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
