NLP常用開源/免費(fèi)工具（轉(zhuǎn)載于水木NLP版）*Computational Linguistics Toolbox CLT http://complingone.georgetown.edu/~linguist/compling.html GATE http://gate.ac.uk/ Natural Language Toolkit(NLTK) http://nltk.org MALLET http://mallet.cs.umass.edu/index.php/Main_Page*English Stemmer Snowball http://snowball.tartarus.org/*English POS Tagger Stanford POS Tagger http://nlp.stanford.edu/software/tagger.shtml TreeTagger http://www.ims.uni-stuttgart.de/projekte/corplex/TreeTagger/*English Parser Stanford Parser http://nlp.stanford.edu/software/lex-parser.shtml Berkeley Parser http://nlp.cs.berkeley.edu/Main.html#Parsing*English Keyphrase Extractor KEA http://www.nzdl.org/Kea/index_old.html*English Name Entity Recognizer Stanford NER http://nlp.stanford.edu/software/CRF-NER.shtml*Chinese Word Segmentator 中科院ICTCLAS http://www.nlp.org.cn/project/project.php?proj_id=6 Stanford Word Segmenter http://nlp.stanford.edu/software/segmenter.shtml*Topic Modeling Tools Matlab http://psiexp.ss.uci.edu/research/programs_data/toolbox.htm*Machine Learning Methods CRF++ http://crfpp.sourceforge.net/ LIBSVM http://www.csie.ntu.edu.tw/~cjlin/libsvm/*Search Engines Lucene http://lucene.apache.org/ 中科院FirteX http://www.firtex.org/*Data Mining Toolbox Weka http://www.cs.waikato.ac.nz/ml/weka/
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