A ground-truth dataset and classification model for detecting bots in GitHub issue and PR comments

• URL: http://arxiv.org/abs/2010.03303v2
• Date: Tue, 19 Jan 2021 14:22:51 GMT
• Title: A ground-truth dataset and classification model for detecting bots in GitHub issue and PR comments
• Authors: Mehdi Golzadeh, Alexandre Decan, Damien Legay and Tom Mens
• Abstract summary: Bots are used in Github repositories to automate repetitive activities that are part of the distributed software development process. This paper proposes a ground-truth dataset, based on a manual analysis with high interrater agreement, of pull request and issue comments in 5,000 distinct Github accounts. We propose an automated classification model to detect bots, taking as main features the number of empty and non-empty comments of each account, the number of comment patterns, and the inequality between comments within comment patterns.
• Score: 70.1864008701113
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Bots are frequently used in Github repositories to automate repetitive activities that are part of the distributed software development process. They communicate with human actors through comments. While detecting their presence is important for many reasons, no large and representative ground-truth dataset is available, nor are classification models to detect and validate bots on the basis of such a dataset. This paper proposes a ground-truth dataset, based on a manual analysis with high interrater agreement, of pull request and issue comments in 5,000 distinct Github accounts of which 527 have been identified as bots. Using this dataset we propose an automated classification model to detect bots, taking as main features the number of empty and non-empty comments of each account, the number of comment patterns, and the inequality between comments within comment patterns. We obtained a very high weighted average precision, recall and F1-score of 0.98 on a test set containing 40% of the data. We integrated the classification model into an open source command-line tool to allow practitioners to detect which accounts in a given Github repository actually correspond to bots.

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