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In cloud environments, trust is necessary because services have the characteristics of uncertainty, dynamic, false or fraudulent which usually make users difficult to obtain desired services. In this paper, we consider trust-oriented workflow scheduling with temporal constraints including service setup times and workflow deadlines. The considered problem is mathematically modeled. A behavior-based...
The emergence of MapReduce, a simple software framework, is helping to deal with vast amount of data (multiterabyte data-sets) in-parallel on large clusters (thousands of nodes) of commodity hardware in a reliable, fault-tolerant manner. Extensive researches and popularity are gained by MapReduce recently. In this paper, we consider the MapReduce task scheduling problem with security and outage constraints,...
Peak-shaving and valley-filling are important respects while making a scheduling plan, especially faced with the situation when Ultra-High Voltage (UHV) is introduced into the grid. With the target for calculating the cost and effectiveness of different peaking strategies continuously rather than only at the optimal point, this paper proposes an improved peaking model. The values of the objectives...
Day-ahead optimal scheduling is a crucial problem for power system operation. With the fast development of modern power system, power diversification and increasingly high demand of security are calling for new considerations in the research of this area. It is necessary to schedule multi power supplies jointly and optimally under possible contingencies, thus to ensure the safety and economic operation...
It is difficult to improve the performance for the traditional processor architecture. The power consumption and the temperature of the processors are the main bottlenecks for CPU with single core. Chip multiprocessor is proposed to solve such problems. In order to solve the communication problem between the on chip components, network on chip is taken as the promising diagram. The on-chip cores are...
More and more cores are integrated onto a single chip to improve the performance and reduce the power consumption of CPU without the increased frequency. The core are connected by lines and organized as a network, which is called network on chip (NOC) as the promising paradigm. NOC has improved the performance of the CPU without the increased power consumption. However, there is still a new problem...
With the development of control theory and communication technology, networked control systems(NCSs) have received more and more attention. The network that is introduced into the control systems produces some issues, such as network-induced delays, data packets dropout, network resources competition and so on. In this paper, we focus on the network-induced delays. However, the closed-loop control...
With the development of the semiconductor industry, more processors can be integrated onto a single chip. Network-on-Chip (NoC) is an efficient solution for the interconnections on chip for many-core system with many processor cores on chip. However, enhancing performance with lower power consumption is still a challenge. The core issue is the mapping of applications to NoC. A common method is to...
A new dynamic voltage scaling (DVS) approach to schedule sporadic, hard real-time tasks with shared resource in a power saving way is proposed. Although DVS algorithms have been recognized as a feasible solution to save energy, the scheduling of such tasks has not been fully explored. Thus, in the paper, the problem of power-saving scheduling for sporadic tasks that share a set of serially reusable,...
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