Chinese pinyin phrasal input on mobile phone: usability and developing trends

Authors:
Ying Liu;Qiqun Wang
Affiliations:
Nokia Research Center, Beijing, China;Zhejiang University, Hangzhou, P. R. China
Venue:
Mobility '07 Proceedings of the 4th international conference on mobile technology, applications, and systems and the 1st international symposium on Computer human interaction in mobile technology
Year:
2007

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Abstract

Phrasal input is a Chinese text entry feature and just available on mobile phone lately. In the study, we compared usability of five Chinese pinyin phrasal input methods (Cstar, Guobi, Nokia, T9 and Zi) on mobile phones that represent two types: methods derived from PC pinyin phrasal input and methods derived from pinyin character input on mobile phones. The result showed that Cstar and Nokia performed the best followed by Guobi, T9, and Zi in order. We discussed the reasons behind and provided four design guidelines: 1) Find a balance between radical designs and well-accepted designs; 2) Optimize the corpus constantly; 3) Provide easy-to-use on-line phrase creation; and 4) Design a phrasal input method excluding pinyin selection process as PC pinyin phrasal input methods do.