计算机科学 ›› 2022, Vol. 49 ›› Issue (12): 99-108.doi: 10.11896/jsjkx.220400289
蒋竞, 平源, 吴秋迪, 张莉
JIANG Jing, PING Yuan, WU Qiu-di, ZHANG Li
摘要： Gitcoin是一个基于开源社区GitHub的众包平台。在Gitcoin中,项目团队可以发布开发任务,开发者选择感兴趣的任务并注册,发布者选择合适的开发者完成任务并发放赏金。但是一些任务因缺乏注册者而失败,部分任务未能合格完成,顺利完成的任务也面临开发者注册间隔时间长的问题。因此,需要一种开发者推荐方法,快速为众包任务发现合适的开发人员,缩短开发者注册众包任务的时间,发现潜在合适的开发者并激励其注册,促进众包任务顺利完成。文中提出了一种基于LGBM分类算法的开发者推荐方法DEVRec(Developer Recommendation)。该方法提取任务特征、开发者特征、开发者和任务的关系特征,使用LGBM分类算法进行二分类,计算开发者注册任务的概率,最终得到众包任务的推荐人员列表。为了评估推荐效果,获取Gitcoin的1 599个已完成众包任务、343名任务发布者和1 605名开发者。实验结果显示,与对比方法Policy Model相比,DEVRec前1位、前3位、前5位和前10位推荐的准确度及MRR指标分别提高了73.11%,119.07%,86.55%,29.24%和62.27%。
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