DupFinder is a Bugzilla extension to find duplicate bug reports. The current implementation is based on the work by Runeson et al.[1].
[1] P. Runeson, M. Alexandersson, and O. Nyholm. Detection of duplicate defect reports using natural language processing. In ICSE, pages 499-510, 2007.
Follow these steps to install DupFinder:
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Go to your Bugzilla installation folder.
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Put extension files in:
extensions/DupFinder -
Run checksetup.pl.
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Restart your webserver (if needed, e.g., when using mod_perl).