CCFinder: a multilinguistic token-based code clone detection system for large scale source code
IEEE Transactions on Software Engineering
Experiment on the Automatic Detection of Function Clones in a Software System Using Metrics
ICSM '96 Proceedings of the 1996 International Conference on Software Maintenance
On finding duplication and near-duplication in large software systems
WCRE '95 Proceedings of the Second Working Conference on Reverse Engineering
Evaluation Experiments on the Detection of Programming Patterns Using Software Metrics
WCRE '97 Proceedings of the Fourth Working Conference on Reverse Engineering (WCRE '97)
Identifying Similar Code with Program Dependence Graphs
WCRE '01 Proceedings of the Eighth Working Conference on Reverse Engineering (WCRE'01)
Clone Detection Using Abstract Syntax Trees
ICSM '98 Proceedings of the International Conference on Software Maintenance
A Language Independent Approach for Detecting Duplicated Code
ICSM '99 Proceedings of the IEEE International Conference on Software Maintenance
Comprehending Reality " Practical Barriers to Industrial Adoption of Software Maintenance Automation
IWPC '03 Proceedings of the 11th IEEE International Workshop on Program Comprehension
Using Origin Analysis to Detect Merging and Splitting of Source Code Entities
IEEE Transactions on Software Engineering
An empirical study of code clone genealogies
Proceedings of the 10th European software engineering conference held jointly with 13th ACM SIGSOFT international symposium on Foundations of software engineering
Identifying Refactorings from Source-Code Changes
ASE '06 Proceedings of the 21st IEEE/ACM International Conference on Automated Software Engineering
"Cloning Considered Harmful" Considered Harmful
WCRE '06 Proceedings of the 13th Working Conference on Reverse Engineering
How Clones are Maintained: An Empirical Study
CSMR '07 Proceedings of the 11th European Conference on Software Maintenance and Reengineering
Identifying Changed Source Code Lines from Version Repositories
MSR '07 Proceedings of the Fourth International Workshop on Mining Software Repositories
Change Distilling: Tree Differencing for Fine-Grained Source Code Change Extraction
IEEE Transactions on Software Engineering
Comparison and Evaluation of Clone Detection Tools
IEEE Transactions on Software Engineering
A Study of Consistent and Inconsistent Changes to Code Clones
WCRE '07 Proceedings of the 14th Working Conference on Reverse Engineering
ICPC '08 Proceedings of the 2008 The 16th IEEE International Conference on Program Comprehension
Tracking Your Changes: A Language-Independent Approach
IEEE Software
Code siblings: Technical and legal implications of copying code between applications
MSR '09 Proceedings of the 2009 6th IEEE International Working Conference on Mining Software Repositories
SCAM '09 Proceedings of the 2009 Ninth IEEE International Working Conference on Source Code Analysis and Manipulation
Maintaining Fine-Grained Code Metadata Regardless of Moving, Copying and Merging
SCAM '09 Proceedings of the 2009 Ninth IEEE International Working Conference on Source Code Analysis and Manipulation
An empirical study on the maintenance of source code clones
Empirical Software Engineering
Relation of code clones and change couplings
FASE'06 Proceedings of the 9th international conference on Fundamental Approaches to Software Engineering
Fourth International Workshop on Software Clones (IWSC)
Proceedings of the 32nd ACM/IEEE International Conference on Software Engineering - Volume 2
Is cloned code older than non-cloned code?
Proceedings of the 5th International Workshop on Software Clones
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Cloning is widespread in today's systems where automated assistance is required to locate cloned code. Although the evolution of clones has been studied for many years, no attempt has been made so far to automatically distinguish the original source code leading to cloned copies. This paper presents an approach to classify the clones of a clone pair based on the version information available in version control systems. This automatic classification attempts to distinguish the original from the copy. It allows for the fact that the clones may be modified and thus consist of lines coming from different versions. An evaluation, based on two case studies, shows that when comments are ignored and a small tolerance is accepted, for the majority of clone pairs the proposed approach can automatically distinguish between the original and the copy.