基于Agent的物流配送决策支持系统研究

物流配送是一个涉及多种影响因素的综合性复杂问题。本文探讨了基于Agent(智能体技术)的物流配送决策支持系统设计，在该系统中的智能体模型中引入学习机制，初步建立了一个具有专家系统特点、可以不断进化的物流配送决策支持系统。     

A new continuous distribution and two new families of distributions based on the exponential

Recent work on social status led to derivation of a new continuous distribution based on the exponential. The new variate, termed the ring(2)-exponential, in turn leads to derivation of two closely related new families of continuous distributions, the mirror-exponential and the ring-exponential. Both the standard exponential and the ring(2)-exponential are special cases of both the new families. In this paper, we first focus on the ring(2)-exponential, describing its derivation and examining its properties, and next introduce the two new families, describing their derivation and initiating exploration of their properties. The mirror-exponential arises naturally in the study of status; the ring-exponential arises from the mathematical structure of the ring(2)-exponential. Both have the potential for broad application in diverse contexts across science and engineering. Within sociobehavioral contexts, the new mirror-exponential may have application to the problem of approximating the form and inequality of the wage distribution.     

物流配送系统中的运筹学问题及方法研究

物流配送系统中包含诸多运筹学问题,如配送中心选址中的0-1规划问题,货物配载中的背包问题,配送路线优化中的动态规划问题等,通过建立数学模型,利用运筹学方法与信息技术的结合可对上述问题加以解决,为配送业务的进一步发展提供帮助.     

Characterizations of negative multinomial distributions based on conditional distributions

In this paper characterizations of negative multinomial distributions based on conditional distributions have been studied.     

进入权理论下的会计师事务所股权设置

Rajan和Zingales提出了进入权理论，认为企业的权力来源于进入权，即对关键资源接触和使用的权力。本文结合会计师事务所的特征，在分析其关键资源的基础上，建议会计师事务所的股权应设置为财产股、岗位股、贡献股。     

区域性物流园区布局方案优选的博弈研究

本文基于区域物流理论与博弈论的理论基础，建立了相应的区域性物流园区布局方案的优选博弈模型，并列出了可行的计算步骤，做出了方法评价，指出了该方法后续研究的方向，为物流园区区域性总体布局的优选问题提供了一种解决方法。     

直接转运对供应链的影响和要求

随着供应链管理概念在企业的发展与应用．传统的配送战略在进一步降低物流成本和满足顾客需求上都受到了一定的挑战。本文从直接转运（cross-docking）的涵义和运作特征出发，分析直接转运对供应链中生产商、分销商或配送中心和零售商的影响，并总结直接转运给供应链带来的总体利益，提出供应链主要参与者在实施直接转运方式时，应该从配送中心布局、执行与控制、仓库管理系统、供应链信息沟通和供应链伙伴关系等方面来考虑，从而使直接转运的利益最大化，进一步促进供应链的整合。     

A new bivariate distribution in natural exponential family

We propose a new bivariate distribution following a GLM form i.e., natural exponential family given the constantly correlated covariance matrix. The proposed distribution can represent an independent bivariate gamma distribution as a special case. In order to derive the distribution we utilize an integrating factor method to satisfy the integrability condition of the quasi-score function. The derived distribution becomes a mixture of discrete and absolute continuous distributions. The proposal of our new bivariate distribution will make it possible to develop some bivariate generalized linear models. Further the discrete correlated bivariate distribution will also arise from an independent bivariate Poisson mass function by compounding our proposed distribution (Iwasaki and Tsubaki, 2002).Received March 2003     

江苏沿江八市物流联合配送初探

首先论述了沿江八市（南京、苏州、无锡、常州、镇江、南通、扬州、泰州），实行联合配送的必要性，其次分析了沿江八市实行联合配送的优势条件，探讨了沿江八市实行联合配送的难点之所在及解决办法，最后着重就沿江八市实行联合配送的神经中枢——联合配送信息平台的构建，提出了一些看法和建议。     

The Bell Curve in Psychological Research and Practice: Myth or Reality?

The expression “the bell curve” designs both a kind of statistical distribution and the title of a famous and controversial book by Herrnstein and Murray. The first is so attractive that the second refers to it to give more credibility to its questionable theories on intelligence. The point is that, during the 20th century, the bell curve has assumed a more and more important role in psychological research and practice and have become both a reality and a myth. In the first case (reality) we can assist to appropriate applications of a real useful statistical concept. In the second (myth) we can have two kinds of attitudes: one attitude is typical of those researchers who search for normality in all their data and variables, just as Parsifal used to search for the Holy Graal (we call this “the Parsifal attitude”); the other is typical of those researchers who give normality for granted and act as if it were a Platonic Idea (we call this “the Plato attitude”). The article discusses the role of the normal distribution in psychological research and practice and shows how it can be dangerous to treat the bell curve as a God or an Idol.