共查询到20条相似文献，搜索用时 31 毫秒
1.
Multidisciplinary cooperation is now common in research since social issues inevitably involve multiple disciplines. In research articles, reference information, especially citation content, is an important representation of communication among different disciplines. Analyzing the distribution characteristics of references from different disciplines in research articles is basic to detecting the sources of referred information and identifying contributions of different disciplines. This work takes articles in PLoS as the data and characterizes the references from different disciplines based on Citation Content Analysis (CCA). First, we download 210,334 full-text articles from PLoS and collect the information of the in-text citations. Then, we identify the discipline of each reference in these academic articles. To characterize the distribution of these references, we analyze three characteristics, namely, the number of citations, the average cited intensity and the average citation length. Finally, we conclude that the distributions of references from different disciplines are significantly different. Although most references come from Natural Science, Humanities and Social Sciences play important roles in the Introduction and Background sections of the articles. Basic disciplines, such as Mathematics, mainly provide research methods in the articles in PLoS. Citations mentioned in the Results and Discussion sections of articles are mainly in-discipline citations, such as citations from Nursing and Medicine in PLoS. 相似文献
2.
《Journal of Informetrics》2019,13(2):738-750
An aspect of citation behavior, which has received longstanding attention in research, is how articles’ received citations evolve as time passes since their publication (i.e., citation ageing). Citation ageing has been studied mainly by the formulation and fit of mathematical models of diverse complexity. Commonly, these models restrict the shape of citation ageing functions and explicitly take into account factors known to influence citation ageing. An alternative—and less studied—approach is to estimate citation ageing functions using data-driven strategies. However, research following the latter approach has not been consistent in taking into account those factors known to influence citation ageing. In this article, we propose a model-free approach for estimating citation ageing functions which combines quantile regression with a non-parametric specification able to capture citation inflation. The proposed strategy allows taking into account field of research effects, impact level effects, citation inflation effects and skewness in the distribution of cites effects. To test our methodology, we collected a large dataset consisting of more than five million citations to 59,707 research articles spanning 12 dissimilar fields of research and, with this data in hand, tested the proposed strategy. 相似文献
3.
Chuanfu Chen Ping WangAuthor VitaeYaqi LiuAuthor Vitae Gang WuAuthor VitaePei WangAuthor Vitae 《Government Information Quarterly》2013
The purpose of this research is to investigate the current state and trend of government website information cited by social science and humanities (SS&H) journal articles in China. The Chinese Social Science Citation Index (CSSCI) was used as the benchmark and the Social Science Citation Index (SSCI) journals as the reference samples. It analyzed 204,019 web citations (N = 5,063,237) found in 925,506 articles that were published in CSSCI journals during the 1998–2009 period. The findings unveil that web citations accounted for only 4.03% of the total number of citations (N = 5,063,237), and that citations of Chinese government websites constituted 6.6% of the total number of web citations (N = 204,019). The study disclosed detailed information regarding citations derived from ministries and commissions directly under the State Council websites (N = 69), government online media (N = 7), government website citation subjects (N = 21), and various types of government website information (N = 5). Although government website information has limited influence on SS&H, their impact is currently growing rapidly. In comparison with international research community, influence of government web information on Chinese social science is higher, while its influence on humanities is lower. Essentially, Chinese scholars put emphasis on citing information from authoritative central government websites or highly visible state-owned media information as supporting evidences in their articles. In general, the citation of information from Chinese government website tends to hot social issues of society. Finally, it is necessary to promote the visibility of local government websites, to develop policies and guidelines to encourage the disclosure and the diversity of data, so that there will be more citation balances between social and technological topics. 相似文献
4.
《资料收集管理》2013,38(1-2):81-100
The citation analysis literature of the last twenty years is selectively reviewed for papers dealing with citation accuracy, citer motivation and the relationship between citation frequency and library use of materials. Although this relationship is rather complex, the two activity measures are moderately correlated. Citation of an item should promote its use and vice versa. There are some factors, however, which inhibit a very high correlation. Faculty who cite use nonlibrary as well as library materials, and they tend to use scholarly journals which often do not circulate (circulation being one measure of library use). Citations are not simply countable data points; some are more important than others, or differ in purpose. Further, there is a subliterature detailing the degree of inaccuracy among citations. Collectively, these variables tend to dilute the correlation between use of library materials and citation frequency. These limitations notwithstanding, citations represent an auditable trail of scholarship, and citation analysis remains a useful tool for evaluation of library collections and subject literatures. 相似文献
5.
Objective:This study compares two maps of biomedical sciences using Medical Subject Headings (MeSH) term co-assignments versus MeSH terms of citing/cited articles and reveals similarities and differences between the two approaches.Methods:MeSH terms assigned to 397,475 journal articles published in 2015, as well as their 4,632,992 cited references, were retrieved from Web of Science and MEDLINE databases, respectively, which formed over 7 million MeSH co-assignments and nearly 18 million direct citation pairs. We generated six network visualizations of biomedical science at three levels using Gephi software based on these MeSH co-assignments and citation pairs.Results:The MeSH co-assignment map contained more nodes and edges, as MeSH co-assignments cover all medical topics discussed in articles. By contrast, the MeSH citation map contained fewer but larger nodes and wider edges, as citation links indicate connections to two similar medical topics.Conclusion:These two types of maps emphasize different aspects of biomedical sciences, with MeSH co-assignment maps focusing on the relationship between topics in different categories and MeSH direct citation maps providing insights into relationships between topics in the same or similar category. 相似文献
6.
《Library Collections, Acquisitions, and Technical Services》2004,28(2):180-195
This study examines how the social sciences' debate between qualitative and quantitative methods is reflected in the citation patterns of sociology journal articles. Citation analysis revealed that quantitative articles were more likely to cite journal articles than monographs, while qualitative articles were more likely to cite monographs than journals. Quantitative articles cited other articles from their own quantitative-dominated journals but virtually excluded citations to articles from qualitative journals, while qualitative articles cited articles from the quantitative-dominated journals as well as their own qualitative-specialized journals. Discussion and conclusions include this study's implications for library collection development. 相似文献
7.
M L Fang 《Bulletin of the Medical Library Association》1989,77(2):205-211
The purpose of this study was to identify objectively a hierarchical ranking of journals for health sciences librarians with faculty status. Such a guideline can indicate a journal's value for promotion and tenure consideration. Lists of recent research articles (1982-1986) in health sciences librarianship, and articles written by health sciences librarians, were compiled by searching Social SCISEARCH and MEDLINE. The journals publishing those articles are presented. Results show BMLA as the most prominent journal in the field. Therefore, citations from articles in BMLA from 1982 to 1986 were chosen as a sample for citation analysis. Citation analysis was employed to identify the most frequently cited journals. Some characteristics of the citations in BMLA are also discussed. The ranking of journals based on citation frequency, as a result, was identified. 相似文献
8.
This study shows how a journal's influence can be calculated by using citations obtained from Google Scholar and other methods even though the journal is not covered by any citation databases. Influence is measured in terms of foreign contributions, ‘equivalent’ immediacy scores of recent articles, and the calculation of citations and ‘equivalent’ impact factor. A total of 580 articles published in the Medical Journal of Malaysia (MJM) between 2004 and 2008 served as the sample. Very few foreign authors contributed to MJM (12.5%), implying its low regional acceptance as a channel for research communication. Immediacy scores for each year indicate citations were received by recently published articles. A total of 1,164 citations were received by 446 of the 580 articles and the main citing sources were journals (1,083) with reasonable h index and impact factor. Yearly impact scores ranged between 0.367 and 0.616. Higher impact factor scores were obtained by older articles. 相似文献
9.
Bibliography of Bioethics and Index Medicus: comparison of coverage, publication delay, and ease of recall for journal articles on bioethics 总被引：1，自引：0，他引：1
S S Marsh 《Bulletin of the Medical Library Association》1987,75(3):248-252
Citations selected from the bibliographies of recent texts, a specialized subject bibliography, and review articles were checked in both Cumulated Index Medicus (IM) and the Bibliography of Bioethics (BB) to compare coverage, publication delay, probable causes of indexing and retrieval failure, and the ease with which relevant citations were retrieved. The study also attempted to determine whether BB included appropriate articles from the MEDLINE database in a timely and systematic manner. While 98% of the IM citations appeared within a year of publication, 79% of the BB citations appeared two to three years after their publication dates. The average citation appeared twice as frequently in IM as in BB. 相似文献
10.
Citation Behavior of Advanced Undergraduate Students in the Social Sciences: A Mixed-Method Approach
Ilka Datig 《Behavioral & Social Sciences Librarian》2013,32(2):64-80
ABSTRACTCitation analysis is a popular research method in library science, often used to evaluate collections and instructional services. There are multiple advantages to combining citation analysis with qualitative research methods. This article describes a study in which Capstone projects by graduating undergraduate students in the social sciences were examined using both citation analysis and focus groups. The goal of this research was to gain a greater understanding of the types of sources used by advanced undergraduates in the social sciences, the library-provided availability of those sources, and a sense of how these students find, evaluate, and select sources for their Capstone projects. Notable findings include the heavy reliance of students on journal articles and the large influence of professors and other mentors on students' citation behavior. 相似文献
11.
在重大突发公共卫生事件的背景下,科技论文的临床应用价值被提到前所未有的重要位置。但如何评价这种类型的影响力以及有哪些有效指标仍需要深入挖掘与探索。引文桂冠奖是基于被引频次的诺贝尔生理学或医学奖的预测方法,而未被其预测却最终获得诺贝尔奖的原因可能是传统被引指标无法探测到论文的潜在临床影响力。本文引入美国NIH (National Institutes of Health)提出的论文临床转化潜力近似值指标（approximate potential to translate scores,APT）,选择诺贝尔生理学或医学奖得主的论文集为样本,比较被引文桂冠奖预测和未被预测两组作者论文集的总被引次数、加权RCR (relative citation ratio)、被临床论文引用次数、APT均值、Human均值、Animal均值、Mol/Cell (Molecular/Cellular)均值这7项指标,以及转化力三角形模型的差异与指标间的相关性。被预测获奖和未被预测获奖两组论文的总被引次数、加权RCR、Mol/Cell均值有显著差异,未被预测组的Human均值与Animal均值及中位数均高于被... 相似文献
12.
Sarah Jane Brown Caitlin J. Bakker Nicole R. Theis-Mahon 《Journal of the Medical Library Association》2022,110(1):47
Objective:Systematic reviews and other evidence syntheses, the pinnacle of the evidence pyramid, embody comprehensiveness and rigor; however, retracted data are being incorporated into these publications. This study examines the use of retracted publications in the field of pharmacy, describes characteristics of retracted publications cited by systematic reviews, and discusses factors associated with citation likelihood.Methods:Using data from Retraction Watch, we identified retracted publications in the pharmacy field. We identified all articles citing these retracted publications in Web of Science and Scopus and limited results to systematic reviews. We classified the retraction reason, determined whether the citation occurred before or after retraction, and analyzed factors associated with the likelihood of systematic reviews citing a retracted publication.Results:Of 1,396 retracted publications, 283 were cited 1,096 times in systematic reviews. Most (65.0%) (712/1096) citations occurred before retraction. Citations were most often to items retracted due to data falsification or manipulation (39.2%), followed by items retracted due to ethical misconduct including plagiarism (30.4%), or concerns about or errors in data or methods (26.2%). Compared to those not cited in systematic reviews, cited items were significantly more likely to be retracted due to data falsification and manipulation, were published in high impact factor journals, and had longer delays between publication and retraction.Conclusions:Further analysis of systematic reviews citing retracted publications is needed to determine the impact of flawed data. Librarians understand the nuances involved and can advocate for greater transparency around the retraction process and increase awareness of challenges posed by retractions. 相似文献
13.
J M Budd M Sievert T R Schultz C Scoville 《Bulletin of the Medical Library Association》1999,87(4):437-443
At times, there are reasons for authors to make a formal statement of retraction of work they publish in biomedical journals. This study examines 235 retracted articles and looks at the reasons for these retractions and citations to the articles subsequent to retraction. The primary reasons for retraction are error of various kinds (such as problems with method or sample, including contamination of samples) and misconduct. The 235 articles are cited a total of 2,034 times after retraction. This set of citations can be divided into two groups: citations that appear in journals included in the Abridged Index Medicus and those that appear in other journals included in MEDLINE. While most of the citations in these two groups of journals can be categorized as "implicitly positive," 275 make explicitly positive mention of retracted articles. The implications for continued citation for biomedical research and clinical practice are discussed. 相似文献
14.
引文分析是指采用各种数理统计和逻辑方法对文献的引用频率、模式和图像进行计量研究。该文综述2009年以来国外在引文分析的基础理论、研究方法、研究前沿探测应用、引文指标四个方面的研究进展。 相似文献
15.
Cynthia Churchwell 《Journal of Business & Finance Librarianship》2013,18(2):154-156
A citation analysis study was conducted on faculty publications from Business School at Institution. Citations were analyzed by format of materials, library availability, journal concentration by department and the citation age of the journal articles. This study was undertaken in an effort to guide local collection development knowledge, compare how departments in the business school used different resources, and illustrate trends in business faculty citations as compared to similar studies. The study was also conducted in order to enable business librarians to be able to understand, anticipate, and respond to faculty research needs in the business school. 相似文献
16.
《资料收集管理》2013,38(1-2):77-95
The impact of monographs in a vertebrate zoology collection on the scientific literature was assessed using a randomly selected sample (52 monographs), Science Citation Index and a statistical package. Characterstics of the monographs considered were: copyright date, circulation, citation frequency and subdiscipline (ichthyology, herpetology, ornithology, mammalogy). Citing references were dispersed among journals in a wide array of disciplines. A few monographs proved to be very highly cited (one being cited nearly 600 times), and so generated the majority of the database of 2,971 citations. The ichthyology monographs generated the broadest subject dispersion among citing references. The herpetology collection is less active than are the others in terms of circulation and current citation frequency. The sample has been generating an ever increasing share of the citations in the Science Citation Index. A method that applies citation analysis to the evaluation of monograph collections is outlined. 相似文献
17.
Contributing factors to long‐term citation count in marine and freshwater biology articles 
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下载免费PDF全文 Researchers have investigated factors thought to affect the total number of citations in various academic disciplines, and some general trends have emerged. However, there are still limited data for many fields, including aquatic sciences. Using papers published in 2003–2005 (n = 785), we investigated marine and freshwater biology articles to identify factors that may contribute to the probability of citation and for cumulative citation counts over 10 years. We found no relationships with probability of citation; however, we found evidence that for those that were cited at least once, cumulative citations were related to several factors. Articles cited by books received more citations than those never cited by books, which we hypothesized to be indicative of the impact an article may have in the field. We also found that articles first cited within 2 years of publication received more cumulative citations than those first cited after 2 years. We found no evidence that self‐citation (as the first citation) had a significant effect on total citations. Our findings were compared with previous studies in other disciplines, and it was found that aquatic science citation patterns are comparable to fields in science and technology but less so to humanities and social sciences. 相似文献
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Teresa U. Berry Steven D. Milewski Manda C. Sexton Allison L. Sharp 《Public Services Quarterly》2020,16(2):71-82
AbstractCitation management programs are tools used to organize references and to create citations and bibliographies. Libraries are often the central point for providing training and support in using these tools. To determine how we could improve our support and training services, we surveyed users to determine what software in being used, why they chose that particular program, what features are important, and how they use citation management programs to collaborate. Results indicate that users chose a particular program because it was freely available or recommended to them by others and that they thought that importing references and creating citations were important features. We also found a majority of respondents used citation management programs to collaborate and turned to the library for training and support. 相似文献
20.
参考文献引用分类标注与科技期刊和论文的评价 总被引：6，自引：0，他引：6
为了规范参考文献的引用,减小引文问题对科技期刊和论文评价所造成的影响,使得以引文为基础的各种分析方法在科技期刊和论文的评价中更加合理、更加科学,提出了参考文献引用分类标注的概念.依据被引文献对论文作用的不同和引用意义的差别,将论文所引用参考文献分为正相关性引用类、负相关性引用类和平行相关性引用类,建议在论文写作中标注出分类的标志,编辑和审稿人在编审时可据此核实参考文献引用的正确性.在论文评价时分类进行检索统计,有利于进一步规范引文分析的各项指标,变笼统的引文分析为细化的据类分析评价,使引文分析评价体系更加科学、更加可靠. 相似文献