Fuzzy Rule-Based Approach for Software Fault Prediction

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Research Article

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IEEE Transactions on Systems, Man, and Cybernetics: Systems


Knowing faulty modules prior to testing makes testing more effective and helps to obtain reliable software. Here, we develop a framework for automatic extraction of human understandable fuzzy rules for software fault detection/classification. This is an integrated framework to simultaneously identify useful determinants (attributes) of faults and fuzzy rules using those attributes. At the beginning of the training, the system assumes every attribute (feature) as a useless feature and then uses a concept of feature attenuating gate to select useful features. The learning process opens the gates or closes them more tightly based on utility of the features. Our system can discard derogatory and indifferent attributes and select the useful ones. It can also exploit subtle nonlinear interaction between attributes. In order to demonstrate the effectiveness of the framework, we have used several publicly available software fault data sets and compared the performance of our method with that of some existing methods. The results using tenfold cross-validation setup show that our system can find useful fuzzy rules for fault prediction.

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