OpenNLp training data for organisation

Question

I am trainng my data for opennlp organisation entity finder from command line but it's showing a null pointer exception

I have used:

opennlp TokenNameFinderTrainer -model en-ner-person.bin -lang en -data >en-ner->person.train -encoding UTF-8

Answer 1

I think your problem is that you use training data for "Person" type.

So firstly, you should create training data for type "Organization":

$ bin/opennlp TokenNameFinderConverter conll03 -data eng.train -lang en -types org > corpus_train_org.txt

Then train your model:

$ bin/opennlp TokenNameFinderTrainer -lang en -encoding utf8 -iterations 500 -data corpus_train_org.txt -model en_ner_organization.bin