基于数字键盘的语句级汉字输入键音转换问题

Study on key-to-pinyin conversion problem for Chinese phonetic input technique on digit keyboard

针对基于数字键盘的语句级拼音汉字输入技术,提出了键音转换问题,并给出了解决方案.首先,形式化地定义了键音转换问题,并根据Bayes原理推导出两种键音转换处理模型.然后将键音转换问题转化为有向无环图的路径搜索问题,根据两种处理模型,分别描述了搜索空间并定义了搜索算法.实验结果表明提出的算法能够有效地解决该问题.

For Chinese phonetic input technique on digit keyboard, this paper puts forward the key-to-pinyin- conversion problem and then proposes effective solutions. Firstly, we give the formalized definition of key-to-pinyin-conversion problem and then manage to deduce two models according to Bayes＇ rule in order to solve that problem. After that, the problem is transferred to find an optimal road in a direct acyclic graph （DAG）. The search spaces and algorithms are described respectively for each deduced model. Experiments results prove that key-to-pinyin conversion problem is a bottleneck for Chinese phonetic input technique on digit key- board, and our algorithms can effectively solve the problem.