The command and control(C2) is a decision-making process based on human cognition,which contains operational,physical,and human characteristics,so it takes on uncertainty and complexity.As a decision support approac...The command and control(C2) is a decision-making process based on human cognition,which contains operational,physical,and human characteristics,so it takes on uncertainty and complexity.As a decision support approach,Bayesian networks(BNs) provide a framework in which a decision is made by combining the experts' knowledge and the specific data.In addition,an expert system represented by human cognitive framework is adopted to express the real-time decision-making process of the decision maker.The combination of the Bayesian decision support and human cognitive framework in the C2 of a specific application field is modeled and executed by colored Petri nets(CPNs),and the consequences of execution manifest such combination can perfectly present the decision-making process in C2.展开更多
An approach for modeling a human cognitive framework in time-stressed decision making is presented. The recognitive and metacognitive processes that represent the cognitive framework are modeled by the colored Petri n...An approach for modeling a human cognitive framework in time-stressed decision making is presented. The recognitive and metacognitive processes that represent the cognitive framework are modeled by the colored Petri nets (CPNs). A structural and behavioral analysis method is adopted to obtain the static and dynamic property used to verify the CPNs model of the cognitive framework. Finally, an example from the command and control radar recognition system is used to evaluate the feasibility and availability of the CPNs model adopted in practical systems.展开更多
The view that the traditional method of DSS development is outdated, which results to the diversiform disadvantages of DSS product. Therefore the ideas of application software framework based development to the genera...The view that the traditional method of DSS development is outdated, which results to the diversiform disadvantages of DSS product. Therefore the ideas of application software framework based development to the generation process of DSS is introduced and a modified flow chat of DSS development is proposed. Moreover, a formal description of the DSS software framework and its development is given. The analysis results indicates that not only does the new development flow ensure the DSS development global stability but also improves the software reusability level of the development process.展开更多
针对航班地面保障过程决策能力不足、运行效率低下的问题,提出一种基于国防部体系结构框架(department of defense architecture framework,DoDAF)的航班地面保障过程决策支持模型。从保障作业、保障资源以及二者间关联关系出发,定量描...针对航班地面保障过程决策能力不足、运行效率低下的问题,提出一种基于国防部体系结构框架(department of defense architecture framework,DoDAF)的航班地面保障过程决策支持模型。从保障作业、保障资源以及二者间关联关系出发,定量描述航班地面保障过程,将DoDAF与基于模型的系统工程(model-based systems engineering,MBSE)相结合建立航班地面保障过程决策支持模型,建立决策效用函数,分析航班保障各环节综合保障的效用值。对比实际数据与本文决策支持模型得到的数据,结果表明决策后的撤轮挡时间与目标撤轮档时间的平均绝对误差对比实际撤轮档时间和目标撤轮档时间的平均绝对误差降低1.42 min,均方根误差降低0.95 min,对于不同机型航班,决策后的保障服务时间与计划保障时间相对误差对比决策前分别降低31%、17%和42%,同时可以得到保障时间与保障效用的关系,证明本文提出的决策模型的可行性和有效性。展开更多
基金supported by the National Natural Science Foundation of China (60874068)
文摘The command and control(C2) is a decision-making process based on human cognition,which contains operational,physical,and human characteristics,so it takes on uncertainty and complexity.As a decision support approach,Bayesian networks(BNs) provide a framework in which a decision is made by combining the experts' knowledge and the specific data.In addition,an expert system represented by human cognitive framework is adopted to express the real-time decision-making process of the decision maker.The combination of the Bayesian decision support and human cognitive framework in the C2 of a specific application field is modeled and executed by colored Petri nets(CPNs),and the consequences of execution manifest such combination can perfectly present the decision-making process in C2.
基金supported by the National Natural Science Foundation of China(60874068).
文摘An approach for modeling a human cognitive framework in time-stressed decision making is presented. The recognitive and metacognitive processes that represent the cognitive framework are modeled by the colored Petri nets (CPNs). A structural and behavioral analysis method is adopted to obtain the static and dynamic property used to verify the CPNs model of the cognitive framework. Finally, an example from the command and control radar recognition system is used to evaluate the feasibility and availability of the CPNs model adopted in practical systems.
文摘The view that the traditional method of DSS development is outdated, which results to the diversiform disadvantages of DSS product. Therefore the ideas of application software framework based development to the generation process of DSS is introduced and a modified flow chat of DSS development is proposed. Moreover, a formal description of the DSS software framework and its development is given. The analysis results indicates that not only does the new development flow ensure the DSS development global stability but also improves the software reusability level of the development process.
文摘针对航班地面保障过程决策能力不足、运行效率低下的问题,提出一种基于国防部体系结构框架(department of defense architecture framework,DoDAF)的航班地面保障过程决策支持模型。从保障作业、保障资源以及二者间关联关系出发,定量描述航班地面保障过程,将DoDAF与基于模型的系统工程(model-based systems engineering,MBSE)相结合建立航班地面保障过程决策支持模型,建立决策效用函数,分析航班保障各环节综合保障的效用值。对比实际数据与本文决策支持模型得到的数据,结果表明决策后的撤轮挡时间与目标撤轮档时间的平均绝对误差对比实际撤轮档时间和目标撤轮档时间的平均绝对误差降低1.42 min,均方根误差降低0.95 min,对于不同机型航班,决策后的保障服务时间与计划保障时间相对误差对比决策前分别降低31%、17%和42%,同时可以得到保障时间与保障效用的关系,证明本文提出的决策模型的可行性和有效性。