https://youtu.be/GTV4UHegvAk 概要: In the field of software development, version control systems such as Git are imperative tools that help software teams manage source code. Git can detect a change history of each file individually. Even if a file was renamed in the past, Git can identify and track the before renamed file based on content similarities, which are calculated as the ratio of lines that match pre- and post-change files to the total number of lines. However, line-based comparison techniques do not consider source code structures and have coarse granularity, which can result in misidentifying pre-change files and tracking interruptions. To resolve these problems, this paper proposes a technique that calculates file content similarities using source code differences based on an abstract syntax tree. In experiments conducted on 197 open source Java-based projects, we found that the number of rename detections increased 3.3%, and that, on average, our technique tracked commits 1.37 times more frequently than previous technique. We also measured accuracy levels and found that the maximum F-measure was 0.943, which is higher than the 0.926 maximum value of the line-based technique. タグ: accurate, ast, differences, file, towards, tracking

@inproceedings{AkiraFujimoto2021,
  author = {Akira Fujimoto and Yoshiki Higo and Shinji Kusumoto},
  title = {Towards Accurate File Tracking Based on AST Differences},
  booktitle = {Proceedings of the 28th Asia-Pacific Software Engineering Conference (APSEC 2021)},
  pages = {569--574},
  year = {2021},
  month = {dec}
}