Hi All, A quick correction.* "*The Critical Relationship of Volunteer Created Wikipedia Content to Large-Scale Online Communities" will be presented by *Nicholas Vincent.* Kind regards, Sarah R. On Thu, Apr 12, 2018 at 6:47 PM, Sarah R &lt;srodlund(a)wikimedia.org&gt; wrote: > Hi Everyone, > > The next Research Showcase will be live-streamed this Wednesday, April > 18, 2018 at 11:30 AM (PDT) 18:30 UTC. > > YouTube stream: https://www.youtube.com/watch?v=Z1pa-pr6xis > > As usual, you can join the conversation on IRC at #wikimedia-research. > And, you can watch our past research showcases here. > <https://www.mediawiki.org/wiki/Wikimedia_Research/Showcase#Upcoming_Showcase> > > The Critical Relationship of Volunteer Created Wikipedia Content to > Large-Scale Online CommunitiesBy *Nate TeBlunthuis*The extensive > Wikipedia literature has largely considered Wikipedia in isolation, outside > of the context of its broader Internet ecosystem. Very recent research has > demonstrated the significance of this limitation, identifying critical > relationships between Google and Wikipedia that are highly relevant to many > areas of Wikipedia-based research and practice. In this talk, I will > present a study which extends this recent research beyond search engines to > examine Wikipedia’s relationships with large-scale online communities, > Stack Overflow and Reddit in particular. I will discuss evidence of > consequential, albeit unidirectional relationships. Wikipedia provides > substantial value to both communities, with Wikipedia content increasing > visitation, engagement, and revenue, but we find little evidence that these > websites contribute to Wikipedia in return. Overall, these findings > highlight important connections between Wikipedia and its broader ecosystem > that should be considered by researchers studying Wikipedia. Overall, this > talk will emphasize the key role that volunteer-created Wikipedia content > plays in improving other websites, even contributing to revenue generation. > > > The Rise and Decline of an Open Collaboration System, a Closer LookBy *Nate > TeBlunthuis*Do patterns of growth and stabilization found in large peer > production systems such as Wikipedia occur in other communities? This study > assesses the generalizability of Halfaker etal.’s influential 2013 paper on > “The Rise and Decline of an Open Collaboration System.” We replicate its > tests of several theories related to newcomer retention and norm > entrenchment using a dataset of hundreds of active peer production wikis > from Wikia. We reproduce the subset of the findings from Halfaker and > colleagues that we are able to test, comparing both the estimated signs and > magnitudes of our models. Our results support the external validity of > Halfaker et al.’s claims that quality control systems may limit the growth > of peer production communities by deterring new contributors and that norms > tend to become entrenched over time. > > Kindest regards, > > Sarah R. Rodlund > Senior Project Coordinator-Product & Technology, Wikimedia Foundation | > Hic sunt leones > srodlund(a)wikimedia.org > >