498 search results - page 65 / 100 » Collaborative Filtering CAPTCHAs |
DEBU
2008
13 years 7 months ago
2008
The open nature of collaborative recommender systems allows attackers who inject biased profile data to have a significant impact on the recommendations produced. Standard memory-...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
Spectrum sensing, which aims at detecting spectrum holes, is the precondition for the implementation of cognitive radio. Collaborative spectrum sensing among the cognitive radio n...
CHI
2005
ACM
14 years 8 months ago
2005
ACM
We explore the concept of social landmarks in complex, shared information and coordination environments. Previous research in navigation and shared spaces has tended to emphasize ...
CSCW
2000
ACM
14 years 1 days ago
2000
ACM
Locating the expertise necessary to solve difficult problems is a nuanced social and collaborative problem. In organizations, some people assist others in locating expertise by ma...
CORR
2006
Springer
13 years 7 months ago
2006
Springer
The new social media sites--blogs, wikis, Flickr and Digg, among others--underscore the transformation of the Web to a participatory medium in which users are actively creating, e...