Therefore, firstly the paper makes use of GA method to find the frequent time interval between two items in the sequence, then according to the frequent time interval scans the affair sequence database and finally finds out the frequent sequence.

• 利用了灰关联分析方法找出两个项之间的频繁时间间隔；再利用该间隔扫描事务序列数据库；从而最终找出频繁序列.