Based on the improved Kontogiannis metrics and the automatic detection technology of duplicated code which is based on procedure blueprint,a tool for automatic detection of duplicated dode is designed.

The duplicated code not only reduces the maintainability of the software, but also is prone to introduce a significant proportion of bugs into systems.

This paper also proposes a method to detect duplicated code.

This article not only focuses on data cleaning methods to ensure data quality of the safety of marketed drugs,such as triage strategies and duplicate detection,but also compares the classical signal detection methods in practice,including the conformity of these methods.