Search (288 results, page 1 of 15)

  • × theme_ss:"Informetrie"
  1. Nicolaisen, J.: Citation analysis (2007) 0.12 
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    Date
    13. 7.2008 19:53:22
    Theme
    Citation indexing
  2. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.09 
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    Date
    22. 7.2006 15:22:28
    Theme
    Citation indexing
  3. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.05 
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    Date
    22. 3.2009 19:22:35
    Theme
    Citation indexing
  4. Asubiaro, T.V.; Onaolapo, S.: ¬A comparative study of the coverage of African journals in Web of Science, Scopus, and CrossRef (2023) 0.05 
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    Abstract
    This is the first study that evaluated the coverage of journals from Africa in Web of Science, Scopus, and CrossRef. A list of active journals published in each of the 55 African countries was compiled from Ulrich's periodicals directory and African Journals Online (AJOL) website. Journal master lists for Web of Science, Scopus, and CrossRef were searched for the African journals. A total of 2,229 unique active African journals were identified from Ulrich (N = 2,117, 95.0%) and AJOL (N = 243, 10.9%) after removing duplicates. The volume of African journals in Web of Science and Scopus databases is 7.4% (N = 166) and 7.8% (N = 174), respectively, compared to the 45.6% (N = 1,017) covered in CrossRef. While making up only 17.% of all the African journals, South African journals had the best coverage in the two most authoritative databases, accounting for 73.5% and 62.1% of all the African journals in Web of Science and Scopus, respectively. In contrast, Nigeria published 44.5% of all the African journals. The distribution of the African journals is biased in favor of Medical, Life and Health Sciences and Humanities and the Arts in the three databases. The low representation of African journals in CrossRef, a free indexing infrastructure that could be harnessed for building an African-centric research indexing database, is concerning.
    Date
    22. 6.2023 14:09:06
  5. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.05 
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    Date
    3. 1.2007 17:22:03
    Theme
    Citation indexing
  6. H-Index auch im Web of Science (2008) 0.05 
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    Date
    6. 4.2008 19:04:22
    Theme
    Citation indexing
  7. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.05 
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    Date
    26.12.2007 19:22:05
    Theme
    Citation indexing
  8. Shapiro, F.R.: Origins of bibliometrics, citation indexing and citation analysis : the neglected legal literature (1992) 0.04 
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    Theme
    Citation indexing
  9. Garfield, E.; Sher, I.H.: New factors in the evaluation of scientific literature literature through citation indexing (1963) 0.04 
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    Theme
    Citation indexing
  10. Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008) 0.04 
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    Date
    22. 6.2008 12:54:12
    Theme
    Citation indexing
  11. Walters, W.H.; Linvill, A.C.: Bibliographic index coverage of open-access journals in six subject areas (2011) 0.04 
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    Abstract
    We investigate the extent to which open-access (OA) journals and articles in biology, computer science, economics, history, medicine, and psychology are indexed in each of 11 bibliographic databases. We also look for variations in index coverage by journal subject, journal size, publisher type, publisher size, date of first OA issue, region of publication, language of publication, publication fee, and citation impact factor. Two databases, Biological Abstracts and PubMed, provide very good coverage of the OA journal literature, indexing 60 to 63% of all OA articles in their disciplines. Five databases provide moderately good coverage (22-41%), and four provide relatively poor coverage (0-12%). OA articles in biology journals, English-only journals, high-impact journals, and journals that charge publication fees of $1,000 or more are especially likely to be indexed. Conversely, articles from OA publishers in Africa, Asia, or Central/South America are especially unlikely to be indexed. Four of the 11 databases index commercially published articles at a substantially higher rate than articles published by universities, scholarly societies, nonprofit publishers, or governments. Finally, three databases-EBSCO Academic Search Complete, ProQuest Research Library, and Wilson OmniFile-provide less comprehensive coverage of OA articles than of articles in comparable subscription journals.
  12. Thelwall, M.: Are Mendeley reader counts high enough for research evaluations when articles are published? (2017) 0.04 
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    Abstract
    Purpose Mendeley reader counts have been proposed as early indicators for the impact of academic publications. The purpose of this paper is to assess whether there are enough Mendeley readers for research evaluation purposes during the month when an article is first published. Design/methodology/approach Average Mendeley reader counts were compared to the average Scopus citation counts for 104,520 articles from ten disciplines during the second half of 2016. Findings Articles attracted, on average, between 0.1 and 0.8 Mendeley readers per article in the month in which they first appeared in Scopus. This is about ten times more than the average Scopus citation count. Research limitations/implications Other disciplines may use Mendeley more or less than the ten investigated here. The results are dependent on Scopus's indexing practices, and Mendeley reader counts can be manipulated and have national and seniority biases. Practical implications Mendeley reader counts during the month of publication are more powerful than Scopus citations for comparing the average impacts of groups of documents but are not high enough to differentiate between the impacts of typical individual articles. Originality/value This is the first multi-disciplinary and systematic analysis of Mendeley reader counts from the publication month of an article.
    Date
    20. 1.2015 18:30:22
  13. Schulz-DuBois, E.O.: Arbeiten deutscher Wissenschaftler, die weltweit am häufigsten zitiert wurden (1984) 0.03 
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    Theme
    Citation indexing
  14. Small, H.; Sweeney, E.: Clustering the Science Citation Index using co-citations (1985) 0.03 
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    Theme
    Citation indexing
  15. Garfield, E.: Is citation analysis a legitime evaluation tool? (1979) 0.03 
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    Theme
    Citation indexing
  16. Hjerppe, R.: ¬An outline of bibliometrics and citation analysis (1980) 0.03 
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    Theme
    Citation indexing
  17. Vinkler, P.: ¬A quasi-quantitative citation model (1987) 0.03 
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  18. Cozzens, S.E.: What do citations count? : the rhetoric-first model (1989) 0.03 
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  19. Peritz, B.C.: Citation characteristics in library science : some further results from a bibliometric survey (1981) 0.03 
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  20. Bensman, S.J.: Garfield and the impact factors (2007) 0.03 
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