Granularity of algorithmically constructed publication-level classifications of research publications: Identification of topics     

Peter Sjögårde  Per Ahlgren 《Journal of Informetrics》2018,12(1):133-152

The purpose of this study is to find a theoretically grounded, practically applicable and useful granularity level of an algorithmically constructed publication-level classification of research publications (ACPLC). The level addressed is the level of research topics. The methodology we propose uses synthesis papers and their reference articles to construct a baseline classification. A dataset of about 31 million publications, and their mutual citations relations, is used to obtain several ACPLCs of different granularity. Each ACPLC is compared to the baseline classification and the best performing ACPLC is identified. The results of two case studies show that the topics of the cases are closely associated with different classes of the identified ACPLC, and that these classes tend to treat only one topic. Further, the class size variation is moderate, and only a small proportion of the publications belong to very small classes. For these reasons, we conclude that the proposed methodology is suitable to determine the topic granularity level of an ACPLC and that the ACPLC identified by this methodology is useful for bibliometric analyses.  相似文献   

Validation of the elementary social behaviour assessment: teacher ratings of students’ social skills adapted to Norwegian,grades 1–6     

Anne Arnesen  Keith Smolkowski  Terje Ogden  Monica Melby-Lervåg 《Emotional and Behavioural Difficulties》2018,23(1):39-54

This study investigated the psychometric properties of the Elementary Social Behaviour Assessment (ESBA), a teacher-report measure of students’ social skills and academic engagement adapted for use in Norwegian schools. At two times, 8 weeks apart, 151 teachers rated 793 students in Grades 1–6 on the ESBA and the Social Skills Rating System Teacher’s form (SSRS-T). Exploratory factor analysis with the first assessment suggested one or possibly two factors. Confirmatory factor analysis with the second assessment confirmed the one- or two-factor models but did not offer strong evidence for one over the other. The ESBA demonstrated good to excellent reliability. Strong concurrent and predictive correlations with the SSRS-T established criterion validity. The school and teacher levels explained only a limited amount of the total variance in ESBA scores, suggesting that teachers rate students quite similarly. The Norwegian-adapted ESBA paralleled the reliability and validity evidence from US samples.  相似文献   

浅析基于ETL技术和全表扫描哈希对比的数据同步方法     

王志学  麦晓冬  符睿 《广东轻工职业技术学院学报》2011,10(2):4-7

数据同步技术随着企业对各个信息系统之间数据共享的重视而变得越来越重要,数据同步的方法有很多,本文主要介绍基于ETL技术和基于全表扫描及哈希对比两种数据同步方法。基于ETL技术的数据同步是基于中间逻辑表完成数据转换,再通过主键和时间戳的对比而完成数据同步过程。本文以Kettle工具为例进行分析;基于全表扫描及哈希对比的数据同步是基于视图完成数据转换,再通过hash算法扫描对比而完成数据同步过程。  相似文献   

Violence For Equality: Inquiries in Political Philosophy     

r. g.  frey 《Philosophical Books》1980,21(4):247-248

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What’s Working in Working Memory Training? An Educational Perspective     

Thomas S. Redick  Zach Shipstead  Elizabeth A. Wiemers  Monica Melby-Lervåg  Charles Hulme 《Educational Psychology Review》2015,27(4):617-633

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研究生教育投资的经济学分析   总被引：5，自引：0，他引：5  

裴劲松  袁伦渠  赵忠义 《中国软科学》2002,(2):43-46

本文深入探讨了对研究生收费标准的影响因素，并运用大量的相关数据计算出一个具体的收费标准。计算表明，我国硕士研究生每年的最高收费可达27000多元，目前的低学费是考研热的重要原因之一。我国博士学历人员的收入相对较低，目前不宜收费。  相似文献   

爱尔兰图书馆危机管理实践及启示     

曾晶晶  刘青 《图书馆学研究》2011,(2):12-16

文章简述了危机管理的内涵,通过网络调查法,对爱尔兰图书馆协会、爱尔兰国家图书馆及爱尔兰25所大学图书馆与危机管理有关的实践情况进行了深入研究。参考爱尔兰图书馆危机管理的经验,提出对我国图书馆危机管理实践的几点建议:积极参与国际交流与合作、积极贯彻相关法律法规、将相关预防对策贯彻到具体的规章制度中、积极制定危机预案、进一步完善图书馆规章制度,以期对我国图书馆危机管理提供借鉴。  相似文献   

Euro-Philiacs,Euro-Sceptics and Europhobics: Higher Education Policy,Values and Institutional Research     

Guy?NeaveEmail author 《Tertiary Education and Management》2005,11(2):113-129

The European higher education landscape is inhabited by three clans: the Euro-philiac, his wicked twin, the Euro-phobic and most interesting of all, the Euro-sceptic. This unholy trinity has long been with us. Though the recent Euro electoral fiasco has in all probability served to bolster the ranks of the second and third tribes1  相似文献   

Parental perspectives of the role of school factors in school refusal     

Trude Havik  Edvin Bru  Sigrun K. Ertesvåg 《Emotional and Behavioural Difficulties》2013,18(2):131-153

The aim of this study was to explore parents’ perspectives on the role of school factors in school refusal (SR). Semi-structured interviews were conducted with 17 parents who had experienced SR with their own child. They identified several school factors related to SR. Some of these findings suggest that students who are prone to SR need more predictability and more teachers’ support than they sometimes get in school. Their need for predictability seems to occur particularly during less structured activities and during transitions in school. Findings also imply that disruptive behavior among classmates and harsh management from teachers affects perceived predictability and support for SR-prone students. All parents expressed concern about bullying, and roughly a third of them reported that their child had been a victim of bullying. Insufficient adaptation of schoolwork was also mentioned relatively frequently. Parents emphasized that adaptation of schoolwork needs to be done in close cooperation with the student and parents to avoid negative differentiation from classmates or stigma. Finally, several parents commented that teachers and schools need more knowledge about SR and felt that schools needed a more coordinated approach to supporting students who are at risk of SR.  相似文献   

Self-assessment of competences and their impact on the perceived chances for a successful university-to-work transition: the example of tourism degree students in Poland     

Piróg  Danuta  Kilar  Wioletta  Rettinger  Renata 《Tertiary Education and Management》2021,27(4):367-384

Tertiary Education and Management - Competences are the most important career capital a university graduate can have. The objective of the paper is to determine which competences acquired at...  相似文献