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From Peter Klügl (JIRA) <...@uima.apache.org>
Subject [jira] [Commented] (UIMA-4455) Ruta: conjunctive rule elements not order independent
Date Tue, 16 Jun 2015 15:31:00 GMT

    [ https://issues.apache.org/jira/browse/UIMA-4455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14588214#comment-14588214
] 

Peter Klügl commented on UIMA-4455:
-----------------------------------

Hmm... this is actually not a bug but a feature. 

Some explanation:

Conjunctive rule elements need to match on the same position, and all of them need to return
a successful match. In the examples, we have a common left-to-right matching. So, the first
rule element is the start anchor for the complete rule and also for the conjunctive elements.
In the first rule, we match on "all" DirectSpeech annotations and then directly on their feature
"SpokenTo" values. Thus, these annoations build up the acutal match on which the condition
is evaluated. These annotations are then also used for evaluating the other conjunctive rule
elements. The second rule element tries to match on a DirectSpeed annotation, but fails because
the SpokenTo annotation was somewhere else.

The second rule starts with a match on DirectSpeech annotations and then tries again to find
a DirectSpeech annotation on the same position in order to evaluate its feature value.

Not very intuitive, but actually quite helpful if one knows what to do.

> Ruta: conjunctive rule elements not order independent
> -----------------------------------------------------
>
>                 Key: UIMA-4455
>                 URL: https://issues.apache.org/jira/browse/UIMA-4455
>             Project: UIMA
>          Issue Type: Bug
>          Components: ruta
>    Affects Versions: 2.3.0ruta
>            Reporter: Peter Klügl
>             Fix For: 2.3.1ruta
>
>
> Example:
> This fails:
> {noformat}
> (DirectSpeech.SpokenTo{PARTOF(FamilyRelationIndicator)} & DirectSpeech{-> CREATE(Relation,
"Agens" = DirectSpeech.Speaker, "Agens2" = DirectSpeech.SpokenTo)});
> {noformat}
> but this works:
> {noformat}
> (DirectSpeech{-> CREATE(Relation, "Agens" = DirectSpeech.Speaker, "Agens2" = DirectSpeech.SpokenTo)}
& DirectSpeech.SpokenTo{PARTOF(FamilyRelationIndicator)});
> {noformat}



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