MSR 2020
Mon 29 - Tue 30 June 2020
co-located with ICSE 2020
Mon 29 Jun 2020 17:04 - 17:12 at MSR:Zoom - Github & OSS Datasets Chair(s): Olga Baysal

GitHub projects can be easily replicated through the site’s fork process or through a Git clone-push sequence. This is a problem for  empirical software engineering, because it can lead to skewed results  or mistrained machine learning models. We provide a dataset of 10.6  million GitHub projects that are copies of others, and link each record with the project’s ultimate parent. The ultimate parents were derived from a ranking along six metrics. The project cliques were calculated as the connected components of an 18.2 million node and 12 million edge denoised graph created by directing edges to ultimate parents. The graph was created by filtering out more than 30 hand-picked and 2.3 million pattern-matched clumping projects. Projects that introduced unwanted clumping were identified by repeatedly visualizing shortest path distances between unrelated important projects. Our dataset identified 30 thousand duplicate projects in an existing popular reference dataset of 1.8 million projects. An evaluation of our dataset against another created independently with different methods found a significant overlap, but also differences attributed to the operational definition of what projects are considered as related. 

Mon 29 Jun
Times are displayed in time zone: (UTC) Coordinated Universal Time change

msr-2020-papers
16:30 - 17:30: Technical Papers - Github & OSS Datasets at MSR:Zoom
Chair(s): Olga BaysalCarleton University

Q/A & Discussion of Session Papers over Zoom (Joining info available on Slack)

msr-2020-Data-showcase16:30 - 16:38
Live Q&A
Xunhui ZhangNational University of Defense Technology, China, Ayushi RastogiPostdoctoral researcher at TU Delft, Yue YuCollege of Computer, National University of Defense Technology, Changsha 410073, China
Pre-print Media Attached
msr-2020-Data-showcase16:38 - 16:47
Live Q&A
Usman Ashraf, Christoph Mayr-DornJohannes Kepler University Linz, Alexander EgyedJohannes Kepler University, Linz, Sebastiano Panichella
Media Attached
msr-2020-Data-showcase16:47 - 16:55
Live Q&A
Audris Mockus, Zoe KottiAthens University of Economics and Business, Diomidis SpinellisAthens University of Economics and Business, Gabriel Dusing
Media Attached
msr-2020-Data-showcase16:55 - 17:04
Live Q&A
Diomidis SpinellisAthens University of Economics and Business, Zoe KottiAthens University of Economics and Business, Konstantinos Kravvaritis, Georgios Theodorou, Panos Louridas Athens University of Economics and Business
DOI Pre-print Media Attached
msr-2020-Data-showcase17:04 - 17:12
Live Q&A
Diomidis SpinellisAthens University of Economics and Business, Zoe KottiAthens University of Economics and Business, Audris Mockus
DOI Pre-print Media Attached
msr-2020-Data-showcase17:12 - 17:21
Live Q&A
Tanner Fry, Tapajit Dey, Andrey KarnauchUniversity of Tennessee Knoxville, Audris Mockus
Pre-print Media Attached
msr-2020-Data-showcase17:21 - 17:30
Live Q&A
Maëlick Claes University of Oulu, Mika MäntyläUniversity of Oulu
Media Attached