On left-truncating and mixing Poisson distributions

ABSTRACT

The distributions obtained by left-truncating at k a mixed Poisson distribution, denoted kT-MP, and those obtained by mixing previously left-truncated Poisson distributions, denoted M-kTP, are characterized by means of their probability generating function. The main consequence is that every kT-MP distribution is a M-kTP distribution, but not the other way around.     

Distributions of simple patterns in some kinds of exchangeable sequences

In this article, we consider the distributions of simple patterns in some types of sequences of infinite exchangeable multi-state trials. The distributions on exchangeable multi-state trials are considered in terms of an extension of de Finetti's theorem. As an application of partially exchangeable sequences, distributions on a Markov exchangeable sequence are studied. Furthermore, we propose a new type of partially exchangeable sequence and examine its properties. In addition, we discuss the distribution theory in the case of the finite exchangeable sequences. The results presented here provide a wide framework for developing the exact distribution theory of simple patterns. Finally, some examples are given in order to illustrate our theoretical results.     

专业性别隔离的产生过程及其影响因素

目前在教育领域中仍然存在着性别不平等，专业性别隔离就是其表现之一。运用定量研究，证实专业性别隔离的存在，并把中等教育和高等教育连接，从教育过程中探究专业性别隔离的产生和强化，从家庭、学校及专业环境考察影响因素，提出消除关于专业的性别刻板印象及鼓励女生在专业和职业发展的具体建议，为以后进行更为深入的分析提供探索性研究。     

完全模糊线性系统的非正模糊近似解

针对完全模糊线性系统A~x=~b,其中A~,~x和b~分别为模糊数矩阵和模糊数向量,利用广义LR-模糊数及其近似算法,讨论了完全模糊线性系统的非正模糊近似解.     

传媒权力生成——另一种考察视阈

传媒权力的生成不仅呈现出多元复杂的生态景象,而且表现出动态变化的生长逻辑.当传媒充当意识形态国家机器时,传媒的权力表征为对国家暴力机器的依附,并且释放出无所不能的力量.当传媒作为社会公器时,传媒凭借其对公共舆论形成与走向的掌控,日益显示出无所不能的霸权.当传媒充当现代社会人们信息化生存的依赖时,传媒由于控制了受众的看法,导演了受众的意见,从而占有了大众或者获得了支配大众的权力.     

NONPARAMETRIC STATISTICAL ANALYSIS OF DISCRETE-TIME QUEUES,WITH APPLICATIONS TO ATM TELETRAFFIC DATA

In this paper nonparametric statistical analysis of a discrete-time queueing system is considered. Estimation of performance measures of the system is studied. The attention is first focused on the estimation of the waiting time probability distribution, as well as of functionals of interest (mean waiting time, variance of the waiting time, etc.). The approach is based on the estimation of the corresponding generating function. Attention is paid to the estimation of the probability of a “long delay”, in view of its importance for applications. Results for possibly unstable models are also obtained. Finally, an application to ATM teletraffic data is provided.     

On the differences of two generalized negative binomial variates

The generalized negative binomial (GNB) distribution was defined by Jain and Consul (SIAM J. Appl. Math., 21 (1971)) and was obtained as a particular family of Lagrangian distributions by Consul and Shenton (SIAM J. Appl. Math., 23 (1973)). Consul and Shenton also gave the probability generating function (p.g.f.) and proved many properties of the GNBD. Consul and Gupta (SIAM J. Appl. Math., 39 (1980)) proved that the parameter β must be either zero or 1≤ β ≤ θ^-1 for the GNBD to be a true probability distribution and proved some other properties. Numerous applications and properties of this model have been studied by various researchers. Considering two independent GNB variates X and Y, with parameters (m,β,θ) and (n,β,θ) respectively, the probability distribuition of D = Y-X and its p.g.f. and cumulant generating function have been obtained. A recurrence relation between the cumulants has been established and the first four cumulants, β₁ and β₂ have been derived. Also some moments of the absolute difference |Y-X| have been obtained.     

弗吉尼亚·伍尔夫小说文本经典性的生成机制重释评骘

在英国现代小说理论的发展史上,弗吉尼亚·伍尔夫的"文本经典性"观念一直是国内外文评界常说常新的议题。这一涉及小说结构原则的核心创作理念侧重于将语言实验的认识论视角伸向由无数印象片断构成的重要瞬间的幽暗意识深处,认为人类最真实的生存状态才应是小说文本理应捕捉的"重要时刻"。她的文本生成观体现了小说艺术的持久力和生命意识的情感化,这种开放的唯美主义思维模式引领了当今西方文论建设的新方向,同时也给物欲横流的迷茫的现代人类带来了更多的生命启示和生活希冀。     

中国近代伦理学核心术语的生成通则初探

中国近代伦理学的核心术语是支撑近代伦理新学的基石。在中国近代伦理学核心术语的生成通则中,其生成路径有三:一是重新创制,一是直接对译,一是侨词来归;其生成原则有二:一是在制名上,力图传承重于创新;二是在翻译上,以意译为主,力求选名通俗。这些通则的生成,推动了中国传统伦理向近代的转型,也促成了中国近代伦理学的萌生。     

Interval estimators for reliability: the bivariate normal case

This paper proposes procedures to provide confidence intervals (CIs) for reliability in stress–strength models, considering the particular case of a bivariate normal set-up. The suggested CIs are obtained by employing either asymptotic variances of maximum-likelihood estimators or a bootstrap procedure. The coverage and the accuracy of these intervals are empirically checked through a simulation study and compared with those of another proposal in the literature. An application to real data is provided.