知识建模的清洗模型研究  

Research of Data Cleaning Model Based on Knowledge

作　　者：石彦华[1] 李蜀瑜[1] 

机构地区：[1]陕西师范大学计算机科学学院,陕西西安710062

出　　处：《计算机技术与发展》2011年第11期124-128,132,共6页Computer Technology and Development

基　　金：国家自然科学基金(60671063);中央高校基本科研专项资金(GK201002011);教育部科学研究重点项目(107106)

摘　　要：数据清洗是保证数据质量的实用方法,但是如何实施灵活的和有效的数据清洗一直是研究的难点。基于此,提出了知识建模的数据清洗来保证数据质量的有效方法。依据清洗系统的现状分析,首先给出了静态库、动态库和静态清洗系统、动态清洗系统的相关概念;然后提出了知识建模的清洗模型,并给出了模型的具体设计和实现过程。最后通过使用知识建模的清洗模型,应用企业信用数据交换系统作为实验,验证了它的灵活性和有效性,保证了数据质量。Data cleaning has been an efficient and practical approach to improve data quality, but how to implement flexible and valid data cleaning is still an open issue. It proposed a data cleaning algorithm based on knowledge model to ensure the validity of data quality. First, the concept of static database, dynamic database, static cleaning system and dynamic cleaning system were given based on the a- nalysis of current cleaning system. And then data cleaning algorithm based on knowledge model was proposed, and detailed specific design and implementation process. Finally, an application example is given to show the flexibility and validity of modeling, and ensure data quality.

关 键 词：动态清洗 动态规则 数据学习 规则学习 数据质量 清洗模型 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]