1. 新疆公安厅特别侦察队,新疆 乌鲁木齐 830000
2. 国家计算机网络应急技术处理协调中心,北京 100029
[ "张辉(1979-),女,河南镇平人,硕士,新疆公安厅特别侦察队技术八级工程师,主要研究方向为网络与信息安全、网络侦察技术。" ]
[ "刘成(1985-),男,湖南邵阳人,博士,国家计算机网络应急技术处理协调中心高级工程师,主要研究方向为网络与信息安全、网络攻防技术。" ]
网络首发:2016-08,
纸质出版:2016-08-15
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张辉, 刘成. 基于改进的SVM方法的异常检测研究[J]. 网络与信息安全学报, 2016,2(8):68-73.
Hui ZHANG, Cheng LIU. Anomaly intrusion detection based on modified SVM[J]. Journal of network and information security, 2016, 2(8): 68-73.
张辉, 刘成. 基于改进的SVM方法的异常检测研究[J]. 网络与信息安全学报, 2016,2(8):68-73. DOI: 10.11959/j.issn.2096-109x.2016.00092.
Hui ZHANG, Cheng LIU. Anomaly intrusion detection based on modified SVM[J]. Journal of network and information security, 2016, 2(8): 68-73. DOI: 10.11959/j.issn.2096-109x.2016.00092.
利用非参数检验的方法提取出对分类结果影响显著的特征变量,提出一种改进的 SVM多分类方法(D-SVM),其融合了判别分析,可以解决样本不均衡导致的分类不准确和误报率高的问题。将多分类问题处理成一个个二分类问题,D-SVM既可以保持SVM较好的分类准确性,同时又可以不受样本不均衡的影响,具有较低的误报率。将 D-SVM 应用到 KDD99数据集,结果表明,该方法具有较高的分类准确性和较低的误报率。
A modified SVM multi-classification algorithm integrated with discriminant analysis (D-SVM) was pro-posed
which could solve the problem of low detection accuracy and high false alarm rate caused by unbalanced datasets.For a multi-classification problem could be divided into several binary classification problems
D-SVM could not only have the virtue of high detection accuracy
but also have a low false alarm rate even confronted with unbalanced datasets.Experiments based on KDD99 dataset verify the feasibility and validity of the integrated ap-proach.Results show that when confronted with multi-classification problems
D-SVM could achieve a high detec-tion accuracy and low false alarm rate even when SVM alone fails because of the unbalanced datasets.
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