教育知识图谱构建中的标准词汇参考模型研究     

袁满  曹阳  陈萍 《电化教育研究》2020,(3):76-84

教育是典型的知识密集型领域,因此,进行领域知识的共享研究对教育领域的发展非常重要。多年信息化的历史经验告诫我们:共享的前提是必须对领域资源实施标准化。尽管我国教育领域研发了系列教育元数据标准,但是从智慧教育的需求来看,这些标准普遍表现为缺乏语义、比较零散、体系不够完善等。随着近些年知识图谱的提出,为教育资源的知识整合发展提供了重要的技术手段。然而,目前知识图谱构建的主要焦点在构建技术方面,忽视了构建中的标准化问题。长此以往,领域将会构建出很多“知识孤岛”。为解决这些问题,本文在对国内外教育领域内标准进行研究的基础上,以系统理论为依据提出并构建了一个集预定义词汇的W3C语义Web标准、顶层词汇标准和领域词汇标准于一体的三层架构模型——教育资源知识图谱标准词汇参考模型。基于该模型建构知识图谱,不仅为教育领域数据的标准化提供标准词汇参考,而且也为规范构建教育领域知识图谱提供了参考。  相似文献   

Investigating video as a means to promote vocabulary for at-risk children     

Rebecca Silverman 《Contemporary educational psychology》2013

Two studies on the role of video on vocabulary learning were conducted in kindergarten classrooms with substantial numbers of children from low-income and Dual Language Learning (DLL) backgrounds. In the first study (n = 78), the effect of video viewing was compared with the effect of book reading on vocabulary learning. In the second study (n = 89), the effect of repeated viewing of video was compared with the effect of single viewing of video on vocabulary learning. Pre-test and post-test receptive and expressive vocabulary measures, which were aligned with the content in the studies, were administered. Analysis of Variance was used to test the effect of condition (i.e., video viewing versus book reading and single versus repeated reading) on children’s word knowledge. Results showed no difference in vocabulary learning between the video viewing and book reading conditions. Findings showed that there was no difference in vocabulary learning between children in the single and repeated viewing condition on the receptive measure, but children in the repeated viewing condition showed higher gains in vocabulary on the expressive measure. No differences were found in either study between children with higher and lower vocabulary knowledge.  相似文献   

Supporting mathematics vocabulary instruction through mathematics curricula     

Erica M. Barnes  S. Joy Stephens 《Curriculum Journal》2013,24(3):322-341

Abstract

This study examines four of the most commonly-used core mathematics curricula in the USA for evidence of support for research-based instructional strategies for mathematics vocabulary in first and second grade. Content analyses of the teachers’ editions of two units for each grade level were analyzed per curriculum (n?=?16). Statistically significant differences among curricula were found for number of target words (range 6–51 per unit), level of difficulty of terms (basic to technical), and number of support strategies per word. Multiple means of representation varied in terms of verbal and non-verbal strategies for target terms. These differences indicate children are experiencing substantially different mathematics vocabulary learning opportunities, which may impact later mathematics achievement. Implications for practice, curriculum development, and future research are addressed.  相似文献   

Growth in toddlers’ Spanish,English, and conceptual vocabulary knowledge     

Jeannette Mancilla-Martinez  Shaher Banu Vagh 《Early childhood research quarterly》2013

This longitudinal study modeled growth rates, from ages 24 to 36 months, in English, Spanish, and conceptual (i.e., combination of English and Spanish vocabulary items in terms of known concepts) productive vocabulary among 36 children from low-income homes. Individual growth modeling was employed using scores from the MacArthur–Bates Communicative Development Inventory (CDI; Fenson et al., 2007) and the MacArthur Inventarios del Desarrollo de Habilidades Comunicativas (IDHC; Jackson-Maldonado et al., 2003) which were completed by parents every three months. Results demonstrate that students started out below national norms for monolinguals in English and Spanish vocabulary and their rates of growth did not allow them to reach age-appropriate levels even when applied beyond the age range for which the parent reports were designed. However, shifts toward more English use were documented. Additionally, when conceptual vocabulary growth was considered, the magnitude of the vocabulary gap relative to national norms was not as pronounced, underscoring the need attend to both languages. Theoretical, policy, and practical implications concerning dual language learning prior to formal school entry are discussed.  相似文献   

An Approach to Managing Vocabulary for Databases on the Web     

《Cataloging & classification quarterly》2013,51(3):55-66

ABSTRACT

This paper proposes an approach for managing vocabulary for reference databases on the Web. The approach is directed at domain specific databases in which much of the referenced material remains in non-digital form. A combination of interactive and manual processes are outlined along with a proposed implementation approach. For this limited class of databases, it is suggested that the approach can significantly improve vocabulary management with relatively low costs in manual effort.  相似文献   

从语言与思维的关系看中国传统思维方式对汉语词汇的影响     

崔馝席 《山东教育学院学报》2008,23(2):72-73

语言是思维的工具,又是思维的产物,人类思维的某些方面总不可避免地在语言中留下印记。汉语词汇中,事物的形体因素和情景图像表现突出,这是重直觉、重类比、重了悟的中国传统思维方式渗透的结果。  相似文献   

Reading Aloud with Infants: The Controversy, the Myth, and a Case Study     

Jeanne W. Holland 《Early Childhood Education Journal》2008,35(4):383-385

Reading aloud to infants continues to be the focus of controversy between educators, researchers, and health care professionals. This article will provide insight into what research says about reading aloud to infants as well as the results of a case study of a six-month-old infant who has been read aloud to in utero to the present time. The results of this case study confirm that parents and caregivers reading aloud to infants is necessary in developing literacy skills that are paramount to book awareness, print awareness, vocabulary development, fluency, and comprehension, all of which are stepping stones to learning to read and write.  相似文献   

Efficacy of Rich Vocabulary Instruction in Fourth- and Fifth-Grade Classrooms     

《Journal of research on educational effectiveness》2013,6(3):325-365

A multi-cohort cluster randomized trial was conducted to estimate effects of rich vocabulary classroom instruction on vocabulary and reading comprehension. A total of 1,232 fourth- and fifth-grade students from 61 classrooms in 24 schools completed the study. Students received instruction in 140 Tier Two vocabulary words featured in two grade-level novels. Teachers were randomly assigned to either rich vocabulary (treatment) or to business as usual (control). Teachers in the treatment condition allotted 30 minutes per day to the intervention for 14 weeks. Hierarchical linear modeling revealed positive, significant treatment effects on distal and proximal measures of vocabulary and comprehension. However, average distal treatment effects were small (approximate d =.15) compared with proximal effects (approximate d = 1.24). Observations of teachers’ language arts instruction indicated that treatment teachers spent significantly more time on vocabulary and less time on comprehension instruction than did teachers in the control condition. Results support the intensity and depth of the instruction for learning the taught corpus of words, and modest transfer to global vocabulary and comprehension.  相似文献   

KOS互操作中的术语映射研究综述*   总被引：2，自引：0，他引：2  

薛春香乔晓东  朱礼军 《现代图书情报技术》2010,26(2):31-37

总结基于词形、基于结构和基于语料的术语映射方法,阐述术语映射关系的主要类型,对术语映射中的映射方向性、映射不一致性、映射关系传递性、人工映射与自动映射相结合等相关问题进行简单讨论。  相似文献   

普通本科院校英语专业新生词汇学习策略调查     

张青 《河西学院学报》2010,26(6)

本文通过问卷调查和词汇测试成绩,运用定量分析的方法,研究了普通本科院校英语专业新生词汇学习策略的使用特点以及学习策略与词汇测试成绩之间的相关性。结果表明:学生不同程度地运用各种策略来学习英语词汇;大部分词汇学习策略与词汇测试成绩之间存在一定的相关性,自我评估、上下文、构词法、猜测、视觉编码、听觉编码、意义编码等为比较有效的策略;优生比差生更善于运用各种词汇学习策略。该项研究对于英语专业新生的词汇教学活动具有一定的启示作用。  相似文献