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brown.pos.model.gz
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Averaged Perceptron tagger and Unambiguous Tagger trained on most of
the Brown corpus; the following files were held out for testing:

  ca01 ca03 cb02 cc01 cc03 cd02 ce01 ce03 cf02 cg01 cg03 ch02 cj01 cj03
  ck02 cl01 cl03 cm02 cn01 cn03 cp02 cr01 cr03 ca02 cb01 cb03 cc02 cd01
  cd03 ce02 cf01 cf03 cg02 ch01 ch03 cj02 ck01 ck03 cl02 cm01 cm03 cn02
  cp01 cp03 cr02

The remainder of the Brown corpus was used to train this model.


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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