The performance of fault localization techniques is critical to their adoption in practice. This paper reports on an empirical study of a wide range of fault localization techniques on real-world faults. Different from previous studies, this paper (1) considers a wide range of techniques from different families, (2) combines different techniques, and (3) considers the execution time of different techniques. Our results reveal that a combined technique significantly outperforms any individual technique (200% increase in faults localized in Top 1), suggesting that combination may be a desirable way to apply fault localization techniques and that future techniques should also be evaluated in the combined setting. Our implementation is publicly available for evaluating and combining fault localization techniques.

中文翻译：

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断层定位族及其组合的实证研究

故障定位技术的性能对其在实践中的采用至关重要。本文报告了对现实世界断层的各种故障定位技术的实证研究。与以往的研究不同，本文（1）考虑了来自不同家族的广泛技术，（2）结合了不同的技术，以及（3）考虑了不同技术的执行时间。我们的结果表明，组合技术明显优于任何单个技术（Top 1 中定位的故障增加了 200%），这表明组合可能是应用故障定位技术的理想方式，未来的技术也应在组合设置中进行评估。我们的实现可公开用于评估和组合故障定位技术。