fuseki:dataset <#database> .
should be:
fuseki:dataset :text_dataset ;
Andy
On 10/08/18 13:53, Alysson Gomes wrote:
Hi Andy!
Follow in attached the configuration file.
Em sex, 10 de ago de 2018 às 09:35, Andy Seaborne <a...@apache.org
<mailto:a...@apache.org>> escreveu:
Alysson,
It needs to be a fuseki configuration file for -conf, not just use the
daatset .
http://jena.apache.org/documentation/query/text-query.html#working-with-fuseki
<#service_text> rdf:type fuseki:Service ;
....
fuseki:dataset :text_dataset ;
### This is the assembler for the text dataset ...
:text_dataset rdf:type text:TextDataset;
text:index ....
text:dataset ...
If you had that in index.ttl, please post the file so we can see
what it
says.
Andy
On 08/08/18 18:19, Alysson Gomes wrote:
> Rob, I tried to load the configuration file (the index.ttl) in
the Fuseki
> with the following command:
>
> ./fuseki-server --conf
>
/home/alysson/Documents/PUC-Rio/TestJena/tdb-citation-data-en-fuseki-index/index.ttl
>
> but when tried run the query [1] appeared this in the logs:
>
> TextQueryPF WARN Failed to find the text index: tried context
and as a
> text-enabled dataset
> TextQueryPF WARN No text index - no text search performed
>
> I searched in google, but not appeared nothing useful. Do you
have some
> suggestion?
>
> [1] Query
> PREFIX text: <http://jena.apache.org/text#>
> SELECT ?s ?o
> WHERE {
> ?s text:query( <http://dbpedia.org/property/first> "David") ;
> <http://dbpedia.org/property/first> ?o
> }
>
>
> Em ter, 7 de ago de 2018 às 05:46, Rob Vesse
<rve...@dotnetrdf.org <mailto:rve...@dotnetrdf.org>>
> escreveu:
>
>> Alysson
>>
>> It was briefly discussed on the dev list. The conclusion is
that what you
>> are trying to do isn't supported as a pure command line task
currently.
>> You will need to write code or use the Fuseki web server to
achieve what
>> you want
>>
>> Rob that
>>
>> On 06/08/2018, 18:15, "Alysson Gomes" <alyssonas...@gmail.com
<mailto:alyssonas...@gmail.com>> wrote:
>>
>> Hi Rob!
>> Still about this problem of indexing, do you have some
suggestion?
>>
>> Em qui, 19 de jul de 2018 às 13:59, Alysson Gomes <
>> alyssonas...@gmail.com <mailto:alyssonas...@gmail.com>>
>> escreveu:
>>
>> > I did, but as you told the sparql launched an exception:
>> > org.apache.jena.sparql.ARQException: Found two matches:
var ?root ->
>> > http://localhost/jena_example/#text_dataset,
>> >
>>
file:///home/alysson/Documents/PUC-Rio/TestJena/tdb-citation-data-en-fuseki-index/index.ttl#dataset
>> >
>> >
>> > Em qui, 19 de jul de 2018 às 13:13, Rob Vesse
<rve...@dotnetrdf.org <mailto:rve...@dotnetrdf.org>>
>> > escreveu:
>> >
>> >> No I can't, the documentation is doing the right thing.
A text
>> dataset is
>> >> fundamentally a wrapper around another dataset so any
text indexing
>> config
>> >> will always require at least two datasets in the
configuration file.
>> >>
>> >> Did you try using the sparql tool instead as I suggested?
>> >>
>> >> Rob
>> >>
>> >> On 19/07/2018, 15:25, "Alysson Gomes"
<alyssonas...@gmail.com <mailto:alyssonas...@gmail.com>>
>> wrote:
>> >>
>> >> Are do you can send an example of a configuration
file with
>> only one
>> >> dataset that contains the index? Because I'm based
me in the
>> examples
>> >> of
>> >> the documentation (is must similar to the
configuration that I'm
>> >> using).
>> >>
>> >> Em qui, 19 de jul de 2018 às 10:04, Rob Vesse <
>> rve...@dotnetrdf.org <mailto:rve...@dotnetrdf.org>>
>> >> escreveu:
>> >>
>> >> > Thanks, so your problem was as I suspected
>> >> >
>> >> > You use tdbquery which does not understand text
indexes using
>> it as
>> >> you
>> >> > do. By using --loc you are only querying your
base dataset,
>> this
>> >> does not
>> >> > include your text index so you don't get any results.
>> >> >
>> >> > I would try using the base sparql tool instead
passing in your
>> >> > configuration file i.e.
>> >> >
>> >> > sparql --desc=index.ttl --query=queries.rq
>> >> >
>> >> > I am not 100% sure this will work because there
are two
>> datasets
>> >> defined
>> >> > in your config file (the base dataset and the text
indexed
>> dataset)
>> >> and I
>> >> > am not sure which one the sparql tool will pick by
default
>> >> >
>> >> > Rob
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > On 19/07/2018, 13:47, "Alysson Gomes" <
>> alyssonas...@gmail.com <mailto:alyssonas...@gmail.com>>
>> >> wrote:
>> >> >
>> >> > I'm using the file bin of the Jena:
>> >> > *tdbquery
>> >> >
>> >>
--loc=/home/alysson/Documents/PUC-Rio/TestJena/tdb-citation-data-en
>> >> > --query=queries.rq*
>> >> >
>> >> > file *queries.rq*:
>> >> > *prefix text: <http://jena.apache.org/text#
>> >> > <http://jena.apache.org/text#>>select ?s
?owhere{ ?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}*
>> >> >
>> >> > Em qui, 19 de jul de 2018 às 05:56, Rob Vesse <
>> >> rve...@dotnetrdf.org <mailto:rve...@dotnetrdf.org>>
>> >> > escreveu:
>> >> >
>> >> > > You still didn’t state how you execute the
query, you
>> included
>> >> > commands
>> >> > > for creating the database and index but not the
>> command/code
>> >> that
>> >> > actually
>> >> > > makes the query
>> >> > >
>> >> > >
>> >> > >
>> >> > > Please show exactly how you are submitting
your query
>> >> > >
>> >> > >
>> >> > >
>> >> > > Rob
>> >> > >
>> >> > >
>> >> > >
>> >> > > From: Alysson Gomes <alyssonas...@gmail.com
<mailto:alyssonas...@gmail.com>>
>> >> > > Reply-To: <users@jena.apache.org
<mailto:users@jena.apache.org>>
>> >> > > Date: Wednesday, 18 July 2018 at 20:15
>> >> > > To: <users@jena.apache.org
<mailto:users@jena.apache.org>>
>> >> > > Subject: Re: Question about indexing in text
search
>> >> > >
>> >> > >
>> >> > >
>> >> > > 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:
>> >> > >
>> >> > >
>> >> > >
>> >> > > After the creation of the index, I execute
the query:
>> >> > >
>> >> > >
>> >> > >
>> >> > > prefix text: <http://jena.apache.org/text#>
>> >> > >
>> >> > > select ?s ?o
>> >> > >
>> >> > > where{
>> >> > >
>> >> > > ?s text:query(
<http://dbpedia.org/property/first>
>> >> "David") ;
>> >> > >
>> >> > > <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 <mailto: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
<mailto:alyssonas...@gmail.com>>
>> >> > > Reply-To: <users@jena.apache.org
<mailto:users@jena.apache.org>>
>> >> > > Date: Wednesday, 18 July 2018 at 14:55
>> >> > > To: <users@jena.apache.org
<mailto: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:
>> >> > >
>> >> > >
>> >> > >
>> >> > > Error! Filename not specified.
>> >> > >
>> >> > > 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 <mailto: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
<mailto:alyssonas...@gmail.com>>
>> >> > > Reply-To: <users@jena.apache.org
<mailto:users@jena.apache.org>>
>> >> > > Date: Wednesday, 18 July 2018 at 13:42
>> >> > > To: "users@jena.apache.org
<mailto:users@jena.apache.org>" <users@jena.apache.org
<mailto: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>.
>> >> > >
>> >> > > 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> ?o
>> >> > >
>> >> > > filter regex(?o, "David", "i")
>> >> > >
>> >> > > }
>> >> > >
>> >> > >
>> >> > >
>> >> > > [2]: Query
>> >> > >
>> >> > > PREFIX text: <http://jena.apache.org/text#>
>> >> > >
>> >> > > SELECT ?s ?o
>> >> > >
>> >> > > WHERE {
>> >> > >
>> >> > > ?s text:query(
<http://dbpedia.org/property/first>
>> "David") ;
>> >> > >
>> >> > > <http://dbpedia.org/property/first> ?o
>> >> > >
>> >> > > }
>> >> > >
>> >> > >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>>
>>
>>
>>
>>
>>
>
