灰色综合评判的数学模型

灰色综合评判的数学模型高敬振（山东师范大学数学系，济南２５００１４）ＡＭａｔｈｅｍａｔｉｃａｌＭｏｄｅｌｆｏｒＧｒｅｙＣｏｍｐｒｅｈｅｎｉｓｉｖｅＥｖａｌｕａｔｉｏｎＧａｏＪｉｎｇｚｈｅｎ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，Ｓｈａｎｄｏ...     

有关将弱DEA有效性用于预测的探讨

有关将弱ＤＥＡ有效性用于预测的探讨⒇吴文江何静（武汉工业大学北京研究生部，北京１０００２４）ＤｉｓｃｕｓｉｏｎｏｎＵｓｉｎｇＷｅａｋＤＥＡＥｆｉｃｉｅｎｃｙｆｏｒＦｏｒｅｃａｓｔＷｕＷｅｎｊｉａｎｇＨｅＪｉｎｇＡｂｓｔｒａｃｔＴｈｉｓｐａｐｅｒｐｒｅ...     

负熵在图书馆系统中的应用

负熵在图书馆系统中的应用白丽华（北方工业大学图书馆，北京，１０００４１）ＡｐｐｌｉｃａｔｉｏｎｏｆＮｅｇｔｉｖｅＥｎｔｒｏｐｙｉｎＬｉｂｒａｒｙＳｙｓｔｅｍｓＢａｉＬｉｈｕａ（ＮｏｒｔｈＣｈｉｎａＵｎｉｖｅｒｓｉｔｙｏｆＴｅｃｈｎｏｌｏｇｙ）Ａｂｓｔ...     

蔬菜产销灰色系统模拟

蔬菜产销灰色系统模拟罗庆成（浙江农业大学，杭州３１００２９）ＧｒｅｙＳｙｓｔｅｍｓＳｉｍｕｌａｔｉｏｎｏｎＶｅｇｅｔａｂｌｅｓＰｒｏｄｕｃｔｉｏｎａｎｄＳａｌｅＬｕｏＱｉｎｇｃｈｅｎｇ（ＺｈｅｊｉａｎｇＡｇｒｉｃｕｌｔｕｒｅＵｎｉｖｅｒｓｉｔｙ，Ｈａ...     

确定经济规模的相关分析─多指标综合评价法及其应用

确定经济规模的相关分析─多指标综合评价法及其应用唐五湘，陈一青（北京机械工业学院经济教研室，１０００８５）ＴｈｅＭｅｔｈｏｄｏｆＣｏｒｒｅｌａｔｉｏｎＡｎａｌｙｓｉｓ──ＭｕｌｔｉｐｌｅＡｔｔｒｉｂｕｔｅＣｏｍｐｒｅｈｅｎｓｉｖｅＡｐｐｒａｉｓａｌｆ...     

灰色预测模型的进一步拓广

灰色预测模型的进一步拓广吴惠荣（镇江高等专科学校２１２００３）ＦｕｒｔｈｅｒＤｅｖｅｌｏｐｍｅｎｔｏｆＧｒｅｙＦｏｒｅｃａｓｔｉｎｇＭｏｄｅｌＷｕＨｕｉｒｏｎｇ（ＺｈｅｎｊｉａｎｇＥｄｕｃａｔｉｏｎＣｏｌｌｅｇｅ）ＡｂｓｔｒａｃｔＴｈｉｓｐｒｏｐｏｓ...     

管道输油投入产出模型

管道输油投入产出模型佟仁城（中国科学院系统科学研究所，北京１０００８０）王万才，郭爱林（东北输油管理局，沈阳１１００３１）ＡｎＩｎｐｕｔ－ＯｕｔＰｕｔＭｏｄｅｌｆｏｒＯｉｌＰｉｐｉｎｇＴｏｎｇＲｅｎｃｈｅｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃ...     

GM(1,1)模型参数估计的新方法及假设检验

ＧＭ（１，１）模型参数估计的新方法及假设检验唐五湘（北京机械工业学院工商管理分院，１０００８５）ＡＮｅＷＭｅｔｈｏｄｏｆＥｓｔｉｍａｔｉｏｎｏｆｔｈｅＧＭ（１，１）ＭｏｄｅｌＰａｒａｍｅｔｅｒｓａｎｄＨｙｐｏｔｈｅｓｉｓＴｅｓｔｉｎｇＴａｎｇＷｕｘｉ...     

火力分配的最优剖分与投掷点的全局优化

火力分配的最优剖分与投掷点的全局优化李彦君，顾基发，汪寿阳（中国科学院系统科学研究所，北京１０００８０）ＯｐｔｉｍａｌＰａｒｔｉｔｉｏｎｓａｎｄＧｌｏｂａｌＯｐｔｉｍｉｚａｔｉｏｎｆｏｒＡｉｍｉｎｇＰｏｉｎｔｓｉｎＦｉｒｅＡｌｌｏｃａｔｉｏｎｓＹａｎ...     

均衡网络流及其算法探讨

均衡网络流及其算法探讨申金升耿颖，承向军（上海交通大学，２０００３０）（北方交通大学，北京１０００４４）ＡｎＩｎｖｅｓｔｉｇａｔｉｏｎｏｎＥｑｕｉｌｉｂｒｉｕｍＮｅｔｗｏｒｋＦｌｏｗｓａｎｄＣｏｍｐｕｔａｔｉｏｎａｌＭｅｔｈｏｅＳｈｅｎＪｉｎｓｈｅｎ...     

风险度量半参数变系数复合Expectile回归模型及应用

本文结合半参数变系数回归模型、期望分位数风险价值(EVaR)的思想以及充分利用多个Expectile信息能提高参数估计效率的假设,提出了一类半参数变系数复合Expectile回归模型,并对该模型进行了估计,建立了所提出复合Expectile回归(CER)估计的大样本性质.针对该模型既含有参数部分也含有非参数部分的特征,采用了方便计算的三步估计方法.通过数值模拟也发现,当误差为厚尾或非对称分布时,在均方根误差(RMSE)的标准下,所提出的CER估计大大优于最小二乘(LS)估计和简单的Expectile回归(ER)估计.另外,本文还应用所发展的理论分析了我国货币政策对上证综指的影响.     

自适应阵列处理典型算法的内在关系与统一框架

从经典维纳滤波器出发,以自适应干扰对消为纽带,推演出各种自适应阵列处理算法的等效原理。推导出降秩自适应滤波的统一算法结构,并提出线性约束正交投影算法。据此得出自适应阵列处理典型算法的内在关系,提出自适应阵列处理的统一框架,从而把单一约束和多线性约束(甚至静态方向图约束)、满秩和降秩、单级维纳滤波和多级维纳滤波有机统一起来,把对特殊干扰环境(相干干扰环境等)及期望信号特性(高阶累计量、循环平稳性等)下的处理视作预处理,构建起自适应阵列处理的统一理论基础。     

评价输入、输出最佳组合的非参数方法

评价输入、输出最佳组合的非参数方法朱乔，陈遥（东南大学经济管理学院，南京，２１００１８）ＮｏｎｐａｒａｍｅｔｒｉｃＡｐｐｒｏａｃｈｆｏｒＥｖａｌｕａｔｉｎｇｔｈｅＢｅｓｔＣｏｍｂｉｎａｔｉｏｎｆｏＩｎｐｕｔｓ，ＯｕｔｐｕｔｓＺｈｕＱｉａｏＣｈｅｎＹａ...     

级联码中的高码率短码长SLT码设计

将SLT（system Luby transform）码,尤其是高码率短码长的SLT码与低密度校验（low density parity check, LDPC）码等信道纠错码级联,可以通过增加少量的译码开销来有效地提高译码增益。然而,基于传统的设计方法得到的编码包度数分布难以保证在这种情况下得到性能良好的码字。结合级联译码的场景,在传统的优化方法基础上,增加了对编码包度数分布的优化,同时改进了具体的构造方法,从而给出了一种高码率短码长的SLT码的设计方法。仿真结果显示,新方法设计的码字能够取得良好的性能。     

Collaborative Regional Innovation Initiatives: A Booster for Local Company Innovation Processes?

It is widely acknowledged that the rate of innovations can be enhanced through interaction between new constellations of actors, crossing borderlines between different mindsets, knowledge and skill bases (e.g. Brown and Duguid, Org Sci 2(1):40–57, 1991; Cooke and Morgan, The associational economy: firms, regions, and innovation, 1998; Leonard-Barton, Wellsprings of knowledge: building and sustaining the sources of innovation, 1995, p. 64; Stamm, Managing innovation, design and creativity, 2008, p. 335). Studies of economic prosperity have also pointed to cooperation and competition between neighboring actors as a driver for competitiveness and innovativeness, be it for a company, a business area or a region (e.g. Piore and Sabel, The second industrial divide: possibilities for prosperity, 1984; Porter, The competitive advantage of nations, 1990). The hypothesis behind the geographical focus is that geographical proximity between actors promotes interaction and hence innovation. In EU, and also in Norway, this has been used actively as guidance in national and regional policy, where construction of innovation systems such as clusters and interorganizational networks are promoted and funded. To get organizations and institutions in a region to collaborate more is seen as the panacea for innovation, transformation and prosperity. However, companies often treat such constructed initiatives as an add-on to their ordinary, often long-lasting, business relationships between customers and suppliers (Håkansson et al., Business in networks, 2009, p. 13). This could imply that the necessary anchoring of such new innovation system initiatives with the companies’ own innovation processes is weak or missing. The terminology system points to the importance of the different elements (actors) in the system, their interrelatedness and their impact on each other (Meadows, Thinking in systems. A primer, 2009). An innovation system, like a network, cannot deliver innovation if the elements (i.e. the companies) of the systems don’t respond with related actions to the common endeavor. However, the different actors’ intraorganizational innovation processes are hardly mentioned in the innovation systems theories, thus lacking the important system feedback link between the intraorganizational innovation processes within the single company and the interorganizational innovation processes which are taking place in the collaborative initiative. In this article it is argued, supported by a case story, that attention to both of these processes and the nexus between them is needed in order to construct sustainable interorganizational innovation system initiatives. A model for this is proposed, based on a dual organization development process, encouraging system feedback loops and thereby bridging the single participating organization and the interorganizational collaborative initiative.     

基于区域准则的多目标决策方法

分析了代理值置换法（ＳＷＴ）使用中过于加重决策者和计算机负担的缺点，提出了基于所谓区域准则的多目标决策方法。给出了区域准则为常见的目标加权和准则下获取区域准则的两类方法，即改进的Ｚｉｏｎｔｓ－Ｗａｌｅｎｉｕｓ法和基于邻近准则分解和并合的方法。     

基于模糊C均值聚类和神经网络的短时交通流预测方法

短时交通流预测是动态交通控制和诱导的前提。提出一种模糊C均值聚类和神经网络相结合的短时交通流预测方法。用同一组实测数据对比计算了该方法与BP神经网络预测方法、模糊神经网络预测方法分别得到的预测结果。计算结果表明：所提出的方法的预测准确性明显地高于其他两种方法。     

基于LDPC编码的自适应数据重传方法

提出一种新的基于低密度校验(low density parity check, LDPC)码的自适应数据重传方法。在信道条件差（信噪比低）时, 该方法采用母码为低码率的LDPC码编码,校验位打孔的重传方式;在信道条件好（信噪比高）时,采用母码为高码率的LDPC码编码,信息位打孔的重传方式。该方法既能提高硬件利用率、节约能耗,又能保证在最差信道下数据传输的可靠性。     

基于几何统计的无人机信道模型及硬件模拟

针对无人机(unmanned aerial vehicle, UAV)通信信号三维空间传播特点,提出了基于多圆柱体的非平稳几何统计模型(geometry-based stochastic channel model, GSCM),该模型通过引入天线位置变换矩阵,可支持UAV〖JP2〗和地面移动端(mobile terminal,MT)任意三维移动轨迹。在此基础上,构建了适合硬件模拟实现的离散化模型,并设计实现了模拟时变信道特性的随机簇生灭算法,以及基于线性调频叠加原理的非平稳衰落模拟方法。硬件实测结果表明,本文信道模拟器输出的衰落幅值分布、时延功率谱和多普勒功率谱等统计特性与理论结果比较吻合,有效复现了信道时变衰落、多径时延、多径功率和多普勒频率随着UAV的位置和速度变化而变化的过程。     

基于T-S模型的非线性系统非脆弱保性能模糊控制

针对一类用T-S模糊模型描述的非线性系统,采用状态反馈的并行分布补偿方法研究其非脆弱保性能模糊控制问题,使得在控制器存在可加性摄动的情况下,其闭环性能指标值低于确定的上界。利用线性矩阵不等式处理方法,导出了非脆弱保性能模糊控制律的存在条件。通过建立和求解一个凸优化问题,给出了最优非脆弱保性能模糊控制律的设计方法,并用此方法设计一级倒立摆的非脆弱模糊控制律。仿真结果表明了方法的有效性。