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Detection of Duplicate Defect Reports Using Natural Language Processing

Per Runeson, Magnus Alexandersson, Oskar Nyholm

Abstract

Defect reports are generated from various testing and development activities in software engineering. Sometimes two reports are submitted that describe the same problem, leading to duplicate reports. These reports are mostly written in structured natural language, and as such, it is hard to compare two reports for similarity with formal methods. In order to identify duplicates, we investigate using natural language processing (NLP) techniques to support the identification. A prototype tool is developed and evaluated in a case study analyzing defect reports at Sony Ericsson mobile communications. The evaluation shows that about 2/3 of the duplicates can possibly be found using the NLP techniques. Different variants of the techniques provide only minor result differences, indicating a robust technology. User testing shows that the overall attitude towards the technique is positive and that it has a growth potential.

BibTeX
@inproceedings{Runeson-al:ICSE07,
  author    = {Per Runeson and
               Magnus Alexandersson and
               Oskar Nyholm},
  title     = {Detection of Duplicate Defect Reports Using Natural Language Processing},
  booktitle = {ICSE},
  pages     = {499--510},
  publisher = {{IEEE} Computer Society},
  year      = {2007},
}

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