— Social interaction history refers to traces of social interaction in information spaces. These traces have potential to help users explore and navigate through information spac...
The new social media sites--blogs, wikis, del.icio.us and Flickr, among others--underscore the transformation of the Web to a participatory medium in which users are actively crea...
—To understand the diffusive spreading of a product in a telecom network, whether the product is a service, handset, or subscription, it can be very useful to study the structure...
Pal Roe Sundsoy, Johannes Bjelland, Geoffrey Canri...
Abstract—Secondary spectrum access is emerging as a promising approach for mitigating the spectrum scarcity in wireless networks. Coordinated spectrum access for secondary users ...
A homomorphism from a graph G to a graph R is locally surjective if its restriction to the neighborhood of each vertex of G is surjective. Such a homomorphism is also called an R-r...