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Posted to java-user@lucene.apache.org by phani kumar <ph...@googlemail.com> on 2007/02/08 19:18:57 UTC
Indexing a RDF document using lucene
Hi,
I want to index a rdf document using lucene.RDF consists of a subject
,predicate ,object(as triples).suppose given a set of keywords defining a
search,we want to match the URIrefs containg those keywords.so how can i
index the triples using the lucene.please provide some help how to hash each
URIres to token and index the docucument using lucene.For example
<?xml version="1.0"?><rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:si="http://www.recshop.fake/siteinfo#">
<rdf:Description rdf:about="http://www.w3schools.com/RDF">
<si:author>Jan</si:author>
<si:homepage>http://www.w3schools.com</si:homepage>
</rdf:Description>
</rdf:RDF>
subject predicate object
{http://www.w3schools.com/RDF, http://www.recshop.fake/siteinfo#author ,
"Jan" }
{http://www.w3schools.com/RDF ,http://www.recshop.fake/siteinfo#homepage, "
http://www.w3schools.com"}
in above rdf document the subject, predicate,object are given,in some cases
an object can also be an URIref. how can i index this document using
lucene.how can URIrefs indexed along string literals using
lucene.pleasegive some help on indexing and searching on RDF
documents.
Thank you.
phani.
Re: Indexing a RDF document using lucene
Posted by phani kumar <ph...@googlemail.com>.
Hi Erik,
When i search for string for example "jan" in the above example,it should
return me the class and property its associated as URI's and full text of
object and the RDF document which it is contained.how can i acheive this.
Thanks,
phani.
On 2/8/07, Erik Hatcher <er...@ehatchersolutions.com> wrote:
>
> Elaborate on your querying needs :)
>
> Erik
>
>
> On Feb 8, 2007, at 1:18 PM, phani kumar wrote:
>
> > Hi,
> >
> > I want to index a rdf document using lucene.RDF consists of a subject
> > ,predicate ,object(as triples).suppose given a set of keywords
> > defining a
> > search,we want to match the URIrefs containg those keywords.so how
> > can i
> > index the triples using the lucene.please provide some help how to
> > hash each
> > URIres to token and index the docucument using lucene.For example
> >
> > <?xml version="1.0"?><rdf:RDF
> > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
> > xmlns:si="http://www.recshop.fake/siteinfo#">
> > <rdf:Description rdf:about="http://www.w3schools.com/RDF">
> > <si:author>Jan</si:author>
> > <si:homepage>http://www.w3schools.com</si:homepage>
> > </rdf:Description>
> > </rdf:RDF>
> >
> >
> > subject predicate object
> >
> > {http://www.w3schools.com/RDF, http://www.recshop.fake/
> > siteinfo#author ,
> > "Jan" }
> >
> >
> > {http://www.w3schools.com/RDF ,http://www.recshop.fake/
> > siteinfo#homepage, "
> > http://www.w3schools.com"}
> >
> >
> >
> > in above rdf document the subject, predicate,object are given,in
> > some cases
> > an object can also be an URIref. how can i index this document using
> > lucene.how can URIrefs indexed along string literals using
> > lucene.pleasegive some help on indexing and searching on RDF
> > documents.
> >
> >
> > Thank you.
> > phani.
>
>
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> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
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>
Re: Indexing a RDF document using lucene
Posted by Erik Hatcher <er...@ehatchersolutions.com>.
Elaborate on your querying needs :)
Erik
On Feb 8, 2007, at 1:18 PM, phani kumar wrote:
> Hi,
>
> I want to index a rdf document using lucene.RDF consists of a subject
> ,predicate ,object(as triples).suppose given a set of keywords
> defining a
> search,we want to match the URIrefs containg those keywords.so how
> can i
> index the triples using the lucene.please provide some help how to
> hash each
> URIres to token and index the docucument using lucene.For example
>
> <?xml version="1.0"?><rdf:RDF
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
> xmlns:si="http://www.recshop.fake/siteinfo#">
> <rdf:Description rdf:about="http://www.w3schools.com/RDF">
> <si:author>Jan</si:author>
> <si:homepage>http://www.w3schools.com</si:homepage>
> </rdf:Description>
> </rdf:RDF>
>
>
> subject predicate object
>
> {http://www.w3schools.com/RDF, http://www.recshop.fake/
> siteinfo#author ,
> "Jan" }
>
>
> {http://www.w3schools.com/RDF ,http://www.recshop.fake/
> siteinfo#homepage, "
> http://www.w3schools.com"}
>
>
>
> in above rdf document the subject, predicate,object are given,in
> some cases
> an object can also be an URIref. how can i index this document using
> lucene.how can URIrefs indexed along string literals using
> lucene.pleasegive some help on indexing and searching on RDF
> documents.
>
>
> Thank you.
> phani.
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