摘要：
一些常见的NLP任务的开源/免费工具，*Computational Linguistics ToolboxCLT http://complingone.georgetown.edu/~linguist/compling.htmlGATE http://gate.ac.uk/Natural Language Toolkit(NLTK) http://nltk.orgMALLET http://mallet.cs.umass.edu/index.php/Main_Page*English StemmerSnowball http://snowball.tartarus.org/*English P 阅读全文