There any many different access-control systems, yet a commonality is that they provide
flexible mechanisms to enforce different access levels. Their importance in organisations to …

Document image quality assessment (DIQA) is an important and challenging problem in real
applications. In order to predict the quality scores of document images, this paper proposes …

The E-health clouds generate an enormous amount of data driven from PHR's, EHR's,
EMR's, patient care, compliance and regulatory requirements. To preserve the privacy and …

In big data environments with big number of users and high volume of data, we need to
manage the corresponding huge number of security policies. Using Attribute-Based Access …

Model-checking is a popular approach to the security analysis of ARBAC policies, but its
effectiveness is hindered by the exponential explosion of the ways in which different users …

We explain how a parameterized model checking technique can be exploited to mechanize
the analysis of access control policies. The main advantage of the approach is to reason …

Access Control is becoming increasingly important for today's ubiquitous systems since it
provides mechanism to prevent sensitive resources in the systems against unauthorized …

Abstract Role Based Access Control (RBAC) has been widely used for restricting resource
access to only authorized users. Administrative Role Based Access Control (ARBAC) …

Understanding how to implement change in security controls is heavily reliant on expert
knowledge, both that intrinsic to how a system can be configured as well as how a current …

In many ubiquitous systems, Access Control systems are often used to regulate system
access from users. One of the main components of such systems is the set of access rules …