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New tools and techniques are emerging to handle the complexities that might arise with the development of software systems. Reactive agent models are one such area that is emerging as a powerful paradigm in software engineering. This paper describes issues, trends, and approaches that exhibit the innovative characteristic of the reactive agent model and the design aspects of such a system. Engineering...
We propose in this article a color image segmentation technique based on an optimization of the Mean Shift method. It consists in classifying clusters of data points of a digital image, it does not require any preliminary designation of the number of classes and of their centers. The Mean Shift method applied to a digital color image creates a new image made up of aggregates of points belonging to...
On-chip interconnection networks (OCINs) in many-core systems are key to the system's performance scalability. OCIN design constraints are governed by power, cost, latency, ease of routing, as well as others. As chips with 16 cores are around the corner, we focus on 16-core systems and consider 9 OCINs for 16-core MPSoCs. A key requirement of real time embedded systems is dependable timeliness. This...
The paper deals with how a developing country like Iran can prevent socio-economic impacts of demographic and disability transition. This period started between 1991 and 1996 with a rapid decline of fertility and mortality rates and still continues today. This demographic stage constitutes the window or bonus of the best opportunity for Iranian policy makers to do their plan for rapid aging of population...
Recently many countries have kept studying on the methods of constructing ultra speed networks. Task Force team for IEEE 802.3ah has accomplished the standardization of EPON which is the next generation subscriber access network. EPON doesn't still have the bandwidth wide enough to support the new service which demands high bandwidth. Therefore 10 G EPON is the next generation subscriber access network...
In ubiquitous environments, there are a huge number of computer nodes which provide a lot of information services via the Internet. Therefore, a secure communication system is required for ubiquitous environments. In this paper, we propose a new architecture of distributed public key infrastructure, named as Hash-based Distributed Public Key Infrastructure (HDPKI). A HDPKI system achieves a scalable...
In public display systems determine what to present and when is a central feature. Although several adaptive scheduling alternatives have been explored, which introduce sensibility of the display to some type of external variable, they are still very dependent on the user in their behavior, content specific in their nature and very rigid in their adaptation to their social environment, not providing...
The cloud paradigm appeared on the computing scene in 2005 with the Amazon Elastic Compute Cloud (EC2). After this date, a large set of related technologies has been developed. In the academic world, and especially in the HPC area, cloud computing is in some way in competition with the GRID model, which offers a middleware based approach. One of the solutions proposed is the integration of the two...
Component's QoS constraints cannot be ignored when composing them to build reliable loosely-coupled, distributed systems. Therefore they should be explicitly taken into account in any formal model for component-based development. Such is the purpose of this paper: to extend a calculus of component composition to deal, in an effective way, with QoS constraints. Particular emphasis is put on how the...
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