> Adding triggers requires modifying a text file - much simpler than changing > code and compiling.
+1 Thanks Vijay! -----Original Message----- From: vijay garla [mailto:vnga...@gmail.com] Sent: Monday, January 05, 2015 3:13 PM To: dev@ctakes.apache.org Subject: Re: Negex I think the original ctakes negation AE is in the spirit of Negex, but it is not Negex. AFAICT the ctakes negation AE * requires that triggers are single tokens * does not support conjuctions (e.g. however, nevertheless) or post-negation triggers (e.g. free, was ruled out) * is based on a FSM, which is different from the way Negex rules work * requires modifying and recompiling code to add negation triggers We ported the Negex algorithm 1-1 to UIMA to address these issues. See the ctakes-ytex-uima\desc\analysis_engine\NegexAnnotator.xml and the corresponding trigger file (ctakes-ytex-res\src\main\resources\org\apache\ctakes\ytex\negex\negex_triggers.txt) Adding triggers requires modifying a text file - much simpler than changing code and compiling. -vj On Mon, Jan 5, 2015 at 8:30 PM, Finan, Sean < sean.fi...@childrens.harvard.edu> wrote: > I don't know. I'm comparing what I think is the 2009 negex trigger > set > https://code.google.com/p/negex/source/browse/trunk/GeneralNegEx.Java. > v.1.2.05092009/negex_triggers.txt > > with the cTakes trigger set in > org.apache.ctakes.core.fsm.machine.NegationFSM.java and it looks like > the cTakes set is missing some 2009 negex trigger words, such as "exhibit". > > Anyway, you can read > https://cwiki.apache.org/confluence/display/CTAKES/cTAKES+3.0+-+NE+Con > texts for info on adding triggers to the cTakes version. > > Sean > > -----Original Message----- > From: John Green [mailto:john.travis.gr...@gmail.com] > Sent: Monday, January 05, 2015 2:03 PM > To: dev@ctakes.apache.org > Cc: dev@ctakes.apache.org > Subject: Re: Negex > > Thanks Ma'am for the input! > > > So to clarify: ctakes added additional trigger words to the list > published originally? (This is an unrelated question to the negex vs > ml thread last month). > > > > > Best, > > John > — > Sent from Mailbox > > On Mon, Jan 5, 2015 at 12:58 PM, Green, John <john.gr...@usuhs.edu> wrote: > > > Hi all - Does anyone know off the top of their head if the negex > > trigger rules included in the original 2009 python script were added > > to when it was implemented in ctakes? > > Thanks, > > John >
