Big and open linked data analytics ecosystem: Theoretical background and essential elements   总被引：1，自引：0，他引：1  

Martin Lnenicka  Jitka Komarkova 《Government Information Quarterly》2019,36(1):129-144

Big and open linked data are often mentioned together because storing, processing, and publishing large amounts of these data play an increasingly important role in today's society. However, although this topic is described from the political, economic, and social points of view, a technical dimension, which is represented by big data analytics, is insufficient. The aim of this review article was to provide a theoretical background of big and open linked data analytics ecosystem and its essential elements. First, the key terms were introduced including related dimensions. Then, the key lifecycle phases were defined and involved stakeholders were identified. Finally, a conceptual framework was proposed. In contrast to previous research, the new ecosystem is formed by interactions of stakeholders in the following dimensions and their sub-dimensions: transparency, engagement, legal, technical, social, and economic. These relationships are characterized by the most important requisites and public policy choices affecting the data analytics ecosystem together with the key phases and activities of the data analytics lifecycle. The findings should contribute to relevant initiatives, strategies, and policies and their effective implementation.  相似文献   

谈造型基础训练中的悟理观     

裴哲峰 《安阳工学院学报》2011,10(3):54-56

长期以来,国内高校的造型基础教学多局限于对学生造型基本功的培养,把造型基础课程仅仅看成了提高学生造型能力的一种手段,忽视了民族绘画精神的体现。在中国传统绘画的学习和创作中,对于"悟性"的探讨,有着悠久的历史,如果在造型基础学习中能够加以关注,显然有利于中国美术的纵深发展。  相似文献   

关于算术编码教学的几点注记     

王大星  朱鹤鸣 《滁州学院学报》2011,13(5):97-99,115

随着科学技术的发展,信息、通信类本科生学习信息论是十分必要的。算术编码是基于统计的、无损数据压缩效率最高的编码方法。针对算术编码教学中存在的问题,本文进一步探讨了算术编码的编码、译码过程,提出了编码过程中需要注意的问题,并将算术编码与哈夫曼编码做了比较。最后,用Matlab实现了算术编码的具体实例。  相似文献   

基于大数据的个性化自适应在线学习分析模型及实现     

姜强  赵蔚  王朋娇  王丽萍 《中国电化教育》2015,(1)

通过大数据学习分析模型,能够深入探究学习者的学习过程与情境,发现学习规律,根据每一个学生的需求和能力为其提供个性化自适应学习。本研究综述了大数据的内涵及应用,从微观视角提出了大数据之“大”,不在于其表象的“大容量”,而在于分析数据的全面性和潜在的“大价值”。基于大数据分析,从数据与环境(What)、关益者(Who)、方法(How)和目标(Why)等4个维度构建个性化自适应在线学习分析模型。以《C语言程序设计》课程学习为例,从基于大数据个性化自适应的学习过程结构、学习过程可视化及学习效果实证等方面进行分析,研究结果表明对学生学习行为与知识掌握的数据分析,能够推荐合理的学习路径与恰当难度的学习资源,可对学生的学习效果做及时准确的反馈,提供个性化服务干预,有利于促进教与学。  相似文献   

大数据时代班级管理平台的开发与应用研究     

曾令华  胥经华 《中国电化教育》2015,(7)

利用网络技术的先进性来实现班级管理的自动化,是信息时代大数据背景下的学校班级管理的实践创新和理论重建。该文设计开发的“中小学班级管理平台”,不仅能提高班级管理的效率和精确度,并且能给学生提供开拓视野、参与班级活动的平台,既使学校的管理科学化、正规化,又能调动学生参与班级管理的积极性、主动性;该文初步架构出学校班级管理现代化与校长课程领导力的关联模型,为学校课程实施水平的实质提升提供了一种新的促进机制。  相似文献   

教师数据决策实践:内涵、困境与优化策略     

柳叶青 《中学教育》2015,(1):11-20

基于数据的教育决策研究与实践浪潮是20世纪80年代基础教育标准化运动的重要产物之一。聚焦于教师数据决策,则应从教育Data观、教师数据实践范畴的角度来揭示其背后所隐含的思维模式与实践模式,从制度、文化、技术和心理四个层面对教师遭遇的困境给予关注。在此基础上,有效的专业学习策略应采取由内而外的思考路径,以确立教师数据决策的专业自主性。  相似文献   

Community interaction and child maltreatment     

《Child abuse & neglect》2015

The way in which parents interact with their environment may have implications for their likelihood of abuse and neglect. This study examines the parent–environment relationship through community involvement and perception, using social disorganization theory. We hypothesize mothers who participate in their communities and have positive perceptions of them may be less likely to maltreat their children because of the potential protective capacity of neighborhood supports. Using information from the 5 year Fragile Families and Child Wellbeing Study (n = 2991), the mother's self-reported acts of psychological and physical maltreatment and neglect are measured. A mother's community involvement index is the number of community activities a mother was involved in, and community perception is measured by two five-item Likert scales assessing perception of community collective efficacy. We analyze the relationship between community variables and each of mother's maltreatment behaviors as well as the interaction between community factors using a series of nested logistic regressions. Higher levels of community involvement are associated with lower levels of psychological aggression. More positive perception of community social control is associated with lower levels of physical assault. A moderation effect of community perception suggests that a mother's perception of her community changes the relationship between community involvement and psychological child abuse. The results provide important policy and empirical implications to build positive and supportive communities as a protective factor in child maltreatment. Getting parents involved in their communities can improve the environment in which children and families develop, and decrease the likelihood that maltreatment will occur.  相似文献   

Inclusion Practices in Elementary Physical Education: A Social-cognitive Perspective     

Jihoun An  Karen S. Meaney 《International Journal of Disability, Development & Education》2015,62(2):143-157

This study explored inclusion practices in general physical education (GPE) from the experiences and perspectives of elementary physical education teachers. The stories of four teachers (two females, two males) between 27 and 57 years of age were gathered using the phenomenological methods of semi-structured interviews, photographs, school documents, and field notes. Bandura’s social-cognitive theory provided a conceptual framework to interpret the findings of this inquiry. Three themes emerged from the thematic analysis: engaging in learning; adapting strategies to meet students’ needs; and moving beyond the educational goals. The findings suggest that inclusion practices (teacher’s behaviours) in GPE were constructed by the dynamic interactions between teachers’ knowledge of disability and motivation to learn about their students (personal factors) and children’s needs and learning goals (environment).  相似文献   

大数据时代数据库课程体系与教学方法研究--以滁州职业技术学院为例     

李云松 《滁州职业技术学院学报》2021,(1):82-84

从高职数据库类课程开设的现状入手,分析课程在教学中存在的问题和时代对于新技能的追求。根据毕业生信息反馈中分析企业对课程的要求,通过整合教学内容,在不同专业中调整应用教学不同的课程内容体系,采用不同教学方法,为高职开设数据库类课程的专业设置课程体系提供思路。  相似文献   

“数据挖掘”课程教学探讨     

曹楠源  许卫霞 《教育教学论坛》2022,(4)

“数据挖掘”课程是大数据相关专业的重要专业课程,通过数据挖掘可以发现数据中隐藏的价值。该课程采取理论与实践相结合的教学模式,在理论教学方面主要讲解数据挖掘的经典算法;在实践教学方面使用Python编程实现理论部分的经典算法,让学生通过算法的编程进一步掌握算法。按照课程思政改革的要求,在课程设计中设置一些以社会实际问题为主题的案例,在提高学生学习兴趣的同时引导学生树立正确的价值观。对于复杂的、抽象的数据挖掘理论算法开设线上课程,有利于学生回顾重要的、难理解的知识点,帮助学生掌握理论知识。  相似文献