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《Journal of Informetrics》2014,8(4):824-839
The citations to a set of academic articles are typically unevenly shared, with many articles attracting few citations and few attracting many. It is important to know more precisely how citations are distributed in order to help statistical analyses of citations, especially for sets of articles from a single discipline and a small range of years, as normally used for research evaluation. This article fits discrete versions of the power law, the lognormal distribution and the hooked power law to 20 different Scopus categories, using citations to articles published in 2004 and ignoring uncited articles. The results show that, despite its popularity, the power law is not a suitable model for collections of articles from a single subject and year, even for the purpose of estimating the slope of the tail of the citation data. Both the hooked power law and the lognormal distributions fit best for some subjects but neither is a universal optimal choice and parameter estimates for both seem to be unreliable. Hence only the hooked power law and discrete lognormal distributions should be considered for subject-and-year-based citation analysis in future and parameter estimates should always be interpreted cautiously. 相似文献
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Despite the increasing interest taken in knowledge management (KM) by a wide range of practitioners as well as the library and information science (LIS) community, knowledge management is not systematically applied in libraries. Due to the complexity of knowledge, as well as the multifaceted nature of knowledge management, there is no consensus among LIS professionals regarding its relation to information management. In this context, the current study aims at exploring how library employees perceive knowledge management, as well as which KM tools and techniques are adopted by academic libraries. The results indicate that although practitioners are aware of knowledge management and appreciative of its benefits not only for library performance but also for LIS professionals' future career options, there is a lack of clarity on fundamental KM issues. Finally, academic libraries take steps towards capturing the knowledge of their users and internal explicit knowledge; however, social practices such as communities of practice, which facilitate tacit knowledge and expertise sharing, are not adopted. 相似文献
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����֪ʶ��������Ϣ���� 总被引：56，自引：5，他引：51
基于对知识管理与信息管理之关系的几种典型论述的分析,重点阐述两者在范围、内涵、实施等方面的区别。指出知识管理是一种跨学科、综合性的研究领域,它与信息管理之间并不存在简单的包含或延伸关系;但知识管理对信息管理及其学科的发展,具有重要的启示作用。 相似文献
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This article explores the evolution of the role of academic journal articles submitted to the UK's Research Assessment Exercise (RAE). By reviewing their role, it is possible to see how the changes from quantitative to qualitative assessment (and the resulting problems surrounding the definition of ‘quality’ journals) has impacted both on the journals selected by academics for publishing their research and the assessment of them. Although only one part of RAE submissions, the listing of published research outputs provides the primary evidence for research quality to most RAE panels, and is a significant driver of the final grade awarded, and thus the funding received by submitting institutions. The RAE, being a peer‐reviewed assessment exercise, mirrors in some ways the peer‐review process immured within scholarly publication. The developing role of journal publications as a vehicle for academic research output is examined via the chronology of the RAE, before assessing the current situation in which published journal output formed almost 70% of all output assessed by RAE panels in the latest exercise. The impact of this increased importance of academic journals in the assessment process is considered not only for academics but also for the wider community, i.e. publishers and libraries. 相似文献
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??The Lotka's law and the Price law reveal some internal relatians between the scientists and their works.A starletcs is made on the papers written by the Chinese mathematics workers and published on 75 kinds of journals in the past ten years.Qn this hasis,Lotka' s expression ff??yx??=0.6472·(1/X2.12)of the Chinese mathematics workers is pbtained.The authors find that the distribution of the Chinese mathematicx workers accards with some canclusians of the expression and Price Law,but not with Lotka's Law. 相似文献
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基于案例教学的SIC服务模式研究 总被引：1，自引：0，他引：1
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[目的/意义]回顾图情档学科五年内的研究进展,有助于掌握本领域知识域的结构与演变。[方法/过程]使用文献计量法,对近5年图情档学科领域的20种中文期刊文献,从发文总量、高被引论文、学术影响力、研究热点及研究趋势预测等角度进行计量研究。[结果/结论]研究发现中文期刊发文量逐年下降,外文论文发文量年度占比逐年增长,领域内研究逐渐与国际接轨;学科领域持续跟进基础理论研究和实践创新研究,对数据研究、数字人文也保持着高度关注;处于数字与数据化的环境中,图情档学科领域亟待完成学科体系与能力的重构,趋向于数据科学和大数据方向;领域研究更加关注用户体验和信息资源共建共享。 相似文献
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为全面评价植物与动物学的基本研究和发展状况,从SCI下载ESI植物与动物学科所有期刊2008年至2011年所发表的全部论文的题录,统计分析其中高影响力作者、高影响力机构以及研究主题的发展变化。为消除作者和机构名不准确带来的误差,首先利用软件对题录数据中的同名作者和同名机构进行识别与归并。重点分析植物与动物学高影响力作者的学术卓越性、学术生产力和学术影响力,并对高影响力机构进行分层评价。主题分析采用共词分析和可视化分析等方法,对论文的关键词进行聚类,并以可视化手段展示植物与动物学的核心研究内容、热点及不同研究内容之间的关联。 相似文献
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《Behavioral & Social Sciences Librarian》2013,32(2):113-115
Forensic psychiatry, a multi-disciplinary field, presents research problems for practitioners and librarians. Subject indexes for the field cover each discipline separately, making a literature search or current awareness program difficult. The Samuel Bellet Library, located at the Hospital of the University of Pennsylvania, developed its own index to combat this problem. The index provides access to articles in the Library's journals and identifies articles to interest to Library users in other journals. Through monthly updates, distributed to Library users, the index is kept current as are the users. Reaction to the project has been positive; it functions well both as a literature search tool and as a current awareness program. 相似文献
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文章以1989-2018年中国农业经济领域学者的JCR期刊论文为分析样本,从发文规模、论文影响力、研究主题、在国际化研究中的贡献度等视角,对比分析中国学者国际化论文在世界中所处的地位,全面了解中国学者在国际化研究中所发挥的角色作用。分析发现,中国学者的国际化论文在规模和影响力上有所提升,但与美国、英国等农业科技强国的差距明显;尽管涌现出多个国际化研究的中国机构,但国际合作是中国研究走向世界舞台的主要途径。不过,中国机构间初步形成国际化研究合作网络,中国学者在国际合作研究中的贡献度也有明显提升,未来需要进一步培育中国机构和学者的内生能力,为全球农业经济和政策发展贡献有影响的中国理论。 相似文献
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This paper reports findings from an international survey into the research involvement and support of university teaching staff in a relatively new profession‐orientated discipline, publishing studies (PS). It uses these findings to consider barriers and opportunities for academic research both specifically in PS and more broadly in other profession‐orientated disciplines. Greater understanding was felt to be of value as universities internationally are increasingly being pressurized to create close links with the wider economy, produce employable students, and encourage relevant and implementable research. The survey suggests that while there is strong agreement among respondents that it is beneficial for those teaching PS to be research‐active, there was considerable variation in current levels of research activity. Respondents rated their research activity highest in departments with an active research culture and effective research support processes. Lack of time was the main reason cited for reduced or non‐involvement in academic research and while this is a common issue for academics, PS respondents isolated a number of exacerbating factors. Suggestions are offered for addressing identified barriers and pursuing new opportunities for research. The paper argues that as research outputs of academics are increasingly monitored it is important to consider how the full range of disciplines housed within institutions can be accommodated within research support. Overall, the research has a strong relevance for interdisciplinary areas, and other profession‐ and practice‐orientated subjects within universities. 相似文献
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运用引文增强技术对《档案管理》的发文和被引数据进行深层关联分析,从施引学科、施引群体、施引机构、学术宣传效果等角度探讨该刊的学术影响力特征及影响因素。本研究发现该刊的学科影响力主要局限在档案学领域,施引机构多集中在高校,该刊的论文价值发现周期偏长,被错引的比例较高,且高频施引者占比较少,建议该刊扩大选题范围,积极吸纳亲缘学科的相关论文;奖励活跃贡献者,提高作者回报率;重视学术宣传工作,降低被误引的概率,从而进一步提升学术影响力。 相似文献
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Dennis N. Ocholla 《International Information and Library Review》2013,45(3):119-143
This paper discusses the information-seeking behaviour of academics in relation to the productivity of academics in South African Universities, with particular reference to the University of Zululand, through a survey of 105 academics. It was established that the nature of the discipline and the rank of the academic, which normally corresponds with the academic qualification, experience, exposure and research productivity level, largely determine the information-seeking behaviour. Academics mainly need information for career development, and occupational and professional needs. Furthermore, university libraries, which currently face budget cuts on acquisitions, still play a pivotal role in information access by the academics. It is confirmed that the use of “local environment” is dominant for intra- and inter-university information access network and system. It is recommended that avenues that work colleagues can use to interact should be supported, and career challenges that stimulate productivity by academics, such as research and publication, should be maintained and sustained. 相似文献
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《International Information and Library Review》1999,31(3):119-143
This paper discusses the information-seeking behaviour of academics in relation to the productivity of academics in South African Universities, with particular reference to the University of Zululand, through a survey of 105 academics. It was established that the nature of the discipline and the rank of the academic, which normally corresponds with the academic qualification, experience, exposure and research productivity level, largely determine the information-seeking behaviour. Academics mainly need information for career development, and occupational and professional needs. Furthermore, university libraries, which currently face budget cuts on acquisitions, still play a pivotal role in information access by the academics. It is confirmed that the use of “local environment” is dominant for intra- and inter-university information access network and system. It is recommended that avenues that work colleagues can use to interact should be supported, and career challenges that stimulate productivity by academics, such as research and publication, should be maintained and sustained. 相似文献
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Richard S.J. Tol 《Journal of Informetrics》2013,7(2):522-527
This paper applies the Ijiri–Simon test for systematic deviations from Gibrat's law to citation numbers of economists. It is found that often-cited researchers attract new citation numbers that are disproportionate to the quality of their work. It is also found that this Matthew effect is stronger for economists who started their academic career earlier. 相似文献
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[目的/意义] 文章的被引频次一直是量化评价一篇论文学术影响力的重要指标。但在不同学科不同年份发表的论文会因该领域研究论文数、引用滞后等因素呈现较大的差异。因此在对比两篇论文时，难以简单依据被引频次的绝对值来评判论文影响力大小。为此，本文设计了一个新的可计算数学模型，使得每篇论文可以有一个标准化的指标，以便对不同学科不同年份发表的论文的学术影响力进行直接比较。[方法/过程] 通过分析2006、2017两年中国科技类学术期刊各学科论文的被引频次分布规律，采用同学科论文被引频次的分布形态最接近对数正态分布的先设条件，提出一种被引频次标准化指数——Paper Citation Standardized Index （简称PCSI，中文"论文引证标准化指数"）。最后以中国科协优秀科技期刊论文评选结果为例，将它们与论文所属学科全部论文进行实证对比研究。[结果/结论] 结果证明，PCSI对不同年份、不同学科论文的被引频次进行了标准化，反映了被引频次的线性差距，是一种较为理想的单篇论文学术影响力比较评价工具。 相似文献
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[目的/意义] 文章的被引频次一直是量化评价一篇论文学术影响力的重要指标。但在不同学科不同年份发表的论文会因该领域研究论文数、引用滞后等因素呈现较大的差异。因此在对比两篇论文时，难以简单依据被引频次的绝对值来评判论文影响力大小。为此，本文设计了一个新的可计算数学模型，使得每篇论文可以有一个标准化的指标，以便对不同学科不同年份发表的论文的学术影响力进行直接比较。[方法/过程] 通过分析2006、2017两年中国科技类学术期刊各学科论文的被引频次分布规律，采用同学科论文被引频次的分布形态最接近对数正态分布的先设条件，提出一种被引频次标准化指数——Paper Citation Standardized Index （简称PCSI，中文"论文引证标准化指数"）。最后以中国科协优秀科技期刊论文评选结果为例，将它们与论文所属学科全部论文进行实证对比研究。[结果/结论] 结果证明，PCSI对不同年份、不同学科论文的被引频次进行了标准化，反映了被引频次的线性差距，是一种较为理想的单篇论文学术影响力比较评价工具。 相似文献