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Data access has become the preeminent performance bottleneck of computing. In this study, a Layered Performance Matching (LPM) model and its associated algorithm are proposed to match the request and reply speed for each layer of a memory hierarchy to improve memory performance. The rationale of LPM is that the performance of each layer of a memory hierarchy should and can be optimized to closely...
The Breadth-First Search (BFS) algorithm serves as the foundation for many graph-processing applications and analytics workloads. While Graphics Processing Unit (GPU) offers massive parallelism, achieving high-performance BFS on GPUs entails efficient scheduling of a large number of GPU threads and effective utilization of GPU memory hierarchy. In this paper, we present Enterprise, a new GPU-based...
In this study, a optimization process was performed for the developed dry electroencephalography (EEG) electrodes by using the Non-dominated Sorting Genetic Algorithm II (NSGA-II) to minima the skin-electrode impedance. The developed dry EEG electrodes can measure the EEG signals without any gels applied and no skin preparation. However, how to find a proper skin-electrode contact area is an important...
In the steering process of loader, the distance of left and right cylinder's stroke and arm is different. It results in the non-constant flow of hydraulic oil, which causes the pressure pulsation in the system, the vibration and shock in the course of steering' as well as energy loss in the process. So we should minimize the distance of cylinder's stroke and arm. This thesis builds the mathematical...
In this paper, the problem of video multicast over a wireless network is studied. A layered hybrid-ARQ scheme is first proposed. It combines hybrid-ARQ with scalable video coding, and provides improved quality of service for video applications with bandwidth or delay constraints. In a wireless multicast group, users often have different channel conditions, whiles the server in the network has to multicast...
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