序列交通图像去雾     

李楠  路小波 《东南大学学报》2011,(3):290-294

为了消除交通图像中的雾,根据交通图像的特点建立了一种距离场并提出了一种新颖的基于序列交通图像的参数估计方法.首先,基于大气散射模型推导出雾模糊模型,将距离场的方向平行于道路中线,距离场沿观察者到地平线的方向递增,并进行归一化处理改善距离场的分布特性;然后,对参数进行初始化,并以参考区域的平均灰度变化作为判定条件,对参数...  相似文献   

A conceptual framework for achieving good governance at open and distance learning institutions     

Pankaj Khanna 《Open Learning》2017,32(1):21-35

This paper describes a good governance architecture framework that would bring significant improvements in the overall working of open and distance learning institutions in a well-structured and systematic way. The good governance framework is articulated with seven basic principles which are performance, transparency, accountability, participation, leadership, consensus orientation and fairness. These principles are structured with the good governance practices which relate to performing well for the assigned goals and objectives, promoting values for the organisation, making well-informed and transparent decisions, focusing on the organisation’s purpose and outcomes, capacity building and managing risks effectively. These principles and suggested practices in the framework would become tools for developing an improvement strategy so as to help in the smooth operation and efficient management of the institution concerned. The developed system would bring about significant improvement in the teaching–learning activity as well as in the quality of distance education. It would also enhance the efficiency, effectiveness and overall performance of the institutional management which is crucial to the continuous development of the institution concerned. Thus, the proposed good governance framework when implemented in an open and distance education institution would improve the quality of distance education and also increase its accessibility in a well-organised and structured way.  相似文献   

Learner-content interaction in distance education: The weakest link in interaction research     

Junhong Xiao 《Distance Education》2017,38(1):123-135

Interaction is a recurrent theme in the literature on distance education. Much of the research along these lines is dedicated to reciprocal interpersonal interaction, that is, learner–learner and learner–instructor interaction. But there is far less research interest in learner–content interaction despite its fundamental and critical role in ensuring the effectiveness of the distance learning experience and education more generally. This article reflects on the interrelationship and interplay between learner–content, learner–instructor and learner–learner interactions by drawing on the three-types-of-interaction framework, equivalency theorem and other interaction research literature. It concludes by calling for more effort to be made to understand how distance learners study course materials or content, arguing that distance learning course materials may not be able to cater for distance learners and achieve their intended learning outcomes unless their design and production are informed by empirical research on learner–content interaction.  相似文献   

Digitally distanced learning: a study of international distance learners’ (non)use of technology   总被引：1，自引：1，他引：0  

Neil Selwyn 《Distance Education》2011,32(1):85-99

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美语中恭维语与人际距离的印证性研究     

王维荣  韩立君 《辽宁师范大学学报(社会科学版)》2011,34(6):110-113

数据分析显示：不同人际距离组之间在恭维语交换的频率上存在着差异,以中等人际距离者之间的交换为最多。不同人际距离组在恭维话题上存在着差异,中距组侧重能力、表现,近距组和远距组侧重仪表和所属物。恭维语的使用确有其固定的句法模式,以中距组因循句法公式的情况为最少,其使用的词汇也最具独特性。此外,不同人际距离组在恭维语回应的句法模式上也存在着明显的差异。  相似文献   

现代远程教育课程考核模式优化探究     

胡晶  李素贞 《保定师专学报》2011,(6):91-94

现代远程教育课程考核具有复杂性和特殊性,应通过考核模式和其运行机制的重心转移,教学过程、考核模式与内容融为一体等优化手段对其进行改革,要注重学习的过程性考核,并根据课程性质的不同,采取形成性考核和终结性考核相结合的模式。  相似文献   

远程学习者入学教育与学习动机及自主学习的关系——以甘肃电大临夏、甘南分校调查结果为例     

熊进 《河北广播电视大学学报》2011,16(3):17-20

通过“学习支持服务问卷”（LSSQ）对甘肃少数民族地区的376名远程教育学生的调查结果发现：作为学习支持服务系统的一项重要工作,入学教育能够增强学生获取知识的学习动机,能够增强学生自主学习的管理能力,能够增强学生利用在线资源的目的性和能动性。  相似文献   

远程开放教育课程教学媒体一体化设计的探讨     

刘宏欣 《河北广播电视大学学报》2011,16(2):16-18

课程教学媒体资源建设在远程开放教育教学模式中占有重要地位。课程教学媒体一体化设计是对课程教学媒体资源建设的总体设计,使课程设置的各种媒体资源达到优化配置。只有在充分分析远程教学和在职成人自主学习特点的基础上,适应课程特点,发挥各种教学媒体的优势,才能使课程教学媒体资源适应远程教育学生自主学习的实际需要。  相似文献   

消除发展鸿沟：远程开放大学的使命——第25届世界远程教育校长会议综述     

张炳华 《江苏广播电视大学学报》2011,22(1):14-19

第25届国际远程教育校长会议的主题是消除发展鸿沟。消除发展鸿沟是远程开放大学的使命。远程开放大学教育对于数字时代强化学生入学、参与和成功完成学业;基于推进发展理念院校承担促进知识转移的社会责任,在一种文化中有益教育资源如何为欠发达地区共享;全民教育时代高等教育的政策、计划、实施;高等教育在全球化中的合作、参与和交流等四个核心问题可以发挥重要作用。  相似文献   

远程开放教育平台建设及学习模式探究——以上海终身学习网为例     

李雪  曹俊  肖君 《江苏广播电视大学学报》2011,(5):10-14

远程开放教育平台是终身教育的重要实践应用,而信息技术的迅速发展也为数字化终身学习体系的构建提供了可能。上海终身学习网是应用Web2．0技术建设的网站。主要功能模块包括学习资源、学习进度和目标激励三个部分。典型学习模式包括基于学习主题的自主学习模式、基于学习圈的协作学习模式、基于评比展示的个性化学习模式。  相似文献