Contemporary Social Networking Services lack proper transparency and control features for users to understand and to efficiently steer the reach of their content and profile information, i.e. their online privacies. In this paper, we outline the problems and explain different access control mechanisms to approach this field. We briefly introduce our approach of a platform that provides privacy ...

We prove the instability of averages of the conductivity in the inverse boundary value problem of Calderón, also known as the inverse conductivity problem or EIT.

Democratic parliamentary and presidential voting supported by election systems worldwide represents the essential idea behind any free society. In recent years, numerous challenges have been overcome to satisfy this fundamental principle. On one side we have low voter turnout and high electors migration, on the other, sometimes complex electoral systems such as preferential or transferable ball...

In a constructive learning setting, a robot builds up beliefs about the world by interacting – interacting with the world, and with other agents. Asking questions is key in such a setting. It provides a mechanism for interactively exploring possibilities, to extend and explain the robot’s beliefs. The paper focuses on how to linguistically phrase questions in dialogue. How well the point of a q...

In this short paper it will be discussed how crowdfunding concepts can be successfully used to support internal financing projects towards Enterprise Crowdfunding. A central platform to be developed will guarantee transparency in order to ease and facilitate synergy-effects between company divisions and departments. Besides transparency crowdfunding – especially through its federalistic financi...

Artists throughout the ages have discovered a number of techniques to depict transparency. With only a few exceptions, these techniques follow closely the properties of physical transparency. The two best known properties are X-junctions and the luminance relations described by Metelli. X-junctions are seen where the contours of a transparent material cross contours of the surface behind; Metel...

In this paper, we compare the effects of multiple motions in spatial and spectral representations of an image sequence. We describe multiple motions in both domains and establish a comparison regarding their inherent properties when discretized. Though the spectral model provides us with an explicit description of both occlusion and transparency, it turns out that its resolution is very limited...

Unelected officials with coercive powers (e.g., police, prosecutors, bureaucrats) vary markedly in the extent to which citizens view their actions as legitimate. We explore the institutional determinants of legitimate authority in the context of a public goods laboratory experiment. In the experiment, an “authority” can target one “citizen” for punishment following citizen contribution choices....