共查询到20条相似文献,搜索用时 142 毫秒
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有效的web日志数据挖掘,可为网站经营决策提供客观可信的数据支撑。为实现门户网站的精准运营、业务优化和流量提升,建立基于Web日志的门户流量分析系统。该系统包含基础流量分析、用户访问行为分析、辅助运营分析、多维流量分析等模块,具有数据采集、数据建模、数据查询、数据报表、数据备份等功能,可以从多个纬度掌握门户网站的数据流量。经黑龙江信息港的运行实践表明,该门户流量分析系统为网站运营管理者掌握用户属性、了解用户需求导向,提供了可信、有力的数据支撑,具有应用价值。 相似文献
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高速网络中基于特定业务流的流量测量方法研究 总被引:3,自引:0,他引:3
介绍了目前国内外对高速网络进行流量测量采用的几种主要方法一标识大流法、修改网络协议栈法、抽样法和高性能硬件法,同时讨论了它们各自的不足,并分析了RPC2722测量方法在高速网络中存在的主要问题。针对这些问题,提出了一种基于特定业务流的流量测量方法.这种方法的关键在于设计一个高速流匹配算法和设计测量数据在内存的存储方法。论文提出的多阶段无冲突散列归并(MIPNCHM)流匹配算法,匹配速度可达2Mpps,内存消耗低。论文还提出了测量数据在内存记录和卸出的方法,可实现测量数据按分钟卸出,而时间粒度保持在秒。 相似文献
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软件定义网络(SDN)控制器系统是整个网络的大脑,为了降低控制器单点故障造成的影响,设计了一种简单可靠且可用性更强的主从分布式系统和基于优先级及非抢占的主从选举算法,选举过程不再受限于健康节点数量;简化了Raft算法日志复制系统,设计了一套简单高效的主从增量/全量数据复制流程;结合数据持久化存储及恢复功能,实现系统重启... 相似文献
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基于混沌理论与改进回声状态网络的网络流量多步预测 总被引:2,自引:0,他引:2
网络流量预测是网络管理及网络拥塞控制的重要问题,针对该问题提出一种基于混沌理论与改进回声状态网络的网络流量预测方法。首先利用0-1混沌测试法与最大Lyapunov指数法对不同时间尺度下的网络流量样本数据进行分析,确定网络流量在不同时间尺度下都具有混沌特性。将相空间重构技术引入网络流量预测,通过C-C方法确定延迟时间,G-P算法确定嵌入维数。对网络流量时间序列进行相空间重构之后,利用一种改进的回声状态网络进行网络流量的多步预测。提出一种改进的和声搜索优化算法对回声状态网络的相关参数进行优化以提高预测精度。利用网络流量的公共数据集以及实际数据进行了仿真,结果表明,提出的预测方法具有更高的预测精度以及更小的预测误差。 相似文献
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In response to the HTTP malicious traffic detection problem,a preprocessing method based on cutting mechanism and statistical association was proposed to perform statistical information correlation as well as normalization processing of traffic.Then,a hybrid neural network was proposed based on the combination of raw data and empirical feature engineering.It combined convolutional neural network (CNN) and multilayer perceptron (MLP) to process text and statistical information.The effect of the model was significantly improved compared with traditional machine learning algorithms (e.g.,SVM).The F1value reached 99.38% and had a lower time complexity.At the same time,a data set consisting of more than 450 000 malicious traffic and more than 20 million non-malicious traffic was created.In addition,prototype system based on model was designed with detection precision of 98.1%~99.99% and recall rate of 97.2%~99.5%.The application is excellent in real network environment. 相似文献
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Network traffic classification method basing on CNN 总被引:1,自引:0,他引:1
Since the feature selection process will directly affect the accuracy of the traffic classification based on the traditional machine learning method,a traffic classification algorithm based on convolution neural network was tailored.First,the min-max normalization method was utilized to process the traffic data and map them into gray images,which would be used as the input data of convolution neural network to realize the independent feature learning.Then,an improved structure of the classical convolution neural network was proposed,and the parameters of the feature map and the full connection layer were designed to select the optimal classification model to realize the traffic classification.The tailored method can improve the classification accuracy without the complex operation of the network traffic.A series of simulation test results with the public data sets and real data sets show that compared with the traditional classification methods,the tailored convolution neural network traffic classification method can improve the accuracy and reduce the time of classification. 相似文献
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In order to cope with the traffic management for multi-service differentiated in cloud data centers,improving network performance and service experience,the multi-service differentiated (MSD) traffic management model was designed that can suit operational requirements in cloud data center.Fibonacci tree optimization (FTO) algorithm was improved according to the MSD model.MSD-FTO traffic management strategy was proposed in SDN cloud data center.Simulation results show that the strategy takes advantage of FTO global optimization ability and multi-modal adaptive performance.Through the global local alternating optimization of the algorithm,differentiation traffic management schemes are obtained as needed,the problem of multi-services differentiated traffic management is solved in operator cloud data center that improve network performance and service experience in cloud data center effectively. 相似文献
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为了实现对长期演进(Long Term Evolution,LTE)网络的业务识别,分析了S1接口用户面协议栈,利用模块化设计思想实现了对S1接口流量的业务识别.针对传统业务识别系统识别度低、统计能力不强的缺陷,在传统的业务识别系统基础上,提出了一个多识别的业务识别方案,实现了对业务类型的精确识别.经过现网数据测试验证,所设计的多识别的业务识别方案达到了预期的效果,在LTE移动通信网络业务识别领域具有推广意义. 相似文献
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以BitTorrent为代表的P2P应用流量已占据电信运营商网络流量的60%以上,由于BitTorrent客户端主要依据上传速度来选择传输节点,并不能检测到同一区域网络中存在具有相同数据的客户端,导致经常出现通过网间路由器的重复流量,降低了带宽的使用效率。提出通过设置透明的代理tracker服务器和设立分布式的peer缓存管理系统,使得将BitTorrent流量尽量控制在区域网络范围内,减少通过骨干路由的流量,同时使得BitTorrent客户端也能得到更快速的下载。 相似文献
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网络时延是评估网络性能的关键指标之一。主成分分析(PCA)是数据挖掘领域常用的一种多变量分析和降维算法。通过对大型IP网络时延进行PCA分析,旨在挖掘网络时延的深层原因及网络各节点间的相互依赖关系,并搭建一个科学合理的网络时延评价体系,最终得到IP网络建设、优化改造的有效建议。对历史网络时延进行离线分析只是主成分分析方法的一种初步应用,今后可结合网络拓扑结构、现网流量流向、路由、距离等相关因素,将主成分分析方法应用到针对网络流量、网络时延、网络丢包等网络性能的实时在线监测分析中,进一步提升网络运营的效率和质量。 相似文献