深化多媒体教学推进远程教育的发展

本文通过对国内外现代远程教育的探讨,对多媒体教学的分析,提出了我国高等教育要赶超世界先进水平、发展远程教育目前所面临的主要问题及对策.     

A note on measures of similarity based on centrality

This note presents a measure of similarity between connected nodes in terms of centrality based on Euclidean distances, and compares it to ‘assortative mixing’ [Newman, M.E.J., 2002. Assortative mixing in networks. Physical Review Letters 89, 208701], which is based on Pearson correlation coefficient. This study suggests that the measure based on Euclidean distances may be more appropriate for relatively smaller (N < 500) and denser networks.     

A note on LeCam’s bound for the distance between the Poisson binomial and the Poisson distribution

n possibly different success probabilities p ₁, p ₂, ..., p _n is frequently approximated by a Poisson distribution with parameter λ = p ₁ + p ₂ + ... + p _n . LeCam's bound p ² ₁ + p ² ₂ + ... + p _n ² for the total variation distance between both distributions is particularly useful provided the success probabilities are small. The paper presents an improved version of LeCam's bound if a generalized d-dimensional Poisson binomial distribution is to be approximated by a compound Poisson distribution. Received: May 10, 2000; revised version: January 15, 2001     

翻译中心智距离存在的客观性

翻译难是一个众所周知的事实。难的原因有多种,涉及许多内在和外在诸因素,其中有一个不容忽视的成因是译者与原作者之间客观地存在着“心智距离”,即译者在语际传译过程中,受自身诸种内在因素的制约,不可能真正地深入到原作者的内心中去,与原作者同思维、共呼吸,与原作者的意旨彻底复合。当代西方流行的接受美学理论为这一现象作了很好的佐证。     

Institutional Ethnography and Experience as Data

Experience, as concept, is contested among feminists as to its epistemological status, thus its usefulness in knowledge claims. Institutional ethnography (Smith 1987) is a feminist methodology that nonetheless relies fundamentally on people's experience. Not as Truth, nor the object of inquiry, but as thepoint d'appui for sociological inquiry. This article offers a demonstration of institutional enthnography using observational and interview data that show experience as methodologically central to a trustworthy analysis. A moment in the work lives of nursing assistants in a long-term care setting is captured by a participant observer. The analysis produces two lines of argument. One is methodological; it is argued that nursing assistants' experiences are an entry into the social relations of the setting that, when mapped and disclosed, make those experiences understandable in terms of the ruling arrangements permeating both the organization and their own experiences. The other argument is substantive; the inquiry uncovers how a quality improvement' strategy in a long term care hospital in Canada is reorganizing caregivers' values and practices toward a market orientation in which care appears to be compromised. Use of experience as data in this approach holds the analysis accountable to everyday/everynight actualities in a lived world.     

高校远程教学模式探析

信息技术的迅速发展,促进现代远程教育的教学手段和教学模式不断改革.由于我国许多地区的学校互联网接入条件比较差,造成使用费用较高,从而影响了互联网信息资源的有效传播,以低成本运行网络为前提讨论远程教学模式.     

基于VARK学习风格的远程社会情感学习课程研究

基于VARK学习风格模型,以对应分析方法对IY、第二步、CKCC和积极行动四门远程社会情感学习课程的研究发现：课程学习风格偏好具有差异,其教学活动体现出不同的风格搭配且混合式学习是实现不同学习风格的主要方式。其中,IY偏好视觉和动觉的学习风格,教学活动主要包括观看视频,然后根据指示进行有道具的情境模拟活动,主要以视频课作为远程教学方式;第二步偏好读写的学习风格,教学活动主要包括阅读图片文字材料,然后完成书写类的作业,主要以数字课程作为实现方式;CKCC同样偏好读写的学习风格,教学活动主要包括教材阅读,同时伴随讨论和讲述,主要以直播课为远程教学方式;积极行动偏好听觉的学习风格,更加注重同伴间的讨论和互动,同样以在线直播课程为远程教学方式。这四门课程为其它远程社会情感学习课程开发提供了借鉴,包括课程特色和教学目标与学习风格需匹配,以及混合式学习促进不同学习风格活动效果。     

变译论与女性主义翻译思想之间的对话

福柯的权力话语理论为女性主义翻译思想提供了理论基础。女性主义翻译观强调译者的主体性,解构了原作者和原文的父权话语权力,颠覆了忠实在翻译中的权威地位。女性主义翻译的颠覆性和变译中的变通性构成对话关系,两者都是对忠实的叛逆,使译文具有混杂性和互文性的特性,通过译者在翻译中掌握的权力话语,实现译文话语权力的重构。     

Feature selection based on distance correlation: a filter algorithm

Feature selection (FS) is one of the most powerful techniques to cope with the curse of dimensionality. In the study, a new filter approach to feature selection based on distance correlation is presented (DCFS, for short), which keeps the model-free advantage without any pre-specified parameters. Our method consists of two steps: hard step (forward selection) and soft step (backward selection). In the hard step, two types of associations, between univariate feature and the classes and between group feature and the classes, are involved to pick out the most relevant features with respect to the target classes. Due to the strict screening condition in the first step, some of the useful features are likely removed. Therefore, in the soft step, a feature-relationship gain (like feature score) based on the distance correlation is introduced, which is concerned with five kinds of associations. We sort the feature gain values and implement the backward selection procedure until the errors stop declining. The simulation results show that our method becomes more competitive on several datasets compared with some of the representative feature selection methods based on several classification models.     

社会语言学视野中的网络语言

网络语言是随着网络的兴起而出现的一种网络交际语言,因其鲜明的独特性而引起了众多人的关注。本文在社会语言学的理论框架下,从语言变体、言语社区及语言变异的社会原因等方面,对网络语言进行了初步的探讨和研究。文章指出,在由互联网构建的虚拟言语社区内,网络语言是一种语言变体,然后分析了网络语言变异的社会原因及对网络语言应采取的态度。