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Fwd: RE: RDF repository implementation

From: Brian McBride <bwm@hplb.hpl.hp.com>
Date: Wed, 21 May 2003 08:07:46 +0100
Message-Id: <5.1.0.14.0.20030521080704.05938fd8@localhost>
To: RDF Core <w3c-rdfcore-wg@w3.org>
Cc: christos@exch.hpl.hp.com

FYI - please send any other ideas to Christos.

Brian

>From: "Karamanolis, Christos" <christos@exch.hpl.hp.com>
>To: "McBride, Brian" <bwm@hplb.hpl.hp.com>
>Cc: "Karamanolis, Christos" <christos@exch.hpl.hp.com>
>Subject: RE: RDF repository implementation
>Date: Tue, 20 May 2003 22:38:37 +0100
>
>Hi Brian,
>
>Thanks for your input. Yes, please feel free to share my email with the
>other folks there. I will send any future questions / requests for help
>to the mailing list you suggested.
>
>We will look into Jena and Redland in some more detail and will get back
>to you (rdfi) if we need further help.
>
>-- Christos
>
>
> > -----Original Message-----
> > From: Brian McBride [mailto:bwm@hplb.hpl.hp.com]
> > Sent: Tuesday, May 20, 2003 7:00 AM
> > To: Karamanolis, Christos; 'brian_mcbride@hp.com'
> > Cc: Karamanolis, Christos
> > Subject: Re: RDF repository implementation
> >
> >
> > Hi Christos,
> >
> > Good to virtually meet you.
> >
> > A good place to send questions like this is rdfi@cally.hpl.hp.com.
> >
> > You seem to have the well known ones.  Your requirement for
> > C++ could be
> > the clincher.  The group here built Jena which would be what
> > you need were
> > you able to work in Java.  You could still do that if you
> > were happy with
> > the java native interface stuff, but I've heard reports of
> > problems with
> > that, especially going from native to java.  The only one of
> > these that I
> > know is native is Redland - which is written in C.
> >
> > I'd like to share your email with the rest of the folks here,
> > both so they
> > know about about you and lest they have more to say on the
> > subject.  Or you
> > could just join and mail to rdfi as above.
> >
> > Brian
> >
> > At 17:53 16/05/2003 -0700, Karamanolis, Christos wrote:
> > >Brian,
> > >
> > >I am a member of the storage systems group, at HPL Palo
> > Alto. We have
> > >recently started a new project to investigate the use of semantic
> > >information about data to do things such as fast searching
> > and efficient
> > >storage (e.g., in archival storage systems), or intelligent
> > data hoarding
> > >for placement and replication (e.g., in distributed storage
> > systems).
> > >Thinking about how we can capture semantics, we realized
> > that people have
> > >been doing this for the semantic web already. So, I am
> > currently thinking
> > >about using RDF to capture different types of semantic info
> > (exactly what
> > >types is an open question -- see
> > >http://www.hpl.hp.com/personal/Christos_Karamanolis/papers/ho
>tos03.pdf, if
> >you are interested). And I am looking for a tool to:
> >1) capture and store RDF relations between objects in some persistent,
> >lightweight repository;
> >2) use some simple query language to traverse those relations;
> >3) have an interface to define and modify the schemas of relations (we
> >expect them to change over time).
> >An additional requirement is that such a tool should be easy to
>integrate
> >in a (potentially distributed) archival storage system and a C/C++
> >development environment. No need for fancy web APIs.
> >
> >I understand that you are an expert in the field. I wonder if you could
>
> >provide some advice about existing tools that I should consider. Here
>is a
> >short list I compiled by looking around:
> >  - Sesame RDF Schema-based Repository and Querying Facility by Jeen
> > Broekstra and Arjohn Kampman, Aidministrator
> >  - Jena2 Semantic Web Toolkit Semantic Web Group, HP Labs, Bristol
> >  - RDFSuite, Institute of Computer Science, FORTH
> >  - Redland RDF Application Framework by Dave Beckett, Institute for
> > Learning and Research Technology, University of Bristol
> >  - RDFDB by R.V. Guha
> >
> >Any suggestions/opinions about those systems? Anything else I should
> >consider? I understand you have been one of the authors of Jena2.
> >
> >I would greatly appreciate any help. I have been swamped with all the
> >information I found out there.
> >
> >Thanks,
> >
> >         Christos
> >
> >
> >-- Christos Karamanolis
> >
> >Storage system group, HP Labs
> >Phone: (650) 857-6956
Received on Wednesday, 21 May 2003 03:07:14 EDT

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