Are using the following commands: Loading dataset *$JENAROOT/bin/tdbloader -loc=/home/alysson/Documents/PUC-Rio/TestJena/tdb2-citation-data-en tdb_citation.ttl *
Create index: *java -cp /home/alysson/MEGA/Computação/ApacheJena/apache-jena-fuseki-3.8.0/fuseki-server.jar jena.textindexer --desc=index.ttl* While the command above is running appear the following result: [image: Screenshot from 2018-07-18 14-34-15.png] After the creation of the index, I execute the query: *prefix text: <http://jena.apache.org/text# <http://jena.apache.org/text#>>* *select ?s ?o* *where{* * ?s text:query( <http://dbpedia.org/property/first <http://dbpedia.org/property/first>> "David") ; <http://dbpedia.org/property/first <http://dbpedia.org/property/first>> ?o* *}* These are all commands that I'm using. Em qua, 18 de jul de 2018 às 13:13, Rob Vesse <rve...@dotnetrdf.org> escreveu: > There is nothing obviously wrong with your configuration. You still > haven’t shown the code that you are using with this configuration to make > your query. > > > > My guess would be that perhaps your code is loading in the base dataset > without the indexing support i.e. you may be querying the base dataset > rather than the text dataset, but without having seen your code that’s only > a guess. > > > > Rob > > > > *From: *Alysson Gomes <alyssonas...@gmail.com> > *Reply-To: *<users@jena.apache.org> > *Date: *Wednesday, 18 July 2018 at 14:55 > *To: *<users@jena.apache.org> > *Subject: *Re: Question about indexing in text search > > > > Hi Rob! > > I attached the file with the code of the text index (file *index.ttl*) > but to facility it, follow the image: > > > > [image: Screenshot from 2018-07-18 10-34-38.png] > > I'm using the same queries of the previous mail. Case has something wrong, > please indicate it some solution. > > > > Em qua, 18 de jul de 2018 às 10:12, Rob Vesse <rve...@dotnetrdf.org> > escreveu: > > This is a misunderstanding, not a bug. Property functions use the SPARQL > collection syntax i.e. ( <http://dbpedia.org/property/first> “David”) to > pass arguments to the function which is given as the predicate, in this > case text:query. The rdf:first/rdf:rest you see in the logs is simply the > expansion of that into triple patterns which later gets extracted out into > the actual property function call. The fact that those happen to be > similar to the property you’re are trying to search on is purely > coincidental. > > > > If your query is not working as expected then the actual problem is > elsewhere, likely in the configuration of your text index. So you would > need to share that configuration and show how you actually execute your > query if you want further help with this. > > > > Regards, > > > Rob > > > > *From: *Alysson Gomes <alyssonas...@gmail.com> > *Reply-To: *<users@jena.apache.org> > *Date: *Wednesday, 18 July 2018 at 13:42 > *To: *"users@jena.apache.org" <users@jena.apache.org> > *Subject: *Question about indexing in text search > > Hello, my name is Alysson, I am a master's student in the Pontifical > Catholic University of Rio de Janeiro and am having problems with the > indexing in text search. > > In the* attach 1* contains the assembler that I'm using for to index the > triples that contain the predicate *<http://dbpedia.org/property/first > <http://dbpedia.org/property/first>>.* > > My goal is to reproduce the query *[1]* using an index, but the problem > is that when I execute the query *[2]* the URI used by the query > processor is different of the URI that I am using in the predicate, as > show image below: > > > *Error! Filename not specified.* > > As show in the image above, the query processor uses the URI *<* > http://www.w3.org/1999/02/22-rdf-syntax-ns> generating a result > incorrect. > > I want to know if it is possible to change this or if I am doing some > wrong. > > Since I thank you for the help. > > > > > > *[1]: Query* > > *SELECT ?s ?o* > > *WHERE {* > > *?s <http://dbpedia.org/property/first > <http://dbpedia.org/property/first>> ?o* > > *filter regex(?o, "David", "i")* > > *}* > > > > *[2]: Query* > > *PREFIX text: <http://jena.apache.org/text# <http://jena.apache.org/text>>* > > *SELECT ?s ?o* > > *WHERE {* > > *?s text:query( <http://dbpedia.org/property/first > <http://dbpedia.org/property/first>> "David") ;* > > *<http://dbpedia.org/property/first <http://dbpedia.org/property/first>> > ?o* > > *}* > >
