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MSR 2021
Mon 17 - Wed 19 May 2021
co-located with ICSE 2021
Tue 18 May 2021 17:03 - 17:06 at MSR Room 1 - Hackathon Chair(s): Jim Herbsleb, Audris Mockus, Alexander Nolte

We used a nonparametric changepoint detection algorithm to measure the smoothness of open source software evolution. Our dataset consisted of 8,919 projects with at least four years of history selected from the World of Code. We found changepoints in project activity time series in 99% of the projects, with most projects having between one and six changepoints. Increases and decreases in project activity occur with roughly equal frequency. While most changes are relatively small, on the order of a few authors or few dozen commits per month, there were long tails of much larger project activity changes.

Tue 18 May

Displayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change

17:00 - 17:50
HackathonTechnical Papers / Hackathon at MSR Room 1
Chair(s): Jim Herbsleb Carnegie Mellon University, Audris Mockus The University of Tennessee, Alexander Nolte University of Tartu
17:01
2m
Welcome by the MSR Hackathon Co-Chairs
Hackathon
Jim Herbsleb Carnegie Mellon University, Audris Mockus The University of Tennessee, Alexander Nolte University of Tartu
17:03
3m
Talk
An Exploratory Study of Project Activity Changepoints in Open Source Software Evolution
Hackathon
James Walden Northern Kentucky University, Noah Burgin, Kuljit Kaur Chahal Kaur
17:06
3m
Paper
The Diversity-Innovation Paradox in Open-Source Software
Hackathon
Mengchen Sam Yong Carnegie Mellon University, Pittsburgh, Pennsylvania, United States, Lavinia Francesca Paganini Federal University of Pernambuco, Huilian Sophie Qiu Carnegie Mellon University, Pittsburgh, Pennsylvania, United States, José Bayoán Santiago Calderón University of Virginia, USA
DOI Pre-print
17:09
4m
Talk
The Secret Life of Hackathon Code
Technical Papers
Ahmed Samir Imam Mahmoud University of Tartu, Tapajit Dey Lero - The Irish Software Research Centre and University of Limerick, Alexander Nolte University of Tartu, Audris Mockus The University of Tennessee, Jim Herbsleb Carnegie Mellon University
Pre-print
17:13
3m
Talk
Tracing Vulnerable Code Lineage
Hackathon
David Reid University of Tennessee, Kalvin Eng University of Alberta, Chris Bogart Carnegie Mellon University, Adam Tutko University of Tennessee - Knoxville
Pre-print
17:16
3m
Talk
Building the Collaboration Graph of Open-Source Software Ecosystem
Hackathon
Elena Lyulina JetBrains Research, Mahmoud Jahanshahi
Pre-print
17:19
1m
Talk
The Secret Life of Hackathon Code
Hackathon
Ahmed Samir Imam Mahmoud University of Tartu, Tapajit Dey Lero - The Irish Software Research Centre and University of Limerick
Pre-print
17:20
30m
Live Q&A
Discussions and Q&A
Technical Papers


Information for Participants
Tue 18 May 2021 17:00 - 17:50 at MSR Room 1 - Hackathon Chair(s): Jim Herbsleb, Audris Mockus, Alexander Nolte
Info for room MSR Room 1:

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