Survival functions for the frailty models based on the discrete compound Poisson process

Frailty models are often used to model heterogeneity in survival analysis. The distribution of the frailty is generally assumed to be continuous. In some circumstances, it is appropriate to consider discrete frailty distributions. Having zero frailty can be interpreted as being immune, and population heterogeneity may be analysed using discrete frailty models. In this paper, survival functions are derived for the frailty models based on the discrete compound Poisson process. Maximum likelihood estimation procedures for the parameters are studied. We examine the fit of the models to earthquake and the traffic accidents’ data sets from Turkey.     

Optimum treatment allocation for dual-objective clinical trials with binary outcomes

A common problem in randomized controlled clinical trials is the optimal assignment of patients to treatment protocols, The traditional optimal design assumes a single criterion, although in reality, there are usually more than one objective in a clinical trial. In this paper, optimal treatment allocation schemes are found for a dual-objective clinical trial with a binary response. A graphical method for finding the optimal strategy is proposed and illustrative examples are discussed.     

“Faulty inspeciton” distributions

The distribution of the number of items observed to be defective in samples from a finite population. When detection of defectiveness is not certain, is obtained. The distribution of waiting time all a specified number of defective items is observed is also considered.

     

LCCM理论框架下空间介词in的非空间关系语义派生研究

英语空间介词的语义研究是认知语言学的热点之一。本文运用LCCM理论对英语空间介词in的词汇概念进行系统全面的认知识解,重点分析了in的词汇概念从空间关系转向非空间关系的认知过程,以期对该领域的研究提供一个新的视角。     

有标选择复句语义关系之辨察

有标选择复句的语义关系特征为：一方面,前呼句跟后应句之间的同一性决定了它们之间的共性特征,表现在句法上就是结构的相关性乃至相似性、对称性。另一方面,同一系统中的各个元素,不仅存在同一性,而且存在着差异性。表现在语义上就是有标选择复句的前呼句跟后应句至少有一个语义点不同,否则很难构成选择关系。此外,有标选择复句还存在三类复合型语义关系,即“选择＋假设”“选择＋假转”和“选择＋假转＋推断”。     

The probability function of a geometric Poisson distribution

The geometric Poisson (also called Pólya–Aeppli) distribution is a particular case of the compound Poisson distribution. In this study, the explicit probability function of the geometric Poisson distribution is derived and a straightforward proof for this function is given. By means of a proposed algorithm, some numerical examples and an application on traffic accidents are also given to illustrate the usage of the probability function and proposed algorithm.     

汉语双音节词拆用的认知研究

词的拆用将语素临时当作词来使用,是语言表达的有效机制之一。构词语素在意义上的独立性是其产生的物质基础,拆用式对原式的正偏离满足了语义表达的现实需要,并列式复合词的构词语素由于语法和语义上的相对独立性因而最容易发生拆用现象。     

述宾式复合词变异用法探析

述宾式复合词能够拆开扩展使用,也能够直接带宾语,这是近年来文学作品及新闻媒体中经常出现的一种超常语言表现形式。这种突破汉语旧有模式的变异用法,无论在表达内容情感,还是表现语气色彩等方面,都具有一般语言形式所没有的语用价值。这些新奇、超常甚至怪异的搭配方式及其使用,往往却能以其独特的表现形式而充满感人的艺术魅力和吸引力。     

商务英语中时间前置词的使用与翻译

前置词在英语中使用频率很高。通过实例从四个方面分析和探讨了商务英语中时间前置词的使用与翻译及相关的注意事项。