| eMule系统中的非均匀性分布 |
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| 引用本文： | 蒋君,邓倩妮.eMule系统中的非均匀性分布[J].微电子学与计算机,2007,24(10):153-156. |
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| 作者姓名： | 蒋君 邓倩妮 |
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| 作者单位： | 上海交通大学,计算机科学与技术系,上海,200240 |
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| 摘 要： | eMule是一款流行的P2P软件,它拥有大量的用户。通过eMule中的KAD覆盖网络开发了一个爬虫,抓取了eMule系统中的节点信息。发现eMule系统中资源分布得非常不均匀,如节点所处的地区分布不均匀,IP分布不均匀,文件的副本数分布不均匀,用户共享的文件数分布也不均匀。文件的副本数分布和用户共享的文件数分布基本符合Zipf分布,但是这两个分布并不完全符合Zipf,有着自己独特的特性。
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| 关 键 词： | 抓取 非均匀 |
| 文章编号： | 1000-7180（2007）10-0153-04 |
| 修稿时间： | 2007-06-02 |
The Non-Uniform Distribution in eMule System |
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| JIANG Jun,DENG Qian-ni.The Non-Uniform Distribution in eMule System[J].Microelectronics & Computer,2007,24(10):153-156. |
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| Authors: | JIANG Jun DENG Qian-ni |
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| Affiliation: | Department of Computer Science and Technology, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | eMule is a popular P2P file sharing software, which owns millions of users. We developed a Crawler through the KAD overlay network, and crawls down the nodes' information. We discovered the non-uniform distribution of the eMule system in many aspects, such as the regions the nodes in, the IP addresses, the copies of different files and the amount of files each user shares. And we also find the distribution of the copies of different files and the distribution of the amount of files each user shares mainly conform to the Zipf distribution. Besides we find the difference between the two distributions and Zipf, and we analyze the reason why the difference occurs. |
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| Keywords: | eMule KAD Zipf |
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