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brown.pos.model.gz
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Averaged Perceptron tagger and Unambiguous Tagger trained on the Brown corpus.

Generated by:

$ time ./dist/build/trainPOS/trainPOS full_brown brown.pos.model

where full_brown is the result of concatenating all the Brown corpus files in ~/nltk_data/corpora/brown:

$ cat ~/nltk_data/corpora/brown/c??? > full_brown

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conll2000.pos.model.gz
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Averaged Perceptron tagger and Unambiguous Tagger trained on the Conll
2000 training set.


Generated by:

$ time ./dist/build/trainPOS/trainPOS ~/nltk_data/corpora/conll2000/train.txt conll2000.pos.model

real	2m48.866s
user	2m44.500s
sys	0m1.898s

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conll2000.chunk.model.gz
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Averaged Perceptron Chunker trained on the Conll 2000 training set.

 $ time ./dist/build/trainChunker/trainChunker ~/nltk_data/corpora/conll2000/train.txt conll2000.chunk.model

real	0m20.730s
user	0m20.298s
sys	0m0.290s

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wikiner.ner.model.gz
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A Chunker that chunks to NER tags; trained on aij-wikiner-en-wp2 (see: http://schwa.org/projects/resources/wiki/Wikiner)