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Revision as of 09:27, 13 June 2012 by Jwulf (talk | contribs) (Detailed Description)



The feature covers the integration for ibus-pinyin of a new libpinyin backend to provide intelligent sentence-based Chinese pinyin input.


  • Name: Peng Wu
  • Email:

Current status

  • Targeted release: Fedora 17
  • Last updated: 2012-02-16
  • Percentage of completion: 100%

Detailed Description

User requirements:

  • More Intelligent Pinyin Input Method
    • Intelligent Pinyin Input Methods can provide predictive sentence completion based on two or three characters of user input.

Benefit to Fedora

  • This will make the Fedora pinyin input method more convenient and intelligent to use, also speed up the user input when using pinyin.
  • Currently ibus-pinyin needs more user interactions to input a sentence.


  • Make ibus-pinyin more easier and intelligent to input Chinese sentences.
  • Use libpinyin as a back end of ibus-pinyin. (done)
  • libpinyin large web corpus training. (done)
  • rewrite full pinyin/double pinyin/chewing parsers. (done)
  • In Fedora 17 the remained tasks are:
    • Improves the libpinyin self-learning code; (in progress)

How To Test

  • Check whether "Intelligent Pinyin" is listed in ibus-setup dialog and default ime list.
  • Try to add "Intelligent Pinyin" to ime list, begin to use the new pinyin ime.
  • Get some testing sentences, try to input it under both "Pinyin" and "Intelligent Pinyin", to see whether the "Intelligent Pinyin" can reduce the number of keyboard press.

User Experience

  • With the libpinyin back end, Chinese users can speed up the pinyin input speed by pressing less keys.


  • Need to modify ibus-pinyin code to integrate ibus-pinyin with libpinyin, and upstream accept the patch.

Contingency Plan

libpinyin is already in testing currently in F16 updates-testing but in worst case we could revert to current ibus-pinyin without libpinyin.


Release Notes

ibus-pinyin with new libpinyin backend provides a more intelligent pinyin input method and speeds up the user input of Chinese characters.

Comments and Discussion