On the Evolution of Wikipedia Rodrigo B. Almeida Barzan Mozafari Junghoo Cho UCLA Computer Science UCLA Computer Science UCLA Computer Science Department Department Department Los Angeles - USA Los Angeles - USA Los Angeles - USA
[email protected] [email protected] [email protected] Abstract time. So far, several studies have focused on understanding A recent phenomenon on the Web is the emergence and pro- and characterizing the evolution of this huge repository of liferation of new social media systems allowing social inter- data [5, 11]. action between people. One of the most popular of these Recently, a new phenomenon, called social systems, has systems is Wikipedia that allows users to create content in a emerged from the Web. Generally speaking, such systems collaborative way. Despite its current popularity, not much allow people not only to create content, but also to easily is known about how users interact with Wikipedia and how interact and collaborate with each other. Examples of such it has evolved over time. systems are: (1) Social network systems such as MySpace In this paper we aim to provide a first, extensive study of or Orkut that allow users to participate in a social network the user behavior on Wikipedia and its evolution. Compared by creating their profiles and indicating their acquaintances; to prior studies, our work differs in several ways. First, previ- (2) Collaborative bookmarking systems such as Del.icio.us or ous studies on the analysis of the user workloads (for systems Yahoo’s MyWeb in which users are allowed to share their such as peer-to-peer systems [10] and Web servers [2]) have bookmarks; and (3) Wiki systems that allow collaborative mainly focused on understanding the users who are accessing management of Web sites.