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SZZ unleashed: an open implementation of the SZZ algorithm: featuring example usage in a study of just-in-time bug prediction for the Jenkins project
RISE - Research Institutes of Sweden, ICT, SICS.ORCID iD: 0000-0001-7879-4371
Lund University, Sweden.
Lund University, Sweden.
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Machine learning applications in software engineering often rely on detailed information about bugs. While issue trackers often contain information about when bugs were fixed, details about when they were introduced to the system are often absent. As a remedy, researchers often rely on the SZZ algorithm as a heuristic approach to identify bug-introducing software changes. Unfortunately, as reported in a recent systematic literature review, few researchers have made their SZZ implementations publicly available. Consequently, there is a risk that research effort is wasted as new projects based on SZZ output need to initially reimplement the approach. Furthermore, there is a risk that newly developed (closed source) SZZ implementations have not been properly tested, thus conducting research based on their output might introduce threats to validity. We present SZZ Unleashed, an open implementation of the SZZ algorithm for git repositories. This paper describes our implementation along with a usage example for the Jenkins project, and conclude with an illustrative study on just-in-time bug prediction. We hope to continue evolving SZZ Unleashed on GitHub, and warmly invite the community to contribute.

Place, publisher, year, edition, pages
2019. p. 7-12
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-40581DOI: 10.1145/3340482.3342742ISBN: 978-1-4503-6855-1 (print)OAI: oai:DiVA.org:ri-40581DiVA, id: diva2:1363506
Conference
Proceedings of the 3rd ACM SIGSOFT International Workshop on Machine Learning Techniques for Software Quality Evaluation. Tallinn, Estonia — August 27 - 27, 2019
Available from: 2019-10-22 Created: 2019-10-22 Last updated: 2019-10-22

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