An Information Systems Security Risk Assessment Model Under the Dempster-Shafer Theory of Belief Functions

This paper develops comprehensive formulas for assessing the risk and reliability of Systems Security under the Dempster-Shafer theory of belief functions, using the Trust Services framework as proposed by the American Institute of Certified Public…

Procedures of statistical inference are described which generalize Bayesian inference in specific ways. Probability is used in such a way that in general only bounds may be placed on the probabilities of given events, and probability systems of this…

Given there is a great deal of uncertainty in the process of information systems security (ISS) risk assess- ment, the handling of uncertainty is of great significance for the effectiveness of risk assessment. In this paper, we propose an ISS risk…

In this chapter, we review the basic concepts of the theory of belief functions and sketch a brief history of its conceptual development. We then pro- vide an overview of the classic works and examine how they established a body of knowledge on…

Trust- and reputation-based information security has been attracting global interest and attention in various disciplines. Despite the achievements of the past several decades, there is still a long way to go before the mechanism of trust and…

In the virtual society on Internet seeking trusted nodes is a very difficult task in that there are so many elements to make all things uncertain. Therefore how to make trust decision becomes troublesome and has attracted interest from so many…

A method which used Dempster-Shafer theory was introduced to handle the uncertainty of the network security risk assessment. Firstly, the index system of network security risk assessment was established. Secondly, the improved Dempster's rule of…

Combining the rough set theory with hierarchic analysis model in view of their characteristics and introducing the definition of importance into non-core attributes, a new data reduction algorithm is proposed using a simple discriminative matrix.…

This reply to papers by Pearl and Shafer focuses on two issues underlying the debate on the validity of using Dempster-Shafer theory, namely the requirement of a process-independent semantics and the a priori need for multiple uncertainty calculi.…

Modelling of belief is one of most important issues in intelligent systems. Roughly speaking, one can find two approaches in the literature: one is a logical approach using modal logic; the other is a numerical approach such as Bayesian theory,…