Search (250 results, page 2 of 13)

  • × theme_ss:"Informetrie"
  1. Haustein, S.: Scientific interactions and research evaluation : from bibliometrics to Altmetrics (2015) 0.02
    0.021170296 = product of:
      0.04234059 = sum of:
        0.04234059 = product of:
          0.08468118 = sum of:
            0.08468118 = weight(_text_:c in 2981) [ClassicSimilarity], result of:
              0.08468118 = score(doc=2981,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.5389696 = fieldWeight in 2981, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2981)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Re:inventing information science in the networked society: Proceedings of the 14th International Symposium on Information Science, Zadar/Croatia, 19th-21st May 2015. Eds.: F. Pehar, C. Schloegl u. C. Wolff
  2. Lewandowski, D.; Haustein, S.: What does the German-language information science community cite? (2015) 0.02
    0.021170296 = product of:
      0.04234059 = sum of:
        0.04234059 = product of:
          0.08468118 = sum of:
            0.08468118 = weight(_text_:c in 2987) [ClassicSimilarity], result of:
              0.08468118 = score(doc=2987,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.5389696 = fieldWeight in 2987, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2987)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Re:inventing information science in the networked society: Proceedings of the 14th International Symposium on Information Science, Zadar/Croatia, 19th-21st May 2015. Eds.: F. Pehar, C. Schloegl u. C. Wolff
  3. Liu, Z.; Wang, C.: Mapping interdisciplinarity in demography : a journal network analysis (2005) 0.02
    0.02095752 = product of:
      0.04191504 = sum of:
        0.04191504 = product of:
          0.08383008 = sum of:
            0.08383008 = weight(_text_:c in 4384) [ClassicSimilarity], result of:
              0.08383008 = score(doc=4384,freq=2.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.5335526 = fieldWeight in 4384, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4384)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  4. Lewison, G.: ¬The work of the Bibliometrics Research Group (City University) and associates (2005) 0.02
    0.018513763 = product of:
      0.037027527 = sum of:
        0.037027527 = product of:
          0.07405505 = sum of:
            0.07405505 = weight(_text_:22 in 4890) [ClassicSimilarity], result of:
              0.07405505 = score(doc=4890,freq=2.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.46428138 = fieldWeight in 4890, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=4890)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    20. 1.2007 17:02:22
  5. Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014) 0.02
    0.018513763 = product of:
      0.037027527 = sum of:
        0.037027527 = product of:
          0.07405505 = sum of:
            0.07405505 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
              0.07405505 = score(doc=1239,freq=2.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.46428138 = fieldWeight in 1239, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1239)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    18. 3.2014 19:13:22
  6. Haustein, S.; Sugimoto, C.; Larivière, V.: Social media in scholarly communication : Guest editorial (2015) 0.02
    0.018238677 = product of:
      0.036477353 = sum of:
        0.036477353 = sum of:
          0.01796359 = weight(_text_:c in 3809) [ClassicSimilarity], result of:
            0.01796359 = score(doc=3809,freq=2.0), product of:
              0.15711682 = queryWeight, product of:
                3.4494052 = idf(docFreq=3817, maxDocs=44218)
                0.045548957 = queryNorm
              0.114332706 = fieldWeight in 3809, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4494052 = idf(docFreq=3817, maxDocs=44218)
                0.0234375 = fieldNorm(doc=3809)
          0.018513763 = weight(_text_:22 in 3809) [ClassicSimilarity], result of:
            0.018513763 = score(doc=3809,freq=2.0), product of:
              0.15950468 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045548957 = queryNorm
              0.116070345 = fieldWeight in 3809, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0234375 = fieldNorm(doc=3809)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
  7. Wang, C.: Bibliometrics : a textbook (1990) 0.02
    0.01796359 = product of:
      0.03592718 = sum of:
        0.03592718 = product of:
          0.07185436 = sum of:
            0.07185436 = weight(_text_:c in 5040) [ClassicSimilarity], result of:
              0.07185436 = score(doc=5040,freq=2.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.45733082 = fieldWeight in 5040, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5040)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  8. Samoylenko, I.; Chao, T.-C.; Liu, W.-C.; Chen, C.-M.: Visualizing the scientific world and its evolution (2006) 0.02
    0.015556926 = product of:
      0.031113852 = sum of:
        0.031113852 = product of:
          0.062227704 = sum of:
            0.062227704 = weight(_text_:c in 5911) [ClassicSimilarity], result of:
              0.062227704 = score(doc=5911,freq=6.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.3960601 = fieldWeight in 5911, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5911)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Chang, K.-C.; Zhou, W.; Zhang, S.; Yuan, C,-C.: Threshold effects of the patent H-index in the relationship between patent citations and market value (2015) 0.02
    0.015556926 = product of:
      0.031113852 = sum of:
        0.031113852 = product of:
          0.062227704 = sum of:
            0.062227704 = weight(_text_:c in 2344) [ClassicSimilarity], result of:
              0.062227704 = score(doc=2344,freq=6.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.3960601 = fieldWeight in 2344, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2344)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  10. Grazia Colonia; Dimmler, E.; Dresel, R.; Messner, C.; Krobath, A.; Petz, S.; Sypien, M.; Boxen, P. van; Harders, M.; Heuer, D.; Jordans, I.; Juchem, K.; Linnertz, M.; Mittelhuber, I.; Schwammel, S.; Schlögl, C.; Stock, W.G.: Informationswissenschaftliche Zeitschriften in szientometrischer Analyse (2002) 0.01
    0.014819207 = product of:
      0.029638413 = sum of:
        0.029638413 = product of:
          0.059276827 = sum of:
            0.059276827 = weight(_text_:c in 1075) [ClassicSimilarity], result of:
              0.059276827 = score(doc=1075,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.3772787 = fieldWeight in 1075, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1075)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  11. Malesios, C.: Some variations on the standard theoretical models for the h-index : a comparative analysis (2015) 0.01
    0.014819207 = product of:
      0.029638413 = sum of:
        0.029638413 = product of:
          0.059276827 = sum of:
            0.059276827 = weight(_text_:c in 2267) [ClassicSimilarity], result of:
              0.059276827 = score(doc=2267,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.3772787 = fieldWeight in 2267, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2267)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Various mathematical models have been proposed in the recent literature for estimating the h-index using measures such as number of articles (P) and citations received (C). These models have been previously empirically tested assuming a mathematical model and predetermining the models' parameter values at some fixed constant. The present study, from a statistical modeling viewpoint, investigates alternative distributions commonly used for this type of point data. The study shows that the typical assumptions for the parameters of the h-index mathematical models in such representations are not always realistic, with more suitable specifications being favorable. Prediction of the h-index is also demonstrated.
  12. Raan, A.F.J. van: Statistical properties of bibliometric indicators : research group indicator distributions and correlations (2006) 0.01
    0.013091208 = product of:
      0.026182417 = sum of:
        0.026182417 = product of:
          0.052364834 = sum of:
            0.052364834 = weight(_text_:22 in 5275) [ClassicSimilarity], result of:
              0.052364834 = score(doc=5275,freq=4.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.32829654 = fieldWeight in 5275, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5275)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 16:20:22
  13. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01
    0.013091208 = product of:
      0.026182417 = sum of:
        0.026182417 = product of:
          0.052364834 = sum of:
            0.052364834 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.052364834 = score(doc=2763,freq=4.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.32829654 = fieldWeight in 2763, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2763)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:22:35
  14. Schlögl, C.; Gorraiz, J.; Bart, C.; Bargmann, M.: Messen und gemessen werden : Möglichkeiten und Grenzen quantitativer Forschungsevaluierungen am Beispiel eines Institutsvergleichs (2001) 0.01
    0.012702176 = product of:
      0.025404353 = sum of:
        0.025404353 = product of:
          0.050808705 = sum of:
            0.050808705 = weight(_text_:c in 5958) [ClassicSimilarity], result of:
              0.050808705 = score(doc=5958,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.32338172 = fieldWeight in 5958, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5958)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  15. Sugimoto, C.R.; Pratt , J.A.; Hauser, K.: Using field cocitation analysis to assess reciprocal and shared impact of LIS/MIS fields (2008) 0.01
    0.012702176 = product of:
      0.025404353 = sum of:
        0.025404353 = product of:
          0.050808705 = sum of:
            0.050808705 = weight(_text_:c in 1959) [ClassicSimilarity], result of:
              0.050808705 = score(doc=1959,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.32338172 = fieldWeight in 1959, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1959)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    This study utilized bibliometric tools to analyze the relationship between two separate, but related, fields: Library and Information Science (LIS) and Management Information Systems (MIS). The top-ranked 48 journals in each field were used as the unit of analysis. Using these journals, field cocitation was introduced as a method for evaluating the relationships between the two fields. The three-phased study evaluated (a) the knowledge imported/exported between LIS and MIS, (b) the body of knowledge influenced by both fields, and (c) the overlap in fields as demonstrated by multidimensional scaling. Data collection and analysis were performed using DIALOG and SPSS programs. The primary findings from this study indicate that (a) the MIS impact on LIS is greater than the reverse, (b) there is a growing trend for shared impact between the two disciplines, and (c) the area of overlap between the two fields is predominately those journals focusing on technology systems and digital information. Additionally, this study validated field cocitation as a method by which to evaluate relationships between fields.
  16. Chen, C.; Ibekwe-SanJuan, F.; Hou, J.: ¬The structure and dynamics of cocitation clusters : a multiple-perspective cocitation analysis (2010) 0.01
    0.012702176 = product of:
      0.025404353 = sum of:
        0.025404353 = product of:
          0.050808705 = sum of:
            0.050808705 = weight(_text_:c in 3591) [ClassicSimilarity], result of:
              0.050808705 = score(doc=3591,freq=4.0), product of:
                0.15711682 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.045548957 = queryNorm
                0.32338172 = fieldWeight in 3591, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3591)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    A multiple-perspective cocitation analysis method is introduced for characterizing and interpreting the structure and dynamics of cocitation clusters. The method facilitates analytic and sense making tasks by integrating network visualization, spectral clustering, automatic cluster labeling, and text summarization. Cocitation networks are decomposed into cocitation clusters. The interpretation of these clusters is augmented by automatic cluster labeling and summarization. The method focuses on the interrelations between a cocitation cluster's members and their citers. The generic method is applied to a three-part analysis of the field of information science as defined by 12 journals published between 1996 and 2008: (a) a comparative author cocitation analysis (ACA), (b) a progressive ACA of a time series of cocitation networks, and (c) a progressive document cocitation analysis (DCA). Results show that the multiple-perspective method increases the interpretability and accountability of both ACA and DCA networks.
  17. Pichappan, P.; Sangaranachiyar, S.: Ageing approach to scientific eponyms (1996) 0.01
    0.01234251 = product of:
      0.02468502 = sum of:
        0.02468502 = product of:
          0.04937004 = sum of:
            0.04937004 = weight(_text_:22 in 80) [ClassicSimilarity], result of:
              0.04937004 = score(doc=80,freq=2.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.30952093 = fieldWeight in 80, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=80)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Report presented at the 16th National Indian Association of Special Libraries and Information Centres Seminar Special Interest Group Meeting on Informatrics in Bombay, 19-22 Dec 94
  18. Mommoh, O.M.: Subject analysis of post-graduate theses in library, archival and information science at Ahmadu Bello University, Zaria (1995/96) 0.01
    0.01234251 = product of:
      0.02468502 = sum of:
        0.02468502 = product of:
          0.04937004 = sum of:
            0.04937004 = weight(_text_:22 in 673) [ClassicSimilarity], result of:
              0.04937004 = score(doc=673,freq=2.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.30952093 = fieldWeight in 673, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=673)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Library focus. 13/14(1995/96), S.22-25
  19. Chongde, W.; Zhe, W.: Evaluation of the models for Bradford's law (1998) 0.01
    0.01234251 = product of:
      0.02468502 = sum of:
        0.02468502 = product of:
          0.04937004 = sum of:
            0.04937004 = weight(_text_:22 in 3688) [ClassicSimilarity], result of:
              0.04937004 = score(doc=3688,freq=2.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.30952093 = fieldWeight in 3688, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3688)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:12:28
  20. Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998) 0.01
    0.01234251 = product of:
      0.02468502 = sum of:
        0.02468502 = product of:
          0.04937004 = sum of:
            0.04937004 = weight(_text_:22 in 3691) [ClassicSimilarity], result of:
              0.04937004 = score(doc=3691,freq=2.0), product of:
                0.15950468 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045548957 = queryNorm
                0.30952093 = fieldWeight in 3691, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3691)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:26:54

Years

Languages

  • e 225
  • d 22
  • ? 1
  • m 1
  • ro 1
  • More… Less…

Types

  • a 244
  • m 4
  • el 3
  • s 2
  • r 1
  • More… Less…