| 基于文件内外访问倾向性的流调度策略 |
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| 作者单位： | 大连交通大学软件学院 辽宁大连116028(梁旭，黄祥书)，中国人寿保险新疆分公司 新疆830002(王玮) |
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| 摘 要： | 提出了一种网上教学平台上基于文件内外访问倾向性的视频流调度策略.描述了系统架构、存储策略、调度策略与算法.通过对现有流调度算法的研究,结合视频文件内外访问倾向性,提出了一种新的流调度算法.理论分析和仿真实验表明:该算法可有效提高系统吞吐量和热门影片的命中率,降低系统平均等待时间.
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| 关 键 词： | 内部访问倾向性 外部访问倾向性 存储策略 调度策略 |
A Delivery Algorithm Based on Intra-Video and Extra-Video Tendentiousness |
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| Authors: | LIANG Xu HUANG Xiang-shu WANG Wei |
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| Abstract: | This paper studied the characteristics of the intra-video and extra-video tendentiousness.Through a deep research on streaming delivery algorithm,we present a novel streaming delivery algorithm.This new method allows every client that request the same video to share a channel,so it can supply instantaneous video-on-demand services.The experimental results show that the proposed algorithm is effective in refusal-ratio,the average waiting-time and the hit probability of the hot movies. |
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| Keywords: | intra-video tendentiousness extra-video tendentiousness scheduling algorithm placement policy |
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