— 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...
We have friends we consider very close and acquaintances we barely know. The social sciences use the term tie strength to denote this differential closeness with the people in our...
— Ubiquitous computing provides services to users, according to their current situation. Interactions with such programs are as implicit as possible. We find among the applicati...
Virtual communities that make use of social network site features blend known applications of virtual communities. These communities can be simultaneously social and commercial, or...