共查询到19条相似文献，搜索用时 765 毫秒
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信息分布的马太效应指的是少数作者生产大部分信息，该效应曾被一些文献统计资料所验证。本文随机抽取强国论坛讨论区的部分网民及其帖文数量作为样本，通过对网民数量、发帖量和注册时间等变量的统计分析发现，在强国论坛，信息生产者（网民）发布的信息也符合马太效应，基本与普赖斯提出的“平方根定律”相吻合。 相似文献
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按照文献计量学有关方法,对2000年以来《编辑学报》的学术影响力进行分析,并采取秩和检验、Spearman(或Kendall)和K-S等方法(检验水准α=0.05)对该刊论文第一作者与论文数量之间的关系进行洛特卡定律的适应性检验。结果:第一作者人数与理论作者人数无差异(Z=1.107,P=0.172),存在相关性(rs=0.914,P0.001(或rK=0.843,P0.001))和一致性(Z=1.171,P=0.129)。说明该刊论文第一作者与论文数量之间的关系与洛特卡定律基本符合。 相似文献
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对嘉兴府志所载明清文献著者的洛特卡分布分析 总被引：2，自引：0，他引：2
洛特卡定律反映了科研论文数量与作者数量之间的统计规律,本文通过对清道光二十（1840）年刻本《嘉兴府志》所载的文献著者分布进行统计分析,引入洛特卡定律计算参数,并最终通过了k-s检验。因此可以尝试将洛特卡定律引入古典目录学研究领域,指导现实工作。 相似文献
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本文运用布拉德福定律、洛特卡和普赖斯定律等对“陈寅恪研究”公开发表的论著进行了统计分析，测定了核心期刊（载文率高的期刊）和杰出作者，并从发表时间上对论著进行了分析。 相似文献
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Egghe公式的推广:基于广义洛特卡定律的θ与β关系 总被引：5，自引：0，他引：5
Egghe公式是基于狭义洛特卡定律而推导出来的科学成果在科学工作者中的集中程度的定量描述的公式。由于狭义洛特卡定律不具有普遍性 ,因此Egghe公式的适用范围极其有限。本文从广义洛特卡定律出发 ,推导出θ与 β的关系 ,经经验数据的验证 ,精度较高 ,具有很强的适用性 相似文献
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洛特卡定律、普赖斯定律和我国数学科学文献 总被引：2，自引：1，他引：1
本文统计了近10年来我国数学工作者在75种刊物上发表的论文,得出我国数学工作者的洛特卡表达式f(y_x)=0.6472·(1/X~(2.12))。作者发现分布不符合洛特卡定律,但符合它和普赖斯定律的某些结论。 相似文献
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网络著者分布规律是网络计量学的一项重要研究内容。本文以Python.cn学术性论坛为样本,在统计分析的基础上,得出“著者数—发帖量”符合幂指曲线分布、“发帖量—著者等级”符合指数曲线分布的基本结论。 相似文献
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林业大学学报论文第1作者和合作者的洛特卡分布对比 总被引：2，自引：0，他引：2
In 1926,Lotka,an America Statistician,established for the first time the Law of Lotka which indicated the relationship between authors of scientific treaties and the quantity of them.The article takes three titles of journals published by universities of forestry as an example and makes an expository comprison which cover four parts as data source,data processing,result analysis,and research achievements of foreign countries.1 illus.5 tables. 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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Sarah Gotschall 《Legal Reference Services Quarterly》2013,32(2):149-163
Surveys of law librarians show concern with the lack of cost-effective research skills of law students and new associates. Some commentators call for greater emphasis on the subject in legal research classes. To explore whether the subject merits increased instructional attention, the author surveyed second- and third-year law students at the University of Arizona James E. Rogers College of Law about their summer research experiences. The purpose of the survey was to find out how much importance summer employers placed on containing online research costs. The student survey results contradict the commonly expressed view that employers are greatly concerned with containing online research costs. The author posits that law library surveys generally reflect the experiences of large firm librarians, whereas the great majority of students and practicing attorneys do not work at these organizations. The concerns of these librarians might not be as relevant for students who work at smaller firms and government organizations. The author notes that the survey results suggest that there is no need for increased emphasis on cost-effective research at schools that do not have a large percentage of students who go on to work at large firms. 相似文献
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《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(1-2):67-68
Abstract Jacksonville State University's (JSU) Houston Cole Library (HCL) has always provided access to required course readings for its nursing program. In the past, HCL only offered print reserves. Now, as JSU's nursing programs move to the online arena, the Library's presence will be needed even more. Along with providing access to required course readings via an electronic reserve system, Docutek's ERes, the move to an online environment will require assistance in navigating the online system. Through a survey instrument, the authors determined the percentage of the JSU nursing faculty currently using the electronic reserve system. The authors also surveyed the JSU nursing students to determine the impact of the system on their studies. 相似文献
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J.C. Valderrama-Zurian D. Melero-Fuentes R. Aleixandre-Benavent 《Journal of Informetrics》2019,13(1):434-448
Eponyms are very common in some scientific fields, and they are a fundamental part of the language and historical culture of researchers, as many people have given their names to procedures, laws, formulas, tests, hypotheses, diseases and numerous processes. Despite being etymologically empty terms, some of these names are so deeply rooted that it would be very difficult to do without them. In this paper, 2313 eponyms are analysed from 16,787 bibliometric documents indexed in the Web of Science Core Collection database. A total of 187 eponyms were identified, most of which belong to the areas of information science, statistics and economics. The most frequent eponyms were Hirsch (325), Lotka (214), Bradford (186), Price (146), Egghe (76), Garfield (74) and Zipf (59). Among the most frequent eponyms, the most contemporary, Hirsch and Egghe, were referenced in the same year they were incorporated into the scientific literature. All conceptual networks have the term bibliometrics as their core, except the Hirsch network, in which the term h-index is more central. Currently, the debate continues in the scientific literature, with arguments for and against the use of eponyms. 相似文献
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基于论文发表的普赖斯定律,以5本高被引核心期刊《科学学研究》《科研管理》《科学学与科学技术管理》《中国科技论坛》《研究与发展管理》刊载的1141篇文献为样本,实证检验论文被引频次的影响因素。结果表明：（1）论文被引频次整体程度不高,论文被引频次对刊载时间有较强依赖性的同时,二者之间也存在非线性关系;（2）作者是否合作、论文是否定量研究、论文下载次数、期刊影响因子与论文被引频次之间显著正相关,而期刊年发文量与论文被引频次之间显著负相关,且第一作者所在机构、性别以及论文受到基金资助的数量、期刊主办方等与论文被引频次之间不存在显著相关性。本研究的主要发现是论文特征决定论文被引频次,并得出相关启示,提出研究不足及未来方向。 相似文献
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高校学生网络阅读行为及相关特性分析——北京市5所高校学生网络阅读状况调查 总被引：1，自引：0，他引：1
文章基于对北京市5所高校学生网络阅读状况的调查，分析了高校学生的网络阅读行为及相关特性。网络阅读已经在广大高校学生的学习和生活中占有重要的地位，他们每天的网络阅读时间和传统阅读时间已经很接近，分别为1．55和2．16小时。他们最常阅读的3类网络文档是网络新闻、博客和学术性书刊文章。高校学生在性别、学历层次、网龄长短、有无博客等方面的不同会导致某些网络阅读特性的差异。文章提出网络阅读系数的概念，用以计量网络阅读在整个阅读中的比重。 相似文献
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《Journal of Web Librarianship》2013,7(3):322-332
This article provides a case study of how the University of Nebraska College of Law and Schmid Law Library use “buttons” to manage Law College faculty members’ and librarians’ online presence. Since Google is the primary search engine used to find information, it is important that librarians and libraries assist Web site visitors in finding relevant information about faculty members at an academic institution. Easily identifiable buttons allow visitors to navigate to faculty scholarship in the University of Nebraska-Lincoln Digital Commons, SSRN Web site, or both, in an academic service such as lessons from the Center for Computer-Assisted Legal Instruction and in social software sites like Twitter, Facebook, or LinkedIn. The case study includes (1) how the project was implemented, (2) the feedback and results of a survey, and (3) an analysis of Web site statistics, clicks, and links data gathered via Google Analytics. This project was a partnership between the Law College Communications Department, Law College Administration, and the Law Library, involving law faculty, staff, and librarians. The buttons project was considered a successful venture by participating faculty members; it also provided an opportunity for face-to-face conversation between faculty members and librarians about digital scholarship and social media in the academic environment. 相似文献