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《Journal of Informetrics》2023,17(1):101379
We performed a citation analysis on the Web of Science publications consisting of more than 63 million articles and over a billion citations on 254 subjects from 1981 to 2020. We proposed the Article’s Scientific Prestige (ASP) metric and compared this metric to number of citations (#Cit) and journal grade in measuring the scientific impact of individual articles in the large-scale hierarchical and multi-disciplined citation network. In contrast to #Cit, ASP, that is computed based on the eigenvector centrality, considers both direct and indirect citations, and provides steady-state evaluation cross different disciplines. We found that ASP and #Cit are not aligned for most articles, with a growing mismatch amongst the less cited articles. While both metrics are reliable for evaluating the prestige of articles such as Nobel Prize winning articles, ASP tends to provide more persuasive rankings than #Cit when the articles are not highly cited. The journal grade, that is eventually determined by a few highly cited articles, is unable to properly reflect the scientific impact of individual articles. The number of references and coauthors are less relevant to scientific impact, but subjects do make a difference. 相似文献
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Péter Vinkler 《Journal of Informetrics》2012,6(2):254-264
The effect of two different calculation methods for obtaining relative impact indicators is modelled. Science policy considerations make it clear that evaluating the sets of publications, the “ratio of the sums” method should be preferred over the “mean of the ratios” method. Accordingly, determining the relative total impact against the mean relative impact of the publications of teams or institutes may be preferred. The special problem caused by relating the number of citations of an individual article to the Garfield (Impact) Factor (or mean citedness) of the publishing journal (or a set of journals selected as standard) lower than zero is demonstrated by examples. The possible effects of the different share of publications in different fields on the value of the “new crown” index are also modelled. The assessment methods using several appropriately weighted indicators which result in a composite index are recommended. The acronym “BMV” is suggested to term the relative impact indicators (e.g. RCR, CPP/JCSm, CPP/FCSm and RW) in scientometrics. 相似文献
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《Journal of Informetrics》2014,8(4):895-903
Today, it is not clear how the impact of research on other areas of society than science should be measured. While peer review and bibliometrics have become standard methods for measuring the impact of research in science, there is not yet an accepted framework within which to measure societal impact. Alternative metrics (called altmetrics to distinguish them from bibliometrics) are considered an interesting option for assessing the societal impact of research, as they offer new ways to measure (public) engagement with research output. Altmetrics is a term to describe web-based metrics for the impact of publications and other scholarly material by using data from social media platforms (e.g. Twitter or Mendeley). This overview of studies explores the potential of altmetrics for measuring societal impact. It deals with the definition and classification of altmetrics. Furthermore, their benefits and disadvantages for measuring impact are discussed. 相似文献
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Cassidy R. Sugimoto Terrell G. Russell Lokman I. Meho Gary Marchionini 《Library & information science research》2008,30(4):273-281
This article provides the first comparison of citation counts and mentoring impact (MPACT) indicators — indicators that serve to quantify the process of doctoral mentoring. Using a dataset of 120 library and information science (LIS) faculty members in North America, this article examines the correlation between MPACT indicators and citation counts. Results suggest that MPACT indicators measure something distinct from citation counts. The article discusses these distinctions, with emphasis on differences between faculty ranks. It considers possible explanations for weak correlations between citations and mentoring at the full professor rank as well as implications for faculty activity analysis and broader institutional evolution. 相似文献
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Despite recent evidence that Microsoft Academic is an extensive source of citation counts for journal articles, it is not known if the same is true for academic books. This paper fills this gap by comparing citations to 16,463 books from 2013 to 2016 in the Book Citation Index (BKCI) against automatically extracted citations from Microsoft Academic and Google Books in 17 fields. About 60% of the BKCI books had records in Microsoft Academic, varying by year and field. Citation counts from Microsoft Academic were 1.5 to 3.6 times higher than from BKCI in nine subject areas across all years for books indexed by both. Microsoft Academic found more citations than BKCI because it indexes more scholarly publications and combines citations to different editions and chapters. In contrast, BKCI only found more citations than Microsoft Academic for books in three fields from 2013-2014. Microsoft Academic also found more citations than Google Books in six fields for all years. Thus, Microsoft Academic may be a useful source for the impact assessment of books when comprehensive coverage is not essential. 相似文献
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《Journal of Informetrics》2022,16(1):101251
Women have long suffered in both academia and industry from lower status, underrepresentation, unequal treatment, and other challenges based on gender. This paper explores whether a gender-neutral name is associated with the research impact of a scientist by examining three years of citations. The data for this study are derived from publications indexed in ISI's Web of Science (WoS) database from 2009 to 2015. By assigning a name neutralization index score to each author, we investigate the relationship between the neutralization index and citations and find the following results: (1) generally, the more neutral the name, the more citations the publications received; (2) the neutral effect was more pronounced for authors with feminine names than for authors with masculine names. 相似文献
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OBJECTIVES: To investigate whether an information literacy programme for pre-registration nursing students at a UK higher education institution is effective in developing their skills and confidence: examines students' skill levels, factors affecting their confidence, and relationships between skills, confidence and demographic characteristics. METHODS: Quantitative and qualitative techniques were used: pre- and post-tests to measure changes in students' skills and self-assessed confidence levels after two key sessions in their first semester (n = 29); semi-structured interviews to explore factors affecting confidence (n = 5). RESULTS: Findings demonstrated positive impacts on skills and confidence. Key areas of skill development included: identifying journal articles, selecting search terms and evaluating website quality. Factors affecting confidence included: successful 'mastery' experiences in searching for information and the programme itself, especially small-group sessions, handouts and staff support. Evidence on links between skills, confidence and demographic factors was inconclusive. CONCLUSIONS: The study demonstrated the programme's effectiveness and identified areas for development, including the need to help students understand the relative merits of search engines and other sources. Evidence has contributed to a change in departmental policy, making attendance at sessions mandatory. Further studies have been recommended. 相似文献
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Many journals post accepted articles online before they are formally published in an issue. Early citation impact evidence for these articles could be helpful for timely research evaluation and to identify potentially important articles that quickly attract many citations. This article investigates whether Microsoft Academic can help with this task. For over 65,000 Scopus in-press articles from 2016 and 2017 across 26 fields, Microsoft Academic found 2–5 times as many citations as Scopus, depending on year and field. From manual checks of 1122 Microsoft Academic citations not found in Scopus, Microsoft Academic’s citation indexing was faster but not much wider than Scopus for journals. It achieved this by associating citations to preprints with their subsequent in-press versions and by extracting citations from in-press articles. In some fields its coverage of scholarly digital libraries, such as arXiv.org, was also an advantage. Thus, Microsoft Academic seems to be a more comprehensive automatic source of citation counts for in-press articles than Scopus. 相似文献
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《Government Information Quarterly》2021,38(4):101602
Ideological polarisation has drawn wide attention from both the general public and researchers. It is frequently argued that under the proliferation of ideological polarisation, echo chambers may be formed while people inside the echo chambers may be less willing to accept alternative political viewpoints and more likely to fall into fake news and online misinformation. To obtain more empirical evidence, we conducted an online experiment that explored the relationship between one's position in the political spectrum and his/her capabilities of identifying political misinformation, as well as the information consumption habits that may help identify online misinformation. While we statistically validated some information consumption habits that can help to identify political misinformation, it was unexpected that political extremists may be indeed more capable of identifying the validity of news and online information. Based on our findings, we also provided a range of theoretical and practical implications. 相似文献
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Michael O. Wirth 《Journal of Media Economics》2013,26(2):39-53
The author argues that cable industry is having increasingly negative impact on broadcast television as its power in both the programing and advertising markets increase. Cable system operaters are having increasing incentives to drop or refuse to add broadcast stations or to relocate them to less desirable channel locations as a means of improving their performance in the markets. The author warns that current trends could be harmful to many broadcast stations, but he is especially pessimistic about the future of independent UHF stations. 相似文献
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In 2004, the Scottish Parliament commissioned an independent review of abuse in children’s residential establishments between 1950 and 1995. In 2007, the review’s findings were published in a report entitled Historical Abuse Systemic Review: Residential Schools and Children’s Homes in Scotland 1950 to 1995, also known as the Shaw Report. In this article, the Shaw Report provides the jumping off point for a case study of the social justice impact of records. Drawing on secondary literature, interviews, and care-related records, the study identifies narratives that speak to the social justice impact of care records on care-leavers seeking access to them; it also assesses the potential of the surviving administrative records to serve as a foundation on which to construct historical narratives that speak more generally to the experience of children in residential care. 相似文献
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To determine what maximizes the effectiveness of on‐air promotions, as measured by ratings/share changes, this study tested a seven‐part model focusing on the structural salience of network prime‐time promos carried within other prime‐time programs. The results of analysis of more than 5,000 promos carried within 656 videotaped prime‐time hours provided consistent support for the salience model. Results showed significant changes in industry promotional practices over time and significant differences by network, genre, and the familiarity of the program to audiences. Although lead‐in ratings remained the dominant force impacting ratings for series programs (but not sporting events, movies, or specials), promotional salience variables contributed significantly to improved ratings, especially for mid‐rated continuing programs. 相似文献
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L. A. Mosunova 《Scientific and Technical Information Processing》2017,44(3):175-183
This paper sets the problem of development of information culture and advances the hypothesis about understanding of the meaning of information as its basis. Five ideas related to the problems of the paper are distinguished in the theory of understanding. The paper describes the concept of adequate and inadequate understanding the meaning of information and develops the criteria of understanding the meaning of information. The concept of the “understanding of the meaning of information” is defined. 相似文献
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《Journal of Informetrics》2014,8(4):904-911
It is well-known that the distribution of citations to articles in a journal is skewed. We ask whether journal rankings based on the impact factor are robust with respect to this fact. We exclude the most cited paper, the top 5 and 10 cited papers for 100 economics journals and recalculate the impact factor. Afterwards we compare the resulting rankings with the original ones from 2012. Our results show that the rankings are relatively robust. This holds both for the 2-year and the 5-year impact factor. 相似文献
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《Journal of Informetrics》2022,16(3):101314
Research studies have found that coauthorship with top scientists positively correlates with researchers’ career advancement. However, the influence of different proximities and types of coauthorship with top scientists on their performance has rarely been discussed. We identified the winners of four awards as top authors. We also evaluated the effect on the researchers’ affiliation change, research topic, productivity, and impact before and after three top-ordinary scientist coauthorship types (strong, moderate, and weak), examining the effect after top-top and ordinary-ordinary scientist coauthorships. Additionally, a coauthorship closeness indicator was proposed, considering the team size and author role to measure the collaboration relationship between coauthors. The results reveal that the top scientist in strong coauthorship obtained the highest affiliation change rate. For the top-ordinary coauthorship, the affiliation change rate for top scientists is higher than for ordinary scientists. For other aspects (the coauthor number, research topic, productivity, and impact), the rate after strong and moderate coauthorships increases compared to weak top-ordinary coauthorship type for top and ordinary scientists. Therefore, top scientists obtain a partner with skills, and ordinary scientists obtain more guidance. Strong and moderate coauthorships are win-win relationships for top-ordinary coauthorship types. 相似文献