The paper introduces XML to describe data with different structure and settle data integration problem. Data pretreatment is processed based on it. The model and arithmetics for data pretreatment using domain knowledge are designed in ARAC.

• 本文引入XML作为异构数据的描述,解决异构数据间集成的问题,在此基础上进行数据预处理,本文设计了将领域知识应用于ARAC数据预处理的模型和算法,然后利用基于最大向前访问路径的事务模式识别算法形成准确率较高的事务模式。