> Professional Services >>> OpenLink Software, Inc. // >>> http://www.openlinksw.com/ <http://www.openlinksw.com/> >>> Weblog -- http://www.openlinksw.com/blogs/ >>> <http://www.openlinksw.com/blogs/> >>> LinkedIn -- http://www.linkedin.com/company/openlink-software/ >>> <http://www.linkedin.com/company/openlink-software/> >>> Twitter -- http://twitter.com/OpenLink >>> Google+ -- http://plus.google.com/100570109519069333827/ >>> <http://plus.google.com/100570109519069333827/> >>> Facebook -- http://www.facebook.com/OpenLinkSoftware >>> <http://www.facebook.com/OpenLinkSoftware> >>> Universal Data Access, Integration, and Management Technology >>> Providers >>> >>>> On 11 Nov 2016, at 09:23, Marco Christis | Blixem Media >>>> <ma...@blixem.com >>>> <mailto:ma...@blixem.com> <mailto:ma...@blixem.com >>>> <mailto:ma...@blixem.com>>> wrote: >>>> >>>> Hi All, >>>> >>>> I have an EC2 instance running on AWS with the DBpedia 2015-10 >>>> edition. >>>> I want to load an additional .tql (quad-turtle) dataset but the >>>> Virtuoso >>>> Bulk Loader does not support .tql datasets. What is a good (and >>>> relative >>>> easy) way to load a .tql dataset? >>>> >>>> See the supported formats under the Prerequisites on the >>>> following page. >>>> >>>> https://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtBulkRDFLoader >>>> >>>> <https://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtBulkRDFLoader> >>>> >>>> Cheers, >>>> Marco >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Developer Access Program for Intel Xeon Phi Processors >>>> Access to Intel Xeon Phi processor-based developer platforms. >>>> With one year of Intel Parallel Studio XE. >>>> Training and support from Colfax. >>>> Order your platform today. http://sdm.link/xeonphi >>>> _______________________________________________ >>>> DBpedia-developers mailing list >>>> DBpedia-developers@lists.sourceforge.net >>>> <mailto:DBpedia-developers@lists.sourceforge.net> >>>> https://lists.sourceforge.net/lists/listinfo/dbpedia-developers >>>> <https://lists.sourceforge.net/lists/listinfo/dbpedia-developers> > > > > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today. http://sdm.link/xeonphi > _______________________________________________ > DBpedia-developers mailing list > DBpedia-developers@lists.sourceforge.net > <mailto:DBpedia-developers@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/dbpedia-developers > <https://lists.sourceforge.net/lists/listinfo/dbpedia-developers> > > ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. 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