Record Values and Surviving Glacial Moraines

Estimating the number of glacial advances from surviving glacial debris can, amazingly enough, be cast as a records problem for which there is a substantial statistical literature. As a result, instructors may illustrate method of moments and maximum‐likelihood estimation techniques with an interesting problem in the physical sciences.     

课件制作中插接Flash动画的方法

利用ActiveX控件或包以及启动程序/打开文档等工具,可以在PowerPoint、方正奥思、 Authorware中插接Flash动画.实践证明这些插接Flash动画的方法是切实可行的.     

法国马赛一大的汉语教育及启示

马赛一大中文系汉语教学历史悠久,有健全的学制和一整套与之相适应的课程,如语言基础课、中国文化课、方法论课等。教学模式主要以语法课教学为主,辅之以写作课、阅读课、口语课、听力课等复练课。课程设置具有以下特色:注重语言技能课程的教学;重视中国文化的传播;注重开拓学生的知识面;注重方法论课程的开设。     

基于时间序列的退化型产品可靠性评估方法

在不假定退化轨道的基础上,提出利用时间序列的方法,使用ARIMA模型对退化数据进行建模,拟合其退化规律,预测失效寿命,进而进行可靠性评估.并给出实例,说明该方法具有较好的适用性和有效性.     

美国《开端计划执行标准》评介

美国开端计划是由美国联邦政府制订并推行的一项主要针对处境不利学前儿童及其家庭的国家行动计划,作为扩大教育机会、保障教育公平的重要手段,为保证并促进其实施与质量,联邦政府自计划实施之初就为它制订了一套执行标准,并不断根据现实发展的需要对其进行修订.开端计划执行标准对开端计划涵盖的七种服务都作了详细具体的规定,其文本由标准概要、服务规划、社会服务标准、儿童健康和发展服务标准、个人教育项目服务标准、营养服务标准、家长参与服务标准、合作服务项目标准八大部分组成,并提供了多种运作方式供地方获权机构与授权办事处根据自身情况灵活选择与运用.此外,执行标准还强调组成包括政策理事会、政策委员会和家长委员会在内的开端计划治理机构,以加强对开端计划执行过程的监督与对其实施效果的监测和反馈,从而保证为处境不利儿童及其家庭提供高质量的多方面服务.     

关于Lucas数的一个程序解

在分析Lucas数列{Ln}的有关性质及相关规律的基础上定义新的广义Lucas数，利用TURBOC语言，给出了Lucas数及广义Lucas数的一个程序解，从而使其在组合数学以及工程技术中的应用范围进一步拓宽。     

A hybrid generative/discriminative approach to text classification with additional information

This paper presents a classifier for text data samples consisting of main text and additional components, such as Web pages and technical papers. We focus on multiclass and single-labeled text classification problems and design the classifier based on a hybrid composed of probabilistic generative and discriminative approaches. Our formulation considers individual component generative models and constructs the classifier by combining these trained models based on the maximum entropy principle. We use naive Bayes models as the component generative models for the main text and additional components such as titles, links, and authors, so that we can apply our formulation to document and Web page classification problems. Our experimental results for four test collections confirmed that our hybrid approach effectively combined main text and additional components and thus improved classification performance.     

Growth of the Program for Cooperative Cataloging in Canada

Abstract

Canadian participation in the Program for Cooperative Cataloging began in 1998 when Memorial University of Newfoundland joined NACO to counter the lack of locally relevant authority data. Different circumstances operated for each of the early adopters. McGill University joined SACO first, in 1999, and NACO only in 2009. Concordia University joined NACO in 2011. Other libraries joined forces through the Canada Funnel, established in 2005. Since 2015, the number of independent members has grown, and more Canadians have begun participating in the governance and working groups of the PCC. This coincides with increased interest in internationalization within the PCC itself.     

美国高等教育"肯定性行动计划"政策价值分析

美国高等教育"肯定性行动计划"政策旨在扶助社会弱势群体,体现了教育公平的价值追求.它蕴涵了两个层次的政策价值选择.美国国内对该政策合法性的争论以及政府近年来政策倾向的改变,制约了该政策的有效性程度.