强混合序列下非参回归函数加权核估计的强收敛速度

在误差项为强混合序列的条件下,利用随机变量部分和的矩不等式,讨论非参回归函数加权核估计的强相合性,给出其收敛速度.当样本矩足够大时,强相合的收敛速度约等于n-1/2.     

高中化学学业水平考试与课程标准的一致性探究——以吉林省高中化学学业水平考试为例

利用本土化的韦伯一致性分析模式,从知识种类、知识深度、知识广度和知识分布平衡性4个维度对高中化学学业水平考试试题与课程标准的认知性内容进行一致性分析,并结合研究结果进行归因分析和反思建议,以期对学业评价的研究提供些许参考。     

基于LCD显示器光谱特性的图像颜色一致性研究

为了解决环境光和显示器色温对LCD显示器图像颜色再现有较大影响的问题,提出一种基于LCD显示器光谱特性的图像颜色一致性方法。通过测量在不同环境光和色温下99个行业认可颜色的光谱,总结出不同环境光和色温对LCD显示器图像颜色再现的光谱规律。利用不同环境光下的光谱叠加性及不同色温下的光谱对应规律,实现了不同环境光和色温下的LCD显示器图像颜色一致性,一致性后的图像平均主观评价Z得分为0.50。研究结果表明,该方法能够很好地解决不同环境光和色温下的LCD显示器图像颜色的一致性问题。     

切实做好高校学生入党积极分子的教育培养工作

只有紧跟时代步伐，牢牢把握青年大学生的思想脉搏，不断创新我们教育培养工作的方法、措施，有的放矢，力求实效，才能促进大学生入党积极分子的健康成长，为高校学生党员发展工作提供源头活水。     

Consistent Algorithm for Multi-value Constraint with Continuous Variables

Mature algorithms for the Constraint Satisfaction Problem (CSP) of binary constraint with discrete variables have already been obtained for the application. For the instance of multi-value constraint with continuous variables, the approach will be quite different and the difficulty of settling will aggrandize a lot. This paper presents the algorithm for realizing global consistency of continuous variable. And this algorithm can be applied to multi-value constraint.     

Criterion for judging satisfaction of consistency conditions in rate-dependent constitutive relations

Based on irreversible thermodynamics, the criterion for judging the satisfaction of consistency conditions in rate-dependent constitutive relationship is deduced by introducing four basic hypotheses. Formulas for solving internal variables are given. It makes the rate-dependent model applicable no matter whether the consistency conditions can be satisfied or not. This research was funded by the National Natural Science Foundation of China (No. 59739180) and the Foundation of National Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology (No. 9701).     

部分结构突变的线性面板模型的变点估计

Han Jiao;Xia Zhiming(School of Mathematics,Northwest University,Xi'an 710127,China)     

集体经营性建设用地入市的现实困境与理论误区—以“同地同权”切入

允许集体经营性建设用地与国有建设用地“同地同权”“同等入市”,进而建立城乡统一的建设用地市场,是当下和未来一段时期我国农村土地产权制度改革的方向。如果不对土地的用途管制、规划条件和使用方式进行具体界定,将难以实现“同地同权”,也会夸大市场机制在集体经营性建设用地“一级市场”形成中的作用,进而催生土地食利阶层。由此折射出学界讨论方式的不足：不应从抽象原则出发讨论问题,而要回到现实世界,强调土地的通途管制、规划条件和使用方式的差异性,以及关注差异性所带来的可能后果。     

一种模糊互补判断矩阵的一致性调整方法

在模糊互补判断矩阵的一致性研究成果的基础上借助原判断矩阵P与其权重矩阵W之间的向量夹角,找出需要调整的列及其所对应的行,借助于参数λ调整此行此列,从而提高判断矩阵P的一致性,并给出了相应算例分析。     

A Useful Criterion on Studying Consistent Estimation in Community Detection

In network analysis, developing a unified theoretical framework that can compare methods under different models is an interesting problem. This paper proposes a partial solution to this problem. We summarize the idea of using a separation condition for a standard network and sharp threshold of the Erdös–Rényi random graph to study consistent estimation, and compare theoretical error rates and requirements on the network sparsity of spectral methods under models that can degenerate to a stochastic block model as a four-step criterion SCSTC. Using SCSTC, we find some inconsistent phenomena on separation condition and sharp threshold in community detection. In particular, we find that the original theoretical results of the SPACL algorithm introduced to estimate network memberships under the mixed membership stochastic blockmodel are sub-optimal. To find the formation mechanism of inconsistencies, we re-establish the theoretical convergence rate of this algorithm by applying recent techniques on row-wise eigenvector deviation. The results are further extended to the degree-corrected mixed membership model. By comparison, our results enjoy smaller error rates, lesser dependence on the number of communities, weaker requirements on network sparsity, and so forth. The separation condition and sharp threshold obtained from our theoretical results match the classical results, so the usefulness of this criterion on studying consistent estimation is guaranteed. Numerical results for computer-generated networks support our finding that spectral methods considered in this paper achieve the threshold of separation condition.