A series of notations relative to association rules was presented.According to the current transaction database, a novel acquisition method of multiple-level taxonomy was proposed.

• 摘要定义了一系列关联规则的相关概念，然后，针对现有的销售事务数据库，提出了一种改进的获取多层次信息方法，并据此对各数据进行压缩编码，减少处理时间。