Optimal Use of Communication Resources

We study a repeated game with asymmetric information about a dynamic state of nature. In the course of the game, the better‐informed player can communicate some or all of his information to the other. Our model covers costly and/or bounded communication. We characterize the set of equilibrium payoffs and contrast these with the communication equilibrium payoffs, which by definition entail no communication costs.     

基于模糊信息熵的环境管理过程控制能力

建立了环境管理过程的闭环过程控制系统模型,用模糊控制系统表达环境管理过程中的不确定性,分析了环境管理过程的控制能力,建立了过程控制能力函数。将信息熵引入模糊环境过程控制函数的参数识别,建立了环境管理过程度量方法。同时,建立了环境管理过程决策支持系统,以实现环境管理过程的参数识别和能力评估。     

Monte Carlo comparison of five exponentiality tests using different entropy estimates

The paper studies five entropy tests of exponentiality using five statistics based on different entropy estimates. Critical values for various sample sizes determined by means of Monte Carlo simulations are presented for each of the test statistics. By simulation, we compare the power of these five tests for various alternatives and sample sizes.     

Improved estimators for the selected location parameters

_i , i = 1, 2, ..., k be k independent exponential populations with different unknown location parameters θ _i , i = 1, 2, ..., k and common known scale parameter σ. Let Y _i denote the smallest observation based on a random sample of size n from the i-th population. Suppose a subset of the given k population is selected using the subset selection procedure according to which the population π _i is selected iff Y _i ≥Y ₍₁₎−d, where Y ₍₁₎ is the largest of the Y _i 's and d is some suitable constant. The estimation of the location parameters associated with the selected populations is considered for the squared error loss. It is observed that the natural estimator dominates the unbiased estimator. It is also shown that the natural estimator itself is inadmissible and a class of improved estimators that dominate the natural estimator is obtained. The improved estimators are consistent and their risks are shown to be O(kn ⁻²). As a special case, we obtain the coresponding results for the estimation of θ₍₁₎, the parameter associated with Y ₍₁₎. Received: January 6, 1998; revised version: July 11, 2000     

江西省文化创意产业集群程度的实证分析

基于江西省不同层面数据,利用区位熵指标公式计算得知:江西文化创意产业集群程度总体较低。其中南昌、景德镇、萍乡、鹰潭和吉安的文化创意产业集群程度较高,其他城市文化创意产业集群程度较低;文化创意产业中的文化部门、广电部门和其他部门的集群程度较高,新闻出版部门和旅游部门的集群程度较低;文化创意产业中核心层和相关层的集群水平较高,外围层的集群程度较低。要提高江西文化创意产业集群程度,需加强文化创意产业人才队伍建设,提高文化创意产业科技含量,拓展文化创意产业融资渠道,完善文化创意产业基地和园区的相关及支撑产业。     

基于AHP法和熵权法的独立学院教师绩效考核

文章针对独立学院教师绩效考核过程中存在指标体系不健全、考核成绩计算过程中各项目权重分配不科学等问题,提出将基于层次分析法的主观赋权法与基于熵的客观赋权法相结合的主客观赋权法,以此提高权重分配的科学性与准确性;最后,选取某独立学院的教师进行实证分析.     

熵理论与和谐社会

熵理论揭示了任何事物和过程都是有序和无序的辩证统一,人类社会的发展也是有序和无序的辩证统一。构建和谐社会的实质就是克服无序(不和谐)、创建有序(和谐),实现安定有序。这是建设中国特色社会主义的重大任务。     

从熵的视角看经济发展方式和生活方式的转变

从熵理论的独特视角看待为什么人类必须进行经济发展方式和生活方式的转变以及如何进行发展方式和生活方式的转变,以期为当前的人类行为提供参照标准和指导思想。指出只有在科学理论的指导下,遵循正确的判别标准和思路,对既有的、必须改弦易辙的生产、分配、交换和消费等经济活动的方式方法进行梳理、纠正、摈弃,从而在现实和未来的负熵社会中建立一条逼近曲线,使传统的活动逐步转到正确的方向上来。     

Comparison between method of moments and entropy regularization algorithm applied to parameter estimation for mixed-Weibull distribution

Mixed-Weibull distribution has been used to model a wide range of failure data sets, and in many practical situations the number of components in a mixture model is unknown. Thus, the parameter estimation of a mixed-Weibull distribution is considered and the important issue of how to determine the number of components is discussed. Two approaches are proposed to solve this problem. One is the method of moments and the other is a regularization type of fuzzy clustering algorithm. Finally, numerical examples and two real data sets are given to illustrate the features of the proposed approaches.     

Renyi's entropy for residual lifetime distribution

In the present paper, we introduce and study Renyi's information measure (entropy) for residual lifetime distributions. It is shown that the proposed measure uniquely determines the distribution. We present characterizations for some lifetime models. Further, we define two new classes of life distributions based on this measure. Various properties of these classes are also given.