首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 93 毫秒
1.
This paper, based on the study results of a subproject under the Seventh Fiveyear-plan National Major Scientific and Technological Research Project, will concentrate on the application of the mixed integer goal programming in the studies on the optimization and comprehensive evaluation of investment decision and production planning in Yichang phosphate rock district in Hubei Province and in Dianchi district in Yunnan Province. The optimization models for mineral district development planning system are formulated through system analysis. A microcomputer software based on the combination of mixed integer programming and goal programming is developed to continuously implement the calculation for the mathematical model with arbitrary objective priority levels and for a group of such models. And a system economic evaluation model is developed to measure the profitability of optimal planning system scenarios. Finally, a large amount of output information are provided for the reference of decision makers.  相似文献   

2.
In this paper through the comprehensive analysis of the factors of enterprises‘SCM performance, the target system of enterprises‘ SCM performance evaluation is established and the method of fuzzy multiple comprehensive evaluation is proposed. This method converts the complicated problems of SCM into a quantitative evaluation target by using fuzzy synthetic operation so that it can evaluate enterprises‘ SCM performance more scientifically and guide enterprises‘ SCM to work well.  相似文献   

3.
Journal evaluation is a compliated engineering system, how to evaluate academic journals more scientifically in scientific methods have becomes a problem of great concerns. This paper presents attribute mathematical model for comprehensive index system‘ quality evaluation for natural science academic journals, aiming to make comprehensive index system‘ quality evaluation for academic journals more objective and reasonable compared with other quantitative evaluation ways.  相似文献   

4.
Qualitative indices in multi-objective decision can usually be evaluated and measured by mathematical methods or models, but the obtained results are sometimes inaccurate because of fuzziness of indices. To improve the accuracy and reliability of the evaluation results, set-value statistic principle is applied, and accordingly four evaluation methods are obtained. Meanwhile, these methods are compared briefly.  相似文献   

5.
Contemporary system maturity assessment approaches have failed to provide robust quantitative system evaluations resulting in increased program costs and developmental risks.Standard assessment metrics,such as Technology Readiness Levels(TRL),do not sufficiently evaluate increasingly complex systems.The System Readiness Level(SRL)is a newly developed system development metric that is a mathematical function of TRL and Integration Readiness Level(IRL) values for the components and connections of a particular system.SRL acceptance has been hindered because of concerns over SRL mathematical operations that may lead to inaccurate system readiness assessments.These inaccurate system readiness assessments are called readiness reversals.A new SRL calculation method using incidence matrices is proposed to alleviate these mathematical concerns.The presence of SRL readiness reversal is modeled for four SRL calculation methods across several system configurations.Logistic regression analysis demonstrates that the proposed Incidence Matrix SRL(IMSRL)method has a decreased presence of readiness reversal than other approaches suggested in the literature.Viable SRL methods will foster greater SRL adoption by systems engineering professionals and will support system development risk reduction goals.  相似文献   

6.
The Risk Evaluation of the Implement for Enterprise E—Business   总被引:2,自引:0,他引:2  
In this paper, risk evaluation index system of electronic business is put forward for core manufactures. At the same time, risk evaluation method is established on the basis of fuzzy mathematics and grey theory, and its effectiveness and feasibility are tested in the practical example.  相似文献   

7.
Task-oriented networked information system is an integrated information system which builds on multi-satellite networking to accomplish one or more tasks.In the background of emergency relief for applications,system working flow and response process are analyzed,and a timeliness effectiveness evaluation index system is constructed at multi-task level.The effectiveness is a measurement of promptness of information return.In evaluation process,system performance and tasks are associated,then an evaluation model based on efficacy function is established,and different evaluation criteria are selected for different tasks.A distributed simulation system is constructed,and the execution of task is decomposed.The simulation platform provides a comprehensive data source for evaluation.The results are easy to compare with each other,which reflects system time efficiency in different satellites networks and provides actual systems with basis and reference for design and application.  相似文献   

8.
The author uses system analysis to provide system thinkings of the deepening reform of the management of defence science, technology and industry (DSTI) and investigate the system definition of DSTI, the system reform target, system operational mechanism, institutional structure, coordination and control functions and the orientation of conversion in China.  相似文献   

9.
The analysis and evaluation of an actual port system containing R differentship's kinds and N subsystems each of which consists of M.(i=1, 2,…, N) ports arederived. The external arrivals of ships to the system come from R different Poisson sourcesand the interarrivals to the queue of each port of a subsystem are determined according tocondition probabilities. Each port has multiple berths whose service times are distributedaccording to Erlang probability distribution functions. Each port of a subsystem has Rinfinite capacity buffers for storing ships interarrived. This method provides a good approximation procedure for obtaining system perfor-mance measures such as waiting times of ships, average queue lengths, etc. Optimum portcapacity can thus be evaluated by using this analysis. A simulation is also presented totest this approximate analysis, and a good agreement is observed. This model shall be usedin the planning of several actual port systems. Through the application of this model, itis possible to analyze and evaluate performances of the systems.  相似文献   

10.
Based on DAGF Algorithm, an evaluation model about the result of enterprise‘s technological innovation is proposed. Furthermore, establishment of its system of evaluation indicators and DAGF Algorithm are discussed in detail. Besides, the result of the case shows that the model is fit for evaluation of the result of enterprise‘s technological innovation.  相似文献   

11.
随着网络中心战的提出,信息优势在指挥控制系统中的作用日益突出,针对传统指挥控制系统评估指标体系未能很好吸纳信息优势,而导致评估结果与实际结果有偏差的问题,创新性地将信息优势作为一个重要因素纳入评估指标体系,构建了基于信息优势的指挥控制系统评估指标体系,并结合各指标特点建立了典型的、可量化的数学模型。最后,提出了指标体系构建过程中需要注意和把握的要点,并通过实例分析验证了指标体系的可行性及模型的正确性。  相似文献   

12.
多仪表综合显示系统人机界面的虚拟评价研究   总被引:1,自引:0,他引:1  
颜声远  于晓洋  张志俭  彭敏俊  杨明 《系统仿真学报》2007,19(12):2720-2722,2726
提出了多仪表综合显示系统人机界面的动态仿真虚拟评价方法.建立了基于GL Studio的虚拟评价环境.创建了包含动态显示特性的主观评价指标体系.构造了基于灰色关联分析的主观评价数学模型.实现了在设计阶段仿真仪表的实际工况,评价显示设计与操作员主观期望一致性,有效地提高了多仪表综合显示的人因设计质量.  相似文献   

13.
经济系统的经济增长质量分析与评价   总被引:4,自引:0,他引:4  
在研究经济系统内部机理的基础上,揭示了系统的力学性质,建立了外延和内涵扩大再生产与经济系统产出效益关系的数学模型,利用模型对经济系统增长质量分析与评价指标体系的建立作了探索.  相似文献   

14.
运用可靠性理论和数理统计知识来构建内部控制系统评价的数学分析模型,利用该模型可计算程序的可靠度和系统可靠度,从而判断内部控制的效果.通过敏感性分析得到结构重要性和可靠度重要性,据此判断程序可靠性对系统可靠性的影响程度,为内部控制系统改进提供支持.最后,分析了在评价中如何考虑成本的问题,以及参数的估计,这有利于提高模型的完整性和准确性.  相似文献   

15.
组网雷达作战效能模糊综合评定模型   总被引:17,自引:0,他引:17  
随着现代战争向网络中心战转变,雷达组网作战是防空武器系统发展趋势,其作战效能分析可为防空雷达组网提供辅助决策。为了评估组网雷达作战效能,结合雷达组网的因素分析,运用模糊数学的方法,提出了组网雷达作战效能评价指标体系,建立了三级模糊评判模型,并利用层次分析法确定了各因素的权重,提出了组网雷达作战效能的量化评判方法。并对某重点区域防空两种雷达组网方案作战效能进行了模糊综合评判,实例分析结果表明该组网雷达作战效能模糊评判模型具有实用性,其评估结果可为防空雷达组网提供参考。  相似文献   

16.
评价方案优化系统   总被引:15,自引:1,他引:14  
提出了兼容度和差异度的概念,给出了判断评价方案优劣的标准,为此为契机,构建了兼容度极大化和兼容性,差异度极大极小两化两个数学模型,把多种评价方法的特点兼收并蓄,导出了评价方案的择优方法,最后,用系统的观点,设计并实现了一个融评价方案的创新和选优于一个体的评价方案优化系统,并举两个实例阐明其应用。  相似文献   

17.
基于AHP的舰艇模拟训练成绩评估研究   总被引:4,自引:0,他引:4  
从水面舰艇模拟训练系统的需求出发,分析了水面舰艇模拟训练特点,明确舰艇模拟中训练成绩评估要素,建立了成绩评估的指标体系及每个指标的成绩评估数学模型.以水面舰艇模拟训练中某次具体训练为例,用层次分析法来计算出舰艇的综合训练成绩.通过对模拟训练进行合理的评估,能够较好的反应出训练水平.  相似文献   

18.
雷达干扰未确知效果的测度评价研究   总被引:8,自引:1,他引:7  
在未确知数学理论基础上 ,结合电子对抗的特点 ,研究了雷达干扰效果的评价指标体系和度量方法 ,以及如何识别、排序的问题。建立了基于未确知效果测度的雷达干扰效果评价模型 ,并结合有源干扰的一个实例分析 ,获得了较为成功的应用。未确知效果测度评价模型严谨 ,评价结果合理、精细、分辨率高 ,适合于雷达干扰效果的评价  相似文献   

19.
ApplicationofFuzzyMathematicsintheEvaluationofTextbooksininstitutionsofHigherLearning¥LIJianning;YANXianming(shanxiUniversity...  相似文献   

20.
一、引言 管理信息系统的开发是一个系统工程,首先要涉及的是计算机系统,因为计算机系统是管理信息系统的物质基础,能否选择符合要求的计算机系统,是成功地开发管理信息系统的关键之一。要统筹全局,合理选择计算机的型号,以保证管理信息系统各项功能的实现;如果忽视了计算机系统的选型,盲目购进计算机系统,当需求有所变化,必须改动和扩充管理信息系统时,常常遇到困难,甚至竟陷入“削足适履”的难堪局面。 为合理选择计算机系统,要对计算机系统选型方案加以评价。第一步,是粗选机型,用专家会议法  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号