Quality Evaluation Method of Automatic Software Repair Using Syntax Distance Metrics

In recent years, test-based automatic program repair has attracted widespread attention. However, the test suites in practice are not perfect ways to guarantee correctness of patches generated by tools, and weak lead a large number incorrect produced existing tool. To reduce we propose patch quality evaluation method based on syntax distance metrics, which measures through four features—variable, expression, structure, location. By fusing values features, can be evaluated. Our evaluates 368 from multiple famous such as jKali, Nopol, SimFix, DynaMoth, CapGen; 95% correct were ranked top one plausible for each defect, indicates our find high-quality patches.