We introduce a technique for using an untrusted device, such as a hand-held personal digital assistant or a laptop to perform real nancial transactions without a network. We utili...
The concept of Personal Information Management (PIM) is currently a hot topic of research. Some of the ideas being discussed under this topic have a long history, and they are rele...
—Today’s rich service offer in the World Wide Web increasingly requires the disclosure of personal user data. Service providers’ appetite for personal user data, however, is ...
Location-based services (LBS), enabled by advances in mobile and positioning technologies, have afforded users with a pervasive flexibility to be uniquely addressable and to acces...
We analyze empirical data of Germany’s largest online social lending platform Smava.de to exemplarily study the contribution of unstructured, ambiguous, or unverified informatio...