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1.
魏寒柏  胡克 《数学杂志》1995,15(4):436-440
本文研究了具有最大增长方向的面积平均P叶函数的渐近性质和最大增长方向的唯一性,推广并改进了I.M.Milin的一个结果。  相似文献   

2.
(h,ψ)-广义切导数与最优性条件   总被引:1,自引:0,他引:1  
借助于Ben-Tal广义代数运算定义了广义(h,ψ)-Clarke切锥、广义(h,ψ)-邻接切锥和广义(h,ψ)-伴随切锥,由此定义了广义(h,ψ)-Clarke方向导数、广义(h,ψ)-邻接方向导数、广义(h,ψ)-伴随方向导数及(h,ψ)-广义梯度,由此给出了具有(h,ψ)-凸性的的实值函数最优解的判别条件,文章是Ben-Bal代数在凸分析理论中的应用,所有结果和所用方法可以应用于多目标优化的研究。  相似文献   

3.
关于计算机试验的设计理想和数据分析   总被引:8,自引:2,他引:6  
近些年来,计算机试验的设计和分析作为试验设计的一个新的研究方向,被广泛地展开讨论,出现大量的文章,本文介绍近几年来这个方向的研究动态,包括问题提出,建模和预测,最优设计准则,设计和抽样方法,参数估计和算法,Bayes方法,Maximin和Minimax距离设计以及其他问题,也包括本文作者的若干结果。  相似文献   

4.
时滞分布参数系统的研究进展   总被引:2,自引:0,他引:2  
本文对时滞分布参数系统的研究情况进行了综述,讨论了进一步研究的方向。  相似文献   

5.
本文用Ekeland,L变分原理及分析中的几何方法研究了抽象的广义方向导数和广义梯度中的切锥包含问题,给出了一个切锥包含定理.  相似文献   

6.
孟志青  唐勇 《应用数学》1998,11(4):99-101
本文引进了拓扑向量空中集值函数的一种新的广义次方向导数和广义微分,研究了它们的存在性。  相似文献   

7.
本文研究了一般的二阶椭圆问题的混合元方向交替法,给出了两种迭代格式即Uzawa格式和Arrow-Hurwitz格式,并就系数是常数的情形给出了谱分析.本文的结果对油藏模拟有一定的理论和实际意义.  相似文献   

8.
王先甲  王秋庭 《数学杂志》1995,15(4):530-538
参数规划的极值函数一般是非可微的且没有显示表示。为了讨论极值函数的变化性质,研究其方向导数有重要作用。本文对两类非可微函数(凸函数和拟可微函数)构成的参数规划问题的极值函数,给出了其普通方向导数的等式表示。  相似文献   

9.
书评:虽然我国已出版了一批关于随机过程的专著或教科书。但是这些教科书主要是为研究概率论或随机过程方向的研究生所写的,主要的兴趣是数学体系的完整和为未来的对随机过程本身或更深入的数学研究打下基础。然而,对于那些非纯粹数学方向的学生和理论与实际工作者来说,这些书的内容过深,太专门,起点也比较高,但范围又相对较窄,不很适用。从另一方面来说,即使概率论方向的纯数学研究生也需要一本开拓视野,启发思维的简明扼要的随机过程教科书。美国加利福尼亚大学伯克莱分校应用概率专家,著名教授SMRoss所写的“随机过…  相似文献   

10.
在对知识联盟中知识转移和知识创造过程分析的基础上,本文构造了一个基于吸收能力和知识透明性的知识联盟动态博弈模型,分析了吸收能力和知识透明程度对参与组织决策和利润的重要作用。最后给出了进一步研究的方向。  相似文献   

11.
This paper is concerned with some fundamental aspects of the process of transfer of operational research from the industrialized countries to the Third World. Two complementary conceptions of operational research are identified: technical and social operational research. The main contribution of this paper is to regard the discussion of operational research for developing countries as a case of transfer of technology. Finally, some proposals for action and further research will be briefly outlined.  相似文献   

12.
基于成果转化贡献的科研团队成员收益分配研究   总被引:1,自引:0,他引:1       下载免费PDF全文
促进科技成果转化是我国深化科技体制改革的重要内容,是科技成果转化为现实生产力的关键环节,是实施创新驱动发展战略的根本要求。科研团队成员作为企业科技创新活动的主体,让其参与成果转化收益的分配,有利于调动其科技创新与成果转化的积极性。本文通过理论分析,采用主成分分析法和关键绩效指标法,研究科研团队成员在成果转化阶段的贡献的关键指标、权重及量表,构建收益分配模型。研究结论为完善科技成果转化各利益相关者的激励机制提供了理论依据。  相似文献   

13.
Copula方法与相依违约研究   总被引:1,自引:0,他引:1  
目前信用风险研究的重点已经从单笔债务的违约概率研究转移到多笔债务的相依违约(Dependent Defaults)研究。Copula方法是研究相依违约的重要方法。这种方法是最近几年才被应用到信用领域研究中的一种新方法。本结合代表性献对Copula方法在相依违约研究中的应用进行了探讨。探讨的内容包括Copula方法被应用于相依违约研究的原因、该方法对于相依违约建模理论的改进以及在实证应用中使用Copula方法应该注意的问题。  相似文献   

14.
科研团队是国有企业产品创新和技术创新的主体,对掌握核心技术的科研团队实施股权激励成为企业增强其创新活力的有效手段。通过分析国有企业对科研团队股权激励政策及实践现状,在国有企业科研团队已拥有科技成果但尚未产生经济效益的情况下,以科技成果贡献为导向,采用主成分分析法和权值因子法等设计国有企业科研团队的科技成果贡献考核指标、权重及量表,确定科研团队在企业中可获得的股权分配比例。研究结论为国有企业科研团队实施股权激励提供了理论依据。  相似文献   

15.
The generation and processing of research data for modeling and simulation is an important part of the scientific work at WIAS. Together with scientific software it plays an essential role for the transfer of mathematical research results to industry or to other scientific disciplines. In the face of the emerging digital science agenda research data is now more and more recognized as an essential foundation for scientific work. The importance of research data is also emphasized by the recent adoption of the “DFG Guidelines on the Handling of Research Data” by the Deutsche Forschungsgemeinschaft and the Open Data Pilot within the EU Horizon 2020 programme. In this contribution we present our definition of research data in mathematical modeling and simulation and requirements for its management. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)  相似文献   

16.
University education for operational research in Britain is making great and welcome strides forward, but there has been little open discussion of its aims in relation to the advance of the profession. Progress in operational research, and in its application to the really worth-while problems of industry in particular, depends primarily on strengthening the industrial operational research group in its “front line” role. We need a research study of the teaching and practice of industrial operational research, in relation to effectiveness. We need “collaborative” programmes of operational research education in which the university and the industrial operational research group each contribute, in a man's training over a period of years, in the ways in which each is most competent. We need emphasis on “breadth” as well as “depth” in operational research education, and greater attention to the mutual contributions of operational research, teaching and practice, and the teaching and development of management. An impressionist sketch of a programme which might meet these needs is put forward for discussion of principles and feasibility.  相似文献   

17.
The link between standards and research may not be clearcut. However, in this article the authors argue that there is a notable relationship between standards and research, one that is cyclical in nature. Using the standards for school mathematics developed by the National Council of Teachers of Mathematics (NCTM) as a case in point, the authors examine how NCTM's standards have influenced the agenda for mathematics education research and stimulated research on the impact of those standards. In turn, this and other research played a significant role in the development of NCTM's new Principles and Standards for School Mathematics. The authors conclude with a discussion of ways in which the Principles and Standards may continue this cyclical relationship in coming years, potentially promoting investigation of new research areas and systematic research on the impact of standards.  相似文献   

18.
Operations research and data mining already have a long-established common history. Indeed, with the growing size of databases and the amount of data available, data mining has become crucial in modern science and industry. Data mining problems raise interesting challenges for several research domains, and in particular for operations research, as very large search spaces of solutions need to be explored. Hence, many operations research methods have been proposed to deal with such challenging problems. But the relationships between these two domains are not limited to these natural applications of operations research approaches. The counterpart is also important to consider, since data mining approaches have also been applied to improve operations research techniques. The aim of this article is to highlight the interplay between these two research disciplines. A particular emphasis will be placed on the emerging theme of applying multi-objective approaches in this context.  相似文献   

19.
鲁棒投资组合选择优化问题的研究进展   总被引:2,自引:0,他引:2  
对近年来投资组合研究优化研究的热点问题——鲁棒投资组合优化研究的现状和发展趋势作了综述性研究.在投资组合选择优化的均值-方差模型的基础上,回顾了鲁棒投资组合选择优化问题的发展历史;详细地介绍了鲁棒投资组合选择优化的研究热点及国内外研究现状,就鲁棒投资组合选择优化问题的未来发展方向和主要研究内容,提出了新的观点,以期为相关领域的研究工作提供参考依据.  相似文献   

20.
首先阐明了2016年全国研究生数学建模竞赛E题"粮食最低收购价政策问题研究"的研究背景和问题研究的实际意义.接着,针对每一个问题,从研究思路、研究方法、研究结论等方面均作了详细的叙述.最后,对学生论文中出现的问题、难点以及创新性等方面做了点评.  相似文献   

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