Refactoring: improving the design of existing code
Refactoring: improving the design of existing code
Efficient token based clone detection with flexible tokenization
Proceedings of the the 6th joint meeting of the European software engineering conference and the ACM SIGSOFT symposium on The foundations of software engineering
Comparison and evaluation of code clone detection techniques and tools: A qualitative approach
Science of Computer Programming
A Data Mining Approach for Detecting Higher-Level Clones in Software
IEEE Transactions on Software Engineering
Evaluating a query framework for software evolution data
ACM Transactions on Software Engineering and Methodology (TOSEM) - Testing, debugging, and error handling, formal methods, lifecycle concerns, evolution and maintenance
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In previous work, we described a technique for detecting designlevel similar program structures that we called structural clones. Structural clones are recurring configurations of simple clones (i.e., similar code fragments). In this paper, we show how structural clone analysis extends the benefits of analysis based on simple clones only. First, we present experimental results showing that in many cases simple clones participated in structural clones. In such cases, structural clones being larger than simple clones but smaller in number, allow analysts to see the "forest from the trees", as far as the similarity situation is concerned. We provide arguments and examples to show how the knowledge of structural clones - their location and exact similarities and differences - helps in program understanding, design recovery, maintenance, and refactoring.