Search (205 results, page 1 of 11)

  • × theme_ss:"Informetrie"
  1. 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
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.858-862
    Year
    2009
  2. Althouse, B.M.; West, J.D.; Bergstrom, C.T.; Bergstrom, T.: Differences in impact factor across fields and over time (2009) 0.05 
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    Date
    23. 2.2009 18:22:28
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.1, S.27-34
    Year
    2009
  3. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.05 
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    Date
    22. 3.2009 17:49:11
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.557-570
    Year
    2009
  4. Camacho-Miñano, M.-del-Mar; Núñez-Nickel, M.: ¬The multilayered nature of reference selection (2009) 0.05 
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    Date
    22. 3.2009 19:05:07
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.754-777
    Year
    2009
  5. Leydesdorff, L.; Sun, Y.: National and international dimensions of the Triple Helix in Japan : university-industry-government versus international coauthorship relations (2009) 0.05 
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    Date
    22. 3.2009 19:07:20
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.778-788
    Year
    2009
  6. He, Z.-L.: International collaboration does not have greater epistemic authority (2009) 0.05 
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    Date
    26. 9.2009 11:22:05
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.10, S.2151-2164
    Year
    2009
  7. Levitt, J.M.; Thelwall, M.: Citation levels and collaboration within library and information science (2009) 0.04 
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    Abstract
    Collaboration is a major research policy objective, but does it deliver higher quality research? This study uses citation analysis to examine the Web of Science (WoS) Information Science & Library Science subject category (IS&LS) to ascertain whether, in general, more highly cited articles are more highly collaborative than other articles. It consists of two investigations. The first investigation is a longitudinal comparison of the degree and proportion of collaboration in five strata of citation; it found that collaboration in the highest four citation strata (all in the most highly cited 22%) increased in unison over time, whereas collaboration in the lowest citation strata (un-cited articles) remained low and stable. Given that over 40% of the articles were un-cited, it seems important to take into account the differences found between un-cited articles and relatively highly cited articles when investigating collaboration in IS&LS. The second investigation compares collaboration for 35 influential information scientists; it found that their more highly cited articles on average were not more highly collaborative than their less highly cited articles. In summary, although collaborative research is conducive to high citation in general, collaboration has apparently not tended to be essential to the success of current and former elite information scientists.
    Date
    22. 3.2009 12:43:51
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.434-442
    Year
    2009
  8. Shibata, N.; Kajikawa, Y.; Takeda, Y.; Matsushima, K.: Comparative study on methods of detecting research fronts using different types of citation (2009) 0.04 
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    Date
    22. 3.2009 17:52:50
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.571-580
    Year
    2009
  9. Mukherjee, B.: Do open-access journals in library and information science have any scholarly impact? : a bibliometric study of selected open-access journals using Google Scholar (2009) 0.04 
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    Date
    22. 3.2009 17:54:59
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.581-594
    Year
    2009
  10. Costas, R.; Bordons, M.; Leeuwen, T.N. van; Raan, A.F.J. van: Scaling rules in the science system : Influence of field-specific citation characteristics on the impact of individual researchers (2009) 0.04 
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    Date
    22. 3.2009 19:02:48
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.740-753
    Year
    2009
  11. Raan, A.F.J. van: Scaling rules in the science system : influence of field-specific citation characteristics on the impact of research groups (2008) 0.03 
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    Date
    22. 3.2009 19:03:12
    Footnote
    Vgl. auch: Costas, R., M. Bordons u. T.N. van Leeuwen u.a.: Scaling rules in the science system: Influence of field-specific citation characteristics on the impact of individual researchers. In: Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.740-753.
  12. Shah, T.A.; Gul, S.; Gaur, R.C.: Authors self-citation behaviour in the field of Library and Information Science (2015) 0.03 
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    Abstract
    Purpose The purpose of this paper is to analyse the author self-citation behavior in the field of Library and Information Science. Various factors governing the author self-citation behavior have also been studied. Design/methodology/approach The 2012 edition of Social Science Citation Index was consulted for the selection of LIS journals. Under the subject heading "Information Science and Library Science" there were 84 journals and out of these 12 journals were selected for the study based on systematic sampling. The study was confined to original research and review articles that were published in select journals in the year 2009. The main reason to choose 2009 was to get at least five years (2009-2013) citation data from Web of Science Core Collection (excluding Book Citation Index) and SciELO Citation Index. A citation was treated as self-citation whenever one of the authors of citing and cited paper was common, i.e., the set of co-authors of the citing paper and that of the cited one are not disjoint. To minimize the risk of homonyms, spelling variances and misspelling in authors' names, the authors compared full author names in citing and cited articles. Findings A positive correlation between number of authors and total number of citations exists with no correlation between number of authors and number/share of self-citations, i.e., self-citations are not affected by the number of co-authors in a paper. Articles which are produced in collaboration attract more self-citations than articles produced by only one author. There is no statistically significant variation in citations counts (total and self-citations) in works that are result of different types of collaboration. A strong and statistically significant positive correlation exists between total citation count and frequency of self-citations. No relation could be ascertained between total citation count and proportion of self-citations. Authors tend to cite more of their recent works than the work of other authors. Total citation count and number of self-citations are positively correlated with the impact factor of source publication and correlation coefficient for total citations is much higher than that for self-citations. A negative correlation exhibits between impact factor and the share of self-citations. Of particular note is that the correlation in all the cases is of weak nature. Research limitations/implications The research provides an understanding of the author self-citations in the field of LIS. readers are encouraged to further the study by taking into account large sample, tracing citations also from Book Citation Index (WoS) and comparing results with other allied subjects so as to validate the robustness of the findings of this study. Originality/value Readers are encouraged to further the study by taking into account large sample, tracing citations also from Book Citation Index (WoS) and comparing results with other allied subjects so as to validate the robustness of the findings of this study.
    Date
    20. 1.2015 18:30:22
  13. Egghe, L.; Liang, L.; Rousseau, R.: ¬A relation between h-index and impact factor in the power-law model (2009) 0.02 
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    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.11, S.2362-2365
    Year
    2009
  14. Harzing, A.-W.; Wal, R. van der: ¬A Google Scholar h-index for journals : an alternative metric to measure journal impact in economics and business (2009) 0.02 
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    Journal of the American Society for Information Science and Technology. 60(2009) no.1, S.41-46
    Year
    2009
  15. Burrell, Q.L.: Some comments on "A proposal for a dynamic h-Type Index" by Rousseau and Ye (2009) 0.02 
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    Journal of the American Society for Information Science and Technology. 60(2009) no.2, S.418-419
    Year
    2009
  16. Tol, R.S.J.: ¬The Matthew effect defined and tested for the 100 most prolific economists (2009) 0.02 
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    Journal of the American Society for Information Science and Technology. 60(2009) no.2, S.420-426
    Year
    2009
  17. Marchant, T.: Score-based bibliometric rankings of authors (2009) 0.02 
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    2009
  18. Woeginger, G.J.: Generalizations of Egghe's g-index (2009) 0.02 
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    Journal of the American Society for Information Science and Technology. 60(2009) no.6, S.1267-1273
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    2009
  19. Gianoli, E.; Molina-Montenegro, M.A.: Insights into the relationship between the h-index and self-citations (2009) 0.02 
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  20. Hu, X.: Loads of special authorship functions : linear growth in the percentage of "equal first authors" and corresponding authors (2009) 0.02 
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    Year
    2009

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