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From Yu Liang <liangyu....@gmail.com>
Subject cTakes polarity problem
Date Wed, 31 Dec 2014 14:55:28 GMT
I have a quick question about CTAKES.
I am using AE “AggregatePlaintextUMLSProcessor.xml” and want to get some negation results
by referring to polarity attribute.
However, it turns out, for example “Negative for hepatitis”, is not negated. I think it
is weird and I tried “No hepatitis”, “ Denies hepatitis” which return “polarity=
-1”, but “Deny hepatitis.” returns “polarity=1”.

any one could give me some clue that what is wrong? Thank you!
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