NDLI: Will Fault Localization Work for These Failures? An Automated Approach to Predict Effectiveness of Fault Localization Tools

Content Provider	IEEE Xplore Digital Library
Author	Le, T.-D.B. Lo, D.
Copyright Year	2013
Description	Author affiliation: Sch. of Inf. Syst., Singapore Manage. Univ., Singapore, Singapore (Le, T.-D.B.; Lo, D.)
Abstract	Debugging is a crucial yet expensive activity to improve the reliability of software systems. To reduce debugging cost, various fault localization tools have been proposed. A spectrum-based fault localization tool often outputs an ordered list of program elements sorted based on their likelihood to be the root cause of a set of failures (i.e., their suspiciousness scores). Despite the many studies on fault localization, unfortunately, however, for many bugs, the root causes are often low in the ordered list. This potentially causes developers to distrust fault localization tools. Recently, Parnin and Orso highlight in their user study that many debuggers do not find fault localization useful if they do not find the root cause early in the list. To alleviate the above issue, we build an oracle that could predict whether the output of a fault localization tool can be trusted or not. If the output is not likely to be trusted, developers do not need to spend time going through the list of most suspicious program elements one by one. Rather, other conventional means of debugging could be performed. To construct the oracle, we extract the values of a number of features that are potentially related to the effectiveness of fault localization. Building upon advances in machine learning, we process these feature values to learn a discriminative model that is able to predict the effectiveness of a fault localization tool output. In this preliminary work, we consider an output of a fault localization tool to be effective if the root cause appears in the top 10 most suspicious program elements. We have experimented our proposed oracle on 200 faulty programs from Space, NanoXML, XML-Security, and the 7 programs in Siemens test suite. Our experiments demonstrate that we could predict the effectiveness of fault localization tool with a precision, recall, and F-measure (harmonic mean of precision and recall) of 54.36%, 95.29%, and 69.23%. The numbers indicate that many ineffective fault localization instances are identified correctly, while only very few effective ones are identified wrongly.
Starting Page	310
Ending Page	319
File Size	361238
Page Count	10
File Format	PDF
ISBN	9780769549811
ISSN	10636773
DOI	10.1109/ICSM.2013.42
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-22
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Feature extraction Predictive models Vectors Support vector machines Training Computer bugs Debugging Classification Fault Localization Effectiveness Prediction
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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