zerotree coding

• 零树编码

zerotree coding的用法和样例：

例句

1. Pre-processing was designed to mark the significance of all nodes and main-processing to finish listless zerotree coding.
   预处理完成对所有节点显著性的标注，主处理完成无链表的零树编码。
2. When coding the wavelet-trees, zerotree is using neatly, which improves the compression efficiency.
   在对小波树编码时，灵活运用了零树的概念，提高了压缩效率。