DagSemProc.08261.7.pdf
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Clone Detection via Structural Abstraction
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Dagstuhl Seminar Proceedings, Volume 8261
Series: Dagstuhl Seminar Proceedings (DagSemProc) - License:
Creative Commons Attribution 4.0 International license
- Publication Date: 2008-11-20
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William S. Evans, Christoph W. Fraser, and Fei Ma. Clone Detection via Structural Abstraction. In Structure-Based Compression of Complex Massive Data. Dagstuhl Seminar Proceedings, Volume 8261, pp. 1-10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)
https://doi.org/10.4230/DagSemProc.08261.7
https://doi.org/10.4230/DagSemProc.08261.7
Abstract
This paper describes the design, implementation, and
application of a new algorithm to detect cloned code. It
operates on the abstract syntax trees formed by many compilers
as an intermediate representation. It extends prior
work by identifying clones even when arbitrary subtrees
have been changed. On a 440,000-line code corpus, 20-
50%of the clones it detected were missed by previous methods.
The method also identifies cloning in declarations, so
it is somewhat more general than conventional procedural
abstraction.
Keywords
- Clone Detection
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