Have you seen: http://www-tsujii.is.s.u-tokyo.ac.jp/~tsuruoka/postagger/ http://www-tsujii.is.s.u-tokyo.ac.jp/~tsuruoka/postagger/ It's a POS tagger whose outp

Have you seen: http://www-tsujii.is.s.u-tokyo.ac.jp/~tsuruoka/postagger/ http://www-tsujii.is.s.u-tokyo.ac.jp/~tsuruoka/postagger/ It's a POS tagger whose output is extremely close (read: identical) to the Stanford POS tagger. It's also much faster. I was able to tag a corpus of 300K sentences with this in 15 minutes. With the Stanford POS tagger it took the entire weekend. Sadly, this tool's license does not allow commercial use and it is not released under the GPL license.