信用指标空间的序关系及优势结构

就客户信用评估问题进行研究,引入信用指标空间和复合信用评估函数的概念,从理论上讨论了信用指标的序关系和信用指标空间的优势结构,并给出基于理想信用评估价值的评估优化模型和应用示例,从而给出客户信用评估过程的数学描述.     

复杂背景下红外小目标检测技术研究

在复杂红外背景中如果红外点目标所占的像素少,通常的检测方法就很难将目标检测出来,且往往会含有较多假目标。首先对图像进行预处理,利用图像本身的灰度级别对小目标进行初步筛选,然后利用可能目标点的信息对假目标进行剔除。实验结果表明,此方法对复杂背景中小目标检测有较好的效果。     

On the axioms of revealed preference in fuzzy consumer theory

The revealed preference is a central subject in classical consumer theory.Authors likeSamuelson,Arrow,Richter,Sen,Uzawa and others have proposed an axiomatic setting of revealedpreference theory.Consequently revealed preference axioms WARP and SARP and congruence axioms WCA andSCA have been considered.An important theorem of Sen establishes the equivalence between these axioms provided thefamily of budgets includes all non-empty finite sets of bundles.Fuzzy consumer theory(＝fuzzy choice functions)is a topic that appears in a lot of papers.Particularly,Banerjee studies in fuzzy context axioms of revealed preference and congruenceextending some results of Arrow and Sen.In this paper we modify the Banerjee definition of a fuzzy choice function(＝fuzzy consumer)and we study some fuzzy versions of the axioms of revealed preference and congruence.Banerjeefuzzifies only the range of a consumer;we use a fuzzification of both the domain and the range of aconsumer.The axioms WAFRP,SAFRP,WFCA,SFCA generalize to fu     

基于p^5阶Φ_2族群的LA-群

通过对p^5阶群（非交换）中φ2族群进行p^n阶扩张，得到一系列新的LA-群．     

依法治国与法治关系

十七大报告提出了“全面落实依法治国基本方略，加快建设社会主义法治国家”的科学论断。可见，“依法治国”与“法治”不能划等号，它们之间既有联系也有区别。     

数据挖掘技术在电子商务中的运用

主要分析在电子商务环境下数据挖掘的技术框架、技术实现和具体运用。     

An approach to group decision making based on interval fuzzy preference relations

In this paper, we investigate group decision making problems where the decision information given by decision makers takes the form of interval fuzzy preference relations. We first give an index to measure the similarity degree of two interval fuzzy preference relations, and utilize the similarity index to check the consistency degree of group opinion. Furthermore, we use the error-propagation principle to determine the priority vector of the aggregated matrix, and then develop an approach to group decision making based on interval fuzzy preference relations. Finally, we give an example to illustrate the developed approach.     

一些具有非固定步循环图中生成树的个数

虽然没有简单易行的方法计算一般图中生成树的个数,对一些无向且具有非固定步循环图,可以给出简单的方法确定其中的生成树个数所满足的递推关系和渐进性质.     

基于ZMNL经验迭代法的相关非高斯雷达杂波仿真

针对基于零记忆非线性变换(zero memory nonlinearity,ZMNL)的相关非高斯雷达杂波仿真,提出了一种类似神经网络形式的经验迭代法。该方法在对输出频谱估计的基础上,反复修正输入频谱,经过多次迭代运算来确定非线性变换前后相关系数之间的关系。给出了应用该方法进行杂波仿真的具体步骤,仿真结果证明了该方法的有效性。     

Co薄膜的磁滞回线标度行为

采用磁控溅射法制备了多晶的Co薄膜,研究了其结构、磁滞行为和标度关系.实验结果表明:Co薄膜具有简单立方结构和沿膜面的易磁化方向;沿Co磁性薄膜的易磁化方向所得到的标度指数值α=0.90,与其它实验和理论计算结果相近;而对于沿难轴方向,Co磁性膜的标度指数(α=1.8)比沿易磁化方向的要大得多,这种差异有待进一步的理论研究.