W3C home > Mailing lists > Public > w3c-wai-er-ig@w3.org > May 2003

Re: Sesame

From: Libby Miller <Libby.Miller@bristol.ac.uk>
Date: Sun, 11 May 2003 12:41:22 +0100 (BST)
To: Shadi Abou-zahra <shadi@abou-zahra.net>
cc: w3c-wai-er-ig <w3c-wai-er-ig@w3.org>
Message-ID: <Pine.GSO.4.44.0305111228240.14155-100000@mail.ilrt.bris.ac.uk>


hi Shadi

I'm the author of Inkling, and I should emphasise that it's
experimental, demonstrator software, which I'm also in the process of
rewriting significantly, with the emphasis on smallness and ease of use.

I built it for myself - I'm a Semantic Web researcher - and I can't
really provide a great deal of support for it, nor guarantee that it
will work in a scalable way (it can however handle 200,000+ triples
comfortably with a postgres backend database, and I'm happy to answer
questions and help where I can. It's also handy for testing experimental
approaches to querying small documents, for example using
http://swordfish.rdfweb.org:085/rdfquery, and the little demo I wrote
at a WAI meeting which you reference below).

If you want something scalable and well-supported, Sesame and Jena are
good choices for Java. Sesame and Jena support a similar query language
to Squish (RDQL); Sesame also has two other query languages - RQL and
SeRQL, and support for simple inferencing (subclassing and
subproperties). The Sesame and Jena developers are friendly and
helpful, and can be found on IRC (irc.freenode.net channel #rdfig) and
on various mailing lists (www-rdf-rules@w3.org (RDF query),
jena-dev@yahoogroups.com, jena-devel@sourceforge.net).

I'm part of a project called SWAD-Europe
(http://www.w3.org/2001/sw/Europe/), and we have been doing some surveys
and reports on various aspects of RDF storage and query - you can find
them here:

http://www.w3.org/2001/sw/Europe/reports/intro.html

Hope that helps

Libby


On Sat, 10 May 2003, Shadi Abou-zahra wrote:

>
> hello,
>
> while experimenting with different approaches to query EARL results i
> looked at two implementations:
>
> * Inkling - SquishQL based
>   http://swordfish.rdfweb.org/discovery/2001/10/earl/
>
> * Sesame - RQL based
>   http://sesame.aidministrator.nl
>
> even though Sesame seems to be more flexible (finer query granularity
> possible), i ask myself if the overhead involved in such an approach is
> justified as i couldn't think of any vital EARL queries that can't be
> covered using SquishQL. on the other hand it may not be wise to restrict
> my EARL querying application from the start.
>
> anyway, i'm just curious to know if anyone else has experience with any
> of these implementations and what your thoughts on them regarding EARL
> queries are.
>
> thanks,
>   shadi
>
>
>
Received on Sunday, 11 May 2003 07:41:55 GMT

This archive was generated by hypermail 2.2.0 + w3c-0.30 : Thursday, 9 June 2005 12:10:42 GMT