Hi,
I will re-use this thread to report a similar SPARQL query construction
issue with "disambiguation-mlt" engine.
The engine fails in an attempt to process the following sentence: "The
House Benghazi committee took its best swings at Hillary Clinton."
Virtuoso throws an invalid syntax exception [1].
However, sentence "Committee took its best swings at Hillary Clinton."
works just fine.
Regards,
Gin
[1]
Virtuoso 37000 Error SP030: SPARQL compiler, line 6: syntax error at
'.' before '?id'
SPARQL query:
define sql:big-data-const 0
#output-format:application/sparql-results+json
SELECT DISTINCT ?id
WHERE {
{
.
?id <http://www.w3.org/2000/01/rdf-schema#label> ?tmp1 .
?tmp1 bif:contains '("hillary" AND "clinton")' .
FILTER(((lang(?tmp1) = "en") || (lang(?tmp1) = ""))) .
}
}
ORDER BY DESC ( <LONG::IRI_RANK> (?id) )
LIMIT 25
Best Wishes,
Gintautas Sulskus
On Mon, Oct 12, 2015 at 1:18 PM, Gintautas Sulskus <
gintautas.suls...@gmail.com> wrote:
> Hi Rupert,
>
> thanks.
>
> Cheers,
> Gin
>
> Best Wishes,
> Gintautas Sulskus
>
> On Mon, Oct 12, 2015 at 7:50 AM, Rupert Westenthaler <
> rupert.westentha...@gmail.com> wrote:
>
>> Hi Gin,
>>
>> Thanks for reporting. This looks like a bug in the generation of the
>> SPARQL queries by the SparqlQueryUtils.java [1] class.
>>
>> A search for existing JIRA issues related to this revealed STANBOL-877
>> [2] that already provided a patch that seamed the have never been
>> applied to the code base. I try to have a look into this but I might
>> not find time this week.
>>
>> best
>> Rupert
>>
>> [1]
>> http://svn.apache.org/repos/asf/stanbol/trunk/entityhub/query/sparql/src/main/java/org/apache/stanbol/entityhub/query/sparql/SparqlQueryUtils.java
>> [2] https://issues.apache.org/jira/browse/STANBOL-877
>>
>> On Fri, Oct 9, 2015 at 1:39 AM, Gintautas Sulskus
>> <gintautas.suls...@gmail.com> wrote:
>> > Hello,
>> >
>> > I have noticed that keywordLinking engine does not work with words in
>> > quotes.
>> > For the given text:
>> >
>> >> I suspect that the keyword linking engine does not work with "quotes".
>> >
>> >
>> > I get the following exception: [1].
>> > [2] Shows the SPARQL Query and Virtuoso error message
>> >
>> > It seems that the problem is in the SPARQL query line:
>> >
>> >> ?v_1 bif:contains '*"*\"quotes"' .
>> >
>> >
>> > Stanbol sends the query to Virtuoso with both UNescaped (that should
>> have
>> > been removed) and escaped quote: "*%22*%5C%22quotes%22" - which
>> translates
>> > to *"*\"quotes". Removing the first quote -\"quotes" - solves the
>> problem.
>> >
>> > PS. Could you please explain me, what parameter is expected instead of
>> > "null" in ["quotes]@[en, null]? [1]
>> >
>> > Refs:
>> > [1] Exception
>> > org.apache.stanbol.enhancer.servicesapi.EngineException: Exception while
>> > searchign for ["quotes]@[en, null]in the ReferencedSite virt
>> > at
>> >
>> org.apache.stanbol.enhancer.engines.keywordextraction.impl.EntityLinker.lookupEntities(EntityLinker.java:298)
>> > at
>> >
>> org.apache.stanbol.enhancer.engines.keywordextraction.impl.EntityLinker.process(EntityLinker.java:124)
>> > at
>> >
>> org.apache.stanbol.enhancer.engines.keywordextraction.engine.KeywordLinkingEngine.computeEnhancements(KeywordLinkingEngine.java:392)
>> > at
>> >
>> org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler.processEvent(EnhancementJobHandler.java:279)
>> > at
>> >
>> org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler.handleEvent(EnhancementJobHandler.java:197)
>> > at
>> >
>> org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:415)
>> > at
>> >
>> org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks.execute(SyncDeliverTasks.java:118)
>> > at
>> >
>> org.apache.felix.eventadmin.impl.tasks.AsyncDeliverTasks$TaskExecuter.run(AsyncDeliverTasks.java:159)
>> >
>> >
>> > [2] SPARQL Query and Virtuoso error message
>> >
>> > Virtuoso 37000 Error XM029: Free-text expression, line 0: Unterminated
>> > double-quoted word or phrase at
>> >
>> >
>> > SPARQL query:
>> > define sql:big-data-const 0
>> > #output-format:application/rdf+xml
>> > CONSTRUCT {
>> > ?id <http://www.w3.org/2000/01/rdf-schema#label> ?v_1 .
>> > ?id <http://www.w3.org/2000/01/rdf-schema#seeAlso> ?v_2 .
>> > ?id <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ?v_3 .
>> > <http://stanbol.apache.org/ontology/entityhub/query#QueryResultSet> <
>> > http://stanbol.apache.org/ontology/entityhub/query#queryResult> ?id .
>> > } WHERE {
>> > {
>> > SELECT ?id
>> > WHERE {
>> > ?id <http://www.w3.org/2000/01/rdf-schema#label> ?v_1 .
>> > ?v_1 bif:contains '"\"quotes"' .
>> > FILTER(((lang(?v_1) = "en") || (lang(?v_1) = ""))) .
>> > }
>> > ORDER BY DESC ( <LONG::IRI_RANK> (?id) )
>> > LIMIT 10
>> > }
>> > OPTIONAL { ?id <http://www.w3.org/2000/01/rdf-schema#label> ?v_1 . }
>> > OPTIONAL { ?id <http://www.w3.org/2000/01/rdf-schema#seeAlso> ?v_2 .
>> }
>> > OPTIONAL { ?id <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
>> ?v_3 . }
>> > }
>> >
>> > Best Regards,
>> > Gin
>>
>>
>>
>> --
>> | Rupert Westenthaler rupert.westentha...@gmail.com
>> | Bodenlehenstraße 11 ++43-699-11108907
>> | A-5500 Bischofshofen
>> | REDLINK.CO
>> ..........................................................................
>> | http://redlink.co/
>>
>
>
