At present,the vulnerability research has been the critical content of sustainable scientific study,among which indicator weighting is keystone of research.There are various ways of indicator weighting,whereas some tough conditions are in traditional approaches when they are in use,which is must be to prove that the indicators are independent of each other before use.But as a matter of fact,there will be a mutual influence on each other between the indicators.In order to solve the problem of interrelate between indicators in the evaluation of vulnerability,based on the structural characteristics and application principle of the AHP and ANP,take the case of public disaster vulnerability.On the one hand,the problem of how to handle ANP to deal with the indicators interdependence and feedback in the evaluation of vulnerability assessment is analyzed.On the other hand through the comparison of ANP and AHP,ANP in the right process to highlight the advantages in the indicator weighting.The results show that,the network structure constructed by ANP can solve the problem that the evaluation indicators are not independent,and the weight advantage of ANP is stronger than that of AHP.This indicates that ANP has strong practical application value in the indicator weighting.%当前,脆弱性成为可持续性科学研究的热点问题,指标确权是脆弱性研究的关键.指标确权的方法有多种,传统指标确权方法在使用时有严苛的条件,即使用前需证明指标间相互独立、互不干扰.但在实际情况中指标间必然会出现相互缠绕、互相的影响的情况.为解决指标赋权时指标间相互缠绕的问题,在对层次分析法(AHP)和网络分析法(ANP)结构特征及应用原理进行分析的基础上,以民众灾害脆弱性为例,一方面对如何运用网络分析法正确处理指标间相互依存及自我回馈的问题进行分析;另一方面通过对比网络分析法与层次分析法获取指标权重的过程及结果突显网络分析法在确权问题中的优势.结果表明:网络分析法构建的网络结构能较好解决评估指标间不独立的问题;同时,网络分析法获取的权重优势度强于层次分析法.这说明,网络分析法在脆弱性评估中指标确权的实用性更强.
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