随着应用需求的发展,航电系统建设的体系特征日益明显,开展航电系统体系贡献率评估成为引导其迭代更新与优化设计的关键。针对专家知识随时间积累以及蜂群、协同等作战场景变化带来的指标体系权重演化问题,提出了一种适用于航电系统体...随着应用需求的发展,航电系统建设的体系特征日益明显,开展航电系统体系贡献率评估成为引导其迭代更新与优化设计的关键。针对专家知识随时间积累以及蜂群、协同等作战场景变化带来的指标体系权重演化问题,提出了一种适用于航电系统体系贡献率多阶段评估的动态综合方法。基于航电系统任务能力要素,构建了体系贡献率评估指标体系,并应用粒子群优化算法实现了有效评估阶段的时间加权。与传统静态单次评估、基于熵权法(entropy weight method,EWM)的动态评估以及逼近理想解排序法(technique for order preference by similarity to an ideal solution,TOPSIS)的动态评比等对比,所提方法充分体现权重分配信息并统筹兼顾阶段时序差异,能够更准确地反映指标贡献权重和能力贡献分布等评估结果,从而为航电系统发展论证提供更可靠和更灵活的决策方法支持。展开更多
We propose a weighted clique network evolution model, which expands continuously by the addition of a new clique （maximal complete sub-graph） at. each time step. And the cliques in the network overlap with each othe...We propose a weighted clique network evolution model, which expands continuously by the addition of a new clique （maximal complete sub-graph） at. each time step. And the cliques in the network overlap with each other. The structural expansion of the weighted clique network is combined with the edges＇ weight and vertices＇ strengths dynamical evolution. The model is based on a weight-driven dynamics and a weights＇ enhancement mechanism combining with the network growth. We study the network properties, which include the distribution of vertices＇ strength and the distribution o~ edges＇ weight, and find that both the distributions follow the scale-free distribution. At the same time, we also find that the relationship between strength and degree of a vertex are linear correlation during the growth of the network. On the basis of mean-field theory, we study the weighted network model and prove that both vertices＇ strength and edges＇ weight of this model follow the scale-free distribution. And we exploit an algorithm to forecast the network dynamics, which can be used to reckon the distributions and the corresponding scaling exponents. Furthermore, we observe that mean-field based theoretic results are consistent with the statistical data of the model, which denotes the theoretical result in this paper is effective.展开更多
文摘随着应用需求的发展,航电系统建设的体系特征日益明显,开展航电系统体系贡献率评估成为引导其迭代更新与优化设计的关键。针对专家知识随时间积累以及蜂群、协同等作战场景变化带来的指标体系权重演化问题,提出了一种适用于航电系统体系贡献率多阶段评估的动态综合方法。基于航电系统任务能力要素,构建了体系贡献率评估指标体系,并应用粒子群优化算法实现了有效评估阶段的时间加权。与传统静态单次评估、基于熵权法(entropy weight method,EWM)的动态评估以及逼近理想解排序法(technique for order preference by similarity to an ideal solution,TOPSIS)的动态评比等对比,所提方法充分体现权重分配信息并统筹兼顾阶段时序差异,能够更准确地反映指标贡献权重和能力贡献分布等评估结果,从而为航电系统发展论证提供更可靠和更灵活的决策方法支持。
基金Supported by National Natural Science Foundation of China under Grant Nos. 60504027 and 60874080the Open Project of State Key Lab of Industrial Control Technology under Grant No. ICT1107
文摘We propose a weighted clique network evolution model, which expands continuously by the addition of a new clique （maximal complete sub-graph） at. each time step. And the cliques in the network overlap with each other. The structural expansion of the weighted clique network is combined with the edges＇ weight and vertices＇ strengths dynamical evolution. The model is based on a weight-driven dynamics and a weights＇ enhancement mechanism combining with the network growth. We study the network properties, which include the distribution of vertices＇ strength and the distribution o~ edges＇ weight, and find that both the distributions follow the scale-free distribution. At the same time, we also find that the relationship between strength and degree of a vertex are linear correlation during the growth of the network. On the basis of mean-field theory, we study the weighted network model and prove that both vertices＇ strength and edges＇ weight of this model follow the scale-free distribution. And we exploit an algorithm to forecast the network dynamics, which can be used to reckon the distributions and the corresponding scaling exponents. Furthermore, we observe that mean-field based theoretic results are consistent with the statistical data of the model, which denotes the theoretical result in this paper is effective.
