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网络引文引证的可追溯性研究一直是学术界普遍关注的热点.通过获取CSSCI 2010年收录的情报学期刊论文被科研人员引证的网络引文作为数据样本,实证分析情报学科研人员引证网络引文的总体可追溯情况,不同域名、网页类型网络引文与可追溯性以及URLs深度与可追溯性之间的关系,并最终针对可追溯性问题提出相应的策略来提高科研人员学术交流的效果. 相似文献
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Studies of technological change constitute a field of growing importance and sophistication. In this paper we contribute to the discussion with a methodological reflection and application of multi-stage patent citation analysis for the measurement of inventive progress. Investigating specific patterns of patent citation data, we conclude that single-stage citation analysis cannot reveal technological paths or lineages. Therefore, one should also make use of indirect citations and bibliographical coupling. To measure aspects of cumulative inventive progress, we develop a “shared specialization measure” of patent families. We relate this measure to an expert rating of the technological value added in the field of variable valve actuation for internal combustion engines. In sum, the study presents promising evidence for multi-stage patent citation analysis in order to explain aspects of technological change. 相似文献
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《Information processing & management》2001,37(5):661-675
The Web is revolutionizing the entire scholarly communication process and changing the way that researchers exchange information. In this paper, we analyze two views of information production and use in computer-related research based on citation analysis of PDF and Postcript formatted publications on the Web using autonomous citation indexing (ACI), and a parallel citation analysis of the journal literature indexed by the Institute for Scientific Information (ISI) in SCISEARCH. Our goal is to establish a baseline profile of computer science “literature” as it appears in the published journals and as it appears on the publicly available Web. From this starting point, we hope to identify additional research areas dealing with information dissemination and citation practices in computer science and the utility of autonomous citation indexing on the Web as an adjunct to commercial indexing 相似文献
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This research contributes to the intra-organization, inter-organization, and new product development (NPD) management literature by studying the impact of a firm's internal organizational design on the communication within and performance of NPD projects conducted with strategic alliance partners. The empirical data were collected from three in-depth case studies of network lead companies (NLCs) operating in different industries. The three NLCs have different internal organizational designs, ranging from very flexible “organic” to very rigid “mechanistic.” In each NLC, a successful new-to-firm product development project was chosen for further detailed investigation. First, we identify the role the alliance's NPD project characteristics and industry characteristics play in determining the “intensity level” and “media richness” of communication required between the alliance's NPD project partners. Then, we examine how the internal organizational design influences the actual intensity and media richness of communication of the alliance's NPD project that matches our assumptions of what is required. 相似文献
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Innovation as co-evolution of scientific and technological networks: exploring tissue engineering 总被引：2，自引：0，他引：2
The question of exactly how science is commercialized is an important one. While the social structures of “science” and “technology” are distinctive, recent work suggests that scientific and technological ideas in fact co-evolve. This paper addresses the dynamics of such co-evolution: are scientific networks deeply co-mingled with networks through which technology is created and if so how? It does so in a study of an emerging area of biomedicine—tissue engineering. The research is based on a novel methodology that takes advantage of the fact that an idea is often inscribed in both a patent and paper, thus forming a patent–paper pair. Starting with the pair, it is possible to trace the citation network of patents, papers, inventors and authors, combining traditional bibliometric analysis with in-depth interviews to provide new insights. The results show that for this case there exist distinctive scientific and technological networks. Furthermore, while there is evidence of overlap, it is neither co-publishing nor citation as might be predicted from current literature. Rather co-mingling exists through founding, licensing, consulting and advising. This has implications for our understanding of the processes through which spillovers arise, the way in which commercialization and technology transfer should be structured and for recent debates on conflict of interest in biomedicine. 相似文献
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This paper describes a study using the citation analysis technique to select journals that would be used in the livestock industry. The study determines the principal journals to which a livestock library should subscribe, thus obtaining the highest possible utility of materials.By using a data base of 114 journals for a period of four years (1980–1983), citation data were applied on the Bradford bibliograph and Bradford-Zipf distribution to determine the ranking of journals in the industry and the “core journals.”It was discovered that the Journal of Animal Science is the most cited journal, with 889 citations, and the core journals were 18 in number, having 11,070 citations representing 32.3% of the total citations. 相似文献
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John W. Snapper 《Ethics and Information Technology》1999,1(2):127-135
Although commonly confused, the values inherent in copyright policy are different from those inherent in scholarly standards for proper accreditation of ideas. Piracy is the infringement of a copyright, and plagiarism is the failure to give credit. The increasing use of Web-based electron publication has created new contexts for both piracy and plagiarism. In so far as piracy and plagiarism are confused, we cannot appreciate how the Web has changed the importance of these very different types of wrongs. The present paper argues that Web-based publication lessens the importance of piracy, while it heightens the need for protections against plagiarism. Copyright policy protects the opportunity for publishers to make a profit from their investments. As the cost of publication decreases in the electronic media, we need fewer copyright protections. Plagiarism is the failure to abide by scholarly standards for citation of sources. These standards assure us that information can be verified and traced to its source. Since Web sources are often volatile and changing, it becomes increasingly difficult and important to have clear standards for verifying the source of all information. 相似文献
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Bibliometric maps of field of science 总被引：2，自引：1，他引：2
Irina Marshakova-Shaikevich 《Information processing & management》2005,41(6):1534-1547
The present paper is devoted to two directions in algorithmic classificatory procedures: the journal co-citation analysis as an example of citation networks and lexical analysis of keywords in the titles and texts. What is common to those approaches is the general idea of normalization of deviations of the observed data from the mathematical expectation. The application of the same formula leads to discovery of statistically significant links between objects (journals in one case, keywords — in the other). The results of the journal co-citation analysis are reflected in tables and map for field “Women’s Studies” and for field “Information Science and Library Science”. An experimental attempt at establishing textual links between words was carried out on two samples from SSCI Data base: (1) EDUCATION and (2) ETHICS. The EDUCATION file included 2180 documents (of which 751 had abstracts); the ETHICS file included 807 documents (289 abstracts). Some examples of the results of this pilot study are given in tabular form . The binary links between words discovered in this way may form triplets or other groups with more than two member words. 相似文献
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在调研近年来国内外有关不同学科文献对网络信息利用率研究成果的基础上,从引文数量和引文域名类型的角度对各学科文献对网络信息的利用率进行了比较,并总结了影响不同学科对网络信息利用率的因素,文章最后提出了网络引文研究的前景与存在的问题。 相似文献
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利用中文社会科学引文索引(CSSCI)数据,对1998-2007年《情报科学》刊载论文的被引数据进行统计分析,包括被引频次分析、即年指数、影响因子、h指数、g指数和经典文献。结果表明,《情报科学》已经具备了较高的学术影响力。 相似文献
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选择1999年、2004年和2009年社会科学学科中的情报学、历史学、新闻学、教育学和社会学的一种核心期刊中全部论文作为统计样本,对其网络引文的总体发展状况、网络引文语种和网络域名的引用情况等进行统计分析,以此对我国社会科学研究中对网络学术信息资源利用情况进行探讨。初步的结论是：社会科学网络引文率逐渐增长,情报学网络引文量最高,教育学、新闻学和社会学网络引文量较高,历史学网络引文量最低。 相似文献
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网络环境下学术信息传播的变革 总被引：6，自引：0，他引：6
学术信息传播是人类科学活动的组成部分，是推动科学发展的重要手段。本文介绍了学术信息传播模式的发展历史和研究现状，以参与学术信息传播过程的主要机构为出发点，探讨了网络环境下学术信息传播过程的变化，并简要分析了学术信息传播模式的发展趋势。 相似文献
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Web of Science与Google Scholar的引文分析比较研究 总被引：1，自引：0，他引：1
本文以图书情报领域期刊为研究样本,分别从引文数量、引文出版年、引文类型、引文语种和引文重合率几个方面对Web of Science和Google Scholar两个引文分析工具进行比较,并对Google Scholar的引文特征进行深入探讨,对二者分别作为引文分析工具的优劣势进行总结。 相似文献
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Scholarly communication is undergoing transformation under the confluence of many forces. The purpose of this article is to explore trends in transforming scholarly publishing and their implications. It examines how collaboration and volume of information production were changed over the past century. It also explores how older documents are used under today’s network environment where new information is easily accessible. Understanding these trends would help us design more effective electronic scholarly publishing systems and digital libraries, and serve the needs of scholars more responsively. 相似文献
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The World Wide Web is a popular “tool” for companies. It can be used as a method of communication between companies and their customers; it also allows organizations to setup virtual storefronts that can be accessed by customers from all over the world. The ability to understand customers’ behavior is extremely important as companies strive to increase the usability and profitability of their web service. The concept of a session is a popular unit of measurement used to analyze recorded information. However, this concept is currently rather abstract and lacks definition. How we measure a session is a fundamental question for web services utilizing this concept. Currently, this question has no real answer. This paper presents a session timeout threshold model based on empirical observations as an initial answer to this question. The model seeks to provide accurate session data with respect to individual web services. 相似文献
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外文学术图书,对于高校的教学、科研活动有较高的学术指导价值。对外文学术电子图书进行评价能够全面反映其影响力。本文综合运用Altmetrics和传统的引文评价,利用Bookmetrix工具,明确对不同学科（以化学、社会科学为例）的学术电子图书进行探索性研究,对文献计量指标（引文）与Altmetrics指标（Mendeley读者数和下载量）的相关性与一致性进行定量分析,并对引文量、读者数、下载量是否有显著性差异进行了非参数检验。研究发现：Citations、Mendeley Readers、Downloads具有较高的覆盖率,经Mann-Whitney非参数检验,化学和社会科学的外文学术电子图书的被引量、读者数没有显著差异,但是二者的下载量有显著差异。化学图书的被引量与Mendeley读者数的相关性明显高于社会科学图书的被引量与Mendeley读者数的相关性。 相似文献
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A substantial amount of research has focused on the persistence or availability of Web citations. The present study analyzes Web citation distributions. Web citations are defined as the mentions of the URLs of Web pages (Web resources) as references in academic papers. The present paper primarily focuses on the analysis of the URLs of Web citations and uses three sets of data, namely, Set 1 from the Humanities and Social Science Index in China (CSSCI, 1998–2009), Set 2 from the publications of two international computer science societies, Communications of the ACM and IEEE Computer (1995–1999), and Set 3 from the medical science database, MEDLINE, of the National Library of Medicine (1994–2006). Web citation distributions are investigated based on Web site types, Web page types, URL frequencies, URL depths, URL lengths, and year of article publication. Results show significant differences in the Web citation distributions among the three data sets. However, when the URLs of Web citations with the same hostnames are aggregated, the distributions in the three data sets are consistent with the power law (the Lotka function). 相似文献
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学术信息开放存取模式运行机制与前景探析 总被引：4，自引：0，他引：4
学术信息开放存取模式是一种新的信息交流和出版模式。本文在深入分析它的运行机制的基础上分析了它产生的原因，用历史演进的思想剖析了它的实质，并探讨了它将来的发展前景。 相似文献
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基于Web的ISI三大引文索引数据库引文检索方法 总被引：2，自引：0，他引：2
本文在简述引文索引及其功能的基础上 ,介绍了基于 Web的 ISI三大引文索引数据库 SCI- E、SSCI及 A& HCI引文检索方法 ,并举例说明了此检索方法使用中的若干技巧 ,对专业检索人员和科研人员检索科技文献具有指导意义。 相似文献