外来人口的居留意愿与合理流动——以北京市顺义区外来人口为例

在简单介绍顺义区外来流动人口基本情况的基础上,运用多类别对数比率回归分析方法,分析了影响外来人口居留意愿的积极和消极因素。研究表明:来京时间、户口性质、住房情况、在北京是否有固定工作以及家人是否同在北京是影响外来人口居留意愿的主要因素。认为:要从城市的推力、拉力入手,正确引导流动人口的流动方向和流动速度,实现建立和谐社会的目标。     

研究生教育信息化的发展与问题探讨

研究生教育信息化是信息社会发展的需要。在当前信息时代下,立足于上海的实际,对研究生教育信息化的基本内涵、发展方向、规划目标、结构模型、当前面临的问题及展望等有关发展的相关问题提出若干新的看法。     

Selection of the best generalized inverse-gaussian markov sequence

Selection between two ancL selection of the best amongst many Generalised Inverse Gaussian Markov Sequences (GIGMSs) is discussed in this paper. Probability of correct selection and determination of the sample size for achieving such a probability, as a function of the number of Markov sequences involved, are also derived and illustrated.     

浅议《现代教育技术》实验教学的整体优化设计与实施

本文对《现代教育技术》实验教学的整体优化设计与实施的相关问题加以论述。     

后现代主义语境中的非后现代性——《五号屠场》非后现代性解读

美国著名后现代派作家库尔特·冯内古特在《五号屠场》中运用元叙事、拼贴、漫画式人物、黑色幽默等典型的后现代主义手法,把现实与虚幻结合起来,构筑多元、开放式结构,同时又在解构与结构的并存中建构中心、意义和主题,消解了后现代主义"不确定性"和"内在性"的典型特征,使作品呈现出后现代主义语境中的非后现代性.     

从任渊《后山诗注》看后山诗法

宋代学者任渊著有《后山诗注》,该书能发明陈师道之意,对陈师道诗中的典故语词,能详尽准确地引出与其意义契合的出处,并由此看出陈师道对杜甫、韩愈、黄庭坚、王安石、苏轼等人诗法的继承和变化,从而总结“后山体”的特点。陈师道诗歌善于继承模仿前人的字法、句法,在此基础上点化诗意,包括化用、反用、合用、展用等方面,达到“夺胎换骨”、“点铁成金”的效果,最终自成一体。     

Screening for Multiple Target Detection

We apply statistical selection theory to multiple target detection problems by analyzing the Mahalanobis distances between multivariate normal populations and a desired standard (a known characteristic of a target). We want to achieve the goal of selecting a subset that contains no non target (negative) sites, which entails screening out all non targets. Correct selection (CS) is defined according to this goal. We consider two cases: (1) that all covariance matrices are known; and (2) that all covariance matrices are unknown, including both heteroscedastic and homoscedastic cases. Optimal selection procedures are proposed in order to reach the selection goal. The least favorable configurations (LFC) are found. Tables and figures are presented to illustrate the properties of our proposed procedures. Simulation examples are given to show that our procedures work well. The log-concavity results of the operating characteristic functions are also given.     

One way anova for dependent observations

The necessary and sufficient conditions for the classical one way ANOVA procedure to be valid for testing the equality of means of k indepent, first order stationary Gaussian sequences are obtained. Some special models are examined in the light of these necessary and sufficient conditions.     

《红楼梦》脂评本技法论价值之探讨

技法论是《红楼梦》脂砚斋评本关注重心之一,它在一定程度上反映了小说较为重要的叙事艺术特征。脂评本的技法论较多地因袭了前人,因而不应对此视而不见,甚而刻意抬高脂评本的评点价值。另外,脂砚斋又较为确切地揭示了《红楼梦》自身独到的叙事特征所在,因此还是存有一定的价值,具体而言：在技法观念上极力反对叙写过程中的俗套化、程式化现...     

Clustering of Variables Around Latent Components

Abstract

Clustering of variables around latent components is investigated as a means to organize multivariate data into meaningful structures. The coverage includes (i) the case where it is desirable to lump together correlated variables no matter whether the correlation coefficient is positive or negative; (ii) the case where negative correlation shows high disagreement among variables; (iii) an extension of the clustering techniques which makes it possible to explain the clustering of variables taking account of external data. The strategy basically consists in performing a hierarchical cluster analysis, followed by a partitioning algorithm. Both algorithms aim at maximizing the same criterion which reflects the extent to which variables in each cluster are related to the latent variable associated with this cluster. Illustrations are outlined using real data sets from sensory studies.