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/
