Martin Toepfer created UIMA-3661:
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             Summary: Ruta: specification for "Filter & Retain"
                 Key: UIMA-3661
                 URL: https://issues.apache.org/jira/browse/UIMA-3661
             Project: UIMA
          Issue Type: Wish
          Components: ruta
    Affects Versions: 2.1.0ruta
            Reporter: Martin Toepfer


It would be nice if we had a specification for inference with filtered and 
retained types, as well as some options for handling filtered/retained types 
(covered text vs. annotations).

For instance, I am trying to merge SegmentElement annotations into Segment 
annotations (Segment is roughly SegmentElement+). I am not interested in 
parenthesis or colons, so I add them to the filtered types. However, I have 
SegmentElements that contain parenthesis, thus, I add SegmentElements to 
retained types. Nevertheless, not all SegmentElements are used, because some 
SegmentElements end with closing parenthesis, e.g., "XY (KQ)", which is a valid 
element in my case.

At the moment, I cannot use filter/retain for this problem. Changes may affect 
many parts of the inference, however, I think that it would be a very nice 
feature for UIMA Ruta 3.0.



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