网络通信系统的信息脆性风险评估

Evaluation of information brittleness risk in networkcommunication system

提出了一种基于脆性风险熵的网络通信系统信息脆性风险评估模型。脆性风险熵是衡量通信系统在某一时刻的脆性风险,即崩溃可能的不确定性的测度,反映了对系统的脆性风险的总体预测和把握的能力。基于脆性风险熵建立了信息脆性评估体系,且采用模糊推理方法,结合专家的经验,由脆性风险熵和风险熵变化率推理出衡量系统信息脆性风险的脆性度,反映了网络通信系统信息脆性风险的变化趋势,为决策人员提供了依据和支持,为系统下阶段的需求分析提供客观准确的数据。以一个具体网络测试系统为例说明此方法的先进性和有效性。

An information brittleness risk evaluation model of communication network system is presented based on brittleness risk entropy. The brittleness risk entropy is a measurement of the brittleness risk in communication system at a moment, ie an indeterminacy measurement of collapse probability, which can reflect the capability of forecasting and controlling the system brittleness risk. The information brittleness evaluation system is founded based on brittleness risk entropy. By using fuzzy deduction method and com- bined with the experience of experts, the brittleness of information system risk can be deducted from the brittleness risk entropy and its change rate, which can reflect the changing tendency of the information brittleness risk in a network communication system and can provide basis and support for decision-mak- ing, also objective and accurate data for demand analysis of next phase system. As an example, the test of a specific network system shows the advancement and effectiveness of the method.