NLP常用开源免费工具
取自 自然语言处理百科
各种工具包的有效利用可以使研究者事半功倍。以下是NLP版版友们提供整理的NLP研究工具包。同时欢迎大家提供更多更好用的工具包，造福国内的NLP研究。
[编辑] NLP 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
- OpenNLP http://opennlp.sourceforge.net/
[编辑] English Stemmer
- Snowball http://snowball.tartarus.org/
[编辑] English POS Tagger
- Stanford POS Tagger http://nlp.stanford.edu/software/tagger.shtml
- TreeTagger http://www.ims.uni-stuttgart.de/projekte/corplex/TreeTagger/
- TnT http://www.coli.uni-saarland.de/~thorsten/tnt/
[编辑] English&Chinese Parser
- Stanford Parser http://nlp.stanford.edu/software/lex-parser.shtml
- Berkeley Parser http://nlp.cs.berkeley.edu/Main.html#Parsing
[编辑] English Keyphrase Extractor
[编辑] English Name Entity Recognizer
- Stanford NER http://nlp.stanford.edu/software/CRF-NER.shtml
[编辑] 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
[编辑] Topic Modeling Tools
- Matlab http://psiexp.ss.uci.edu/research/programs_data/toolbox.htm
- GibbsLDA++ http://gibbslda.sourceforge.net/
- GLDA http://code.google.com/p/glda/
[编辑] Conditional Random Fields
- FlexCRFs http://flexcrfs.sourceforge.net/ 含有MPI并行版本。
- CRF++ http://crfpp.sourFceforge.net/
- CRF Package http://crf.sourceforge.net/
- CRF Matlab http://www.cs.ubc.ca/~murphyk/Software/CRFall.zip
- CRFSuit http://www.chokkan.org/software/crfsuite/
- SGD with CRF http://leon.bottou.org/projects/sgd
- HCRF http://sourceforge.net/projects/hcrf/
[编辑] Support Vector Machine
- LIBSVM http://www.csie.ntu.edu.tw/~cjlin/libsvm/
- LIBLINEAR http://www.csie.ntu.edu.tw/~cjlin/liblinear/
- Pegasos http://www.cs.huji.ac.il/~shais/code/index.html
[编辑] Search Engines
- Lucene http://lucene.apache.org/
- 中科院FirteX http://www.firtex.org/
[编辑] Machine Learning and Data Mining Toolbox
转自：水木社区自然语言处理版 http://www.newsmth.net/
