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https://issues.apache.org/jira/browse/STANBOL-1362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rafa Haro updated STANBOL-1362:
-------------------------------
    Fix Version/s:     (was: 0.12.1)

> FST linking engine should use the matchable span to calculate dominant tag 
> ---------------------------------------------------------------------------
>
>                 Key: STANBOL-1362
>                 URL: https://issues.apache.org/jira/browse/STANBOL-1362
>             Project: Stanbol
>          Issue Type: Improvement
>          Components: Enhancement Engines
>    Affects Versions: 0.12.0
>            Reporter: Rupert Westenthaler
>            Assignee: Rupert Westenthaler
>            Priority: Minor
>             Fix For: 1.1.0
>
>
> The FST linking engine uses the TagClusterReducer#LONGEST_DOMINANT_RIGHT to 
> select the dominant Tag in an overlapping cluster of Tag suggestions.
> While this algorithm is fine the span used as input are not ideal as also 
> none-matchable tokens are considered. Especially when linking against DBPedia 
> this sometimes results in unexpected results as several entities in DBPedia 
> do have labels that include things like pre-/post-positions. Because of that 
> a text mentioning "in <location>" could get linked to an entity with this 
> name (could be a book or music-album) but not suggesting the <location>. This 
> is because the matching span for "in <location>" is the 
> LONGEST_DOMINANT_RIGHT and the match for the <location> will be removed. 
> To fix this issue one needs to implement a LONGEST_DOMINANT_RIGHT variant 
> that only considers the span of enclosed matchable tokens instead of the 
> whole matching span. Doing so will only use <location> as matchable span and 
> therefore suggest both the <location> and the other entity matching "in 
> <location>".



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