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vnadgir / dkpro-core-asl

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Missing Stanford NERClassifierCombiner #506

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
The stanford classifier uses an NERClassifierCombiner.
This is absent from the Stanford Module.

This becomes problematic when using the coreference resolver.

What version of the product are you using? On what operating system?

DKPro 1.6.2 vs Stanford 3.4.1

Original issue reported on code.google.com by jkirschn...@gmail.com on 20 Oct 2014 at 5:04

GoogleCodeExporter commented 9 years ago 
As far as I understand, the combiner is comes into play when multiple NER 
models are used and has a resolver strategy which is used when entities overlap 
or conflict, keeping only one of them. 

DKPro Core also currently does not use SUTime.

Using the NERClassifierCombiner would certainly be a good idea.

We currently assume that one component has one model. However, the 
NERClassifierCombiner would need to be fed with multiple models. We need to 
find a good way of handling such a case. 

Optimally, the StanfordNamedEntityRecognizer integration in DKPro Core should 
behave in the very same way as the entity recognizer in a CoreNLP pipeline.

If you have any suggestions for us to improve the present situation, please 
shoot.

Original comment by richard.eckart on 20 Oct 2014 at 8:14