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CCR : Tree-pattern based Code-clone Detector

  • Journal of Software Assessment and Valuation
  • Abbr : JSAV
  • 2012, 8(2), pp.13-27
  • Publisher : Korea Software Assessment and Valuation Society
  • Research Area : Engineering > Computer Science
  • Received : December 20, 2012
  • Accepted : December 29, 2012
  • Published : December 31, 2012

Hyo-Sub Lee 1 Doh, Kyung-Goo 1

1한양대학교

ABSTRACT

This paper presents a tree-pattern based code-clone detector as CCR(Code Clone Ransacker) that finds all clusterd dulpicate pattern by comparing all pair of subtrees in the programs. The pattern included in its entirely in another pattern is ignored since only the largest duplicate patterns are interesed. Evaluation of CCR is high precision and recall. The previous tree-pattern based code-clone detectors are known to have good precision and recall because of comparing program structure. CCR is still high precision and the maximum 5 times higher recall than Asta and about 1.9 times than CloneDigger. The tool also include the majority of Bellon's reference corpus.

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