CipSeg: A Chinese Word Segementer

What is CipSeg

CipSeg provides a sophisticated Chinese word segmenter for simplified Chinese . After several years of active development and testing under productive environment, the segmenter proves to be robust and highly effective with the state of the art accuracy. Its performance is comparable or superior to other Chinese word segmenter.


Binary version of CipSeg is provided freely for research purpose only. Please contact for information on commercial use.


cipseg is no longer available for download, sorry. Please contact if you want a license.
Install: run the following command as root:

tar zxf cipseg-platform.tar.gz -C /usr/local


Please see README file in the package for information.


CipSeg is developed by Natural Language Processing Lab ( This unix port is maintained by Zhang Le. Feedback and suggestion are always welcome.