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The growing P2P streaming traffic brings a variety of problems and challenges to ISP networks and service providers.A P2P streaming traffic classification method based on sampling technology is presented in this paper.By analyzing traffic statistical features and network behavior of P2P streaming,a group of flow characteristics were found,which can make P2P streaming more recognizable among other applications.Attributes from Netflow and those proposed by us are compared in terms of classification accuracy,a... 相似文献
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洞室的围岩压力与洞室的形状、大小是有密切关系的 ,运用有限元法的基本原理 ,采用ANSYS软件对圆形、矩形和拱形洞室的围岩应力状态进行了数值模拟分析。并将其分析结果与规范规定及传统方法的简化公式求得的结果作了比较 ,得出了一些有益的结论 ,同时提出在实际中所需注意的问题 相似文献
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各种形状洞室的围岩压力分析 总被引:2,自引:0,他引:2
洞室的围岩压力与洞室的形状、大小是有密切关系的,运用有限元法的基本原理,采用ANSYS软件对圆形、矩形和拱形洞室的围岩应力状态进行了数值模拟分析。并将其分析结果与规范规定及传统方法的简化公式求得的结果作了比较,得出了一些有益的结论,同时提出在实际中所需注意的问题。 相似文献
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Based on the massive data collected with a passive network monitoring equipment placed in China's backbone, we present a deep insight into the network backbone traffic and evaluate various ways for improving traffic classifying efficiency in this paper. In particular, the study has scrutinized the network traffic in terms of protocol types and signatures, flow length, and port distribution, from which meaningful and interesting insights on the current Internet of China from the perspective of both the packet and flow levels are derived. We show that the classification efficiency can be greatly improved by using the information of preferred ports of the network applications. Quantitatively, we find two traffic duration thresholds, with which 40% of TCP flows and 70% of UDP flows can be excluded from classification processing while the impact on classification accuracy is trivial, i.e., the classification accuracy can still reach a high level by saving 85% of the resources. 相似文献
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基于Web-LogMining寻找目标网页最优期望定位 总被引:1,自引:0,他引:1
为了优化网站的访问效能,实现网站实际结构与用户的使用行为相吻合,该文主要应用Web挖掘技术,以网站的服务器Web日志作为数据源,使用算法FEL和算法CRLL从用户访问事务序列中寻找目标网页的期望定位,并以最少“后退”次数为原则生成推荐链接列表。网站设计者可根据该列表,修改网页之间的链接关系,达到减少对目标网页搜索时间的目的。 相似文献