Even though academics and practitioners extensively apply the notion of the sharing
economy (SE), the conceptualization and the literature construction remained disjointed and …

User experience (UX) research has been criticized for focusing on leisure contexts and
overlooking the work contexts. Moreover, researchers have been drawing attention to how …

We present ReGroup, a novel end-user interactive machine learning system for hel**
people create custom, on demand groups in online social networks. As a person adds …

Usability is arguably one of the most significant social topics and issues within the field of
cybersecurity today. Supported by the need for confidentiality, integrity, availability and other …

End-user interactive machine learning is a promising tool for enhancing human capabilities
with large data. Recent work has shown that we can create end-user interactive machine …

Existing technologies for file sharing differ widely in the granularity of control they give users
over who can access their data; achieving finer-grained control generally requires more user …

Any security system, no matter how well designed and implemented, will have to rely on
people. The fact that human factors play a crucial part in the majority of accidents is a …

Here we model the indirect costs of deploying security controls in small-to-medium
enterprises (SMEs) to manage cyber threats. SMEs may not have the in-house skills and …

Significant effort has been invested in develo** expressive and flexible access-control
languages and systems. However, little has been done to evaluate these systems in …

In access-control systems, policy rules conflict when they prescribe different decisions (allow
or deny) for the same access. We present the results of a user study that demonstrates the …