Mandarin text-to-Pinyin conversion based on context knowledge and D-tree

We discuss the technologies for text-to-Pinyin conversion based on context knowledge and D-tree for Mandarin Chinese. (1) The local and long-distance context knowledge were considered and exploited. (2) The context knowledge was represented by regular expressions. (3) D-trees were built based on the regular expressions. (4) The experimental results show that the approach using context knowledge and D-tree is an efficient solution to implement Chinese text-to-Pinyin conversion.