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ANNOUNCEMENT: RDFStore 0.42

From: Alberto Reggiori <areggiori@webweaving.org>
Date: Fri, 31 Aug 2001 18:14:36 +0200
Message-ID: <3B8FB7EC.2D994CF2@webweaving.org>
To: RDFStore tech-list <rdfstore@yahoogroups.com>, Perl-XML <Perl-XML@listserv1.ActiveState.com>
CC: RDF Interest <www-rdf-interest@w3.org>, JRC shared tech account <techbrief@jrc.it>

         RDFStore - Perl API for RDF Storage
                   version 0.42
            http://rdfstore.sourceforge.net

RDFStore version 0.42 has been released to CPAN!

Changes:
        - implemented new compact indexing model to allow boolean and
free-text searches
        - added rdf2n3p.pl utility to generate N-triples
        - updated SiRPAC parser accordingly to some of the latest RDF
Core WG decisions
          (see
http://www.w3.org/2000/03/rdf-tracking/#attention-developers)
               * rdf-ns-prefix-confusion
               * rdfms-abouteachprefix
               * rdfms-empty-property-elements
               * rdf-containers-formalmodel
       - added PPM package for the latest snap shot for win32 users

This release introduces a new indexing model that uses RLE compression
of indexes
and allows free-text searches (word match) on literal values; such an
index it is quite suitable
for boolean queries also. A first attempt to use the N-Triples syntax
has been done by the rdf2n3.pl script; the SiRPAC perl parser is under
updating trying to keep it aligned with the RDF Core WG decisions. I
also planned to separate the RDF parser out from the main distribution
soon.

Next steps includes to implement the indexing algorithm in some C and XS
code to gain speed and
write a DBD driver for SQL-ish (SQUISH) queries over rdfstores.

I use to post upgrades and patches between releases through Yahoo at
http://groups.yahoo.com/group/rdfstore; I invite you to join if you are
interested.


Alberto
Received on Friday, 31 August 2001 12:01:39 GMT

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