We compute the reputation of Wikipedia authors according to how long their contributions last in the Wikipedia. Specifically, authors whose contributions are preserved, or built-upon, gain reputation; authors whose contributions are undone lose reputation.
We call this a content-driven reputation, since the reputation is computed automatically via text analysis. This contrasts with other reputation systems, such as those in use at ![[WWW]](http://trust.cse.ucsc.edu/wiki/modern/img/moin-www.png){kind=small}
Ebay, where buyer and seller reputations are computed on the basis of user-provided ratings.
