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Cliff Morgan 《Learned Publishing》2004,17(1):31-37
This article provides an overview of those metadata schemes that are of most relevance to STM journal publishers. The current status of each scheme is discussed, and references given for detailed specifications. 相似文献
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F G Livingston 《Bulletin of the Medical Library Association》1967,55(3):316-320
The journal check-in project described here, though based on a computerized system, uses only unit-record equipment and is designed for the medium-sized library. The frequency codes used are based on the date printed on the journal rather than on the expected date of receipt, which allows for more stability in the coding scheme. The journal's volume number and issue number, which in other systems are usually predetermined by a computer, are inserted at the time of check-in. Routine claiming of overdue issues and a systematic binding schedule have also been developed as by-products. 相似文献
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为探究面向学科新兴主题探测领域多源科技文献融合过程中的时滞性问题,本文设计了多源科技文献时滞计算方案。首先,从获取的4种科技文献数据集中提取学科主题,计算学科主题间的相似度,构建相似矩阵;其次,基于匈牙利最优匹配算法寻求相似度损耗最小条件下的最优组合;最后,构建线性方程模型并拟合计算时滞程度。本文以2009-2016年农业学科领域337790篇摘要文本为实验数据,抽取基金项目文本学科主题为250个、专利文献为260个、期刊论文为260个、会议论文为240个,利用上述多源科技文献时滞计算方案实验。结果表明:期刊论文滞后于基金项目文本和会议论文1年,专利文献滞后于期刊论文1年,结合以往对不同学科领域数据的研究结果,验证了多源科技文献时滞计算方案的可行性和有效性,同时也为多源科技文献融合策略的制定提供新思路。 相似文献
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Louisa Ha 《Learned Publishing》2003,16(3):193-199
This article re‐examines the economics of publishing scholarly journals and illustrates the dilemma of publisher identity and publication format with a case study of the Association for Education in Journalism and Mass Communication's Media Management and Economics division. The study investigates the perceived interest and demand for a society‐published journal for the field of media management and economics and the preferred format for that journal – print or online. Results showed a divided opinion on the support of a society‐published journal and no consideration of the benefits or harms of journal publishing to the society. The print journal, though a desirable format for authors, is deemed uneconomical. The online journal is viewed as a feasible publication outlet, but its status as a prestigious journal is doubtful. Applications of scholarly journal publishing and economic models to the case are discussed. 相似文献
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《Journal of Informetrics》2014,8(1):181-196
The journal impact factor (JIF) reported in journal citation reports has been used to represent the influence and prestige of a journal. Whereas the consideration of the stochastic nature of a statistic is a prerequisite for statistical inference, the estimation of JIF uncertainty is necessary yet unavailable for comparing the impact among journals. Using journals in the Database of Research in Science Education (DoRISE), the current study proposes bootstrap methods to estimate the JIF variability. The paper also provides a comprehensive exposition of the sources of JIF variability. The collections of articles in the year of interest and in the preceding years both contribute to JIF variability. In addition, the variability estimate differs depending on the way a database selects its journals for inclusion. In the bootstrap process, the nested structure of articles in a journal was accounted for to ensure that each bootstrap replication reflects the actual citation characteristics of articles in the journal. In conclusion, the proposed point and interval estimates of the JIF statistic are obtained and more informative inferences on the impact of journals can be drawn. 相似文献
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Michel Zitt 《Journal of Informetrics》2010,4(3):392-406
The principle of a new type of impact measure was introduced recently, called the “Audience Factor” (AF). It is a variant of the journal impact factor where emitted citations are weighted inversely to the propensity to cite of the source. In the initial design, propensity was calculated using the average length of bibliography at the source level with two options: a journal-level average or a field-level average. This citing-side normalization controls for propensity to cite, the main determinant of impact factor variability across fields. The AF maintains the variability due to exports–imports of citations across field and to growth differences. It does not account for influence chains, powerful approaches taken in the wake of Pinski–Narin's influence weights. Here we introduce a robust variant of the audience factor, trying to combine the respective advantages of the two options for calculating bibliography lengths: the classification-free scheme when the bibliography length is calculated at the individual journal level, and the robustness and avoidance of ad hoc settings when the bibliography length is averaged at the field level. The variant proposed relies on the relative neighborhood of a citing journal, regarded as its micro-field and assumed to reflect the citation behavior in this area of science. The methodology adopted allows a large range of variation of the neighborhood, reflecting the local citation network, and partly alleviates the “cross-scale” normalization issue. Citing-side normalization is a general principle which may be extended to other citation counts. 相似文献
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A brief historical account of tropical medicine as a science is given, followed by a short survey of the development of the literature in the field. The citations indexed in Tropical Diseases Bulletin for a forty-eight-month period (1972-1975) were analyzed according to the journal in which they were published and the language in which they appeared. The results of the study conformed to Bradford's law of bibliographic distribution. The reference scattering coefficient was determined to be 0.504, which indicated a high concentration of articles in relatively few journal titles. A rank order list of sixty-one journal titles is given in an appendix. The study showed English to be the most important language in the literature in terms of productivity. The results of the study may be used as an acquisition tool for developing a journal collection in tropical medicine. 相似文献
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Cancelled charge slips collected over a one-year period supply the data for this analysis of circulation in the Yale Medical Library. Full-time teaching faculty are the heaviest users of journal literature, and students, of monograph literature. Faculties of Medical School departments are compared in terms of their use of material in individual subjects. Subject literatures are analyzed in terms of groups of users borrowing from them. The extent to which journal titles used by medical students are also used by Medical School faculty is examined. One of the products of the study is a rank list of journal titles used in the Library. Results are presented in several tables. 相似文献
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近年来,期刊影响因子的人为操纵受到学术界广泛关注,期刊过度自引成为人为操纵影响因子的重要手段.期刊自引率是识别影响因子人为操纵的敏感指标,但对小集团内部期刊互引和其他形式人为操纵的识别却无能为力.在该研究中,深度挖掘了自引率、扩散因子、被引半衰期、开放因子和互引指数在期刊影响因子人为操纵识别中的应用. 相似文献
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This study examines aspects of scholarly journal publishing in the Nordic countries. On average half of Nordic journals publish online. In most Nordic countries, commercial publishers predominate; however, in Finland the majority are society publishers. The number of open access journals is low, in line with international figures. There is concern to maintain local languages in journal publishing. A majority of the journals publishing in local languages are within social science, humanities, and arts; the STM sector publishes in English. English‐language publications are favoured in research assessments, international recognition, and impact, while the visibility of local‐language scholarly journals in international databases is low. The Nordbib program supports Nordic scholarly journals and fosters co‐operation with publishing companies and learned societies over migration to e‐publishing; it also supports open access. The article discusses future challenges for journal publishing, pointing out the problems of small journal publishers and the need for co‐operation between stakeholders. 相似文献
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纯网络杂志质量控制探讨 总被引：5，自引：1，他引：5
纯网络杂志是一种新型的期刊种类。本文对纯网络杂志质量评价标准和方法 ,以及质量控制进行了探讨 ,指出纯网络杂志质量控制的重点是内容控制。采用专业的、隐名的、外部人审稿制度 (Anonymousoutsidereferring) ,是学术性纯网络杂志内容质量控制的有效方法。 相似文献
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基于引用期刊质量的影响因子修正法 总被引：1，自引：0，他引：1
长期以来学术期刊影响因子的计算仅仅统计被引用文章的篇数而没有考虑引用期刊的学术质量,这种计算方法有不尽合理之处.认为在计算影响因子时应充分考虑引用期刊的质量,建议以引用文献的期刊质量为权重对原影响因子公式进行修正.经统计学模拟计算表明,修正后的公式能更客观地对期刊进行评价,这将有利于建立起更公正、合理的期刊评价体系. 相似文献
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对 GDL IS期刊管理系统的设置、功能欠缺和本馆实践中发现的问题 ,进行探讨并提出改进建议 ,有助于提高高校图书馆自动化管理的期刊管理质量和服务水平。也是高校图书馆向 GDLIS期刊管理系统提出了更高的用户需求 相似文献
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具备条件的医学期刊可以考虑争取进入MEDLINE,争取进入MEDLINE的过程实际上是一个学习、提高的过程,也是转变办刊观念、使期刊逐步与国际接轨的过程。这个过程对提高期刊水平,缩短差距,会起到很大的促进作用。 相似文献
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This article outlines a methodology to generate a list of local core journal titles by doing a citation analysis and details the process for retrieving and downloading data from Scopus. It analyzes correlations among citation count, journal rankings, and journal usage. The results of this study reveal significant correlations between journal rankings and journal usage. No correlation with citation count has been found. Limitations and implications for collection development and outreach are also discussed. 相似文献