【摘要】：針對網(wǎng)絡(luò)系統(tǒng)可生存性的有效評估問題,對指標(biāo)體系的構(gòu)建,指標(biāo)賦權(quán)及綜合評估方法進(jìn)行了研究。提出了一種機制關(guān)聯(lián)的網(wǎng)絡(luò)可生存性指標(biāo)體系構(gòu)建方法,從可生存性的4個重要屬性角度構(gòu)建了層次化的指標(biāo)體系,依據(jù)該指標(biāo)體系提出了一種新的組合賦權(quán)方法,由層次分析法計算主觀權(quán)重,粗糙熵方法計算客觀權(quán)重,并給出了關(guān)聯(lián)權(quán)重的概念和計算方法,構(gòu)建離差最小化目標(biāo)優(yōu)化函數(shù)將3種權(quán)重聯(lián)合得到組合權(quán)重,建立了基于隸屬云的模糊綜合評估模型,將隸屬云替代原來的確定性隸屬度函數(shù)。仿真結(jié)果表明,該評估方法可對網(wǎng)絡(luò)系統(tǒng)可生存性進(jìn)行準(zhǔn)確有效的評估。
[Abstract]:Aiming at the effective evaluation of the survivability of network system, this paper studies the construction of index system, index weighting and comprehensive evaluation method. In this paper, a method of constructing network survivability index system based on mechanism correlation is proposed, and a hierarchical index system is constructed from four important attributes of survivability. According to this index system, a new combined weighting method is proposed. The subjective weight is calculated by analytic hierarchy process and objective weight is calculated by rough entropy method. The concept and calculation method of correlation weight are given, and combined weights are obtained by constructing objective optimization function of deviation minimization. The fuzzy comprehensive evaluation model based on membership cloud is established, and the membership cloud is replaced by the original deterministic membership function. Simulation results show that the proposed method can accurately and effectively evaluate the survivability of network systems.
【作者單位】： 空軍工程大學(xué)信息與導(dǎo)航學(xué)院;
【基金】：國家自然科學(xué)基金(61003252) 全軍軍事學(xué)研究生課題(2011JY002-524)資助課題
【分類號】：TP393.06

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