Collaborative filtering is based on the premise that people looking for information should be able to make use of what others have already found and evaluated. Current collaborati...
As online communities proliferate, methods are needed to explore and capture patterns of activity within them. This paper focuses on the problem of identifying active subgroups wi...
"Open contribution systems" (OCS) are online applications that encourage users to contribute and share content in a "public" and open manner. While these syste...
According to the Free Software Movement, the user ought to have "the freedoms to make changes, and to publish improved versions" and "to study how the program works...
Gifford Cheung, Parmit Chilana, Shaun K. Kane, Bra...
This paper presents a project to improve the public transportation in the city of Huajuapan de Le?n, Oaxaca, M?xico. Interactive Multimedia Stations (EMI, for its Spanish acronym)...