Geodesic
Tree Slicing in Clone Detection: Syntactic Analysis Made (Semi)-Semantic
Modelirovanie i analiz informacionnyh sistem, Tome 19 (2012) no. 6, pp. 69-78

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Nowadays most of software contains code duplication that leads to serious problems in software maintenance. A lot of different clone detection approaches have been proposed over the years to deal with this problem, but almost all of them do not consider semantic properties of the source code. We propose to reinforce traditional tree-based clone detection algorithms by using additional information about variable slices. This allows to find intertwined/gapped clones on variables; preliminary evaluation confirms applicability of our approach to real-world software.
Keywords: Clone Detection, Tree Slicing, Tree Patterns, Software Maintenance. 
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     author = {Marat Akhin and Vladimir Itsykson},
     title = {Tree {Slicing} in {Clone} {Detection:} {Syntactic} {Analysis} {Made} {(Semi)-Semantic}},
     journal = {Modelirovanie i analiz informacionnyh sistem},
     pages = {69--78},
     publisher = {mathdoc},
     volume = {19},
     number = {6},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAIS_2012_19_6_a5/}
}
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Marat Akhin; Vladimir Itsykson. Tree Slicing in Clone Detection: Syntactic Analysis Made (Semi)-Semantic. Modelirovanie i analiz informacionnyh sistem, Tome 19 (2012) no. 6, pp. 69-78. http://geodesic.mathdoc.fr/item/MAIS_2012_19_6_a5/