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Configuration of security controls is either static or event driven (such as an incident or in response to recommendations from a risk assessment exercise) in most organizations. These approaches do not adequately protect the organization because threats to information are ever changing and dynamic in nature. STARTS is a decision support architecture for dynamic security management. It is the first...
Hardware-acceleration techniques continue to be used to speed-up the execution of scientific codes. To do so, software developers identify portions of these codes that are amenable for offloading and map them to hardware accelerators. However, offloading such tasks to specialized hardware accelerators is non-trivial. Furthermore, these accelerators can add significant cost to a computing system. Consequently,...
Decimal data processing applications have grown exponentially in recent years thereby increasing the need to have hardware support for decimal arithmetic. In this paper, an improved architecture for efficient Binary Coded Decimal (BCD) addition/subtraction is presented that performs binary addition/subtraction without any extra hardware. The architecture works for both signed and unsigned numbers...
Colored Petri nets (CPNs) are graphical and mathematical models. They are used for formal specification of the system to be built, for analysis of the specification either by simulation or analysis methods. CPNs have often large state spaces that make them difficult to analyze. One way to address the problem of the state space explosion is to reduce the CPN size and still preserving some of its important...
System of systems (SoS) architecting techniques rely on traditional, static tools that were designed for classical stove-piped systems. There is a need for tools that can capture the complex adaptive nature of such SoS. An architecture search methodology using genetic algorithms and a fuzzy assessor was applied to the conceptual architecture design of a generic smart grid and a set of architectures...
Advances in communication and electronics have enabled the development of low cost low power, multi functional sensor nodes that can be used in many different applications like environmental monitoring, military sensing, healthcare etc. TinySec is a link layer security architecture suitable for nodes where resource limitations severe. In this paper we are proposing an energy efficient security provisioning...
Comparative genomics provides a powerful tool for studying evolutionary changes among organisms, helping to identify genes that are conserved among species, as well as genes that give each organism its unique characteristics. However, the huge datasets involved makes this approach impractical on traditional computer architectures leading to prohibitively long runtimes. In this paper, we present a...
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