基于復(fù)雜網(wǎng)絡(luò)的串聯(lián)式項(xiàng)目群結(jié)構(gòu)脆弱性分析

摘要： 運(yùn)用復(fù)雜網(wǎng)絡(luò)理論研究串聯(lián)式項(xiàng)目群的結(jié)構(gòu)脆弱性。首先,基于串聯(lián)式項(xiàng)目群的拓?fù)浣Y(jié)構(gòu)及特征,將串聯(lián)式項(xiàng)目群抽象為一個(gè)有向加權(quán)網(wǎng)絡(luò)。繼而運(yùn)用網(wǎng)絡(luò)指標(biāo)評(píng)估串聯(lián)式項(xiàng)目群的結(jié)構(gòu)脆弱性,并進(jìn)一步探討了網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)特征與其脆弱性之間的關(guān)系。研究實(shí)現(xiàn)了串聯(lián)式項(xiàng)目群結(jié)構(gòu)脆弱性的定量化評(píng)估,能夠有效識(shí)別項(xiàng)目群中存在的薄弱環(huán)節(jié),且相關(guān)分析表明節(jié)點(diǎn)中心性指標(biāo)能夠?yàn)殛P(guān)鍵節(jié)點(diǎn)的識(shí)別提供參考。本研究對(duì)于優(yōu)化項(xiàng)目群結(jié)構(gòu)、提高項(xiàng)目群的抗風(fēng)險(xiǎn)能力和保障其順利實(shí)施具有重要啟示。
The structural vulnerability of series type program was studied using complex network theory in this paper.The series type program was first abstracted as a weighted directed network,after which network metrics were adapted to assess the structural vulnerability of series type program.And the possible associations between the topological structure properties and vulnerability were then explored through correlation analysis.This paper realized the quantitative evaluation of the structural vulnerability of series type program,and the identification of the inherent weaknesses.It was also found that the node centrality measures could be used to identify the critical nodes.This study has an important enlightenment for optimizing the program′s structure,improving its capability of resisting risks and ensuring its smooth implementation.