On 16 Dec 2009, at 00:43, John Abjanic wrote: > FILTER regex(?label, "(?i)engine"@en).
I haven't seen this (?i) syntax before. I would have tried something like regex(?label, ".*engine", "i") .* matches any sequence of characters. The third parameter should make the match case insensitive. I don't think that the @en is going to work here, you'll have to use a separate FILTER with lang(?label)="en" or something like that. I haven't tried anything of the above, so my apologies if it's rubbish :-/ Richard > > } > > > Thanks, John > > > -----Original Message----- > From: Mauricio Chicalski [mailto:[email protected]] > Sent: Tuesday, December 15, 2009 2:32 PM > To: John Abjanic > Cc: Richard Cyganiak; [email protected] > Subject: Re: [Dbpedia-discussion] problem with SPARQL query > > hi, > with jena i use > PREFIX fn:<http://www.w3.org/2005/xpath-functions# > <http://www.w3.org/2005/xpath-functions> > > ... > fn:contains(srt(?z), 'abc') > > I dont remember why virtuoso get error with fn, so u need to use > bif:contains(), no external ns needed > > ex: > PREFIX property: <http://dbpedia.org/property/> > > SELECT ?y ?z > WHERE > { > <http://dbpedia.org/resource/Land_Rover> ?y ?z . > FILTER bif:contains(?z, 'made') > } > > if u try this filter in a large resultset it will time out > > =] > On Tue, Dec 15, 2009 at 7:50 PM, John Abjanic <[email protected]> > wrote: > I also tried the following but it timed out, no response: > > PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns# > <http://www.w3.org/1999/02/22-rdf-syntax-ns> > > PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema# > <http://www.w3.org/2000/01/rdf-schema> > > > SELECT ?label ?x > WHERE > { > ?x rdfs:label ?label. > FILTER regex(?label, "(?i)engine"@en). > > > Please advise. > > -John > > -----Original Message----- > From: Richard Cyganiak [mailto:[email protected]] > Sent: Tuesday, December 15, 2009 12:43 PM > To: John Abjanic > Cc: [email protected] > Subject: Re: [Dbpedia-discussion] problem with SPARQL query > Hi John, > > Try "Jet engine"@en. The literal has an RDF language tag to indicate > that it's the English label. > > Best, > Richard > > > > > On 15 Dec 2009, at 19:47, John Abjanic wrote: > >> Hello all, >> >> I am trying to do the following: >> >> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns# > <http://www.w3.org/1999/02/22-rdf-syntax-ns> > >> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema# > <http://www.w3.org/2000/01/rdf-schema> > >> >> SELECT ?label ?x >> WHERE >> { >> ?x rdfs:label ?label. >> ?x rdfs:label "Jet engine" >> >> } >> >> >> and I get no results >> but when I try: >> >> SELECT ?s ?p ?o >> WHERE { >> ?s ?p ?o. >> FILTER(?s = <http://dbpedia.org/resource/Jet_engine> ). >> } >> >> I get results and there is label for "Jet engine" >> >> http://dbpedia.org/resource/Jet_engine >> http://www.w3.org/2000/01/rdf-schema#label >> Jet engine >> >> >> >> >> Why does the 1st SPARQL not work right? >> >> Thanks, John >> > ------------------------------------------------------------------------ > ------ >> This SF.Net email is sponsored by the Verizon Developer Community >> Take advantage of Verizon's best-in-class app development support >> A streamlined, 14 day to market process makes app distribution fast >> and easy >> Join now and get one step closer to millions of Verizon customers >> http://p.sf.net/sfu/verizon-dev2dev >> _______________________________________________ >> Dbpedia-discussion mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > > > ------------------------------------------------------------------------ > ------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast > and > easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Dbpedia-discussion mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
