Asymptotic Theory of Outlier Detection Algorithms for Linear Time Series Regression Models

Outlier detection algorithms are intimately connected with robust statistics that down‐weight some observations to zero. We define a number of outlier detection algorithms related to the Huber‐skip and least trimmed squares estimators, including the one‐step Huber‐skip estimator and the forward search. Next, we review a recently developed asymptotic theory of these. Finally, we analyse the gauge, the fraction of wrongly detected outliers, for a number of outlier detection algorithms and establish an asymptotic normal and a Poisson theory for the gauge.     

试析新媒介环境下的网络问政

"网络问政"已经成为政府执政的重要补充方式,且作用日益显著。本文界定了网络问政的内涵,分析了网络问政的三种主要形式,并进而对政务微博的发展概况和运用中的关系把握做了尝试性探讨。     

Twenty-First Century Lesbian Studies,edited by Noreen Giffney and Katherine O'Donnell

Using a convenience sample of 157 undergraduates, this study explored the likeability ratings of target characters from selected film clips who were described as gay or heterosexual as they associated with a gay-described foil character (i.e., a character against which the target is compared). As predicted, male respondents who strongly endorsed anti-gay prejudice viewed gay-described targets more favorably than heterosexual-described targets when each target was paired with a gay foil. Further, this pattern of biased ratings by high-prejudice male participants against our heterosexual target differentiated these participants from both low-prejudice male and high-prejudice female respondents. In contrast, but as hypothesized, high-prejudice female respondents compared to high-prejudice males rated heterosexual-described targets more favorably than they rated gay-described targets.     

朝鲜洪大容《乾净会友录》与清代文人

燕行录是研究前近代中韩关系的重要史料,其中18世纪朝鲜文人洪大容所著《乾净笔谭》的价值尤为贵重。洪大容于1765年随朝鲜使节团来到北京,与数名中国文人进行笔谈,回国后将这一经历写成《乾净衕会友录》,两年之后改编为《乾净笔谭》,主要内容均为笔谈记录。前后两个版本之间进行的删改修订,反映出当时两国文人在不同的大环境下有着政治、学术、女性观等认知上的差异。     

The Box–Cox Transformation and Non‐Iterative Estimation Methods for Ordinal Log‐Linear Models

Recently Beh and Farver investigated and evaluated three non‐iterative procedures for estimating the linear‐by‐linear parameter of an ordinal log‐linear model. The study demonstrated that these non‐iterative techniques provide estimates that are, for most types of contingency tables, statistically indistinguishable from estimates from Newton's unidimensional algorithm. Here we show how two of these techniques are related using the Box–Cox transformation. We also show that by using this transformation, accurate non‐iterative estimates are achievable even when a contingency table contains sampling zeros.     

企业家演讲中的隐喻论证

隐喻性表达不仅可以使演讲变得形象生动，而且有时候会产生很强的劝说功能。在概念隐喻理论与图尔敏论证模型的基础上，从隐喻论证和语用论辩的角度，对企业家（以马云为例）演讲中所存在的隐喻性表达进行分析，探讨隐喻论证中的“反驳”要素，以及隐喻论证的劝说机制。     

能行中国之道则中国之主——郝经“用夏变夷”的思想和实践

儒家思想在由非汉族统治全国的元朝依然能顺利传延,虽然儒家思想的内在性质非常重要,但如果忽视人在其中的因素,则无法对该问题完全解释。选取该时期著名的思想家郝经为研究对象,运用文本还原、历史逻辑相统一的研究方法,通过对郝经＂能行中国之道,则中国之主＂的深入分析,发现汉儒在少数民族优势地位下对中国文化的理解及其反应,郝经的＂用夏变夷＂思想及实践对于历史发展具有重要的推动作用。     

“重陆轻海”与“通洋裕国”之海洋观刍议

明清两朝正处于世界性海洋历史发展的"千古变局"时代,但统治者沿袭传统模式,在立国思想上"重农抑商"、"重陆轻海",在国防战略上以"禁海"代替海防,禁海迁界、"守土防御",反映其海洋观念的淡薄;而东南沿海地方官员,尤其郑成功"通洋裕国"思想的提出和实践,显露出"以商立国",向海洋空间发展的意涵;传统时代"重陆轻海"与"通洋裕国"所反映的海洋观念,对国家民族发展的影响在某种程度上可以忽略不计,但大航海时代,海洋作为人类的第二生存空间影响到世界历史走向和发展格局时,"重陆轻海"观念所带来的深层影响会因此而改变国家和民族的命运。     

文理兼招专业高等数学课程教学改革探索——以长春工程学院文理兼招专业为例

立足于本校实际情况,论述了文理兼招专业高等数学课程的教学现状,分析其成因,提出了文理兼招专业高等数学课程教学的一些改革措施。