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On the Effects of Exploring Historical Commit Messages for Developer Recommendation

机译：关于探索历史提交消息以供开发人员推荐的效果

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摘要

Many developer recommendation techniques have been developed in the literature. Among existing studies, most of them are performed based on exploring the historical commit repository. The thought behind them is that developers who submit similar historical commits relevant to the incoming issue are more probably to be the candidates for the current issue resolution. But whether such a thought is always useful for developer recommendation? This paper aims at this problem by conducting a set of empirical studies on four real open-source projects. The results show that, 1) historical commit messages do well reflect the historical experience of the maintenance task of developers and can be used for developer recommendation in most of the time; 2) the number of historical commits submitted by the recommended developer(s) and the similarity value used to select the relevant historical commits should be carefully considered to recommend developers for issue resolution; 3) The efficiency of issue resolution process can be improved if some associated source code files relevant to this issue can be also recommended; and 4) developer recommendation techniques that rank the recommended developers based on the times of co-changed source code files cannot always produce correct recommendation results.
机译：文献中已经开发了许多开发人员推荐技术。在现有研究中，大多数研究是基于探索历史提交存储库进行的。他们的想法是，提交与传入的问题相关的类似历史提交的开发人员更有可能成为当前问题解决方案的候选人。但是，这种想法是否总是对开发人员推荐有用？本文通过对四个真正的开源项目进行一组实证研究来解决这个问题。结果表明：1）历史提交消息很好地反映了开发人员维护任务的历史经验，可以在大多数时间用于推荐开发人员； 2）应仔细考虑推荐开发人员提交的历史提交数量和用于选择相关历史提交的相似性值，以推荐开发人员解决问题； 3）如果还可以建议一些与此问题相关的相关源代码文件，则可以提高问题解决过程的效率；和4）根据共同更改的源代码文件的时间对推荐开发人员进行排名的开发人员推荐技术不能总是产生正确的推荐结果。

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