Modern Information Retrieval
CCFinder: a multilinguistic token-based code clone detection system for large scale source code
IEEE Transactions on Software Engineering
Mining Version Histories to Guide Software Changes
Proceedings of the 26th International Conference on Software Engineering
A Topological Analysis of the Open Souce Software Development Community
HICSS '05 Proceedings of the Proceedings of the 38th Annual Hawaii International Conference on System Sciences - Volume 07
Proceedings of the 2006 international workshop on Mining software repositories
A Study of Consistent and Inconsistent Changes to Code Clones
WCRE '07 Proceedings of the 14th Working Conference on Reverse Engineering
What dynamic network metrics can tell us about developer roles
Proceedings of the 2008 international workshop on Cooperative and human aspects of software engineering
Latent social structure in open source projects
Proceedings of the 16th ACM SIGSOFT International Symposium on Foundations of software engineering
"Cloning considered harmful" considered harmful: patterns of cloning in software
Empirical Software Engineering
The secret life of bugs: Going past the errors and omissions in software repositories
ICSE '09 Proceedings of the 31st International Conference on Software Engineering
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
Who are Source Code Contributors and How do they Change?
WCRE '09 Proceedings of the 2009 16th Working Conference on Reverse Engineering
An empirical study on the maintenance of source code clones
Empirical Software Engineering
Who is going to mentor newcomers in open source projects?
Proceedings of the ACM SIGSOFT 20th International Symposium on the Foundations of Software Engineering
A case study of cross-system porting in forked projects
Proceedings of the ACM SIGSOFT 20th International Symposium on the Foundations of Software Engineering
Modular construction of an analysis tool for mining software repositories
Proceedings of the 12th annual international conference companion on Aspect-oriented software development
The MSR cookbook: mining a decade of research
Proceedings of the 10th Working Conference on Mining Software Repositories
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Cross-system bug fixing propagation is frequent among systems having similar characteristics, using a common framework, or, in general, systems with cloned source code fragments. While previous studies showed that clones tend to be properly maintained within a single system, very little is known about cross-system bug management. This paper describes an approach to mine explicitly documented cross-system bug fixings, and to relate their occurrences to social characteristics of contributors discussing through the project mailing lists--e.g., degree, betweenness, and brokerage--as well as to the contributors' activity on source code. The paper reports results of an empirical study carried out on FreeBSD and OpenBSD kernels. The study shows that the phenomenon of cross-system bug fixing between these two projects occurs often, despite the limited overlap of contributors. The study also shows that cross-system bug fixings mainly involve contributors with the highest degree, betweenness and brokerage level, as well as contributors that change the source code more than others.