The time trait is often ignored in the course of mining traditional sequential pattern, in which the sequential item is also without attribute constraint.
传统序列模式挖掘算法往往忽略了序列模式本身的时间特性，所考查的序列项都是单一事件，无属性约束。
3
The prediction method includes five sequential steps of shear wave velocity estimation, fluid substitution, attribute optimization, attribute classification and reservoir prediction.