uimafit JCasIterable update question

[Miller, Timothy]

So uimafit 2.0 has updated the JCasIterable constructor to only take
(CollectionReader|AnalysisEngine)Description objects and not
CollectionReaders or AnalysisEngines directly. In cleartk we have the
Evaluation_ImplBase class whose abstract methods (train,test) take a
CollectionReader. Now a typical thing in our experiments in cTAKES was
to build an aggregate pipeline in train/test and iterate over documents
using JCasIterable with the CollectionReader and the pipeline. So is
there a way to get from a CollectionReader object to its
CollectionReaderDescription object so I can adapt this code which uses a
JCasIterable? Or is there a new/different way to iterate through jcas
using the CollectionReader object? (The new
SimplePipeline.iteratePileline() method looks useful but also only takes
Description objects.)

Thanks

--
Tim Miller
Instructor
Boston Children's Hospital and Harvard Medical School
timothy...@childrens.harvard.edu
617-919-1223

[Steven Bethard]

It used to be that train and test needed to take a CollectionReader to
make things like cross validation work out right. I don't know if
that's still true. If not, we should consider switching it to a
CollectionReaderDescription.

In the meantime though, just use a JCasIterator instead of
JCasIterable. The former does take CollectionReader and AnalysisEngine
objects.

Steve

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