[jira] [Created] (CTAKES-21) DrugNER seems to be able to pick up the signatures for “20 mg Tamoxifen” but not “Tamoxifen 20mg".

["Pei Chen (JIRA)" <ji...@apache.org>]

Pei Chen created CTAKES-21:
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             Summary: DrugNER seems to be able to pick up the signatures for “20 mg Tamoxifen” but not “Tamoxifen 20mg". 
                 Key: CTAKES-21
                 URL: https://issues.apache.org/jira/browse/CTAKES-21
             Project: cTAKES
          Issue Type: Bug
          Components: ctakes-drug-ner
    Affects Versions: 2.6-incubating
            Reporter: Pei Chen
            Priority: Minor


Migration from SF Bug Tracker ID: 3560796 

DrugNER seems to be able to pick up the signatures for “20 mg Tamoxifen” but not “Tamoxifen 20mg". 

The problem is the code sees ‘Tamoxifen 20 mg’ and ‘Tamoxifen’ as two separate drugs, since there is a unique Rxnorm cui for each. So, in a sense it’s looking between mentions for attributes and not finding any. This problem would not be seen if there was another drug to follow or if strength did not map to a unique Rxnorm cui.
For instance, if you change the ’20 mg’ to ‘120 mg’ in your example above it would assign the attributes correctly.


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