共查询到19条相似文献，搜索用时 203 毫秒
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关于网络引文分析研究的几个问题 总被引：2，自引：0，他引：2
网络的出现使网络引文分析成为研究热点，本文就网络引文分析能否替代传统引文分析的问题进行释疑，并论述了网络引文分析的实践、目前存在的问题及其完善方法。 相似文献
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网络引文文献的特性研究 总被引：6，自引：0，他引：6
王恺荣 《现代图书情报技术》2004,20(10):74-76
以5种情报学核心期刊近年来的载文为样本，对网络型引文文献的特性（网络引文的增长态势、域名分布、著录格式及链接功能等）进行了计量研究，为网络引文管理的规范化和科学化提供必要的定量依据。 相似文献
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小议网络文献作为引文 总被引：5，自引：0，他引：5
本文在阐述网络文献和网络引文的基础上，提出网络文献成为引文还存在的问题，由此进一步提出在网络引文的著录上应采取的措施，指出应尽快对这一现象进行研究和规范。 相似文献
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核心期刊评价增加网络引文指标的思考 总被引：4，自引：0，他引：4
东方 《图书馆理论与实践》2004,(6):71-72
以《图书情报工作》近6年来援引的网络引文为例,阐述了网络引文的增长规律和网络引文著录存在的问题及其对评价核心期刊的影响,提出了增加网络引文评价指标的建议。 相似文献
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网络引文研究现状及展望 总被引：4，自引：1，他引：3
首先,通过大量文献调研,对网络引文研究现状作宏观介绍,其次,把网络引文研究内容分为网络引文的使用（是否可以使用、怎样进行使用）和网络引文分析（引文分布分析、可获得性分析、影响与利用分析）两方面进行详细阐述,最后,展望未来网络引文研究的重点。 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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网络的出现使网络引文分析成为研究热点,国内外学者对网络引文的研究却存在很大的差异.国内学者主要关注将网络文献作为学术论文参考文献的一种引文形式.国外学者主要关注网络上文本引文或纸质文献出版物在网络上的被引用.文章通过比较国内外研究内容,探讨了网络引文分析研究现状,最后提出了加强三种类型引文分析理论和方法的整合的建议. 相似文献
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从网络引文的可追溯性角度研究网络信息资源的老化规律.具体分析CSSCI(1998～2009年)的183 986条P(Print)-W(Web)网络引文,发现各年网络引文量呈逻辑增长,篇均引文量也呈逐年增长趋势,其中近一半(48%)的P-W引文不可追溯.在不可追溯的引文类型中,404所占比例最大;通过引入传统文献老化规律模型--负指数增长曲线分析,P-W网络引文的平均可追溯半衰期为7 13年.P-W网络引文可追溯性与其URL域名类型、URL网页类型、URL层数和年代等的关系方面,P-W引文不可追溯分布具有一定的规律性;URL层数与URL字符数之间具有显著线性相关关系. 相似文献
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《Journal of Informetrics》2022,16(4):101338
Knowledge flow between scientific disciplines has commonly been measured based on citation data. Previous studies using citing relationships have mostly considered direct citations but have paid little attention to indirect citations (IDC) to indicate how knowledge diffusion from one discipline to another via one or more intermediaries. In this study, we measured knowledge flow between disciplines from two perspectives: direct citations (DC) and discipline potential energy (DPE), which is proposed to combine both direct and indirect citations. Data were collected from the Web of Science (WoS) database. Findings include: (1) DPE overshadows previous measures by considering not only direct citations but also indirect citations between disciplines which was usually ignored in previous measures, and revealed that the knowledge contribution of some disciplines had been underestimated by previous measures, such as Physics and Engineering. (2) The proportion of IDC contribution is close to that of direct knowledge contribution when the discipline scale is removed, which suggests that it is essential to consider IDC to distinguish the knowledge relationship (net-outflow/inflow) between disciplines. (3) Both measurements show that Biology & Biochemistry has always been the top discipline with the highest net outflow of knowledge, which is inconsistent with the history of science that Mathematics, Physics and Chemistry would be the highest net outflow disciplines. The results show that even considering IDC does not fully reveal the knowledge contribution and academic influence of disciplines. This paper also analyzes the potential reasons for citation bias in revealing the contribution of disciplinary knowledge from a citation perspective. Therefore, caution should be taken in the use of citations as a primary measure of knowledge flow. 相似文献
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B.T. Sampath Kumar K.S. Manoj Kumar 《International Information and Library Review》2012,44(4):202-211
This study investigates the decay and half-life of online citations cited in four open access journals published between 2000 and 2009. A total of 1158 online citations cited in 1086 research articles published in two science and social science journals spanning a period of 10 years (2000–2009) were extracted. Study found that 24.58% (267 out of 1086) of articles had online citations and these articles contained a substantially very less number of online citations (2.98%) compared to previous study results. 30.56% (26% in Science and 52.73% in Social Science) of online citations were not accessible and remaining 69.44% of online citations were still accessible. The ‘HTTP 404 error message-page not found’ was the overwhelming message encountered and represented 67.79% of all HTTP message. Domains associated with .ac and .net had higher successful access rates while .org and .com/.co had lowest successful access rates. The half-life of online citations was computed to be approximately 11.5 years and 9.07 years in Science and Social science journal articles respectively. 相似文献
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B.T. Sampath Kumar K.S. Manoj Kumar 《International Information and Library Review》2013,45(4):202-211
This study investigates the decay and half-life of online citations cited in four open access journals published between 2000 and 2009. A total of 1158 online citations cited in 1086 research articles published in two science and social science journals spanning a period of 10 years (2000–2009) were extracted. Study found that 24.58% (267 out of 1086) of articles had online citations and these articles contained a substantially very less number of online citations (2.98%) compared to previous study results. 30.56% (26% in Science and 52.73% in Social Science) of online citations were not accessible and remaining 69.44% of online citations were still accessible. The ‘HTTP 404 error message-page not found’ was the overwhelming message encountered and represented 67.79% of all HTTP message. Domains associated with .ac and .net had higher successful access rates while .org and .com/.co had lowest successful access rates. The half-life of online citations was computed to be approximately 11.5 years and 9.07 years in Science and Social science journal articles respectively. 相似文献
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Windows NT平台上的数据检索光盘网络系统 总被引：1，自引：0，他引：1
详细介绍Windows平台上的数据检索光盘网络系统的主要硬件功能和主要软件性能,并简要介绍建设光盘网络系统的几点体会。 相似文献
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网络新闻评论系统的模型建构与优化策略 总被引：1，自引：0，他引：1
本文通过分析网易、腾讯和新浪的网络新闻评论系统,探寻当前我国网络新闻评论系统普遍存在的突出问题,并提出进一步优化网络新闻评论系统的结构和功能设置的策略和方案。 相似文献
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本文阐述了未成年入网络行为失范的主要表现及其危害性，指出了它的产生原因，重点探讨了公共图书馆应对未成年入网络行为失范的策略。 相似文献
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网络出版的失范与伦理约束 总被引：2，自引：0，他引：2
网络出版是出版业发展的新动向。在网络出版的发展过程中 ,产生了一些不和谐的“音符”。网络出版伦理因其具有网络出版的法律、政策及技术调控手段所不具备的独特属性 ,能够在规范网络出版活动方面大显身手 相似文献