问题
Is any place I can download Treebank of English phrases for free or less than $100? I need training data containing bunch of syntactic parsed sentences (>1000) in English in any format. Basically all I need is just words in this sentences being recognized by part of speech.
回答1:
NLTK (for Python) offers several treebanks for free.
回答2:
Here are a couple (English) treebanks available for free:
American National Corpus: MASC
Questions: QuestionBank and Stanford's corrections
British news: BNC
TED talks: NAIST-NTT TED Treebank
Georgetown University Multilayer Corpus: GUM
Biomedical:
NaCTeM GENIA treebank
Brown GENIA treebank
CRAFT corpus
See also Wikipedia for a huge list.
回答3:
what about Penn Treebank? I hope it will be free or atleast afordable. http://www.cis.upenn.edu/~treebank/cdrom2.html
来源：https://stackoverflow.com/questions/8949517/is-there-any-treebank-for-free