The increasing availability of information about people's context makes it possible to deploy context-sensitive services, where access to resources provided or managed by a s...
Recent studies and publications have shown a demand for a secure method to proof someones or somenthings position via a communication channel. In this paper we present a concept a...
This paper explores key issues people experience managing personal boundaries within and across social technologies. We look in particular at email and online social networks. We ...
Many real-world graphs have been shown to be scale-free— vertex degrees follow power law distributions, vertices tend to cluster, and the average length of all shortest paths is...
A social network is defined as a social structure of individuals, who are related (directly or indirectly to each other) based on a common relation of interest, e.g. friendship, t...