Document (#33739)

Author
Liang, L.
Rousseau, R.
Title
Yield sequences as journal attractivity indicators : "payback times" for Science and Nature
Source
Journal of documentation. 64(2008) no.2, S.229-245
Year
2008
Abstract
Purpose - The yield period of a journal is defined as the time needed to accumulate the same number of citations as the number of references included during the period of study. Yield sequences are proposed as journal attractivity indicators describing dynamic characteristics of a journal. This paper aims to investigate their use. Design/methodology/approach - As a case study the yield sequences of the journals Nature and Science from 1955 onward are determined. Similarities and dissimilarities between these sequences are discussed and factors affecting yield periods are determined. Findings - The study finds that yield sequences make dynamic aspects of a journal visible, as reflected through citations. Exceptional circumstances (here the publication of Laemmli's paper in 1970 in the journal Nature) become clearly visible. The average number of references per article, the citation distribution and the size of the database used to collect citations are factors influencing yield sequences. Originality/value - A new dynamic indicator for the study of journals is introduced.
Theme
Informetrie
Object
Science
Nature

Similar documents (author)

  1. Egghe, L.; Liang, L.; Rousseau, R.: ¬A relation between h-index and impact factor in the power-law model (2009) 4.26
    4.2621346 = sum of:
      4.2621346 = sum of:
        1.7468604 = weight(author_txt:rousseau in 760) [ClassicSimilarity], result of:
          1.7468604 = score(doc=760,freq=1.0), product of:
            0.61710364 = queryWeight, product of:
              7.5486417 = idf(docFreq=60, maxDocs=42596)
              0.08175029 = queryNorm
            2.8307407 = fieldWeight in 760, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.5486417 = idf(docFreq=60, maxDocs=42596)
              0.375 = fieldNorm(doc=760)
        2.515274 = weight(author_txt:liang in 760) [ClassicSimilarity], result of:
          2.515274 = score(doc=760,freq=1.0), product of:
            0.78688186 = queryWeight, product of:
              1.1292126 = boost
              8.524021 = idf(docFreq=22, maxDocs=42596)
              0.08175029 = queryNorm
            3.196508 = fieldWeight in 760, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.524021 = idf(docFreq=22, maxDocs=42596)
              0.375 = fieldNorm(doc=760)
    
  2. Egghe, L.; Liang, L.; Rousseau, R.: Fundamental properties of rhythm sequences (2008) 4.26
    4.2621346 = sum of:
      4.2621346 = sum of:
        1.7468604 = weight(author_txt:rousseau in 3145) [ClassicSimilarity], result of:
          1.7468604 = score(doc=3145,freq=1.0), product of:
            0.61710364 = queryWeight, product of:
              7.5486417 = idf(docFreq=60, maxDocs=42596)
              0.08175029 = queryNorm
            2.8307407 = fieldWeight in 3145, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.5486417 = idf(docFreq=60, maxDocs=42596)
              0.375 = fieldNorm(doc=3145)
        2.515274 = weight(author_txt:liang in 3145) [ClassicSimilarity], result of:
          2.515274 = score(doc=3145,freq=1.0), product of:
            0.78688186 = queryWeight, product of:
              1.1292126 = boost
              8.524021 = idf(docFreq=22, maxDocs=42596)
              0.08175029 = queryNorm
            3.196508 = fieldWeight in 3145, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.524021 = idf(docFreq=22, maxDocs=42596)
              0.375 = fieldNorm(doc=3145)
    
  3. Liang, D.F.: Mathematical journals : an annotated guide (1992) 2.10
    2.0960617 = sum of:
      2.0960617 = product of:
        4.1921234 = sum of:
          4.1921234 = weight(author_txt:liang in 248) [ClassicSimilarity], result of:
            4.1921234 = score(doc=248,freq=1.0), product of:
              0.78688186 = queryWeight, product of:
                1.1292126 = boost
                8.524021 = idf(docFreq=22, maxDocs=42596)
                0.08175029 = queryNorm
              5.327513 = fieldWeight in 248, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.524021 = idf(docFreq=22, maxDocs=42596)
                0.625 = fieldNorm(doc=248)
        0.5 = coord(1/2)
    
  4. Liang, L.: R-Sequences : relative indicators for the rhythm of science (2005) 2.10
    2.0960617 = sum of:
      2.0960617 = product of:
        4.1921234 = sum of:
          4.1921234 = weight(author_txt:liang in 4878) [ClassicSimilarity], result of:
            4.1921234 = score(doc=4878,freq=1.0), product of:
              0.78688186 = queryWeight, product of:
                1.1292126 = boost
                8.524021 = idf(docFreq=22, maxDocs=42596)
                0.08175029 = queryNorm
              5.327513 = fieldWeight in 4878, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.524021 = idf(docFreq=22, maxDocs=42596)
                0.625 = fieldNorm(doc=4878)
        0.5 = coord(1/2)
    
  5. Liang, T.-Y.: ¬The basic entity model : a fundamental theoretical model of information and information processing (1994) 1.68
    1.6768494 = sum of:
      1.6768494 = product of:
        3.3536987 = sum of:
          3.3536987 = weight(author_txt:liang in 468) [ClassicSimilarity], result of:
            3.3536987 = score(doc=468,freq=1.0), product of:
              0.78688186 = queryWeight, product of:
                1.1292126 = boost
                8.524021 = idf(docFreq=22, maxDocs=42596)
                0.08175029 = queryNorm
              4.2620106 = fieldWeight in 468, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.524021 = idf(docFreq=22, maxDocs=42596)
                0.5 = fieldNorm(doc=468)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Campanario, J.M.: Self-citations that contribute to the journal impact factor : an investment-benefit-yield analysis (2010) 0.28
    0.28084916 = sum of:
      0.28084916 = product of:
        1.1702049 = sum of:
          0.015011867 = weight(abstract_txt:science in 125) [ClassicSimilarity], result of:
            0.015011867 = score(doc=125,freq=1.0), product of:
              0.049157526 = queryWeight, product of:
                1.0902152 = boost
                3.908901 = idf(docFreq=2322, maxDocs=42596)
                0.011535146 = queryNorm
              0.30538288 = fieldWeight in 125, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.908901 = idf(docFreq=2322, maxDocs=42596)
                0.078125 = fieldNorm(doc=125)
          0.060276512 = weight(abstract_txt:journals in 125) [ClassicSimilarity], result of:
            0.060276512 = score(doc=125,freq=3.0), product of:
              0.08610437 = queryWeight, product of:
                1.4428787 = boost
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.011535146 = queryNorm
              0.7000401 = fieldWeight in 125, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.078125 = fieldNorm(doc=125)
          0.029788844 = weight(abstract_txt:study in 125) [ClassicSimilarity], result of:
            0.029788844 = score(doc=125,freq=2.0), product of:
              0.077625185 = queryWeight, product of:
                1.9374636 = boost
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.011535146 = queryNorm
              0.38375232 = fieldWeight in 125, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.078125 = fieldNorm(doc=125)
          0.13012895 = weight(abstract_txt:citations in 125) [ClassicSimilarity], result of:
            0.13012895 = score(doc=125,freq=5.0), product of:
              0.13886407 = queryWeight, product of:
                2.2441807 = boost
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.011535146 = queryNorm
              0.9370959 = fieldWeight in 125, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.078125 = fieldNorm(doc=125)
          0.25686795 = weight(abstract_txt:journal in 125) [ClassicSimilarity], result of:
            0.25686795 = score(doc=125,freq=6.0), product of:
              0.25907776 = queryWeight, product of:
                4.335038 = boost
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.011535146 = queryNorm
              0.99147046 = fieldWeight in 125, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.078125 = fieldNorm(doc=125)
          0.6781308 = weight(abstract_txt:yield in 125) [ClassicSimilarity], result of:
            0.6781308 = score(doc=125,freq=4.0), product of:
              0.5963646 = queryWeight, product of:
                7.104069 = boost
                7.277489 = idf(docFreq=79, maxDocs=42596)
                0.011535146 = queryNorm
              1.1371077 = fieldWeight in 125, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.277489 = idf(docFreq=79, maxDocs=42596)
                0.078125 = fieldNorm(doc=125)
        0.24 = coord(6/25)
    
  2. Didegah, F.; Thelwall, M.: Determinants of research citation impact in nanoscience and nanotechnology (2013) 0.20
    0.2028682 = sum of:
      0.2028682 = product of:
        0.56352276 = sum of:
          0.04634021 = weight(abstract_txt:periods in 1738) [ClassicSimilarity], result of:
            0.04634021 = score(doc=1738,freq=1.0), product of:
              0.08271714 = queryWeight, product of:
                7.1708794 = idf(docFreq=88, maxDocs=42596)
                0.011535146 = queryNorm
              0.56022495 = fieldWeight in 1738, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1708794 = idf(docFreq=88, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.015011867 = weight(abstract_txt:science in 1738) [ClassicSimilarity], result of:
            0.015011867 = score(doc=1738,freq=1.0), product of:
              0.049157526 = queryWeight, product of:
                1.0902152 = boost
                3.908901 = idf(docFreq=2322, maxDocs=42596)
                0.011535146 = queryNorm
              0.30538288 = fieldWeight in 1738, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.908901 = idf(docFreq=2322, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.060276512 = weight(abstract_txt:journals in 1738) [ClassicSimilarity], result of:
            0.060276512 = score(doc=1738,freq=3.0), product of:
              0.08610437 = queryWeight, product of:
                1.4428787 = boost
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.011535146 = queryNorm
              0.7000401 = fieldWeight in 1738, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.09835244 = weight(abstract_txt:references in 1738) [ClassicSimilarity], result of:
            0.09835244 = score(doc=1738,freq=5.0), product of:
              0.100654595 = queryWeight, product of:
                1.5600339 = boost
                5.5934076 = idf(docFreq=430, maxDocs=42596)
                0.011535146 = queryNorm
              0.97712815 = fieldWeight in 1738, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.5934076 = idf(docFreq=430, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.045232166 = weight(abstract_txt:period in 1738) [ClassicSimilarity], result of:
            0.045232166 = score(doc=1738,freq=1.0), product of:
              0.10254908 = queryWeight, product of:
                1.5746467 = boost
                5.6458006 = idf(docFreq=408, maxDocs=42596)
                0.011535146 = queryNorm
              0.4410782 = fieldWeight in 1738, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6458006 = idf(docFreq=408, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.037417162 = weight(abstract_txt:number in 1738) [ClassicSimilarity], result of:
            0.037417162 = score(doc=1738,freq=2.0), product of:
              0.08210467 = queryWeight, product of:
                1.7256265 = boost
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.011535146 = queryNorm
              0.45572513 = fieldWeight in 1738, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.021063894 = weight(abstract_txt:study in 1738) [ClassicSimilarity], result of:
            0.021063894 = score(doc=1738,freq=1.0), product of:
              0.077625185 = queryWeight, product of:
                1.9374636 = boost
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.011535146 = queryNorm
              0.27135387 = fieldWeight in 1738, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.058195435 = weight(abstract_txt:citations in 1738) [ClassicSimilarity], result of:
            0.058195435 = score(doc=1738,freq=1.0), product of:
              0.13886407 = queryWeight, product of:
                2.2441807 = boost
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.011535146 = queryNorm
              0.41908202 = fieldWeight in 1738, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
          0.18163306 = weight(abstract_txt:journal in 1738) [ClassicSimilarity], result of:
            0.18163306 = score(doc=1738,freq=3.0), product of:
              0.25907776 = queryWeight, product of:
                4.335038 = boost
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.011535146 = queryNorm
              0.70107543 = fieldWeight in 1738, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.078125 = fieldNorm(doc=1738)
        0.36 = coord(9/25)
    
  3. Nebelong-Bonnevie, E.; Frandsen, T.F.: Journal citation identity and journal citation image : a portrait of the Journal of Documentation (2006) 0.20
    0.19571741 = sum of:
      0.19571741 = product of:
        0.6116169 = sum of:
          0.03937245 = weight(abstract_txt:journals in 587) [ClassicSimilarity], result of:
            0.03937245 = score(doc=587,freq=2.0), product of:
              0.08610437 = queryWeight, product of:
                1.4428787 = boost
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.011535146 = queryNorm
              0.45726424 = fieldWeight in 587, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.035187636 = weight(abstract_txt:references in 587) [ClassicSimilarity], result of:
            0.035187636 = score(doc=587,freq=1.0), product of:
              0.100654595 = queryWeight, product of:
                1.5600339 = boost
                5.5934076 = idf(docFreq=430, maxDocs=42596)
                0.011535146 = queryNorm
              0.34958798 = fieldWeight in 587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5934076 = idf(docFreq=430, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.089875415 = weight(abstract_txt:indicators in 587) [ClassicSimilarity], result of:
            0.089875415 = score(doc=587,freq=4.0), product of:
              0.11848067 = queryWeight, product of:
                1.6925479 = boost
                6.0685287 = idf(docFreq=267, maxDocs=42596)
                0.011535146 = queryNorm
              0.7585661 = fieldWeight in 587, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.0685287 = idf(docFreq=267, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.021166341 = weight(abstract_txt:number in 587) [ClassicSimilarity], result of:
            0.021166341 = score(doc=587,freq=1.0), product of:
              0.08210467 = queryWeight, product of:
                1.7256265 = boost
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.011535146 = queryNorm
              0.25779706 = fieldWeight in 587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.023831077 = weight(abstract_txt:study in 587) [ClassicSimilarity], result of:
            0.023831077 = score(doc=587,freq=2.0), product of:
              0.077625185 = queryWeight, product of:
                1.9374636 = boost
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.011535146 = queryNorm
              0.30700186 = fieldWeight in 587, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.077104464 = weight(abstract_txt:visible in 587) [ClassicSimilarity], result of:
            0.077104464 = score(doc=587,freq=1.0), product of:
              0.16980869 = queryWeight, product of:
                2.0262694 = boost
                7.2650666 = idf(docFreq=80, maxDocs=42596)
                0.011535146 = queryNorm
              0.45406666 = fieldWeight in 587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2650666 = idf(docFreq=80, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.034466617 = weight(abstract_txt:nature in 587) [ClassicSimilarity], result of:
            0.034466617 = score(doc=587,freq=1.0), product of:
              0.11364136 = queryWeight, product of:
                2.0301638 = boost
                4.8526864 = idf(docFreq=903, maxDocs=42596)
                0.011535146 = queryNorm
              0.3032929 = fieldWeight in 587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8526864 = idf(docFreq=903, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
          0.29061288 = weight(abstract_txt:journal in 587) [ClassicSimilarity], result of:
            0.29061288 = score(doc=587,freq=12.0), product of:
              0.25907776 = queryWeight, product of:
                4.335038 = boost
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.011535146 = queryNorm
              1.1217207 = fieldWeight in 587, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.0625 = fieldNorm(doc=587)
        0.32 = coord(8/25)
    
  4. Vinkler, P.: Characterization of the impact of sets of scientific papers : the Garfield (impact) Factor (2004) 0.18
    0.17954174 = sum of:
      0.17954174 = product of:
        0.56106794 = sum of:
          0.035798434 = weight(abstract_txt:factors in 3228) [ClassicSimilarity], result of:
            0.035798434 = score(doc=3228,freq=2.0), product of:
              0.08081145 = queryWeight, product of:
                1.3978279 = boost
                5.0118275 = idf(docFreq=770, maxDocs=42596)
                0.011535146 = queryNorm
              0.44298714 = fieldWeight in 3228, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.0118275 = idf(docFreq=770, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.0787449 = weight(abstract_txt:journals in 3228) [ClassicSimilarity], result of:
            0.0787449 = score(doc=3228,freq=8.0), product of:
              0.08610437 = queryWeight, product of:
                1.4428787 = boost
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.011535146 = queryNorm
              0.9145285 = fieldWeight in 3228, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.035187636 = weight(abstract_txt:references in 3228) [ClassicSimilarity], result of:
            0.035187636 = score(doc=3228,freq=1.0), product of:
              0.100654595 = queryWeight, product of:
                1.5600339 = boost
                5.5934076 = idf(docFreq=430, maxDocs=42596)
                0.011535146 = queryNorm
              0.34958798 = fieldWeight in 3228, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5934076 = idf(docFreq=430, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.05117435 = weight(abstract_txt:period in 3228) [ClassicSimilarity], result of:
            0.05117435 = score(doc=3228,freq=2.0), product of:
              0.10254908 = queryWeight, product of:
                1.5746467 = boost
                5.6458006 = idf(docFreq=408, maxDocs=42596)
                0.011535146 = queryNorm
              0.499023 = fieldWeight in 3228, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.6458006 = idf(docFreq=408, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.089875415 = weight(abstract_txt:indicators in 3228) [ClassicSimilarity], result of:
            0.089875415 = score(doc=3228,freq=4.0), product of:
              0.11848067 = queryWeight, product of:
                1.6925479 = boost
                6.0685287 = idf(docFreq=267, maxDocs=42596)
                0.011535146 = queryNorm
              0.7585661 = fieldWeight in 3228, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.0685287 = idf(docFreq=267, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.03666118 = weight(abstract_txt:number in 3228) [ClassicSimilarity], result of:
            0.03666118 = score(doc=3228,freq=3.0), product of:
              0.08210467 = queryWeight, product of:
                1.7256265 = boost
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.011535146 = queryNorm
              0.44651762 = fieldWeight in 3228, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.06584062 = weight(abstract_txt:citations in 3228) [ClassicSimilarity], result of:
            0.06584062 = score(doc=3228,freq=2.0), product of:
              0.13886407 = queryWeight, product of:
                2.2441807 = boost
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.011535146 = queryNorm
              0.47413716 = fieldWeight in 3228, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
          0.16778542 = weight(abstract_txt:journal in 3228) [ClassicSimilarity], result of:
            0.16778542 = score(doc=3228,freq=4.0), product of:
              0.25907776 = queryWeight, product of:
                4.335038 = boost
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.011535146 = queryNorm
              0.64762574 = fieldWeight in 3228, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.0625 = fieldNorm(doc=3228)
        0.32 = coord(8/25)
    
  5. Schloegl, C.; Gorraiz, J.: Global usage versus global citation metrics : the case of pharmacology journals (2011) 0.18
    0.17691238 = sum of:
      0.17691238 = product of:
        0.49142325 = sum of:
          0.010508307 = weight(abstract_txt:science in 142) [ClassicSimilarity], result of:
            0.010508307 = score(doc=142,freq=1.0), product of:
              0.049157526 = queryWeight, product of:
                1.0902152 = boost
                3.908901 = idf(docFreq=2322, maxDocs=42596)
                0.011535146 = queryNorm
              0.21376802 = fieldWeight in 142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.908901 = idf(docFreq=2322, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.022149151 = weight(abstract_txt:factors in 142) [ClassicSimilarity], result of:
            0.022149151 = score(doc=142,freq=1.0), product of:
              0.08081145 = queryWeight, product of:
                1.3978279 = boost
                5.0118275 = idf(docFreq=770, maxDocs=42596)
                0.011535146 = queryNorm
              0.27408433 = fieldWeight in 142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0118275 = idf(docFreq=770, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.064451724 = weight(abstract_txt:journals in 142) [ClassicSimilarity], result of:
            0.064451724 = score(doc=142,freq=7.0), product of:
              0.08610437 = queryWeight, product of:
                1.4428787 = boost
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.011535146 = queryNorm
              0.7485302 = fieldWeight in 142, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.1733546 = idf(docFreq=655, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.031662513 = weight(abstract_txt:period in 142) [ClassicSimilarity], result of:
            0.031662513 = score(doc=142,freq=1.0), product of:
              0.10254908 = queryWeight, product of:
                1.5746467 = boost
                5.6458006 = idf(docFreq=408, maxDocs=42596)
                0.011535146 = queryNorm
              0.3087547 = fieldWeight in 142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6458006 = idf(docFreq=408, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.068105094 = weight(abstract_txt:indicators in 142) [ClassicSimilarity], result of:
            0.068105094 = score(doc=142,freq=3.0), product of:
              0.11848067 = queryWeight, product of:
                1.6925479 = boost
                6.0685287 = idf(docFreq=267, maxDocs=42596)
                0.011535146 = queryNorm
              0.5748203 = fieldWeight in 142, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.0685287 = idf(docFreq=267, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.01852055 = weight(abstract_txt:number in 142) [ClassicSimilarity], result of:
            0.01852055 = score(doc=142,freq=1.0), product of:
              0.08210467 = queryWeight, product of:
                1.7256265 = boost
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.011535146 = queryNorm
              0.22557244 = fieldWeight in 142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.124753 = idf(docFreq=1871, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.014744726 = weight(abstract_txt:study in 142) [ClassicSimilarity], result of:
            0.014744726 = score(doc=142,freq=1.0), product of:
              0.077625185 = queryWeight, product of:
                1.9374636 = boost
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.011535146 = queryNorm
              0.18994771 = fieldWeight in 142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4733295 = idf(docFreq=3590, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.081473604 = weight(abstract_txt:citations in 142) [ClassicSimilarity], result of:
            0.081473604 = score(doc=142,freq=4.0), product of:
              0.13886407 = queryWeight, product of:
                2.2441807 = boost
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.011535146 = queryNorm
              0.5867148 = fieldWeight in 142, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.3642497 = idf(docFreq=541, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
          0.17980756 = weight(abstract_txt:journal in 142) [ClassicSimilarity], result of:
            0.17980756 = score(doc=142,freq=6.0), product of:
              0.25907776 = queryWeight, product of:
                4.335038 = boost
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.011535146 = queryNorm
              0.69402933 = fieldWeight in 142, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.181006 = idf(docFreq=650, maxDocs=42596)
                0.0546875 = fieldNorm(doc=142)
        0.36 = coord(9/25)