Write a Blog >>
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): Alexander Nolte, Jim Herbsleb, Audris Mockus

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.

Conference Day
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): Alexander NolteUniversity of Tartu, Jim HerbslebCarnegie Mellon University, Audris MockusThe University of Tennessee
17:01
2m
Welcome by the MSR Hackathon Co-Chairs
Hackathon
Jim HerbslebCarnegie Mellon University, Audris MockusThe University of Tennessee, Alexander NolteUniversity of Tartu
17:03
3m
Talk
An Exploratory Study of Project Activity Changepoints in Open Source Software Evolution
Hackathon
James WaldenNorthern Kentucky University, NoahBurgin, Kuljit Kaur ChahalKaur
17:06
3m
Paper
The Diversity-Innovation Paradox in Open-Source Software
Hackathon
Mengchen Sam YongCarnegie Mellon University, Pittsburgh, Pennsylvania, United States, Lavinia Francesca PaganiniFederal University of Pernambuco, Huilian Sophie QiuCarnegie Mellon University, Pittsburgh, Pennsylvania, United States, José Bayoán Santiago CalderónUniversity of Virginia, USA
DOI Pre-print
17:09
4m
Talk
The Secret Life of Hackathon Code
Technical Papers
Ahmed Samir Imam MahmoudUniversity of Tartu, Tapajit DeyLero - The Irish Software Research Centre and University of Limerick, Alexander NolteUniversity of Tartu, Audris MockusThe University of Tennessee, Jim HerbslebCarnegie Mellon University
Pre-print
17:13
3m
Talk
Tracing Vulnerable Code Lineage
Hackathon
David ReidUniversity of Tennessee, Kalvin EngUniversity of Alberta, Chris BogartCarnegie Mellon University, Adam TutkoUniversity of Tennessee - Knoxville
Pre-print
17:16
3m
Talk
Building the Collaboration Graph of Open-Source Software Ecosystem
Hackathon
Pre-print
17:19
1m
Talk
The Secret Life of Hackathon Code
Hackathon
Ahmed Samir Imam MahmoudUniversity of Tartu, Tapajit DeyLero - 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
Info for MSR Room 1: