Senior Research Scientist, Wikimedia Foundation
Think big. Measure what you can. Build better technologies.
Hi. I'm Aaron Halfaker. I'm a scientist. See projects and publications below. I've been a Wikipedian since 2008. I mostly build tools and run studies, but I make edits where I can. In 2011, I started working with the Wikimedia Foundation as a research scientist. This is my staff account. See my volunteer account, User:EpochFail, for my non-staff work.
My workI use the scientific method to explore the structure and function of open knowledge projects like Wikipedia. My goal is to identify problems/opportunities and to use this knowledge to improve/extend the socio-technical infrastructure that makes them work. See The Rise and Decline for an example of my research and Revision scoring as a service for an example of an experimental technology I'm actively working on.
Disclaimer: I work for the Wikimedia Foundation, and this is the account I intend to use for edits or statements I make in that role. However, the Foundation does not vet all my activity, so edits, statements, or other contributions made by this account may not reflect the views of the Foundation.
Active projects that I am currently working on:
Projects that I've started, but had to put down for the moment:
Completed research projects and reports:
Last update: 15:19, 9 July 2015 (UTC)
- Halfaker, A., Keyes, O., Kluver, D., Thebault-Spieker, J., Nguyen, T., Shores, K., Uduwage, A., Warncke-Wang, M. (2015). User Session Identification Based on Strong Regularities in Inter-activity Time, WWW'15. ACM. pdf)
- Morgan, J. T., Halfaker, A., Taraborelli, D., Hwang, T., & Goggins, S. (2015). Advancing an Industry/Academic Partnership Model for Open Collaboration Research. CSCW'15. m:Research:Open Collaboration Systems Workshop
- Schneider, J., Gelley, B., Halfaker, A. (2014). Accept, decline, postpone: How newcomer productivity is reduced in English Wikipedia by pre-publication review, OpenSym'14. ACM. (pdf)
- Halfaker, A., Geiger, R.S., & Terveen, L. (2014). Snuggle: Designing for Efficient Socialization and Ideological Critique CHI'14. ACM. (pdf)
- Geiger, R.S., & Halfaker, A. (2013). When the Levee Breaks: Without Bots, What Happens to Wikipedia’s Quality Control Processes? WikiSym'13. ACM. (pdf)
- Halfaker, A., Keyes, O., & Taraborelli, D. (2013). Making peripheral participation legitimate: Reader engagement experiments in Wikipedia CSCW'13. (pdf)
- Geiger, R. S. & Halfaker, A. (2013). Using Edit Session to Measure Participation in Wikipedia CSCW'13. ACM. (pdf)
- Halfaker, A., Geiger, R. S., Morgan, J., & Riedl, J. (2013). The Rise and Decline of an Open Collaboration System: How Wikipedia's reaction to sudden popularity is causing its decline. American Behavioral Scientist. (pdf)
- Geiger, R. S., Halfaker, A., Pinchuk, M., & Walling, S. (2012). Defense Mechanism or Socialization Tactic? Improving Wikipedia’s Notifications to Rejected Contributors. ICWSM’12. (pdf)
- Halfaker, A., Kittur, A., & Riedl, J. (2011). Don't Bite the Newbies: How Reverts Affect the Quantity and Quality of Wikipedia Work, WikiSym’11. ACM. (pdf)
- Halfaker, A., Song, B., Stuart, D. A., Kittur, A., & Riedl, J. (2011). NICE: Social translucence through UI intervention, WikiSym’11. ACM. (pdf)
- Panciera, K., Halfaker, A., & Terveen, L. (2009). Wikipedians are born, not made: A study of power editors on Wikipedia, GROUP’09. ACM. (pdf)
- Halfaker, A., Kittur, A., Kraut, R., & Riedl, J. (2009). A Jury of Your Peers: Quality, Experience and Ownership in Wikipedia, WikiSym’09. ACM. (pdf)