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《Journal of Informetrics》2020,14(1):101006
We present two ways (instantaneous and cumulative) to transform bibliographic networks, using the works’ publication year, into corresponding temporal networks based on temporal quantities. We also show how to use the addition of temporal quantities to define interesting temporal properties of nodes, links and their groups thus providing an insight into evolution of bibliographic networks. Using the multiplication of temporal networks we obtain different derived temporal networks providing us with new views on studied networks. The proposed approach is illustrated with examples from the collection of bibliographic networks on peer review. 相似文献
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《Journal of Informetrics》2020,14(1):100988
This paper proposes a simple, flexible, axiom-based mechanism for facilitating the comparison between a scholar's citation count and the visibility of the journals wherein the scholar's articles were published. The goal is to help research review bodies easily grasp the distinction these two forms of scholarly accomplishment and to provide a transparent way to articulate expectations about them to scholars. The approach is demonstrated using a widely applied and cooperative functional form that can reflect, via different parameter values, a wide range of possible beliefs about the relative merits of citation counts and journal visibility. 相似文献
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《Journal of Informetrics》2020,14(1):101004
The number of received citations have been used as an indicator of the impact of academic publications. Developing tools to find papers that have the potential to become highly-cited has recently attracted increasing scientific attention. Topics of concern by scholars may change over time in accordance with research trends, resulting in changes in received citations. Author-defined keywords, title and abstract provide valuable information about a research article. This study performs a latent Dirichlet allocation technique to extract topics and keywords from articles; five keyword popularity (KP) features are defined as indicators of emerging trends of articles. Binary classification models are utilized to predict papers that were highly-cited or less highly-cited by a number of supervised learning techniques. We empirically compare KP features of articles with other commonly used journal-related and author-related features proposed in previous studies. The results show that, with KP features, the prediction models are more effective than those with journal and/or author features, especially in the management information system discipline. 相似文献
4.
《Journal of Informetrics》2020,14(1):101010
This paper analyses the influence of geographic distance on knowledge flows, measured through citations to scientific publications. Previous works using the same approach are limited to single disciplines. In this study, we analyse the Italian scientific production in all disciplines matured in the period 2010–2012. To calculate the geographic distances between citing and cited publications, each one is associated with a “prevalent” territory on the basis of the authors’ affiliations. The results of the application of a gravity model, estimated using ordinary least squares regression, show that despite the spread of IT, geographic distance continues to be an influential factor in the process of knowledge flows between territories. In particular, the analysis reveals that the effect of geographic distance on knowledge flows is significant at the national level, not negligible at the continental level, but completely irrelevant at the intercontinental level. 相似文献
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[目的/意义] 以传染病领域为例,深入调研机构用户对重大公共卫生事件类智库的信息需求,为以用户为中心的传染病智库建设提供决策支持。[方法/过程] 通过问卷和半结构化访谈,收集政府机构、医疗机构、科研机构、疾控机构和企业机构5类机构用户的信息需求。利用扎根理论逐级编码,构建传染病智库机构用户信息需求模型。[结果/结论] 模型包括影响、认知和实现3个核心范畴,反映满足机构用户传染病信息需求的障碍,用户对信息载体、特征、内容需求和对传染病智库的功能期望。据此对未来传染病智库建设提出相应的对策建议。 相似文献
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文章旨在了解国内医学研究者科研信息行为的基本状况,通过在线问卷调查工具调查了531名医学研究者,针对与科研信息行为相关的信息获取、信息资源、信息素养、信息利用习惯和对图书馆服务的评价等因素进行调查,分析结果提出建议,以期医学图书馆能够有针对性地对研究者提供科研信息服务,促进医学科研发展。 相似文献
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8.
睡美人与王子文献的识别方法研究 总被引：1，自引：0，他引：1
[目的/意义] 研究睡美人与王子文献的识别方法。分析唤醒机制,为未来在学术交流体系中发现"王子"作者,发掘、唤醒低被引和零被引文献的潜在价值提供理论依据。[方法/过程] 采用被引速率指标和睡美人指数两种客观指标识别1970-2005年临床医学四大名刊上发表的睡美人文献;基于以下4个原则寻找唤醒睡美人的王子文献:①发表于被引突增的附近年份;②本身被引次数较高;③与睡美人文献的同被引次数高;④在年度被引次数曲线上,王子文献对睡美人文献的"牵引或拉动"作用非常显著,即至少在睡美人文献引用突增的附近年份,王子文献的年度被引次数应高于睡美人文献。[结果/结论] 由于考虑了全部引文窗的引文曲线,被引速率指标能够识别出那些被引生命周期长、至今仍持续不断高频被引的论文;睡美人指数能够快速识别出睡美人文献,但却无法反映年度被引次数达到峰值之后的引文曲线;将被引速率+发表最初5年年均被引次数两个指标结合起来能够更好地识别睡美人文献。分析发现,综述、指南、著作等"共识型"的文献对于引发那些提出了新思想但尚未被认可的睡美人文献的被引突增起到了关键作用。建议事后识别睡美人文献可采用客观指标与主观界定相结合的方法,事前预测睡美人文献要注意追踪其是否被"共识性"文献推荐和引用,学术评价要特别关注被引速率低的论文。 相似文献
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Luqing Zhang Yunfeng Wang Ming Xiao Qunying Han Jiong Ding 《Anatomical sciences education》2008,1(2):56-59
Universities and medical schools in China are faced with an ongoing shortage of cadavers for education and research because of insufficient numbers of cadaver donations. This article will examine the main obstacles to cadaver donation in the Chinese culture. These include superstitious traditional views about the body, a lack of legislation regulating donations, and a deficiency of effective channels for cadaver donations. Cadaver dissection has always been the most important method of teaching anatomy to medical students. Today, ethics courses have also become essential to a complete medical education. Contemporary physicians need to be equipped to navigate the myriad of moral and ethical issues inherent to modern medicine. In China, cadaver donations lag behind those in other countries, threatening to create valid disadvantages in medical education. New legislation and public education are necessary to remove cultural barriers and change Chinese views on cadaver donation. For this reason, the Department of Human Anatomy at Nanjing Medical University has established the “Educational Center for Medical Ethics.” The goal of the Center is to promote proper respect for cadavers used for medical research and education, cherish the human lives the cadavers represent, and gain the trust of potential donors. Anat Sci Ed 1:56–59, 2008. © 2008 American Association of Anatomists. 相似文献
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从图书情报学的研究对象、研究内容、研究方法和学科体系的形成等方面论述了自知识管理研究以来图书情报学领域出现的变化,并对知识管理与图书情报学的互动关系等进行了综述。在此基础上,简要总结了目前图书情报领域中的知识管理研究存在的问题,并对今后图书情报领域中知识管理的研究进行了展望。 相似文献