共查询到20条相似文献，搜索用时 125 毫秒
1.
我国核心期刊开放获取现状分析——基于《中文核心期刊要目总览(2011版)》的实证研究 总被引：1，自引：0，他引：1
文章作者以《中文核心期刊要目总览(2011年版)》收录的1982种期刊为数据采集对象,统计了其中所搜集的1660种有效样本期刊的开放获取现状:截至2012年10月底,共有651种期刊实行开放获取(OA);在实现开放获取(OA)的期刊中,自然科学类期刊的OA比例最高,为72.3％;开放获取的途径主要是期刊网站和学科仓储,同时百度文库和豆丁网也收录了近半数样本论文;自然科学类期刊的OA开放时滞明显短于人文社会科学类期刊;不同学科论文的OA引用优势有较大差异. 相似文献
2.
关于开放获取论文引用优势的研究综述 总被引：2，自引：0，他引：2
3.
开放获取运动给科技期刊的出版模式带来变革.面对前所未有的机遇和危机,国际上的科技期刊积极回应:新兴出版商大量新办开放获取期刊;传统出版商开设OA子刊,化"危"为"机";多数期刊打造混合出版模式,实现转型过渡发展.与此同时,我国科技期刊受到严峻的挑战:科技期刊开放获取发展不成熟,加速科研论文与经费外流;没有遵循国际OA标准,无法实行OA经营;政策制度不成熟,配套设施不匹配.在此背景下,本文提出开放获取环境下我国科技期刊的发展对策:遵循国际OA出版规范,创立中国特色的期刊OA模式;发展国内英文版期刊,实行国内外APC同质同价;建立集中开放获取平台,推进期刊集约化发展;确认预印本首发权,无缝对接科技期刊的优先出版;强化OA出版质量监控,培育市场化出版生态. 相似文献
4.
在讨论OA论文影响的形成过程、影响因素和形成机制的基础上,本研究以中美学者发表在PLoS平台的7种OA期刊上的论文为样本,以PLoS Article-Level Metrics为工具,统计五大类指标(浏览下载量、引用量、保存量、讨论量、推荐量)的24个分指标数据,从指标相关性、不同年份、不同类型论文、不同分指标等方面,系统比较中美OA论文影响的异同。研究发现:①中美OA论文各指标间的相关性类似,被引量与浏览下载量有较高相关性,与讨论量相关性最弱。②总体上美国论文各指标值高于中国论文,讨论量、推荐量和浏览下载量相距较大,保存量则相差不大;只通过被引量衡量,低估了中美OA论文影响存在的差距。③中国论文中,中国作者为辅的论文影响指标值相对较高,中国独著的论文表现最差;美国论文中,美国作者为主的论文在多个指标值中最高。中美论文在不同分指标间也存在差异。图6。表6。参考文献50。 相似文献
5.
社会科学开放访问期刊及其学术影响力研究 总被引：16，自引：1，他引：15
"开放访问期刊(OpenAccessJournals)"是Internet上免费的、可获取全文的、高质量的学术期刊的通称。文章对Internet上社会科学开放访问期刊进行了概述,收集了其中被SSCI数据库收录的开放访问期刊的网址、学科、刊号、出版频率及创刊年份等信息,利用SSCI及TCR数据库检索、统计了它们近年被引用情况和各项影响力指标(包括:被引频次、影响因子、即年指数、被引半衰期等),并统计各期刊影响因子在相应学科中的排名,对社会科学开放访问期刊的影响力水平进行讨论研究。 相似文献
6.
7.
8.
为了探讨开放存取模式下论文的质量和影响力,本文随机抽取2004年生物学领域影响因子相近的完全OA期刊与非OA期刊各5种,排除评论性和综述性的文章,从论文的影响力、论文间质量的差异性、作者合作度3个方面,采用平均被引频次、被引频次的极差、平均作者数、论文合著率4个指标进行了统计分析,进而研究开放存取模式下论文的学术水平和影响力。本文的研究结果显示,OA论文已经达到甚至超过非OA论文的质量和影响力。 相似文献
9.
10.
开放存取期刊(OA期刊)是指那些无需本人或其所属机构支付使用费用,允许读者进行阅读、下载、复制、分发、打印、检索或链接到全文的期刊。目前,大部分的OA期刊集中在科学技术发达的国家。我国出版的OA期刊有16种。OA期刊涉及88个学科,其中医学类期刊占首位。OA期刊涉及语言25种,最多的是英语。在OA期刊中最多的为季刊。OA期刊可通过在网站上正式搜寻和目的浏览的方式来获取。促进OA期刊利用的对策有:加强OA期刊资源的搜集,建立链接专栏;加强OA期刊在图书馆OPAC中的揭示;加强OA期刊与本馆资源的整合。表5。参考文献4。 相似文献
11.
Using data from Web of Science, this research investigates how physical science researchers funded by the Canadian Institutes of Health Research complied with its open access policy, and compares the citation counts of articles published through gold and green models.It was found that, for articles published between 2008 and 2015, 9% were available through gold open access routes and 13% were available through green routes; most were not openly accessible. Citation rates were comparable for green open access and non-open access articles, but citation rates for gold open access articles were lower. After controlling for publication year, citation rates of gold, green, and non-open access articles were comparable. Among gold open access articles, citation rates were highest for open access journals with article processing charges, but after controlling for publication year, articles published in hybrid journals, followed by those in open access journals with article processing charges, achieved the highest citation rates. Articles published in free open access journals had the lowest citation rates. The results suggest that green open access is the most economical approach to comply with open access policies, and that it provides researchers with at least as much research impact as gold open access. 相似文献
12.
《The Journal of Academic Librarianship》2023,49(4):102734
This research provides insight into the complex relationship between open access, funding, and citation advantage. It presents an analysis of research articles and their citations in the Scopus database across 40 subject categories. The sample includes 12 categories from Health Sciences, 7 from Life Sciences, 10 from Physical Sciences & Engineering, and 11 from Social Sciences & Humanities. Specifically, the analysis focuses on articles published in 2016 and the citations they received from 2016 to 2020. Our findings show that open access articles published in hybrid journals receive considerably more citations than those published in gold open access journals. Articles under the hybrid gold modality are cited on average twice as much as those in the gold modality, regardless of funding. Furthermore, we found that funded articles generally obtain 50 % more citations than unfunded ones within the same publication modality. Open access repositories significantly increase citations, particularly for articles without funding. Thus, articles in open access repositories receive 50 % more citations than paywalled ones. 相似文献
13.
开放存取对期刊影响力绩效研究综述 总被引：2，自引：0，他引：2
文章归纳了国内外主要的OA绩效研究方法,并将它们分为三类：对某个期刊群中OA期刊和非OA期刊影响因子的比较、对某个领域大样本OA论文与非OA论文被引频次的统计比较,以及对某个混合OA期刊中OA论文和非OA论文影响因子平均值的比较,并介绍了其中五个代表性研究的方法和结论。这些研究成果表明,OA对提高期刊影响力有着积极的立竿见影的作用。针对未来需要,文章提出了OA论文比例演变、文献引文中OA文献比例演变、搜索引擎对OA绩效影响的研究方案。该文为《数字图书馆论坛》2．009年第11期本期话题“Open Access”的文章之一。 相似文献
14.
《The Journal of Academic Librarianship》2022,48(1):102484
Although there are at least six dimensions of journal quality, Beall's List identifies predatory Open Access journals based almost entirely on their adherence to procedural norms. The journals identified as predatory by one standard may be regarded as legitimate by other standards. This study examines the scholarly impact of the 58 accounting journals on Beall's List, calculating citations per article and estimating CiteScore percentile using Google Scholar data for more than 13,000 articles published from 2015 through 2018. Most Beall's List accounting journals have only modest citation impact, with an average estimated CiteScore in the 11th percentile among Scopus accounting journals. Some have a substantially greater impact, however. Six journals have estimated CiteScores at or above the 25th percentile, and two have scores at or above the 30th percentile. Moreover, there is considerable variation in citation impact among the articles within each journal, and high-impact articles (cited up to several hundred times) have appeared even in some of the Beall's List accounting journals with low citation rates. Further research is needed to determine how well the citing journals are integrated into the disciplinary citation network—whether the citing journals are themselves reputable or not. 相似文献
15.
Sally Morris 《Learned Publishing》2003,16(3):171-176
There is increasing pressure from academia to make the results of publicly funded research freely available to all. Preprint archives have grown up in some disciplines, and institutional archives are now being developed. While openly accessible preprints seem to have damaged publishers less than was originally feared, the final published versions of articles – when combined with sophisticated retrieval software – may turn out to be a different matter. Publishers have already done much to make their content more accessible through bundling, consortia licensing, access for less‐developed countries, more liberal customer and author agreements, and collective licensing. Some are experimenting with open access journals, although this may not work in all disciplines. It seems clear, however, that there are elements of value in journals themselves, and in the functions performed by journal publishers, which should survive. 相似文献
16.
17.
《Journal of Informetrics》2007,1(3):239-248
The last few years have seen the emergence of several open access options in scholarly communication which can broadly be grouped into two areas referred to as ‘gold’ and ‘green’ open access (OA). In this article we review the literature examining the relationship between OA status and citation counts of scholarly articles. Early studies showed a correlation between the free online availability or OA status of articles and higher citation counts, and implied causality without due consideration of potential confounding factors. More recent investigations have dissected the nature of the relationship between article OA status and citations. Three non-exclusive postulates have been proposed to account for the observed citation differences between OA and non-OA articles: an open access postulate, a selection bias postulate, and an early view postulate. The most rigorous study to date (in condensed matter physics) showed that, after controlling for the early view postulate, the remaining difference in citation counts between OA and non-OA articles is explained by the selection bias postulate. No evidence was found to support the OA postulate per se; i.e. article OA status alone has little or no effect on citations. Further studies using a similarly rigorous approach are required to determine the generality of this finding. 相似文献
18.
Pierre BARUCH 《Learned Publishing》2007,20(4):267-282
This article presents an overview of open access publishing and open access archiving in France. In natural sciences, most articles are published in international journals; authors must therefore comply with the policies of their publishers, irrespective of their nationality. For humanities and social sciences, where publication tends to be distributed among many small journals, portals have been created to provide electronic publishing, with varied access policies. Open archives repositories have been in existence in France since 2001; from 2006, a proactive policy led the main research agencies and universities to coordinate their actions towards a common archiving platform, HAL (Hyper Articles on Line), operated by CNRS (Centre National pour la Recherche Scientifique), with individual portals, either thematic or institutional. HAL stores now the majority of open access records – presently some 10–15% of French output – and is growing almost exponentially. 相似文献
19.
《The Journal of Academic Librarianship》2022,48(6):102618
PurposeThis paper aims to examine whether Altmetric data can be used as an indicator for identifying predatory journals.Design/methodology/approachThis is an applied study which uses citation and Altmetrics methods. The study selected 21 predatory journals from the Beall's list and Kscien's list, as well as 18 non-predatory open access journals from the DOAJ's list, in the field of Library and Information Science. The Altmetric score for articles published in these journals was obtained from the Altmetric Explorer, a service provided by Altmetric.com. Web of Science was used to search for citation data of articles published in these journals.FindingsThe predatory journals almost have no presence in social media, with poor Altmetric score. In contrast, non-predatory open access journals have a high presence rate and Altmetric score. There is a significant positive correlation between the number of articles cited and the number of articles having Altmetric score among non-predatory open-access journals, but not among predatory journals. Poor Altmetric score may be viewed as a potential characteristic of predatory journals, but other indicators would also need to be considered to determine whether a journal is predatory.Originality/valueDistinct from the traditional research methods, this study combined citation analysis and Altmetrics analysis. By comparing the characteristics of predatory journals and non-predatory open access journals, the findings contribute to the identification of predatory journals. 相似文献
20.
中国大陆开放存取期刊实践现状研究 总被引：2，自引：0，他引：2
国际上开放存取期刊的发展取得了巨大成就,我国学者关注开放存取期刊的研究也超过5年,但我国大陆地区的开放存取期刊建设现状却很落后。据国际开放存取期刊收录目录DOAJ数据统计,到目前为止我国大陆地区仅注册33种。文章从开放存取期刊建设现状入手,分析其建设落后的原因并提出建设建议以加快我国大陆地区开放存取期刊的建设步伐。 相似文献