[Haskell-cafe] NLP libraries and tools?

[Dmitri O.Kondratiev]

Hi,
Please advise on NLP libraries similar to Natural Language Toolkit (
www.nltk.org)
First of all I need:
- tools to construct 'bag of words' (
http://en.wikipedia.org/wiki/Bag_of_words_model), which is a list of words
in the
article.
- tools to prune common words, such as prepositions and conjunctions, as
well as extremely rare words, such as the ones with typos.
- stemming tools
- Naive Bayes classifier
- SVM classifier
-  k-means clustering

Thanks!
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