大数据视角分析学习变革——美国《通过教育数据挖掘和学习分析促进教与学》报告解读及启示     

徐鹏  王以宁  刘艳华  张海 《电大教学》2013,(6):11-17

“数据驱动学校,分析变革教育”的大数据时代已经来临,利用教育数据挖掘技术和学习分析技术,构建教育领域相关模型．探索教育变量之间的相关关系．为教育教学决策提供有效支持将成为未来教育的发展趋势。“大数据”的出现．将掀起人类教与学的又一次变革。2012年,美国国家教育部发布了《通过教育数据挖掘和学习分析促进教与学》报告．对美国国内大数据教育应用领域和案例。以及应用实施所面临的挑战进行了详细的介绍。借鉴此报告．我们认为未来我国教育领域的大数据研究和应用。应加强国家和地方对相关的研究和应用在技术层面、管理体制层面以及法律制度层面的支持,按需合理规划具体研究和应用,整合现有资源,发挥后进优势,借助“大数据”实现真正意义上的个性化学习．进而实现教育公平。  相似文献   

Likelihood-Based Confidence Intervals in Exploratory Factor Analysis     

Frans J. Oort 《Structural equation modeling》2013,20(3):383-396

In exploratory or unrestricted factor analysis, all factor loadings are free to be estimated. In oblique solutions, the correlations between common factors are free to be estimated as well. The purpose of this article is to show how likelihood-based confidence intervals can be obtained for rotated factor loadings and factor correlations, by applying maximum likelihood factor analysis subject to scaling and rotation constraints. As an illustrative example, an oblique 5-factor model will be fitted to the variance-covariance matrix of the 30 personality facets measured by the Revised NEO Personality Inventory, and confidence intervals will be estimated for all factor loadings and factor correlations, as well as for the associated reliability and validity coefficients.  相似文献   

Everything is illuminated: What big data can tell us about teacher commentary     

Zachary Dixon  Joe Moxley 《Assessing Writing》2013,18(4):241-256

What happens to writing instructors’ feedback when they use a common rubric and an online tool to respond to student papers in a first-year composition course at a large state university in the United States? To investigate this question, we analyze the 118,611 comments instructors made when responding to 17,433 student essays. Using concordance software to quantify teachers’ use of rubric terms, we found instructors were primarily concerned with global, substantive, higher-order concerns—such as responding to students’ rhetorical situations, use of reason, and organization—rather than lower-order concerns about grammar or formatting. Given past research has determined teachers overemphasize lower-order concerns such as grammar, mechanics, and punctuation (Connors and Lunsford, 1988, Lunsford and Lunsford, 2008, Moxley and Joseph, 1989, Moxley and Joseph, 1992, Schwartz, 1984, Sommers, 1982, Stern and Solomon, 2006), these results may suggest the possibility of a generational shift when it comes to response to student writing. Aggregating teacher commentary, student work, and peer review responses via digital tools and employing concordance software to identify big-data patterns illuminates a new assessment practice for Writing Program Administrators—the practice of Deep Assessment.  相似文献   

目的论视角下《生活大爆炸》中幽默语的翻译     

方欣 《海外英语》2013,(7)

幽默是一种语言和文化内涵的载体,随着跨文化交流的日益频繁,越来越多的人对幽默有所探索。目前对幽默的研究大都是从文学、艺术、心理学等角度,但是从翻译的侧面对幽默的研究并不多,有些学者甚至认为幽默是不可翻译的。幽默语的翻译可以使来自不同文化背景人们相互之间更好地分享幽默。该文以功能翻译目的论为理论依据,选取时下流行的美国情景喜剧《生活大爆炸》中的幽默语言为案例,分析译者在翻译幽默语时所采取的具体策略及其得失。  相似文献   

延川话与唐五代西北方音     

徐朋彪 《咸阳师范专科学校学报》2013,(5):41-43

今陕北延川话具有与唐五代西北方音共同的一些音韵特征。如鼻音声母读[mb、nd、Ng],全浊声母读作送气清音,梗摄、宕摄阳声韵字读作阴声韵,咯、秦、灰三韵读[ai、uai],麻韵开口三等字韵母为[a、ia],支微入鱼等。这些特点在陕北的吴堡、清涧、延长以及关中渭北的韩城、合阳、大荔等地也均有所反映。因此,这些地方的读音比西安等地的方言更加接近唐五代西北方音。  相似文献   

“脸”与“面”的词义演变研究     

祝子媛 《南宁职业技术学院学报》2013,18(4):84-88

近年来,关于人体词的研究,已经成为语言学领域的热点,"脸"与"面"是人体词中比较有代表性的高频词汇。按照"隋唐以前""、隋唐五代"和"宋元明清"三个时期进行梳理,发现"脸"与"面"这组人体词语的词义随着历史的演进发生了系列演变。找寻"脸"与"面"两者的替代规律以及发展脉络,探究两者的演变过程,将有助于汉语史人体词汇发展的研究。  相似文献   

大数据背景下高校图书馆的资源建设     

王晔煊  杨艳君 《鞍山师范学院学报》2013,(6):101-104

大数据时代,图书馆将在资源建设、读者服务、组织管理等方面面临着严峻的挑战。数字图书馆是图书馆信息化建设的重要组成部分。文章论述了大数据的内涵,分析了高校数字资源建设中存在的问题,进而对图书馆数字资源建设进行探讨。  相似文献   

CEPA与粤港澳高等教育的制度化合作   总被引：6，自引：0，他引：6  

陈昌贵  陈文汉 《高等教育研究》2004,25(1):39-42

旨在加强香港与内地经贸合作的CEPA计划,将粤港澳地区的经济合作与交流提升到制度化建设层面。CEPA签订后,粤港澳三地的经济合作将会越来越密切,它必然要求建立粤港澳高等教育制度化合作的机制。这一新机制一旦建立,将会极大地促进粤港澳三地高等教育的发展水平。  相似文献   

Exploring adverse drug reactions of diabetes medicine using social media analytics and interactive visualizations     

《International Journal of Information Management》2019

The aim of this study is to propose an automatic and real-time social media analytics framework with interactive data visualizations to support effective exploration of knowledge about adverse drug reaction (ADR) surveillance. This proposed framework has been prototypically implemented on the basis of social media data. A longitudinal diabetes patient online community data (AskaPatient.com) as well as FDA Adverse Event Reporting Systems (FAERS) data as a benchmark were used to evaluate our proposed approach’s performance. Based on the results, our approach significantly increases the precision and accuracy for ADR extraction. The number of ADR cases, the time when the ADRs occurred, and the rating of Glucophage have been visualized that resulted by mining a collection of 870 ADRs posted in Askapatents.com over a certain time period (from 2001 to 2015). The results have important implications for pharmaceutical companies and hospitals wishing to monitor ADRs of medicines.  相似文献   

大数据背景下科学元数据的重要问题研究     

李善青  郑彦宁  赵辉  邢晓昭 《科技管理研究》2019,39(18)

科学元数据是加强科学数据管理和共享服务的重要手段之一。数据密集型的科研范式和大数据技术的广泛应用突显了科学数据的重要作用,也对科学元数据的内容、形式和功能等方面提出了新的要求和挑战。本文在对科学元数据的发展现状进行分析的基础上,梳理了科学元数据的相关定义和功能要求,进而从可追溯性、可关联性和互操作性三个方面阐述了大数据背景下的新要求,最后讨论了相关技术及其发展趋势。  相似文献