共查询到19条相似文献，搜索用时 250 毫秒
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国内档案学期刊网络引文的类型和相关特征分析——以2002-2011年《档案学通讯》、《档案学研究》为例 总被引：1，自引：0，他引：1
通过对我国2002-2011年间《档案学通讯》、《档案学研究》网络引文的实证分析,得出网络信息资源在我国档案学研究中的利用程度仍将继续提高、静态类网络引文的可访问性高于动态类网络引文、我国档案学者对网络信息的利用呈现出一定的选择性、分布在.edu域名的网络引文的可访问性相对较差等相关结论,并印证了对网络信息资源进行存档以及建立网络档案学研究的紧迫性和必要性。 相似文献
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社会网络、引文网络和链接网络之比较 总被引：4，自引：0，他引：4
在图书情报学领域对文献信息资源和网络信息资源进行研究时,我们经常会遇到社会网络、引文网络和链接网络.它们有明显的区别又有紧密的联系.了解这三类网络的异同对于进行超链接网络分析、网络引文分析、链接分析等是很必要的.因此,我们从网络本身的结构特点及对三类网络进行测度的指标两个角度对社会网络、引文网络和链接网络进行比较. 相似文献
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《图书馆理论与实践》1998年—2008年网络引文计量分析 总被引：2，自引：0，他引：2
鞠兰萍 《图书馆理论与实践》2009,(7)
通过对1998年-2008年<图书馆理论与实践>网络引文的数量变化、引文源、作者情况等方面进行统计分析,探讨该刊网络引文的发展规律,为研究图书情报界对网络学术信息的利用情况,提高网络信息资源的开发和利用提供第一手资料. 相似文献
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基于计量方法的学科信息门户资源采选机制 总被引：2，自引：0，他引：2
学科信息门户建设中的资源采选是保证服务质量的首要环节,针对目前资源采选中定性标准和方法的不足,该文提出建立基于计量方法的学科信息门户采选机制,拟从网络计量、网络引文分析等定量方法的角度完善学科信息门户的资源采选机制。 相似文献
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基于网络引文的网上学术资源利用规律研究——以图书馆学与情报学为例 总被引：3，自引：0，他引：3
互联网已成为科学研究获取、交流信息的重要渠道与载体.本文以CSSCI中图书馆学与情报学两学科2005～2007年的论文为样本,从网络引文的角度分析网上学术资源利用分布情况.统计并对比分析两学科网络学术资源利用的数量与类型,从网络引文网址的网页级、服务器级、网站级进行频次分析,并用SPSS进行回归拟合.发现网络学术信息已得到普遍使用,对其利用具有一定的选择性与规律性;得出了网络信息资源利用呈现的聚散分布结构,及两学科利用的系列高频次网址;表明网络引文频次分布与幂、平方、三次方函数模型都有较好的拟合度,其中与三次方模型十分吻合. 相似文献
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网络环境下期刊引文的类型与变化分析 总被引：1，自引：0，他引：1
学术期刊论文的引文记录和反映了作者选择与利用文献信息的某些规律。在网络环境下,引文是否经历了一种因主观选择而带来的变化?从引文类型、最大引文年限、衰减系数等方面,对图书情报领域4种代表性期刊1998-2007年的60371条引文研究表明:网络环境下引文的类型发行了变化,作者倾向于选择容易获取的网络资源,而选择较新资源的趋势并不明显。 相似文献
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基于Web of Science（WoS）数据库,利用科学知识图谱工具CiteSpace、HistCite构造国外政府信息资源研究的主题、研究趋势与热点等网络,并借鉴网络科学理论及Gephi工具,对国外政府信息资源研究网络的小世界、无标度等特点进行复杂网络分析,期望有助于相关领域研究者从复杂网络的视角,探索和把握政府信息资源领域的研究脉络,并探讨一种从主题、作者、引文关系等多角度和层面进行数据分析,从而快速定位某研究领域核心知识网络的方法。 相似文献
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Mike Thelwall 《Journal of Informetrics》2018,12(2):430-435
Dimensions is a partly free scholarly database launched by Digital Science in January 2018. Dimensions includes journal articles and citation counts, making it a potential new source of impact data. This article explores the value of Dimensions from an impact assessment perspective with an examination of Food Science research 2008–2018 and a random sample of 10,000 Scopus articles from 2012. The results include high correlations between citation counts from Scopus and Dimensions (0.96 by narrow field in 2012) as well as similar average counts. Almost all Scopus articles with DOIs were found in Dimensions (97% in 2012). Thus, the scholarly database component of Dimensions seems to be a plausible alternative to Scopus and the Web of Science for general citation analyses and for citation data in support of some types of research evaluations. 相似文献
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基于超链分析的Web资源自动发现技术 总被引：2，自引：0，他引：2
传统的Web资源自动发现是基于Web页面内容实现的。本文试图从超链分析的角度探讨Web资源的自动发现技术。超链分析技术起源于社会网络分析和科学引文分析理论,它只分析页面之间的关系,而不关心页面本身的属性。通过试验证明,单纯使用超链,根据用户提供的网页实例,我们能够自动发现与学科资源相关的网站。该技术可以有效的减少网络爬行器的无谓爬行,提高采集效率,减轻网络负担,在学科资源建设中起了重要的作用。 相似文献
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Janice E. Cox 《资料收集管理》2013,38(3):219-234
This study, conducted at the Indiana University School of Dentistry Library using citation analysis, examined graduate dental student theses citations to determine the nature of materials cited, journal ownership, journal citation frequency, and citation age distribution. The results were compared to other scientific discipline citation analyses. Study results indicated that for the period studied, masters dental students, like medical and science students, cited recently published scholarly dental journal literature. The majority of the journals cited were owned by Indiana University system libraries. Areas for further research include faculty resource usage, e-journal impact, and interdisciplinary resource use. 相似文献
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Using 17 open-access journals published without interruption between 2000 and 2004 in the field of library and information science, this study compares the pattern of cited/citing hyperlinked references of Web-based scholarly electronic articles under various citation ranges in terms of language, file format, source and top-level domain. While the patterns of cited references were manually examined by counting the live hyperlinked-cited references, the patterns of citing references were examined by using the cited by tag in Google Scholar. The analysis indicates that although language, top-level domain, and file format of citations did not differ significantly for articles under different citation ranges, sources of citation differed significantly for articles in different citation ranges. Articles with fewer citations mostly cite less-scholarly sources such as Web pages, whereas articles with a higher number of citations mostly cite scholarly sources such as journal articles, etc. The findings suggest that 8 out of 17 OA journals in LIS have significant research impact in the scholarly communication process. 相似文献
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数字科研时代的引文分析-基于被引频次分析的实证研究 总被引：3，自引：0，他引：3
从期刊被引频次的角度出发,采取实证研究的方法,选择国际权威的引文数据库Web of Science和著名的搜索引擎GoogleScholar,以《美国信息科学和技术学会杂志》为文献源进行相关分析,得出在数字科研时代引文分析有必要采取多个引文分析工具,使得引文分析能跟上时代发展步伐的结论。 相似文献
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《图书情报工作》1999-2002年载文的网络引文分析 总被引：5，自引：0，他引：5
对《图书情报工作》1999-2002年的引文数据和期刊、图书、网络、报纸及其他类型引文源的数量、分布比例等进行统计和分析，指出除期刊和图书外，网络已成为第三大信息源，且其所占比例还在逐年递增。 相似文献
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Elaine M. Lasda Bergman 《The Journal of Academic Librarianship》2012,38(6):370-379
Past studies of citation coverage of Web of Science, Scopus, and Google Scholar do not demonstrate a consistent pattern that can be applied to the interdisciplinary mix of resources used in social work research. To determine the utility of these tools to social work researchers, an analysis of citing references to well-known social work journals was conducted. Web of Science had the fewest citing references and almost no variety in source format. Scopus provided higher citation counts, but the pattern of coverage was similar to Web of Science. Google Scholar provided substantially more citing references, but only a relatively small percentage of them were unique scholarly journal articles.The patterns of database coverage were replicated when the citations were broken out for each journal separately. The results of this analysis demonstrate the need to determine what resources constitute scholarly research and reflect the need for future researchers to consider the merits of each database before undertaking their research. This study will be of interest to scholars in library and information science as well as social work, as it facilitates a greater understanding of the strengths and limitations of each database and brings to light important considerations for conducting future research. 相似文献
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The Web impact of open access social science research 总被引：1，自引：0，他引：1
For a long time, Institute for Scientific Information (ISI) journal citations have been widely used for research performance monitoring of the sciences. For the social sciences, however, the Social Sciences Citation Index® (SSCI®) can sometimes be insufficient. Broader types of publications (e.g., books and non-ISI journals) and informal scholarly indicators may also be needed. This article investigates whether the Web can help to fill this gap. The authors analyzed 1530 citations from Google™ to 492 research articles from 44 open access social science journals. The articles were published in 2001 in the fields of education, psychology, sociology, and economics. About 19% of the Web citations represented formal impact equivalent to journal citations, and 11% were more informal indicators of impact. The average was about 3 formal and 2 informal impact citations per article. Although the proportions of formal and informal online impact were similar in sociology, psychology, and education, economics showed six times more formal impact than informal impact. The results suggest that new types of citation information and informal scholarly indictors could be extracted from the Web for the social sciences. Since these form only a small proportion of the Web citations, however, Web citation counts should first be processed to remove irrelevant citations. This can be a time-consuming process unless automated. 相似文献
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Robin Camille Davis 《Behavioral & Social Sciences Librarian》2013,32(3):128-134
ABSTRACTCiting webpages has been a common practice in scholarly publications for nearly two decades as the Web evolved into a major information source. But over the years, more and more bibliographies have suffered from “reference rot”: Cited URLs are broken links or point to a page that no longer contains the content the author originally cited. In this column, I look at several studies showing how reference rot has affected different academic disciplines. I also examine citation styles’ approach to citing Web sources. I then turn to emerging Web citation practices: Perma, a “freemium” Web archiving service specifically for citation; and the Internet Archive, the largest Web archive. 相似文献