基于行为分析的网络流量异常检测是当前网络安全中的热点研究方向，本书基于大数据和图技术，围绕异常行为轮廓构建和网络异常检测及其优化问题涉及的若干个关键技术展开介绍，使读者了解基于大数据技术进行网络流量异常的检测和预警。
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