Jain, Jira has been open to track this: https://issues.apache.org/jira/browse/CTAKES-289
It seems like a possible bug to me, but I only had a quick glance at the code: http://svn.apache.org/repos/asf/ctakes/trunk/ctakes-drug-ner/src/main/java/org/apache/ctakes/drugner/fsm/machines/elements/DosagesFSM.java It does seem to reuse the FractionStrengthCondition, but perhaps others could comment it. --Pei > -----Original Message----- > From: Ajay Jain [mailto:goti...@hotmail.com] > Sent: Wednesday, March 19, 2014 3:48 PM > To: dev@ctakes.apache.org > Subject: cTAKES handling of fractions in dosage > > Hi, > I am running the DrugAggregatePlainTextUMLSProcessor and noticing that > cTAKES is not handling fractions for medication dosage correctly. For > example, "Benadryl 1/2 tsp 3 times daily" > produces a MedicationMention with a dosage of 2. Having tried different > fractions (1/2, 1/3, 2/4, etc.), apparently the dosage is always set to the > digit > on the right of the '/'. I am wondering if this is a documented issue with > cTAKES (I am using cTAKES version 3.1). Thanks in advance. > Jain
