Proceedings of the 2006 international workshop on Mining software repositories
Open Borders? Immigration in Open Source Projects
MSR '07 Proceedings of the Fourth International Workshop on Mining Software Repositories
Effects of extrinsic and intrinsic motivation on employee knowledge sharing intentions
Journal of Information Science
Understanding knowledge sharing activities in free/open source software projects: An empirical study
Journal of Systems and Software
Users of Open Source Software - How Do They Get Help?
HICSS '09 Proceedings of the 42nd Hawaii International Conference on System Sciences
The impact of social media on software engineering practices and tools
Proceedings of the FSE/SDP workshop on Future of software engineering research
Design lessons from the fastest q&a site in the west
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Gamification. using game-design elements in non-gaming contexts
CHI '11 Extended Abstracts on Human Factors in Computing Systems
Social coding in GitHub: transparency and collaboration in an open software repository
Proceedings of the ACM 2012 conference on Computer Supported Cooperative Work
Ecological inference in empirical software engineering
ASE '11 Proceedings of the 2011 26th IEEE/ACM International Conference on Automated Software Engineering
Motivating participation in social computing applications: a user modeling perspective
User Modeling and User-Adapted Interaction
Gamification: designing for motivation
interactions
Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining
Proceedings of the 2013 conference on Computer supported cooperative work
Who's who in Gnome: Using LSA to merge software repository identities
ICSM '12 Proceedings of the 2012 IEEE International Conference on Software Maintenance (ICSM)
Analyzing Measurements of the R Statistical Open Source Software
SEW '12 Proceedings of the 2012 35th Annual IEEE Software Engineering Workshop
Assessing Technical Candidates on the Social Web
IEEE Software
Communication in open source software development mailing lists
Proceedings of the 10th Working Conference on Mining Software Repositories
A comparison of identity merge algorithms for software repositories
Science of Computer Programming
The Evolution of the R Software Ecosystem
CSMR '13 Proceedings of the 2013 17th European Conference on Software Maintenance and Reengineering
Gender, Representation and Online Participation: A Quantitative Study of StackOverflow
SOCIALINFORMATICS '12 Proceedings of the 2012 International Conference on Social Informatics
Mining Stack Exchange: Expertise Is Evident from Initial Contributions
SOCIALINFORMATICS '12 Proceedings of the 2012 International Conference on Social Informatics
StackOverflow and GitHub: Associations between Software Development and Crowdsourced Knowledge
SOCIALCOM '13 Proceedings of the 2013 International Conference on Social Computing
Software developers are humans, too!
Proceedings of the companion publication of the 17th ACM conference on Computer supported cooperative work & social computing
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Historically, mailing lists have been the preferred means for coordinating development and user support activities. With the emergence and popularity growth of social Q&A sites such as the StackExchange network (e.g., StackOverflow), this is beginning to change. Such sites offer different socio-technical incentives to their participants than mailing lists do, e.g., rich web environments to store and manage content collaboratively, or a place to showcase their knowledge and expertise more vividly to peers or potential recruiters. A key difference between StackExchange and mailing lists is gamification, i.e., StackExchange participants compete to obtain reputation points and badges. In this paper, we use a case study of R (a widely-used tool for data analysis) to investigate how mailing list participation has evolved since the launch of StackExchange. Our main contribution is the assembly of a joint data set from the two sources, in which participants in both the texttt{r-help} mailing list and StackExchange are identifiable. This permits their activities to be linked across the two resources and also over time. With this data set we found that user support activities show a strong shift away from texttt{r-help}. In particular, mailing list experts are migrating to StackExchange, where their behaviour is different. First, participants active both on texttt{r-help} and on StackExchange are more active than those who focus exclusively on only one of the two. Second, they provide faster answers on StackExchange than on texttt{r-help}, suggesting they are motivated by the emph{gamified} environment. To our knowledge, our study is the first to directly chart the changes in behaviour of specific contributors as they migrate into gamified environments, and has important implications for knowledge management in software engineering.