关于加速地方民族高等教育发展的思考

面对充满机遇和挑战的 2 1世纪 ,地方民族高等教育的发展要从实践“三个代表”的高度 ,深化对地方民族高等教育发展重要性和紧迫性的认识 ;坚持观念、体制、机制创新 ,整体提升办学能力 ,加速管理队伍专业化、专职化建设 ,推动其超常规、跨越式发展 ,为地方经济和社会发展服务。     

Parametrically Guided Non-parametric Regression

We present a new approach to regression function estimation in which a non-parametric regression estimator is guided by a parametric pilot estimate with the aim of reducing the bias. New classes of parametrically guided kernel weighted local polynomial estimators are introduced and formulae for asymptotic expectation and variance, hence approximated mean squared error and mean integrated squared error, are derived. It is shown that the new classes of estimators have the very same large sample variance as the estimators in the standard non-parametric setting, while there is substantial room for reducing the bias if the chosen parametric pilot function belongs to a wide neighbourhood around the true regression line. Bias reduction is discussed in light of examples and simulations.     

A Simulated Annealing Approach to Communication Network Design

This paper explores the use of the meta-heuristic search algorithm Simulated Annealing for solving a minimum cost network synthesis problem. This problem is a common one in the design of telecommunication networks. The formulation we use models a number of practical problems with hop-limit, degree and capacity constraints. Emphasis is placed on a new approach that uses a knapsack polytope to select amongst a number of pre-computed traffic routes in order to synthesise the network. The advantage of this approach is that a subset of the best routes can be used instead of the whole set, thereby making the process of designing large networks practicable. Using simulated annealing, we solve moderately large networks (up to 30 nodes) efficiently.     

西部地区地方高校定位问题

高等学校定位包含高校在某一教育系统中的定位,与同类学校相比较中的发展目标定位,还包括人才培养目标的定位。中国西部地区高校存在着对定位不重视,定位不准确,缺乏个性和特色,盲目攀比,不切实际的问题。西部经济社会发展状况、政府权力、市场需求、学科特色等都是制约学校定位的因素。准确定位,要把握好办学类型、办学水平和办学特色等问题。     

An empirical analysis of the volatility of the Japanese stock price index: a non-parametric approach

This paper presents an empirical analysis of stochastic features of volatility in the Japanese stock price index, or TOPIX, using high-frequency data sampled every 5 min. The process of TOPIX is modeled by a stochastic differential equation with the time-homogeneous drift and diffusion coefficients. To avoid the risk of misspecification for the volatility function, which is defined by the squared diffusion coefficient, the local polynomial model is applied to the data, and then produced the estimates of the volatility function together with their confidence intervals. The result of the estimation suggests that the volatility function shows similar patterns for one period, but drastically changes for another.     

On the Local Polynomial Estimators of the Counting Process Intensity Function and its Derivatives

Abstract. We consider the properties of the local polynomial estimators of a counting process intensity function and its derivatives. By expressing the local polynomial estimators in a kernel smoothing form via effective kernels, we show that the bias and variance of the estimators at boundary points are of the same magnitude as at interior points and therefore the local polynomial estimators in the context of intensity estimation also enjoy the automatic boundary correction property as they do in other contexts such as regression. The asymptotically optimal bandwidths and optimal kernel functions are obtained through the asymptotic expressions of the mean square error of the estimators. For practical purpose, we suggest an effective and easy‐to‐calculate data‐driven bandwidth selector. Simulation studies are carried out to assess the performance of the local polynomial estimators and the proposed bandwidth selector. The estimators and the bandwidth selector are applied to estimate the rate of aftershocks of the Sichuan earthquake and the rate of the Personal Emergency Link calls in Hong Kong.     

Distribution-free test in Tobit mean regression model

This paper discusses the problem of fitting a parametric model in Tobit mean regression models. The proposed test is based on the supremum of the Khamaladze-type transformation of a partial sum process of calibrated residuals. The asymptotic null distribution of this transformed process is shown to be the same as that of a time-transformed standard Brownian motion. Consistency of this sequence of tests against some fixed alternatives and asymptotic power under some local nonparametric alternatives are also discussed. Simulation studies are conducted to assess the finite sample performance of the proposed test. The power comparison with some existing tests shows some superiority of the proposed test at the chosen alternatives.     

A SEMIPARAMETRIC MODEL FOR A FUNCTIONAL BEHAVIOURAL RESPONSE TO CAPTURE IN CAPTURE–RECAPTURE EXPERIMENTS

Capture–recapture experiments are commonly used to estimate the size of a closed population. However, the associated estimators of the population size are well known to be highly sensitive to misspecification of the capture probabilities. To address this, we present a general semiparametric framework for the analysis of capture–recapture experiments when the capture probability depends on individual characteristics, time effects and behavioural response. This generalizes well‐known general parametric capture–recapture models and extends previous semiparametric models in which there is no time dependence or behavioural response. The method is evaluated in simulations and applied to two real data sets.     

论"透支行政"的成因及对策

透支行政是地方政府在行使经济事务管理职能的过程中透支行政资源与经济建设和社会发展相关资源的行为,具有错位行政性、指标至上性、行为短期性、举债盲目性等特点.透支行政造成了宏观经济管理中综合平衡角色的缺失,导致各种资源的不必要耗费,为社会的全面发展埋下了隐患,给政府行使公共行政管理带来危害.要通过实践科学发展观、树立正确的政绩观、推进政府职能转变、加强政府官员素质教育、强化制约、监督机制予以解决.     

村规民约的效力：道德压制,抑或法律威慑

在我国传统社会中,乡规民约与国家法律在各自领域中依据不同的规则调整着社会秩序。革命和改革改变了乡规民约的社会基础,国家权力的渗透制约了乡规民约运行的空间。在现代社会发展中,民间规约与国家法律此消彼涨,在互动过程中渐次提升村民的现代法律意识,进而推动法治中国缓慢发展。