“Cloud” computing – a relatively recent term, builds on decades of research in virtualization, distributed computing, utility computing, and more recently networking, web and software services. It implies a service oriented architecture, reduced information technology overhead for the end-user, great flexibility, reduced total cost of ownership, on-demand services and many other things. This pa...

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A popular-press self-help manual is reviewed with an eye toward two issues. First, the popularity of such books documents the existence of considerable demand for technologies that address the everyday problems (in the present case, troublesome conversations) of nondisordered individuals. Second, many ideas invoked in popular-press books may be interpretable within an analysis of verbal behavio...

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Role-based access control is one the most popular models adopted in commercial security and identity management products. However creating and maintaining such systems have been proven to be not an easy task. In this paper we review several issues that affect the usability of RBAC systems and discuss the advantages and limitations of role mining, a popular topic in the research community, as me...