A New Sketch Method for Measuring Host Connection Degree Distribution
A New Sketch Method for Measuring Host Connection Degree Distribution
复制标题
测量主机连接度分布的新草图方法
DOI:
10.1109/tifs.2014.2312544
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发表时间:
2014-06
影响因子:
6.8
通讯作者:
Qin Tao
中科院分区:
文献类型:
--
作者:
Wang Pinghui;Guan Xiaohong;Zhao Junzhou;Tao Jing;Qin Tao
The host connection degree distribution (HCDD) is an important metric for network security monitoring. However, it is difficult to accurately obtain the HCDD in real time for high-speed links with a massive amount of traffic data. In this paper, we propose a new sketch method to build a probabilistic traffic summary of a host's flows using a uniform Flajolet-Martin sketch combined with a small bitmap. To study its performance in comparison with previous sampling and sketch methods, we present a general model that encompasses all these methods. With this model, we compute the Cramér-Rao lower bounds and the variances of HCDD estimations. The theoretic analysis and numerical experimental results show that our sketch method is six times more accurate than state-of-the-art methods with the same memory usage.
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DOI:
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发表时间:
2013-04
期刊:
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影响因子:
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DOI:
10.1145/773153.773182
发表时间:
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期刊:
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发表时间:
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2011 Proceedings IEEE INFOCOM
影响因子:
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发表时间:
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期刊:
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