Over and Under Sampled Data-sets of Code Issues in Java Open-Source Projects

The dataset comprises code changes made to 15 Java Open-Source projects, classified with sentiment values (0 for negative and 1 for positive) based on developer reviews during various revision submissions. The dataset is available in 8 versions, each containing a sampled dataset using an over or under-sampling technique.本数据集收录了针对15个Java开源（Open-Source）项目的代码变更记录，并基于开发者在多次版本提交环节中的评审结果，为每条变更标注了情感值（0代表负面，1代表正面）。该数据集共提供8个版本，每个版本均包含采用过采样或欠采样技术生成的采样数据集。