藏文的信息熵与输入法键盘设计

Tibetan Information Entropy and Input Keyboard Design

在研究和分析藏文拼写文法的基础上,对计算机藏文快速输入法键盘键位布局进行形式化描述,推导计算机藏文键盘键位布局规则及方法。综合考虑藏文字符的字频统计结果、计算机藏文键盘键位布局规则、德沃拉克键盘键位击键方便指数以及为了便于记忆加以考虑的藏文字母与英文字母发音上的近似性,设计一种能够实现藏文无重码快速输入的键盘键位布局。最后,计算输入一个藏文字的平均击键数,验证所设计的键盘键位布局比现有的输入法键盘键位布局更具科学性。

Based on research and analysis of the Tibetan spelling grammar,a computer Tibetan fast inputkeyboard layout is described by formalization,and some rules and method of Tibetan keyboard layout are derived.According to the Tibetan character’s frequency statistics,the rules of Tibetan keyboard layout,Dvorak keyboardkeystroke convenient index,in order to facilitate memor and consider the similarity in pronunciation of English andTibetan alphabet,a non-repeated code Tibetan keyboard layout is designed.Finally,it proves that the design of thekeyboard layout proposed above is more scientific than the other input methods through the average number ofkeystrokes.