Thanks Michael. I like the idea of attaching the POS to dictionary terms. What POS tagger are you using then? Is it the Stanford or LingPipe? I doubt that UIMA has a native POS-tagger.Ahmed
On Wed, Jul 16, 2008 at 1:24 PM, Michael Tanenblatt <[EMAIL PROTECTED]> wrote: > ConceptMapper maps entries in the dictionary to new annotations using the > AE descriptor parameters "AttributeList" and "FeatureList". From the > comments in the descriptor: > > AttributeList: List of attribute names for XML dictionary entry record - > must correspond to FeatureList > > FeatureList: List of feature names for CAS annotation - must correspond to > AttributeList > > In other words, these are two parallel arrays mapping from the attributes > in the dictionary entries to the new annotation features. So, if your > dictionary entries had attributes named "POS_Tag", e.g.: > > <token canonical="abdomen, nos" POS_Tag ="NN" > > <variant base="abdomen, nos" /> > <variant base="abdomen" /> > </token> > > and the resultant annotations had the feature "PartOfSpeechTag", the > parameter "AttributeList" (an array) would have "POS_Tag" at the same > position (array index) as the parameter "FeatureList" would have > "PartOfSpeechTag". > > One key pice of information: ConceptMapper does not do any POS tagging, it > only maps from the dictionary. In some cases, I have run a > tokenizer/POS-tagger, then use this technique to unconditionally override > the computed POS tag in the token using the TokenClassWriteBackFeatureNames > parameter. This allows any attributes from the dictionary to be stuffed back > into all of the matching tokens, which can sometimes be useful... > > TokenClassWriteBackFeatureNames: names of features that should be written > back to a token, such as a POS tag > > > > > > On Jul 16, 2008, at 1:07 PM, Ahmed Abdeen Hamed wrote: > > Hello,TokenAnnotation objects don't get fully populated with data after >> annotation. For instance, POS feature returns null when printing out an >> annotation object. Apparently, this feature needs to be set while doing >> the >> annotation. How does ConceptMapper do the POS tagging? I appreciate any >> insights! >> Best wishes, >> Ahmed >> > >
