The$ I and$ j variables are counters that control the addition of a vertical bar (|) which is an OR symbol in the HTK format. $i和$j变量是计数器,控制垂直竖线()的添加,这个竖线是HTK格式中的一个OR符号。
Recently sequential pattern mining algorithms can be divided into three classes: a candidate generation-and-test approach based on Apriori, a candidate generation-and-test approach based on vertical format, a pattern-growth method. 目前的主要序列模式挖掘算法可以分为3类:①基于Apriori的候选码生成-测试的方法;②基于垂直格式的候选码生成-测试的方法;