Community is a common phenomenon in natural ecosystems, human societies as well as artificial multi-agent systems such as those in web and Internet based applications. In many sel...
In recent years, we have witnessed a significant growth of "social computing" services, or online communities where users contribute content in various forms, including ...
Social sites are extremely popular among users but user interactions in most sites revolve around relatively simple tasks, such as uploading resources, tagging and poking friends....
Georgia Koutrika, Benjamin Bercovitz, Filip Kalisz...