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Presentation Lag Reduction by Scheduling Media Objects for Auto-assembled Multimedia Presentations from Educational Digital Libraries

机译:通过调度来自教育数字图书馆的自动组装的多媒体演示的媒体对象来减少滞后减少

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This study investigates the optimization of the ordering of retrieved media objects from educational multimedia repositories for a continuously-played presentation such that the total presentation lag through a slow network is minimized. We present a computation-efficient NEH-based heuristic algorithm that can obtain a near-optimal solution with minimal computation time. A simulation experiment shows the average gaps between the idle rateof heuristic solutions and randomly generated sequences are around 26.3%. The results indicate the proposed heuristic solution can significantly reduce the presentation lag as compared to a random ordering approach that is commonly applied in conventional multimedia repositories.
机译:本研究调查了从教育多媒体存储库中检索到的媒体对象的顺序的优化,以便连续播放的呈现,使得通过慢速网络的总呈现滞后最小化。我们介绍了一种计算 - 高效的基于NEH的启发式算法,可以获得具有最小计算时间的近最佳解决方案。仿真实验显示了启发式解决方案和随机产生的序列之间的平均间隙约为26.3%。结果表明,与常规多媒体存储库通常应用的随机排序方法相比,所提出的启发式解决方案可以显着降低呈现滞后。

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