双曲几何的度量     

袁志刚 《嘉应学院学报》1997,15(3):26-30

本文通过对双曲平面模型中三角形的边角关系的研究,得到双曲平面上的三角函数及双曲度量等双曲几何内容.  相似文献   

重复代码自动检测工具的研究与设计     

李建忠  刘建宾 《韩山师范学院学报》2006,27(6):24-29

重复代码是程序中最常见的代码“坏味道”.在改进的Kontogiannis度量方法及基于过程蓝图的参数化匹配检测方法基础上,提出以过程蓝图为基础,设计出一个重复代码自动探测工具,并给出实现系统结构.同时论述了工具种各模块的设计与实现方法,着重讨论了重复代码检测器及存储结构的设计。  相似文献   

An initial analysis and reflection of the metrics used in the Teaching Excellence Framework in the UK     

J. W. Gillard 《Perspectives: Policy and Practice in Higher Education》2018,22(2):49-57

In this paper, we look at the results from the recent Teaching Excellence Framework (2017), which were made publicly available in June 2017. We offer some initial analysis and commentary, look at the primary reasons for providers being awarded Bronze, Silver and Gold, and look at some providers close to the borderline for their award. We demonstrate that the provider submissions, a narrative document prepared to accompany the submission would have had a significant effect upon the award bestowed.  相似文献   

Trends of European picture book production since 1945     

Bettina Hurlimann 《International Information and Library Review》2013,45(1):51-60

Abstract

The dramatic increase in the use of the global network is examined through statistics and examples of the involvement of many countries. Despite the explosive growth of Internet use and contrary to the increasingly frequent characterization of the Internet as global, gaps are identified in the international coverage of the network. Evidence of the participation of librarians in the global network is sought through an analysis of subscriber lists for selected library-related listservs. Findings show that representation of librarians from a few countries is very high, while representation of librarians from most countries is low or non-existent. The value of the Internet and the potential role librarians can plan in this evolving environment are discussed.  相似文献   

The Two Faces of Janus: Web Analytics Companies and the Shifting Culture of News     

Valerie Belair-Gagnon  Avery E. Holton 《Journalism Practice》2019,13(8):993-997

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A new global policy regime founded on invalid statistics? Hanushek,Woessmann, PISA,and economic growth     

Hikaru Komatsu 《比较教育学》2017,53(2):166-191

Several recent, highly influential comparative studies have made strong statistical claims that improvements on global learning assessments such as PISA will lead to higher GDP growth rates. These claims have provided the primary source of legitimation for policy reforms championed by leading international organisations, most notably the World Bank and OECD. To date there have been several critiques but these have been too limited to challenge the validity of the claims. The consequence is continued utilisation and citation of these strong claims, resulting in a growing aura of scientific truth and concrete policy reforms. In this piece we report findings from two original studies that invalidate these statistical claims. Our intent is to contribute to a more rigorous global discussion on education policy, as well as call attention to the fact that the new global policy regime is founded on flawed statistics.  相似文献   

Self-tracking and metric codification in digital infrastructures for scholarly communication     

《The Information Society》2012,28(1):43-52

Abstract

We argue that the stakes of scholarly communication are changing as a result of technology-enabled ability to self-track and the enhanced provision and proliferation of instant metrics. These developments accentuate the role of the individual, and conversely underplay the collective effort, in the advancement of knowledge by focusing attention on metrics centered on the individual, professional performance, and communication directed at oneself. We suggest – in line with previous research – that metrics play an increasingly important role in configuring the scholarly communication system. But we also stress, unlike previous research, that metrics are embedded in larger communication contexts, or systems, that are already codified and ordered. Hence the discursive value ascribed to metrics must take into account these contexts. This has at least two benefits. One, we do not reduce scholarly communication to an issue of metrics and rewards, like scientometric studies and contemporary notions of the so-called quantified academic self, and two, a communication framework allows us to see new sorts of conversations going on and new modes of togetherness enabled alongside the digital nurturing of metric regimes.  相似文献   

科技评价中不同权重赋值方法的比较研究：以中国医院科技量值为例     

单连慧  钟华  胥美美  安新颖 《科技管理研究》2022,42(2):70-74

探讨医院科技评价中评价指标权重的确定方法,比较主客观赋权法对评价结果的影响。基于以层次分析法确定指标权重的中国医院科技量值指标体系,选取《2018年度中国医院综合科技量值报告》中综合科技量值前100位医院的指标数据,分别采用熵值法、CRITIC法、独立性法、信息量法计算指标权重,通过加权计算得到这4种方法的评价结果,与采用层次分析法确定权重的中国医院科技量值结果进行比较。结果表明:(1)100家医院研究指标的信度系数值为0.883,数据信度质量高;(2)4种客观赋权法权重之间的相关系数值呈现出显著性;(3)采用层次分析法与4种客观赋权法计算得到的科技量值之间的相关系数值分别是0.920、0.984、0.992、0.976,全部呈现出正相关关系。研究验证了中国医院科技量值的主、客观评价结果,并提出客观赋权评价方法的选取要注意根据评价目的、管理需求及评价数据实际进行系统比较后选取。  相似文献   

Teachers' beliefs about standardised testing and test-based accountability: Comparing the perceptions and experiences of teachers in Chile and Norway     

Marjolein K. Camphuijsen  Lluís Parcerisa 《European Journal of Education》2023,58(1):67-82

The global popularity of test-based accountability appears to signal political trust in standardised assessments as valid and relevant measures of education quality. Nonetheless, research shows that educators' perceptions of standardised testing and test-based accountability can vary significantly, as do their responses to accountability demands. Considering the key influence of teachers' beliefs on the way in which they respond to education reforms, in this article we examine teachers' beliefs and opinions about standardised tests and test-based accountability. We analyse a comparative study on interpretations and experiences of standardised testing and test-based accountability demands of compulsory education teachers in Chile and Norway. These cases were selected following a most-different-systems design approach. The data was derived from an electronic survey (n = 2,531) and in-depth interviews (n = 41). The analysis shows how in both contexts, teachers are relatively critical about the validity, usefulness and fairness of standardised tests. This indicates lacking teacher trust in standardised testing and test-based accountability. Still, despite similar trends, some key differences in the beliefs of Chilean and Norwegian teachers are found, which highlight the influence of the sociocultural context in shaping teachers' beliefs. By illuminating how teachers in different contexts make sense of test-based accountability, our analysis contributes to the understanding of why the often-reported mismatch between policy expectations and policy outcomes might occur.  相似文献   

Altmetrics对图书馆服务的影响研究     

夏秋菊  黄英实  刘喆姝 《现代情报》2014,34(9):129-132

文章介绍了Altmetrics的起源、特征、典型应用平台,重点阐述了Altmetrics为图书馆在馆藏建设、读者个性化信息、管理决策方面带来的机遇,提出了图书馆在Altmetrics时代通过技术环境、资源建设、情报服务、用户体验4个方面提升服务的策略,最后对Altmetrics的未来应用做出展望。  相似文献