Privacy and safety are the most needed features while accessing the data in the IoT. Due to
the complicated decentralization and heterogeneous environment present in IoT, the …

IoT security and privacy have proven to be a significant challenge. The traditional access
control protocols are not suitable for IoT mainly due to a massive scale, ubiquitous …

Enterprises increasingly recognize the compelling economic and operational benefits from
virtualizing and pooling IT resources in the cloud. Nevertheless, the significant and valuable …

In recent years, online social networks (OSNs) have become an essential part of our social
life. In OSNs, users can post resources to predefined groups of users, for example, family …

The repeated execution of workflow logic is usually modeled with loop constructs in the
workflow model. But there are cases where it is not known at design time that a subset of …

The proposed dynamic access control model is based on description logic (DL) augmented
with a default (δ) and an exception (ε) operator to capture context features. Currently, this …

To provide dynamic authorizations to users, access control must take into account context.
Using this idea, we develop a Contextual Multi-Level Access Control Model based on …

Cloud Computing has been developed to deliver information technologies services on
demand to organizations such as well as individual users. In this paper, we will describe an …

Access restrictions are essential in standard information systems and became an issue for
ontologies in the following two aspects. Ontologies can represent explicit and implicit …

In many European countries, elderly citizens constitute a growing part of the population. In
some countries like Belgium, it is expected to be as high as one third of the population by …