一句话:指出缺陷预测研究应审慎选择评估指标,尤其面对数据不平衡,才能正确评价模型优劣。
软件缺陷预测研究已采用多种评估指标来衡量预测模型性能。本文进一步强调,选择适当指标对于正确评估给定缺陷预测模型的优势与不足至关重要,尤其是大多数缺陷预测任务都面临数据不平衡问题。作者围绕评估指标选择的重要性展开论述,提醒研究者若不考虑数据不平衡等任务特性,评估结果可能无法真实反映模型能力。该文属于立场/讨论性工作,未在摘要中报告具体实验,但为缺陷预测研究的评估实践提供了警示与建议。
Software defect prediction research has adopted various evaluation measures to assess the performance of prediction models. In this paper, we further stress on the importance of the choice of appropriate measures in order to correctly assess strengths and weaknesses of a given defect prediction model, especially given that most of the defect prediction tasks suffer from data imbalance.