Abstract
Network situation awareness (NSA) is a new idea of network security, it is different from normal network security technique for its visualization and high-level data management, transform the abstract data to knowledge that human can understand, help network manager to make decision. Present NSA model have some weakness donpsilat fit to network security. This paper promote a improve model of the NSA, add privacy-preserving module, richen the data source, visualization (integrate GIS technique) and projection technique of situation awareness to improve abilities of emergences respond, reduce losses of network attacks, reveal abnormally intrusions.
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