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2019 | OriginalPaper | Buchkapitel

Changes Are Similar: Measuring Similarity of Pull Requests That Change the Same Code in GitHub

verfasst von : Ping Ma, Danni Xu, Xin Zhang, Jifeng Xuan

Erschienen in: Software Engineering and Methodology for Emerging Domains

Verlag: Springer Singapore

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Abstract

Pull-based development is widely used in globally collaborative platforms, such as GitHub and BitBucket. A pull request is a set of changes to existing source code in a project. A developer submits a pull request and tends to update the source code. Due to the parallel mechanism, several developers may submit multiple pull requests to change the same lines of code. This fact results in the conflict between changes, which makes the project manager difficult to decide which pull request should be merged. In this paper, we conducted a preliminary study on measuring the similarity of pull requests that aim to change the same code in GitHub. We proposed two methods, i.e., the cosine and the doc2vec, to quantify the structural similarity and the semantic similarity between pull requests and evaluated the similarity on four widely-studied open source Java projects. Our study shows that there indeed exists high similarity between competing pull requests and the similarity among projects diversifies. This complicates the merging decision by project managers.

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Titel: Changes Are Similar: Measuring Similarity of Pull Requests That Change the Same Code in GitHub
verfasst von: Ping Ma
Danni Xu
Xin Zhang
Jifeng Xuan
Verlag: Springer Singapore
Buch: Software Engineering and Methodology for Emerging Domains
Print ISBN: 978-981-15-0309-2

Electronic ISBN: 978-981-15-0310-8

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-981-15-0310-8_8

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