Threshold Estimation for Stochastic Processes with Small Noise

Consider a process satisfying a stochastic differential equation with unknown drift parameter, and suppose that discrete observations are given. It is known that a simple least squares estimator (LSE) can be consistent but numerically unstable in the sense of large standard deviations under finite samples when the noise process has jumps. We propose a filter to cut large shocks from data and construct the same LSE from data selected by the filter. The proposed estimator can be asymptotically equivalent to the usual LSE, whose asymptotic distribution strongly depends on the noise process. However, in numerical study, it looked asymptotically normal in an example where filter was chosen suitably, and the noise was a Lévy process. We will try to justify this phenomenon mathematically, under certain restricted assumptions.     

Some alternative bivariate Kumaraswamy models

In this article we discuss various strategies for constructing bivariate Kumaraswamy distributions. As alternatives to the Nadarajah et al. (2011) bivariate model, four different models are introduced utilizing a conditional specification approach, a conditional survival function approach, and an Arnold–Ng bivariate beta distribution construction approach. Distributional properties for such bivariate distributions are investigated. Parameter estimation strategies for the models are discussed, as are the consequences of fitting two of the models to a particular data set involving the proportion of foggy days at two different airports in Colombia.     

The Othering of Muslims: Discourses of Radicalization in the New York Times, 1969–2014

In this article, I engage with Edward Said's Orientalism and various perspectives within the othering paradigm to analyze the emergence and transformation of radicalization discourses in the news media. Employing discourse analysis of 607 New York Times articles from 1969 to 2014, this article demonstrates that radicalization discourses are not new but are the result of complex sociolinguistic and historical developments that cannot be reduced to dominant contemporary understandings of the concept or to singular events or crises. The news articles were then compared to 850 government documents, speeches, and other official communications. The analysis of the data indicates that media conceptualizations of radicalization, which once denoted political and economic differences, have now shifted to overwhelmingly focus on Islam. As such, radicalization discourse now evokes the construct radicalization as symbolic marker of conflict between the West and the East. I also advanced the established notion that the news media employ strategic discursive strategies that contribute to conceptual distinctions that are used to construct Muslims as an “alien other” to the West.     

《纲要》解读及大学“十二五”发展战略规划制定

《国家中长期教育改革和发展规划纲要（2010-2020）》的编制和出台是我国教育史上的一次创举,正确领会纲要精神,全面学习纲要内容,对我国教育发展有着举足轻重的作用。成功的现代大学重视发展战略规划的经验值得我们学习。今年是“十一五”规划的结束年,也是“十二五”规划的制定年,做好大学发展战略规划的编制工作不仅关系到学校的持续健康发展,也关系着教育的明天。     

文体学盛会:热点·视点·观点

通过分析"2010年文体学国际研讨会暨第七届全国文体学研讨会"的会议论文和代表大会发言,梳理了本次学术盛会的独到特点,即热点突出、视点多样、观点鲜明,集中反映了当前国内外文体学的研究现状与发展趋势。