Publication details

A Large-Scale Study on Source Code Reviewer Recommendation



Type Article in Proceedings
Conference 44th Euromicro Conference on Software Engineering and Advanced Applications (SEAA) 2018
MU Faculty or unit

Institute of Computer Science

Keywords Source Code Reviewer Recommendation; Distributed Software Development; Mining Software Repositories
Description Context: Software code reviews are an important part of the development process, leading to better software quality and reduced overall costs. However, finding appropriate code reviewers is a complex and time-consuming task. Goals: In this paper, we propose a large-scale study to compare performance of two main source code reviewer recommendation algorithms (RevFinder, Naive Bayes-based) in identifying the best code reviewers for opened pull requests. Method: We mined data from Github and Gerrit repositories, building a large dataset of 51 projects, with more than 293K pull requests analyzed, 180K owners and 157K reviewers. Results: Based on the large analysis, we can state that i) no model can be generalized as best for all projects, ii) the usage of different repository (Gerrit, GitHub) has a large impact on the the recommendation results, iii) exploiting sub-projects information available in Gerrit improves the recommendation results.
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