洛克论宗教宽容

洛克的《论宗教宽容》,是现代西方处理宗教冲突的基本理论依据。但新近发现的文献表明,洛克早年是反对宗教宽容的。本文将洛克对宗教宽容的几次讨论放在十六十七世纪英国宗教冲突的政治背景之下,指出洛克前后期虽然主张不同,但都遵循同样的理论基础,即《第二篇政府短论》中提出的"神法—人法—兄弟法—私人法"的法律结构,只是针对英国现实问题,在这一框架当中适当调整。无论他主张宗教宽容还是不宽容,目的都是为了清除天主教在英国政治中的势力,围绕圣公会建立一个独立的民族国家。他晚年与普洛斯特有过多次争论,但所涉及的并不是原则性的分歧。我们今天思考宗教冲突与宽容问题,应该看到洛克宗教宽容思想的理论基础。     

Contre-exemple au théorème de P.C. Consul sur la factorisation des distributions de Poisson généralisées

This note exhibits two independent random variables on integers, X₁ and X₂, such that neither X₁ nor X₂ has a generalized Poisson distribution, but X₁ + X₂ has. This contradicts statements made by Professor Consul in his recent book.     

论中国治水自然观

中国古代农业社会,人类顺水之性的因任自然观,产生了自然水利思想;近代工业社会征服自然的观点,产生了工程水利思想;现代生态时代人与自然和谐相处,产生了资源水利思想。     

Analysis of Competing Risks by Using Bayesian Smoothing

We consider the competing risks set-up. In many practical situations, the conditional probability of the cause of failure given the failure time is of direct interest. We propose to model the competing risks by the overall hazard rate and the conditional probabilities rather than the cause-specific hazards. We adopt a Bayesian smoothing approach for both quantities of interest. Illustrations are given at the end.     

SCP视角的资源产业组织及其优化的理论分析

SCP理论是现代西方产业组织(IO)理论中占主导地位的理论。文章试图将该理论运用于自然资源产业问题研究中,也就是运用SCP理论的分析框架来研究资源产业组织问题即自然资源产业内部的资源生产经营企业之间的相互关系,这种理论分析旨在促进资源产业组织不断地趋于合理化和优化。     

自然语言理解综述

为了解决计算机理解自然语言问题，产生了自然语言理解这一研究方向，文章归纳了自然语言理解研究中的一些关键问题，整理了国内外自然语言理解技术发展的简史，讨论了自然语言理解技术的主要进展，并针对重大的研究工作做了粗浅的评述。最后对该学科的研究前景进行了展望。     

X波段六角晶系铁氧体吸收剂

讨论了六角晶系铁氧体[(Zn_(1-x)CO_x)_2-W]系列的磁特性及吸波特性。介绍了用特殊工艺制备这种材料的工艺原理及制作过程。用这种吸收剂制备成的吸波涂层具有吸波特性好,工作频带宽等特点。     

Bayesian estimation for the Pareto income distribution

The Bayes estimators of the Gini index, the mean income and the proportion of the population living below a prescribed income level are obtained in this paper on the basis of censored income data from a pareto income distribution. The said estimators are obtained under the assumptions of a two-parameter exponential prior distribution and the usual squared error loss function. This work is also extended to the case when the income data are grouped and the exact incomes for the individuals in the population are not available. The method for the assessment of the hyperparameters is also outlined. Finally, the results are generalized for the doubly truncated gamma prior distribution. Now deceased.     

Reference priors for a product of normal means when variances are unknown

The reference priors of Berger and Bernardo (1992) are derived for normal populations with unknown variances when the product of means is of interest. The priors are also shown to be Tibshirani's (1989) matching priors.     

Conditionally Reducible Natural Exponential Families and Enriched Conjugate Priors

Consider a standard conjugate family of prior distributions for a vector-parameter indexing an exponential family. Two distinct model parameterizations may well lead to standard conjugate families which are not consistent, i.e. one family cannot be derived from the other by the usual change-of-variable technique. This raises the problem of finding suitable parameterizations that may lead to enriched conjugate families which are more flexible than the traditional ones. The previous remark motivates the definition of a new property for an exponential family, named conditional reducibility. Features of conditionally-reducible natural exponential families are investigated thoroughly. In particular, we relate this new property to the notion of cut, and show that conditionally-reducible families admit a reparameterization in terms of a vector having likelihood-independent components. A general methodology to obtain enriched conjugate distributions for conditionally-reducible families is described in detail, generalizing previous works and more recent contributions in the area. The theory is illustrated with reference to natural exponential families having simple quadratic variance function.