Dataset: The Death Spiral of Open Source Projects: A Post-Mortem Analysis of Pull Request Workflow Dynamics

This dataset serves as the replication package for the research article "The Death Spiral of Open Source Projects: A Post-Mortem Analysis of Pull Request Workflow Dynamics" (Accepted for publication in the Journal of Systems and Software). It contains a large-scale, mined dataset of nearly 4 million human-driven pull requests (PRs) and over 6.3 million comments across 3,472 GitHub repositories. The data is structured to facilitate post-mortem analysis of Open Source Software (OSS) project mortality. It contrasts the micro-level workflow dynamics of an Inactive Cohort (abandoned projects) against a 1:1 structurally matched Active Cohort ( successful projects).本数据集为研究论文《开源项目的死亡螺旋：拉取请求工作流动态的事后分析》（已被《系统与软件学报》录用发表）的复现包。该数据集包含从3472个GitHub仓库中采集得到的大规模人工发起的拉取请求（pull request, PR）数据集，总计近400万条，同时包含超过630万条评论数据。该数据集采用结构化设计，以支撑开源软件（Open Source Software, OSS）项目消亡的事后分析研究。该数据集将非活跃群组（已废弃项目）的微观工作流动态，与按结构1:1匹配的活跃群组（成功存续项目）进行对比分析。