共查询到20条相似文献，搜索用时 15 毫秒
1.
基于WoS和CSCD的肿瘤类高被引文章分析 总被引：1，自引：1，他引：0
[目的]对WoS和CSCD数据库中1000篇肿瘤类高被引文献的特点进行分析,以期为杂志组稿约稿提供依据。[方法]分别检索2005-2014年间WoS和CSCD数据库中年被引频次前50的肿瘤类文献,分析其第一作者、总被引频次、发表后1~5年内被引频次、文章类型、作者单位、基金情况、学科分布、研究内容和研究方向等,并对其进行统计分析。[结果]WoS数据库中高被引文献的被引频次远高于CSCD数据库[(29218.5±16693.9)次vs. (552.3±308.7)次]。高被引文献中,论著类文章占比重较高(72.8%),且在文章发表后5年内,年被引频次波动不大。流行病学研究、大型临床多中心试验研究、指南类文章以及知名专家述评是被引用的热点文章。[结论]国内外文献学术质量仍存在较大差距。杂志组稿应从流行病类文章、知名专家述评以及多中心临床试验入手,以提高整体被引频次以及学术质量。 相似文献
2.
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
3.
This paper considers the use of the h-index as a measure of a journal’s research quality and contribution. We study a sample of 455 journals in business and management all of which are included in the ISI Web of Science (WoS) and the Association of Business School’s peer review journal ranking list. The h-index is compared with both the traditional impact factors, and with the peer review judgements. We also consider two sources of citation data – the WoS itself and Google Scholar. The conclusions are that the h-index is preferable to the impact factor for a variety of reasons, especially the selective coverage of the impact factor and the fact that it disadvantages journals that publish many papers. Google Scholar is also preferred to WoS as a data source. However, the paper notes that it is not sufficient to use any single metric to properly evaluate research achievements. 相似文献
4.
《Information processing & management》2020,57(5):102267
Merging the citation counts of arXiv-deposited e-prints (arXiv version) with those of their corresponding published journal articles (publisher version) is an important issue in citation analysis. Using examples of arXiv-deposited e-prints, this article adopts a manual approach to investigate the processing methods used by bibliographic repositories such as Google Scholar, Web of Science, Scopus, Astrophysics Data System (ADS), and INSPIRE for the citation merging. Both Google Scholar and ADS consolidate all citations from the two versions into the publisher one, whereas the consolidated citations are accumulated into the arXiv version in the INSPIRE repository. All these methods ignore the categories of the arXiv-deposited versions and the corresponding availability dates. As for Web of Science and Scopus, they count the citations of the two versions separately, which is likely regarding them as two independent articles. Focusing on journal articles that also appeared as arXiv e-prints, we classify them into two categories and identify two public availability dates of articles as the starting point of citation statistics. We present four feasible schemes to consolidate citation counts for the articles with both versions and also propose a universal scheme based on the research output. Furthermore, we investigated 2,662 e-prints in the “Computer Science - Digital Libraries” subject (cs.DL) from 1998 to 2018 in arXiv.org and manually calculated the consolidated citation counts of arXiv-deposited articles with the corresponding citation merging schemes. Furthermore, these citation consolidation methods are applied to the evaluation of articles, authors, and journals. Such empirical testing proves the feasibility of the schemes proposed in this article. 相似文献
5.
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
6.
以引文数据库Web of Science以及Scopus为文献源,采用文献计量学的方法,针对2005年至今的以h指数为研究主题的文献,从文献量及年代分布、文献类型及语种、作者、文献来源、文献被引和主题等方面进行综述性分析,以揭示国际h指数研究的现状。 相似文献
7.
This article reveals different patterns of scholarly communication in the XML research field on the Web and in print journals in terms of author visibility, and challenges the common practice of exclusively using the ISI’s databases to obtain citation counts as scientific performance indicators. Results from this study demonstrate both the importance and the feasibility of the use of multiple citation data sources in citation analysis studies of scholarly communication, and provide evidence for a developing “two tier” scholarly communication system. 相似文献
8.
近十年国外图书情报学专业研究领域可视化分析——基于社会网络分析和战略坐标图 总被引：2，自引：0，他引：2
以Scopus数据库和Web of Science数据共同收录的图书情报学领域的38种期刊近10年所刊载的研究论文为数据源。利用共词聚类分析获得各个研究主题类团。基于关键词及其在文献中的共现情况,构建词共现关键词网络。并利用社会网络分析方法从网络中心性角度分析每个关键词在网络中的地位,以及它们之间的联系,揭示研究主题的结构特征。最后通过二维战略坐标图识别不同主题类团之间的演变趋势。 相似文献
9.
This article describes the results of our analysis of the data from the CiteSeer digital library. First, we examined the data from the point of view of source top-level Internet domains from which the data were collected. Second, we measured country shares in publications indexed by CiteSeer and compared them to those based on mainstream bibliographic data from the Web of Science and Scopus. And third, we concentrated on analyzing publications and their citations aggregated by countries. This way, we generated rankings of the most influential countries in computer science using several non-recursive as well as recursive methods such as citation counts or PageRank. We conclude that even if East Asian countries are underrepresented in CiteSeer, its data may well be used along with other conventional bibliographic databases for comparing the computer science research productivity and performance of countries. 相似文献
10.
An ego-centric citation analysis of the works of Michael O. Rabin based on multiple citation indexes 总被引：2，自引：0，他引：2
The primary goal of this study was to carry out an ego-centric citation and reference analysis of the works of the mathematician and computer scientist, Michael O. Rabin. Until recently only a single citation database was available for such research – the ISI Citation Indexes. In this study we utilized and compared three major sources that provide citation data: the Web of Science, Google Scholar and Citeseer. Most cited works, citation identity, citation image makers and coauthors were identified. The citation image makers acquired through these sources differ considerably. Advantages and shortcomings of each of the tools are discussed in the context of computer science. A major issue in computer science is multiple manifestations of a work, i.e., its publication in several venues (technical reports, proceedings, journals, collections). The implications of multiple manifestations for citation analysis are discussed. 相似文献
11.
12.
国际期刊评价指标的实证分析——基于WOS和Scopus数据库对比视角 总被引：1，自引：0，他引：1
以Web of Science(WOS)数据库JCR中的眼科学期刊(OPHTHALMOLOGY)为研究对象,采用SPSS21.0统计学软件比较基于Scopus数据库的评价指标SNIP、SJR、H指数与JCR收录期刊的IF之间的相关性,从而分析Scopus数据库、WOS数据库评价期刊是否存在一致性,SNIP和IF(JCR)评价眼科学期刊是否有差异性。结果显示,期刊评价指标SJR、SNIP、H指数、IF(JCR)之间显著相关,由此说明Scopus数据库评价期刊是可行的,两种数据库评价期刊一致性较好;在眼科学领域,Scopus数据库中SNIP指标与IF(JCR)存在一定的差异性,经统计学分析显示差异不显著。 相似文献
13.
14.
《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
15.
This paper aims to verify the trends in the scientific research about Radio Frequency Identification (RFID) published in journal papers from 2006 to 2016. RFID is a well-known information technology, which is used in different sectors to track and identify goods and to control and preserve the quality of products and their data. Because many researchers have studied RFID, practitioners are investing their time in developing low-cost and longer-life RFID systems using artificial intelligence, decision-aid tools, and the inclusion of a variety of sensors, questions emerge about its publications. Some different multidisciplinary database (Scopus and Web of Science), mainly based on peer-reviewed journals, were accessed. Therefore, to examine these papers, a sequence of statistical analyses was also studied. We found 17,190 papers, most of which were concentrated in SciVerse Scopus, and the increase paper tax (RGR(i)) decreased between 2006 and 2015, and started increasing between 2015 and 2016. Even though some journals are very famous for publishing information technology subjects, a journal on mechanical and materials concentrated most papers. 相似文献
16.
基于Web of Science数据库,对2008—2018年CPSF-SCI论文产出数量、被引频次、作者机构、学科门类、期刊来源、区域分布等研究分析,利用SPSS21.0进行配对资料Wilcoxon检验,验证相关参数的显著性。研究发现,2008—2018年共发表CPSF-SCI论文59 434篇,高水平科研产出越来越多,高引论文水平略高于全球基准值,CPSF-SCI论文数量与CPSF资助人数在机构、学科门类、区域分布上基本一致,不存在显著性差异。同时,也存在CPSF-SCI论文人均数量少,资助成本高,刊载期刊总体水平不高、学科门类分布不均、区域发展不平衡等问题。 相似文献
17.
18.
基于印刷版与电子版的学术期刊综合评价研究 总被引：13，自引：0，他引：13
学术期刊评价问题受到了理论界和相关人士的普遍关注。现有大多数文献是对印刷版期刊或期刊数据库分别进行评价。本文阐述了对学术期刊进行基于印刷版与电子版评价的原因 ,提出了一个学术期刊综合评价的框架体系 ,并介绍了印刷版期刊、期刊网址和期刊数据库的评价指标 相似文献
19.
从作者引用认同和引证图像中衍生出方法和理论,探讨期刊引用认同和引证图像的评价指标,然后以图书情报学核心期刊中影响因子较接近和较高的3种期刊:《情报理论与实践》、《情报科学》、《情报资料工作》作为实证进行分析说明,采用的数据来源于中国期刊全文库和引文数据库,对其三者的参考文献总数/被引期刊数、单次引证和多次引证、自引、新的期刊扩散因子分析等进行研究,其目的在于对期刊作一个更加详细的多方面描述,反映出期刊参考文献的多样性、集中与分散规律、该刊的开放性以及在本学科领域的扩散能力与渗透能力、影响力等。 相似文献
20.
通过文献计量学的方法,将ISI Web of Science数据平台中的SCI-EXPANDED、SSCI和CPCI-SSH等3个引文数据库在2003—2013年间所收录的技术竞争情报相关研究文献作为分析样本,先进行时空维度的计量分析,然后利用信息可视化分析软件Cite Space绘制国家(或地区)共现、所涉及学科领域和共词网络知识图谱,对技术竞争情报的研究热点及趋势进行确定,并对研究热点与前沿领域进行详细阐述。 相似文献