5Roy C K, Cordy J R. A survey on software clone detection research, Queen's Technical Report 541 [R]. 2007:115.
6Baker I~ S. On finding duplication and near-duplicate in large software systems[C]//Proceedings of the 2rid Working Conference on Reverse Engineering (WCRE '95). Washington, DC, USA: IEEE Computer Society, 1995: 86-95.
7Mockus A. Large-scale code reuse in open source sottware[C]// Proceedings of the 1st International Workshop on Emerging Trends in FLOSS Research and Development (FLOSS '07),Minneapolis, USA, 2007. Washington, DC, USA: IEEE Com- puter Society, 2007: 1-7.
8Liu Peng. Cloud computing: programmers return to the age of personal hero[J/OL]. Programmers, 2010(7). http://www. programmer, com. cn/365.
9Bellon S, Koschke R, Antoniol G, et al. Comparison and evaluation of clone detection tools[J]. IEEE Transactions on Software Engineering, 2007, 33(9): 577-591.
10Kamiya T, Kusumoto S, Inoue K. CCFinder: a multi-linguistic token-based code clone detection system for large scale source code[J]. IEEE Transactions on Software Engineering, 2002, 28(7): 654-670.