If you are leaving it in MarkLogic then perhaps I am missing the point of extracting the relationships from the XML. You already have access to all the relationships in any one query without breaking them out into triples.
- Keith From: general-boun...@developer.marklogic.com [mailto:general-boun...@developer.marklogic.com] On Behalf Of Harry B. Sent: Tuesday, December 20, 2011 11:34 AM To: General MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] Anyone impelment a triple store on MarkLogic? It's not recreating the Universal Index. It's leveraging the universal index and that's what makes MarkLogic a great triple store. Done right, all your data is in memory and the indexes are used. Your app never touches the disk. On Tue, Dec 20, 2011 at 11:19 AM, Keith L. Breinholt <breinhol...@ldschurch.org<mailto:breinhol...@ldschurch.org>> wrote: So what you are proposing is recreating the Universal Index of MarkLogic? - Keith From: general-boun...@developer.marklogic.com<mailto:general-boun...@developer.marklogic.com> [mailto:general-boun...@developer.marklogic.com<mailto:general-boun...@developer.marklogic.com>] On Behalf Of seme...@hotmail.com<mailto:seme...@hotmail.com> Sent: Tuesday, December 20, 2011 10:59 AM To: general@developer.marklogic.com<mailto:general@developer.marklogic.com> Subject: Re: [MarkLogic Dev General] Anyone impelment a triple store on MarkLogic? Right so the triples would need to preserve the original relationships that they had in the XML otherwise you'd be losing information. But once the triples are created with all the relationship information preserved, it's easier to wander the relationships and do ad hoc queries. ________________________________ From: breinhol...@ldschurch.org<mailto:breinhol...@ldschurch.org> To: general@developer.marklogic.com<mailto:general@developer.marklogic.com> Date: Mon, 19 Dec 2011 23:36:57 +0000 Subject: Re: [MarkLogic Dev General] Anyone impelment a triple store on MarkLogic? Don't you mean just the opposite: Once you have data in triples or tuples only relationships expressed in the triples exist and all other relationships are gone. If you don't know the questions you want to ask you want the data in document context, i.e. in XML. - Keith From: general-boun...@developer.marklogic.com<mailto:general-boun...@developer.marklogic.com> [mailto:general-boun...@developer.marklogic.com]<mailto:[mailto:general-boun...@developer.marklogic.com]> On Behalf Of seme...@hotmail.com<mailto:seme...@hotmail.com> Sent: Monday, December 19, 2011 3:31 PM To: general@developer.marklogic.com<mailto:general@developer.marklogic.com> Subject: Re: [MarkLogic Dev General] Anyone impelment a triple store on MarkLogic? Ok great this really helps. It's seems to me that if you know your data and the questions you are going to ask, you might as well just use XML. But if you don't know the questions you'll ask or if you want to ask questions about friends of a friend, then triples will probably give greater advantage. ________________________________ Date: Mon, 19 Dec 2011 12:10:35 -0700 From: dna...@gmail.com<mailto:dna...@gmail.com> To: general@developer.marklogic.com<mailto:general@developer.marklogic.com> Subject: Re: [MarkLogic Dev General] Anyone impelment a triple store on MarkLogic? I was able to create a very efficient tuple store with the semantic code Mike mentioned. I ended up loading my tuples a bit differently, but the end result was having them all hashed so everything ran out of the index. I don't know how it performs relative to other DB's, but I know there was a presentation at MLUC 2010 about doing the billion tuple challenge on an Amazon Cluster. It was rather performant, as MarkLogic tends to be. That presentation might be floating around where you could get some more details of how it was done. On Mon, Dec 19, 2011 at 12:01 PM, Michael Blakeley <m...@blakeley.com<mailto:m...@blakeley.com>> wrote: Probably google would turn up https://github.com/marklogic/semantic and https://github.com/marklogic/sparql2xquery - but I don't have much to add to those links. -- Mike On 19 Dec 2011, at 10:19 , seme...@hotmail.com<mailto:seme...@hotmail.com> wrote: > I've heard some discussions about RDF and SPARQL on MarkLogic but I wasn't > really interested in that until now. I haven't come across any actual > implementations of a triple store on MarkLogic, but I'm guessing someone has > done it. This is a new area that I'm learning about and I'm trying to guage > the appropriateness of MarkLogic as a triple store vs other DB's purposefully > built to be triple stores. > > Any links or pointers to MarkLogic as a triple store would be appreciated > (beyond what a Google search would turn up). > > Thanks, > Ryan > _______________________________________________ > General mailing list > General@developer.marklogic.com<mailto:General@developer.marklogic.com> > http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list General@developer.marklogic.com<mailto:General@developer.marklogic.com> http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list General@developer.marklogic.com<mailto:General@developer.marklogic.com> http://developer.marklogic.com/mailman/listinfo/general NOTICE: This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. 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