The next Research & Data showcase will be live-streamed this Wednesday 6/18 at 11.30 PT.

The streaming link will be posted on the lists a few minutes before the showcase starts and as usual you can join the conversation on IRC at #wikimedia-research.

We look forward to seeing you!

Dario

This month:

MoodBar -- lightweight socialization improves long-term editor retention

by Giovanni Luca Ciampaglia -- I will talk about MoodBar, an experimental feature deployed on the English Wikipedia from 2011 to 2013 to streamline the socialization of newcomers. I will present results from a natural experiment that measured the effect of Moodbar on the short-term engagement and long-term retention of newly registered users attempting to edit for the first time Wikipedia. Our results indicate that a mechanism to elicit lightweight feedback and to provide early mentoring to newcomers significantly improves their chances of becoming long-term contributors.

Active Editors' Survival Models

by Leila Zia -- I will talk about first results in building prediction models for active editors' survival. A sample of such prediction models, their performance, and the important variables in predicting survival will be presented.