Quantile regression in functional linear semiparametric model

This paper proposes nonparametric estimation methods for functional linear semiparametric quantile regression, where the conditional quantile of the scalar responses is modelled by both scalar and functional covariates and an additional unknown nonparametric function term. The slope function is estimated using the functional principal component basis and the nonparametric function is approximated by a piecewise polynomial function. The asymptotic distribution of the estimators of slope parameters is derived and the global convergence rate of the quantile estimator of unknown slope function is established under suitable norm. The asymptotic distribution of the estimator of the unknown nonparametric function is also established. Simulation studies are conducted to investigate the finite-sample performance of the proposed estimators. The proposed methodology is demonstrated by analysing a real data from ADHD-200 sample.     

自卑与自亢的互见——析路遥小说创作的重要心理动因

路遥小说文本的表层精神幻像掩盖了其真实的创作心理,导致以往的路遥本体研究难以深入.路遥在童年时期和青少年时期形成了难以排遣的自卑情结,这成为其日后小说创作的重要心理动因.为了在作家的"白日梦"中寻求对自卑的超越,路遥创作中典型的特征是自卑与自亢的互见.这造成作品中凡是存有路遥自我精神投射的男性文学形象均呈现为"高大全",而其他文学形象,尤其是女性文学形象,只能沦为其超越自卑的符号.     

微课在高等教育中的定位与发展方向

当前,微课的兴起是教学信息化中引人注目的新现象。针对微课在教育活动中如何定位的问题进行深入分析,得出在高等教育中,微课是课堂讲授的有益补充,而且是教师交流教学经验的理想工具,并指出微课的发展方向——突出特色,少而精。该文针对微课在高等教育中的定位与发展方向展开探讨与研究,期望为微课在教育领域的应用提供有益参考。     

新工科背景下机械电子工程专业综合课程设计教学改革与探索

现代社会的发展对机械电子工程专业人才提出了更高的要求。结合新工科建设背景,针对现阶段综合课程设计教学中存在的问题,进行了课程改革。以培养学生创新能力和解决实际工程问题的能力为目标,通过模拟实际工程项目的方法,充分调动学生的学习热情,鼓励创新思维,提升学生的实践能力,切实提高机械电子工程专业的人才培养质量。     

Componentwise B-spline estimation for varying coefficient models with longitudinal data

A componentwise B-spline method is proposed for estimating the unknown functions in the varying-coefficient models with longitudinal data. Different amounts of smoothing are used for different individual coefficient functions and the estimators of different coefficient functions are obtained by different minimization operations. The local asymptotic bias and variance of the estimators are derived. It is shown that our estimators achieve the local and global optimal convergence rates even if the coefficient functions belong to different smoothness families. The asymptotic distributions of the estimators are also established and are used to construct approximate pointwise confidence intervals for coefficient functions. Finite sample properties of our procedures are studied through Monte Carlo simulations.     

农民职业分化与流动的因素分析——以安徽省霍邱县花园村为例

农民职业分化是农村社会发展的必要前提。促进农民职业分化的因素是多方面的，总体上可以概括为主观和客观两个层面。结合花园村农民职业分化现状，从政策、经济、教育和村民互动四个角度，分析影响农民职业分化的因素。     

目标管理的实质及其在地方院校管理中的运用

目标管理首先是一种管理的哲学 ,其次才是一种管理的方法。当前许多地方院校在运用目标管理时仅仅将其作为工具在使用 ,只注重其形式和细节 ,忽略其精神实质。还其本来面目 ,并赋予目标管理新的时代内涵 ,是地方院校灵活运用目标管理的当务之急。     

关于优化农村教育资源的思考

本文分析了当前农村教学资源配置存在的主要问题和进行农村教育资源重组所面临的主要困难 ,提出了优化农村教育资源的基本思路 ,并重点讨论了合理调整农村教育网点布局和优化教师队伍结构的原则和方法     

翻译学研究的框架

科学的翻译理论框架对翻译研究工作的合理分工具有主要意义。霍尔姆斯的翻译研究框架能够涵盖当前翻译研究的各个领域。根据这一框架 ,中国翻译学的研究重点应该侧重描写翻译学基础上的语言和文化的对比翻译理论。     

Asymptotic Normality of M-Estimators for Varying Coefficient Models with Longitudinal Data

This article considers a nonparametric varying coefficient regression model with longitudinal observations. The relationship between the dependent variable and the covariates is assumed to be linear at a specific time point, but the coefficients are allowed to change over time. A general formulation is used to treat mean regression, median regression, quantile regression, and robust mean regression in one setting. The local M-estimators of the unknown coefficient functions are obtained by local linear method. The asymptotic distributions of M-estimators of unknown coefficient functions at both interior and boundary points are established. Various applications of the main results, including estimating conditional quantile coefficient functions and robustifying the mean regression coefficient functions are derived. Finite sample properties of our procedures are studied through Monte Carlo simulations.