汉诗英译中动词的锤炼

诗歌创作讲究炼字。诗歌翻译 ,作为一种跨语言文化的二度创作活动 ,更加讲究字、词的推敲锤炼。通过翻译实例分析可以发现 ,汉诗英译中动词的锤炼是以用词夸张、用词反常和用词灵活为手段 ,服务于译诗的情感性、准确性及生动性三个根本目的     

一种用于Optical Crossbar的自适应分组汇聚算法

在对现有分组汇聚机制进行深入分析的基础上,考虑不同网络环境下的流量特性不同,提出了一种动态网络流量自适应分组汇聚算法。理论分析及仿真实验表明,该算法可自适应网络流量特性的变化,通过优化汇聚分组长度解决连续阻塞问题、提高汇聚分组利用率,同时兼顾时间门限,使之在低流量负载下也能最大程度保证汇聚时延,较好地弥补传统算法的不足,保证了Optical Crossbar网络对于实时流量的低时延和高传输效率．     

日本近代町村会的起源与形成

日本町村会的形成是日本地方社会传统以及启蒙思想、自由民权运动从下推动和政府从上引进的结果,是在上下合力作用下产生的。双方的作用都很重要,缺乏任何一方的推动,近代的町村会实际上都很难形成并巩固下来。日本近代町村会尽管与战后的町村会不可同日而语,但它的成立在日本地方制度的历史上,还是有着重要的意义,其进步性应予肯定。     

钢管自动跟踪及在线自动定长切割控制器的软硬件设计

采用单片机实现了焊管机生产线钢管自动定长切割的控制，并使其具有结构小、功能强控制精度高等优点；介绍了控制器的软硬件设计思想和设计方法．     

英语修辞学中措辞的研究

语言是人类最重要的交际工具。修辞则是充分的运用和发挥语言的各种表现手段,在交际中达到最佳的表达效果。措辞乃其中基本的表现手段之一。现代修辞学中的措辞涉及到纯正性,精确性和适合性这三个不可分割的方面。只有正确运用这三个原则,才能达到最佳的说话艺术和写作技巧。     

Predicting Insurance Losses Under Cross-Classification: A Comparison of Alternative Approaches

Various mathematical and statistical models for estimation of automobile insurance pricing are reviewed. The methods are compared on their predictive ability based on two sets of automobile insurance data for two different states collected over two different periods. The issue of model complexity versus data availability is resolved through a comparison of the accuracy of prediction. The models reviewed range from the use of simple cell means to various multiplicative-additive schemes to the empirical-Bayes approach. The empirical-Bayes approach, with prediction based on both model-based and individual cell estimates, seems to yield the best forecast.     

Classification with minimum ambiguity under distribution heterogeneity

The traditional classification is based on the assumption that distribution of indicator variable X in one class is homogeneous. However, when data in one class comes from heterogeneous distribution, the likelihood ratio of two classes is not unique. In this paper, we construct the classification via an ambiguity criterion for the case of distribution heterogeneity of X in a single class. The separated historical data in each situation are used to estimate the thresholds respectively. The final boundary is chosen as the maximum and minimum thresholds from all situations. Our approach obtains the minimum ambiguity with a high classification accuracy allowing for a precise decision. In addition, nonparametric estimation of the classification region and theoretical properties are derived. Simulation study and real data analysis are reported to demonstrate the effectiveness of our method.     

简单平均组合预测有效性的应用分析

通过实例分析,说明了当序列模式变动较大时,简单平均组合预测模型相对于其他组合预测模型的优越性,并且基于样本段的拟合精度不足以说明组合预测模型的外推预测精度。文中的分析对于组合预测模型的选择和应用具有实际参考价值。     

网络民粹主义的躁动:从虚拟集聚到社会运动

网络民粹主义是近年来在互联网上兴起的一股政治思潮。它由两种力量所构成,一种是网络批判现实主义,另一种是网络民族主义。前者以国家内部的社会矛盾为主要关注点,以反权威、反精英主义的底层姿态出现;后者则以反对全球化、反对西方国家为内容,以极端排外性的情绪表达为形式。尽管网络民粹主义表达了来自社会底层的诉求,强调了对改革公平性的关注,具有一定的合理性,但由于它利用极端的、偏激的,甚至暴力性的语言对社会转型中出现的问题和矛盾进行非理性表达,加剧了不同群体之间的对抗,激化了不同阶层之间的不信任和仇视,并不时地与现实中的集体性事件结合起来,试图推动民粹主义社会运动的形成,这在客观上造成了激化社会矛盾、分裂社会的后果。消解网络民粹主义的滋生和蔓延,最根本的方法在于促进经济良性发展前提下的社会公平、公正。一方面,应完善普通民众和底层社会政治参与的途径,从各个层次、各个领域最大限度地扩大公民有序政治参与,畅通利益表达渠道;另一方面,在保持经济稳步发展的基础上,积极缩小贫富差距,加强社会保障建设,改善底层民众的生活条件,在经济领域实现分配正义。     

A sequential conditional probability ratio test procedure for comparing diagnostic tests

In this paper, we derive sequential conditional probability ratio tests to compare diagnostic tests without distributional assumptions on test results. The test statistics in our method are nonparametric weighted areas under the receiver-operating characteristic curves. By using the new method, the decision of stopping the diagnostic trial early is unlikely to be reversed should the trials continue to the planned end. The conservatism reflected in this approach to have more conservative stopping boundaries during the course of the trial is especially appealing for diagnostic trials since the end point is not death. In addition, the maximum sample size of our method is not greater than a fixed sample test with similar power functions. Simulation studies are performed to evaluate the properties of the proposed sequential procedure. We illustrate the method using data from a thoracic aorta imaging study.