针对阵地建设安装工程安全风险评估的问题,依据证据推理算法,提出一种阵地建设安装工程安全风险评估方法。将安全风险影响因素逐级分解至指标层,并对指标间的相关关系进行梳理,构建阵地建设安装工程安全风险评估指标体系,根据风险评估结...针对阵地建设安装工程安全风险评估的问题,依据证据推理算法,提出一种阵地建设安装工程安全风险评估方法。将安全风险影响因素逐级分解至指标层,并对指标间的相关关系进行梳理,构建阵地建设安装工程安全风险评估指标体系,根据风险评估结果,运用RIMER(belief rule base inference methodology using evidential reasoning)方法解决底层输入指标类型多样、评估信息不完全问题。实例分析结果表明:该方法具有较好的解释性和可追溯性,对于土建工程和阵地管理中的安全工作具有一定的借鉴意义。展开更多
In order to protect the website and assess the security risk of website, a novel website security risk assessment method is proposed based on the improved Bayesian attack graph(I-BAG) model. First, the Improved Bayesi...In order to protect the website and assess the security risk of website, a novel website security risk assessment method is proposed based on the improved Bayesian attack graph(I-BAG) model. First, the Improved Bayesian attack graph model is established, which takes attack benefits and threat factors into consideration. Compared with the existing attack graph models, it can better describe the website's security risk. Then, the improved Bayesian attack graph is constructed with optimized website attack graph, attack benefit nodes, threat factor nodes and the local conditional probability distribution of each node, which is calculated accordingly. Finally, website's attack probability and risk value are calculated on the level of nodes, hosts and the whole website separately. The experimental results demonstrate that the risk evaluating method based on I-BAG model proposed is a effective way for assessing the website security risk.展开更多
文摘针对阵地建设安装工程安全风险评估的问题,依据证据推理算法,提出一种阵地建设安装工程安全风险评估方法。将安全风险影响因素逐级分解至指标层,并对指标间的相关关系进行梳理,构建阵地建设安装工程安全风险评估指标体系,根据风险评估结果,运用RIMER(belief rule base inference methodology using evidential reasoning)方法解决底层输入指标类型多样、评估信息不完全问题。实例分析结果表明:该方法具有较好的解释性和可追溯性,对于土建工程和阵地管理中的安全工作具有一定的借鉴意义。
基金supported by the project of the State Key Program of National Natural Science Foundation of China (No. 90818021)supported by a grant from the national high technology research and development program of China (863program) (No.2012AA012903)
文摘In order to protect the website and assess the security risk of website, a novel website security risk assessment method is proposed based on the improved Bayesian attack graph(I-BAG) model. First, the Improved Bayesian attack graph model is established, which takes attack benefits and threat factors into consideration. Compared with the existing attack graph models, it can better describe the website's security risk. Then, the improved Bayesian attack graph is constructed with optimized website attack graph, attack benefit nodes, threat factor nodes and the local conditional probability distribution of each node, which is calculated accordingly. Finally, website's attack probability and risk value are calculated on the level of nodes, hosts and the whole website separately. The experimental results demonstrate that the risk evaluating method based on I-BAG model proposed is a effective way for assessing the website security risk.
