: A Peer-to-peer Data Network (PDN) is an open and evolving society of peer nodes that assemble into a network to share their data for mutual benefit. PDNs are enabled by distribu...
In times of web 2.0 and its strong focus on user interaction in business models, entrepreneurs and investors of internet businesses often back up their ambitious growth expectatio...
Abstract. Collaborative filtering is a major technique to make personalized recommendations about information items (movies, books, webpages etc) to individual users. In the liter...
Data visualization environments help users understand and analyze their data by permitting interactive browsing of graphical representations of the data. To further facilitate und...
Exercising is often a social activity performed with other people, yet finding compatible exercise partners is difficult in practice. To gain a better understanding of the social ...