The rare words, given the example terms below are “primary”, “milk”, and “baby”. The lookup allows for a certain number of “misses”. The “baby to” hits on “baby” as the rare word. “baby to” compared to “baby tooth” is 1 “miss” and qualifies as a match. (in practice, if I recall correctly, “to” is actually discarded entirely, so the comparison is actually “baby” : “baby tooth”).
Others can correct my napkin logic though. This is a pretty common scenario when a single term ends up matching to a larger term because of the allowance of misses. For example: “oxygen” > “oxygen therapy” “pathology” > “pathology department” , “pathology procedure” “exercise” > “exercise pain management” Those are just some quick examples. It depends heavily on what the ontology contains though. Cheers, Britt Britt Fitch Wired Informatics 265 Franklin St Ste 1702 Boston, MA 02110 http://wiredinformatics.com britt.fi...@wiredinformatics.com > On Nov 12, 2015, at 6:27 PM, Tomasz Oliwa <ol...@uchicago.edu> wrote: > > Hi, > > cTAKES has a dictionary lookup behavior that I cannot explain, you can verify > the queries via the cTAKES demo that has been posted here at: > http://52.27.22.206:8080/index.jsp but it also happens with the current 3.2.2 > version and the fast dictionary UMLS lookup > > SENTENCE: Took the baby to the hospital. > VB DT NN IN DT NN > |===| |======| > Event Anatomy > C1305907 > > It finds the "baby tooth" annotation. The only CUI texts in the default fast > dictionary for C1305907 are > > C1305907|primary tooth > C1305907|milk tooth > C1305907|baby tooth > > How can "baby to" trigger the "baby tooth" annotation? > > Regards, > Tomasz
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