关键词: 数据质量, Benford 法则, 异常值探测, 数据挖掘

Abstract: Benford’s law is an important method which is widely used in data quality detection. However, Benford’s law has some limitations. To solve these problems, we further discussed how to combine Benford’s law with anomaly detection and data mining. Thus, we can identify specific sample which may have data quality problem and look for the law it’s appeared. Finally, we did empirical analysis on the quality of China's insurance industry data in 2006 - 2011 by the proposed method. The results showed that this method is reasonable and effective.

Key words: Data Quality, Benford’s Law, Anomaly Detection, Data Mining