CORRECT: Code Reviewer Recommendation in GitHub Based on Cross-Project and Technology Experience

07/09/2018
by   Mohammad Masudur Rahman, et al.
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Peer code review locates common coding rule violations and simple logical errors in the early phases of software development, and thus reduces overall cost. However, in GitHub, identifying an appropriate code reviewer for a pull request is a non-trivial task given that reliable information for reviewer identification is often not readily available. In this paper, we propose a code reviewer recommendation technique that considers not only the relevant cross-project work history (e.g., external library experience) but also the experience of a developer in certain specialized technologies associated with a pull request for determining her expertise as a potential code reviewer. We first motivate our technique using an exploratory study with 10 commercial projects and 10 associated libraries external to those projects. Experiments using 17,115 pull requests from 10 commercial projects and six open source projects show that our technique provides 85 about 86 are highly promising. Comparison with the state-of-the-art technique also validates the empirical findings and the superiority of our recommendation technique.

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