Aaron Halfaker

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Aaron Halfaker
Senior Research Scientist, Wikimedia Foundation
Think big. Measure what you can. Build better technologies.
Aaron Halfaker

About me

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 work

I 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.

Contact me



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:

more (12)

Last update: 15:19, 9 July 2015 (UTC)


Peer reviewed