隐喻的分类及其认知功能探索

文章通过综合Lakoff＆Johnson,GeorgeLakoff,BipinIndurkhya,Mey,Ungerer＆Schmid等学者关于隐喻的论述,将隐喻分为结构隐喻,方位隐喻,本体隐喻和创造相似性的隐喻等四种类型并讨论了它们的认知功能;并探索性地运用投射性隐喻过程来解释由Joos提出,易仲良发展了的英语动词过去时"距离性"语法意义拓展的过程。     

Was the conservative majority predictable?

Canada's $41{\rm st}$ national general election saw the Conservative Party increase its seat count from 143 to 166, thus giving it a majority of the national parliament's 308 seats. By contrast, nearly all of the pre‐election seat count forecasts predicted a Conservative minority only. We examine the extent to which simple statistical models could or could not have predicted the Conservative majority prior to the election. We conclude that, by using data from the previous (2008) election appropriately, the Conservative majority should have been anticipated as the most likely outcome. The Canadian Journal of Statistics 39: 721–733; 2011. © 2011 Statistical Society of Canada     

Autocovariance Estimation in Regression with a Discontinuous Signal and m‐Dependent Errors: A Difference‐Based Approach

We discuss a class of difference‐based estimators for the autocovariance in nonparametric regression when the signal is discontinuous and the errors form a stationary m‐dependent process. These estimators circumvent the particularly challenging task of pre‐estimating such an unknown regression function. We provide finite‐sample expressions of their mean squared errors for piecewise constant signals and Gaussian errors. Based on this, we derive biased‐optimized estimates that do not depend on the unknown autocovariance structure. Notably, for positively correlated errors, that part of the variance of our estimators that depend on the signal is minimal as well. Further, we provide sufficient conditions for ‐consistency; this result is extended to piecewise Hölder regression with non‐Gaussian errors. We combine our biased‐optimized autocovariance estimates with a projection‐based approach and derive covariance matrix estimates, a method that is of independent interest. An R package, several simulations and an application to biophysical measurements complement this paper.     

Geometry and Degrees of Freedom of Linearly Constrained Generalized Lasso

The least squares fit in a linear regression is always unique even when the design matrix has rank deficiency. In this paper, we extend this classic result to linearly constrained generalized lasso. It is shown that under a mild condition, the fit can be represented as a projection onto a polytope and, hence, is unique no matter whether design matrix X has full column rank or not. Furthermore, a formula for the degrees of freedom is derived to characterize the effective number of parameters. It directly yields an unbiased estimate of degrees of freedom, which can be incorporated in an information criterion for model selection.     

Construction of some new families of nested orthogonal arrays

Nested orthogonal arrays have been used in the design of an experimental setup consisting of two experiments, the expensive one of higher accuracy being nested in a larger and relatively less expensive one of lower accuracy. In this paper, we provide new methods for constructing two types of nested orthogonal arrays.     

Bring publics back into networked public relations research: A dual-projection approach for network ecology

This essay critiques the absence of publics in networked public relations research, and proposes the dual-projection approach as a solution to simplify and analyze the multi-mode public relations network ecology (Yang & Taylor, 2015). Compared to most previous studies that employ organization-centric networks where ties stand for hyperlinks, collaborations, or coalitions, the new approach projects organization-public relationships and public-public relationships onto interorganizational ties. By doing so, it (1) brings publics back into networked public relations research; (2) presents organizations and publics—the two most important subjects of public relations research—equally in the same network, (3) drives literature further away from a dyadic view of relationship management, and (4) constitutes one of the first techniques that can analyze direct and timely consequences of organziation-public relationships in the network ecology. To demonstrate the new approach, the network of publics overlap is introduced and applied to US-based LGBTQ advocacy groups. The essay also discusses the theoretical inquiries needed to further dual-projection networks, and invites scholars to create novel ways to incorporate publics into their network studies using dual projection.     

Maximum expected entropy transformed Latin hypercube designs

Existing projection designs (e.g. maximum projection designs) attempt to achieve good space-filling properties in all projections. However, when using a Gaussian process (GP), model-based design criteria such as the entropy criterion is more appropriate. We employ the entropy criterion averaged over a set of projections, called expected entropy criterion (EEC), to generate projection designs. We show that maximum EEC designs are invariant to monotonic transformations of the response, i.e. they are optimal for a wide class of stochastic process models. We also demonstrate that transformation of each column of a Latin hypercube design (LHD) based on a monotonic function can substantially improve the EEC. Two types of input transformations are considered: a quantile function of a symmetric Beta distribution chosen to optimize the EEC, and a nonparametric transformation corresponding to the quantile function of a symmetric density chosen to optimize the EEC. Numerical studies show that the proposed transformations of the LHD are efficient and effective for building robust maximum EEC designs. These designs give projections with markedly higher entropies and lower maximum prediction variances (MPV''s) at the cost of small increases in average prediction variances (APV''s) compared to state-of-the-art space-filling designs over wide ranges of covariance parameter values.     

论翻译单位的本质

探讨翻译单位研究的形式-语义途径和功能途径的不足之处,并指出翻译单位研究依托于传统语言学理论有着极大的局限性,最后论述了翻译单位的本质,明确这一本质能更好地避免翻译实践的各种不良倾向.     

A cost of living longer: Projections of the effects of prospective mortality improvement on economic support ratios for 14 advanced economies

The economic implications of increasing life expectancy are important concerns for governments in developed countries. The aims of this study were as follows: (i) to forecast mortality for 14 developed countries from 2010 to 2050, using the Poisson Common Factor Model; (ii) to project the effects of the forecast mortality patterns on support ratios; and (iii) to calculate labour force participation increases which could offset these effects. The forecast gains in life expectancy correlate negatively with current fertility. Pre-2050 support ratios are projected to fall most in Japan and east-central and southern Europe, and least in Sweden and Australia. A post-2050 recovery is projected for most east-central and southern European countries. The increases in labour force participation needed to counterbalance the effects of mortality improvement are greatest for Japan, Poland, and the Czech Republic, and least for the USA, Canada, Netherlands, and Sweden. The policy implications are discussed.     

2018年国际原油价格分析与趋势预测

2017年,随着世界经济的复苏和OPEC主导的限产协定效果的显现,下半年国际原油市场持续攀升。2018年的油价将延续2017年的走势。从全球经济形势、供需基本面因素、美元汇率和地缘政治风险等方面,对2018年油价走势进行了发展态势展望和预测分析。综合考虑影响油价涨跌正负效应,在当前全球经济形势、国际原油供给和油价影响因素态势发展下,2018年油价将会相对稳定,全年或将出现阶段性大幅度涨跌,但是整体还将保持上升态势,预计Brent、WTI原油均价将会达到54~64美元/桶和52~62美元/桶。