评估基于红外光谱的故障定位技术的有效性

Qianqian Wang, Chris Parnin, A. Orso
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引用次数: 126

摘要

软件调试既繁琐又耗时。为了减少调试所需的人工工作量,研究人员提出了相当多的技术来自动化故障定位过程;特别是基于信息检索(IR)的技术近年来受到越来越多的关注。虽然据说这些技术是有效的,但它们有一些潜在的限制,可能会影响它们的性能。首先,它们的有效性很可能在很大程度上取决于bug报告的质量;不幸的是,包含丰富信息的高质量bug报告并不总是可用的。其次,这些技术并没有通过涉及实际开发人员的研究进行评估,这是不理想的,因为纯粹的分析评估很难显示调试技术的实际有用性。这项工作的目标是评估基于红外的技术在现实场景中的有用性。我们的调查显示,bug报告并不总是包含丰富的信息,而且低质量的bug报告会在很大程度上影响这些技术的有效性。我们的研究还表明,通过用户研究,高质量的bug报告对开发人员的好处和对基于ir的技术的好处一样多。事实上,在操作高质量报告时,基于ir的技术提供的信息仅在有限的情况下对开发人员有帮助。即使在这些情况下,这些信息也只能帮助开发人员快速找到有问题的文件,而不能帮助他们完成最耗时的任务:理解和修复该文件中的错误。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluating the usefulness of IR-based fault localization techniques
Software debugging is tedious and time consuming. To reduce the manual effort needed for debugging, researchers have proposed a considerable number of techniques to automate the process of fault localization; in particular, techniques based on information retrieval (IR) have drawn increased attention in recent years. Although reportedly effective, these techniques have some potential limitations that may affect their performance. First, their effectiveness is likely to depend heavily on the quality of the bug reports; unfortunately, high-quality bug reports that contain rich information are not always available. Second, these techniques have not been evaluated through studies that involve actual developers, which is less than ideal, as purely analytical evaluations can hardly show the actual usefulness of debugging techniques. The goal of this work is to evaluate the usefulness of IR-based techniques in real-world scenarios. Our investigation shows that bug reports do not always contain rich information, and that low-quality bug reports can considerably affect the effectiveness of these techniques. Our research also shows, through a user study, that high-quality bug reports benefit developers just as much as they benefit IR-based techniques. In fact, the information provided by IR-based techniques when operating on high-quality reports is only helpful to developers in a limited number of cases. And even in these cases, such information only helps developers get to the faulty file quickly, but does not help them in their most time consuming task: understanding and fixing the bug within that file.
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