广义分式规划的离散化处理方法

首先对紧集Ｈ进行离散化处理，然后重新修正Ｈ上广义分式规划问题（Ｐ）的Ｄｉｎｋｅｌｂａｃｈ型算法     

基于MPEG-4的三维人脸动画

具有真实感的三维人脸动画是计算机图形学研究的一个重要分支,有着广泛的应用领域。如何在三维人脸模型上实时地模拟人脸的运动,产生具有真实感的人脸表情和动作,是其中的一个难点。该文在MPEG-4的三维人脸动画原理的基础上提出一种新的基于MPEG-4的、适宜于任意拓扑结构模型的三维人脸动画实现方法。该方法能够在FAP帧的驱动下实现真实感较强的三维人脸动画。     

Some robust parameter designs from orthogonal arrays

Robust parameter design, originally proposed by Taguchi [System of Experimental Design, Vols. I and II, UNIPUB, New York, 1987], is an offline production technique for reducing variation and improving a product's quality by using product arrays. However, the use of the product arrays results in an exorbitant number of runs. To overcome this drawback, several scientists proposed the use of combined arrays, where the control and noise factors are combined in a single array. In this paper, we use non-isomorphic orthogonal arrays as combined arrays, in order to identify a model that contains all the main effects (control and noise), their control-by-noise interactions and their control-by-control interactions with high efficiency. Some cases where the control-by-control-noise are of interest are also considered.     

Statistical inference about the shape parameter of the Weibull distribution by upper record values

Summary In this paper, we provide some pivotal quantities to test and establish confidence interval of the shape parameter on the basis of the firstn observed upper record values. Finally, we give some examples and the Monte Carlo simulation to assess the behaviors (including higher power and more shorter length of confidence interval) of these pivotal quantities for testing null hypotheses and establishing confidence interval concerning the shape parameter under the given significance level and the given confidence coefficient, respectively.     

Mode type quasi-range and its applications

Building from the consideration of closeness, we propose the mode quasi-range as an alternative scale parameter. Application of this scale parameter to formulate the population standard deviation is investigated leading to an efficient sample estimator of standard deviation from the point of asymptotic variance. Monte Carlo studies, in terms of finite sample efficiency and robustness of breakdown point, have been performed for the sample mode quasi-range. This study reveals that this closeness consideration-based mode, quasi-range, is satisfactory because these statistical procedures based on it are efficient and are less misleading for drawing conclusion from the sample results.     

功能点分析法的研究和改进

根据项目实践中的经验,将当前流行的软件规模度量方法——功能点分析法进行了改进。针对不同业务需求稳定性的差异,考虑到了需求在项目过程中的变化因素,在功能点分析法的每个功能点接口中分别加上一个需求稳定性的调整系数,将原有功能点逐个进行稳定性调节。本文通过一个实际的例子分析了改进前后的功能点数的变化情况,实验数据证明改进后的功能点数在项目推进过程中平稳的被完成,避免了传统的功能点数在项目后期出现较大的震荡。     

Sequential estimation for a family of counting processes in the nuisance parameter case

The paper deals with the problem of sequential estimation for stochastic processes in the presence of a nuisance parameter. Using the approach to estimation through estimating equations, optimum estimating functions based on a random observation time are investigated in some models for processes appearing in reliability systems theory.     

SiZer Map for inference with additive models

Sizer Map is proposed as a graphical tool for assistance in nonparametric additive regression testing problems. Four problems have been analyzed by using SiZer Map: testing for additivity, testing the components significance, testing parametric models for the components and testing for interactions. The simplicity and flexibility of SiZer Map for our purposes are highlighted from the performed empirical study with several real datasets. With these data, we compare the conclusions derived from SiZer analysis with the global results derived from standard tests, previously proposed in the literature.     

Allan方差公式的扩充与修正

Allan方差是评定振荡器频率随机波动的一个特征值．本文对频域参数α作进一步扩充，推得一组Allan方差表达式，并在有限频域下提出修正，导出了在有限频域[fa，fb]的Allan方差扩充公式．     

Modelling cell generation times by using the tempered stable distribution

Summary.  We show that the family of tempered stable distributions has considerable potential for modelling cell generation time data. Several real examples illustrate how these distributions can improve on currently assumed models, including the gamma and inverse Gaussian distributions which arise as special cases. Our applications concentrate on the generation times of oligodendrocyte progenitor cells and the yeast Saccharomyces cerevisiae . Numerical inversion of the Laplace transform of the probability density function provides fast and accurate approximations to the tempered stable density, for which no closed form generally exists. We also show how the asymptotic population growth rate is easily calculated under a tempered stable model.