Parametric Inference in Stationary Time Series Models with Dependent Errors

This article is concerned with inference for the parameter vector in stationary time series models based on the frequency domain maximum likelihood estimator. The traditional method consistently estimates the asymptotic covariance matrix of the parameter estimator and usually assumes the independence of the innovation process. For dependent innovations, the asymptotic covariance matrix of the estimator depends on the fourth‐order cumulants of the unobserved innovation process, a consistent estimation of which is a difficult task. In this article, we propose a novel self‐normalization‐based approach to constructing a confidence region for the parameter vector in such models. The proposed procedure involves no smoothing parameter, and is widely applicable to a large class of long/short memory time series models with weakly dependent innovations. In simulation studies, we demonstrate favourable finite sample performance of our method in comparison with the traditional method and a residual block bootstrap approach.     

中医基本名词术语英译技巧及规范性

中医独特的语言文化特征决定了中医基本名词术语英译的重要意义和潜在困难。在实际操作中,人们在中医基本名词术语英译领域往往采取不同的翻译技巧和方法,这突显了其规范性研究的重要性。中医基本名词术语英译的技巧和规范性有着密切的联系。     

频域光照归一化的人脸识别

为了降低人脸识别对环境条件的要求,克服光照对人脸识别的影响,通过分析人脸图像的幅频特性和相频特性,提出了频域光照归一化的人脸识别,对任何光照条件下采集的图像经过归一化后,光照与训练库中完全相同,同时保留了人脸的可区分性。人脸之间差异的信息量一般较少,运用最小非零特征向量作为人脸特征。实验仿真表明,与传统方法相比,频域光照归一化人脸识别方法对光照变化具有鲁棒性。     

简论1968-1972年日本与苏联的关系

1968-1972年的国际大环境依然是美苏冷战在继续。在远东,1968年1月,苏联坦克部队进驻蒙古。1969年3月,苏军入侵中国珍宝岛。苏、日继续为“北方领土”问题争执,苏联称日、苏“领土问题已经解决”,但日本的当权者一再要求苏联归还“北方领土”。影响日苏关系的因素错综复杂,1972年1月,苏联外长访日表现出的对日友善是为了在外交上牵制中国,但美国总统尼克松的访华(1972.2)与日中关系正常化(1972.9)表明苏联未达到联日孤立中国的目的。     

疫情防控常态化形势下中国大学生管理模式探析

疫情防控常态化形势下的大学生管理工作,要充分认识当前存在的困难问题,借鉴和发扬国内外校园防疫优秀成果,实现大学生管理理念从被动式、低效型、分散化向主动式、高效型、系统化转变。要在疫情防控常态化形势下,构建起“一主线、双统筹、三保障”的大学生管理构架。紧紧围绕“三全育人”工作主线,统筹抓好新冠疫情防控和学生日常管理,不断强化体制机制保障、舆论氛围保障和技术物资保障。从思想管理、学习管理、生活管理、组织管理四个维度加强管理模式创新。将疫情防控内容、防控理念、防控举措和防控机制有机融入其中,使疫情防控常态化形势下的大学生管理模式实现新的突破。     

基础素描教学的规范意识

当今多元化的教学思路,为学生提供了更加宽广的自学成才之路。但学生在求新求异的思维支配下,往往由于对一些基本的造型意识的缺乏或不重视而陷入迷茫、后劲不足的境地。所以,在基础造型教学中提出规范性、系统性的训练目标,有助于学生对概念的清晰、目的的明确,为深入学习做足准备。     

从语言建设看修辞的原则

修辞原则是修辞学界讨论较多的话题,众多学者从不同角度对修辞原则进行了阐述。本文从语言建设的角度来探讨,认为修辞与语言建设关系密切,修辞应该遵循规范原则和文明原则,要发挥修辞对语言建设的作用,推动修辞学本身的发展。     

The Normalization Project: The Progress and Limitations of Promoting LGBTQ Research and Teaching in Mainland China

ABSTRACT

This article reflects on the author’s own experience of promoting LGBTQ research and teaching in mainland China, where the fight for institutional legitimacy and recognition has been a core element in this journey. After a historical survey of how Chinese LGBTQ research has grown out of the particular sociopolitical milieu, it focuses on a discussion of the “normalization project”—a key approach to both create and expand the institutional space for LGBTQ studies. Apart from the positive effects this project entails, this article also critically examines its limitations by bringing into the picture certain critical perspectives.     

Approximating the Conway–Maxwell–Poisson distribution normalization constant

By adding a second parameter, Conway and Maxwell created a new distribution for situations where data deviate from the standard Poisson distribution. This new distribution contains a normalization constant expressed as an infinite sum whose summation has no known closed-form expression. Shmueli et al. produced an approximation for this sum but proved that it was valid only for integer values of the second parameter, although they conjectured it was also valid for non-integers. Here we prove their conjecture to be true and discuss for what range of parameters the approximation can be accurately applied.     

论孔子"正名"思想与社会的可持续发展

应借鉴孔子的各循其礼、各守其道、各尽其心力、各享其名分的“正名”思想。如能使之由人们自觉地执行到自然运行 ,逐渐形成以做好本职工作去维护人类长远利益的社会风气 ,那么 ,一个国家、一个地区就会大有可持续发展的潜力