Dependence function for continuous bivariate densities

The notion of cross-product ratio for discrete two-way contingency table is extended to the case of continuous bivariate densities. This results in the “local dependence function” that measues the margin-free dependence between bivariate random variables. Properties and examples of the dependence function are discussed. The bivariate normal density plays a special role since it has constant dependence. Continuous bivariate densities can be constructed by specifying the dependence function along with two marginals in analogy to the construction of two-way contingency tables given marginals and patterns of interaction. The dependence function provides a partial ordering on bivariate dependence.     

辽宁“十二五”工业经济发展规划的战略思考——基于产业竞争力的视角

基于产业竞争理论分析辽宁工业经济发展的现状，针对其中存在的利润率低、工业内部配套能力弱、产业之间发展不协调和民间投资被挤出等结构性问题分析其产生原因，认为政府主导资源推动型的发展方式和政府产业规划的雷同性及路径依赖性是造成结构性失衡的主要原因。为此，建议政府在编制辽宁“十二五”工业经济发展规划时应考虑效益指标，按产业发展周期和要素、需求条件等规划重点发展产业，并处理好支柱产业与支撑产业、相关产业之间的关系。     

改革是新形势下实现人民利益的有效路径——学习党的十七届五中全会精神

党的十六大以来,以胡锦涛为总书记的党中央领导集体,继续解放思想,坚持改革开放,推动科学发展,促进社会和谐,为践行人民利益观呕心沥血。＂改革＂作为决定当代中国命运的关键选择,成为贯穿中国特色社会主义事业始终的关键词,依然是党的十七届五中全会的核心理念。全会深入分析了今后一个时期我国经济社会发展的国内外形势,提出通过经济、政治、文化等方面的深化改革进一步实现人民经济、政治和文化利益。     

A generalized negative binomial and applications

A generalized negative binomial distribution is derived from the Markov Bernoulli sequence of successes and failures. We study the properties and applications of this distribution. The properties are illustrated by two examples of discrete time queueing systems. The distribution is then fitted to two data sets, the eruption record of Mt. Sangay, and a record of computer disk failure accesses. In the first case there is a strong serial dependence in the data and the generalized negative binomial provides a good fit, while in the second case, although there is a significant serial dependence, it is insufficient to justify the additional parameter of the distribution. We conclude by demonstrating the usefulness of the distribution in the field of statistical quality control.     

试论中国社团的“官办”特性——路径依赖分析

新制度经济学中的路径依赖理论认为,路径依赖的产生源于旧体制中既得利益集团的阻挠和非正式制度安排的影响,而打破"锁定"状态除了从自身寻求出路外,往往还要借助于外部效应。这一理论对于解释中国社团的官办特性具有较强的适用性。中国社团的官办特性说到底是计划体制下的一种路径依赖,倘若对造成社团官办特性的种种路径依赖因素进行有意识的制度创新,将有助于减少路径依赖的负面影响,使我国的社团更能朝着良性的轨迹发展。     

回弹模拟精度的主要影响因素

板料成形过程中普遍存在着回弹问题,特别在弯曲和浅拉深过程中回弹现象更严重,在板料成形领域,回弹已成为模具设计中要考虑的关键问题。本文从成形过程模拟和回弹过程模拟两方面对影响回弹模拟精度的主要因素进行了研究,指出限制回弹模拟精度提高的重要因素和提高回弹模拟精度的主要措施。     

Lattice path combinatorics for multiple product identities

Lattice paths are enumerated as walks on a lattice under the Delannoy criterion of vertical, horizontal and upward diagonal steps. Delannoy recursions are generalized for arbitrary weights in each of these directions, where the row elements of the Delannoy triangles correspond to lattice paths for all walks at a given length.     

Strong laws of large numbers for dependent heterogeneous processes: a synthesis of recent and new results

This paper surveys recent developments in the strong law of large numbers for dependent heterogeneous processes. We prove a generalised version of a recent strong law for Lz-mixingales, and also a new strong law for Lpmixingales. These results greatly relax the dependence and heterogeneity conditions relative to those currently cited, and introduce explicit trade-offs between dependence and heterogeneity. The results are applied to proving strong laws for near-epoch dependent functions of mixing processes. We contrast several methods for obtaining these results, including mapping directly to the mixingale properties, and applying a truncation argument.     

Open Review of Science Publications

Publication of scientific research in print is traditionally peer reviewed anonymously prior to publication, which is a time-tested process but has serious limitations. The advent of the Internet permits postpublication open review online after minimal review by the editors or the author-selected reviewers, which can be quick, that permits the authors to revise the content. Most meritorious articles published online may be selected for publication in print as annual or biennial collections.     

1969年前后美国改变对华遏制政策的理论基础与路径选择

1969年前后,国际冷战格局出现了美守苏攻态势,美国政府和领导人从国家利益出发迅速改变对华遏制政策,意图利用中国因素抗衡苏联。美国联合中国抗衡苏联的外交政策改变了国际冷战格局,影响十分深远。