Document (#27515)

Author
Nourmohammadi, H.A.
Umstätter, W.
Title
¬Die Verteilung der Autorenhäufigkeit in wissenschaftlichen Zeitschriften bei verschiedenen Themen und Ländern
Source
Information - Wissenschaft und Praxis. 55(2004) H.5, S.275-281
Year
2004
Abstract
Untersucht man die Verteilung der Autorenhäufigkeit in wissenschaftlichen Zeitschriften, hier kurz Journals Author Distri-bution (JAD) genannt indem man über mehrere Jahre die Verteilung der Häufigkeit prüft wie viele Autoren einmal, zweimal, dreimal etc. in dieser Zeitschrift erschienen, so zeigen sich charakteristische Verteilungen, die den allgemeinen Potenzgesetzen (power laws) folgen. Diese Verteilungen können als Typologie der speziellen Journale verwendet werden. Wie der Impact Factor, der Immediacy Factor oder die Halbwertzeit ist die JAD zur Kategorisierung einer Zeitschrift nützlich. Auffallend ist dabei, dass zwei Parameter, der Beginn der hyperbolischen Funktion und die Potenz in einem eher konstanten Verhältnis stehen. Den Konsequenzen dieser Beobachtung wird hier nachgegangen.
Theme
Informetrie

Similar documents (author)

  1. Umstätter, W.: Was verändert die Informationstechnologie in den Universitätsbibliotheken? (1989) 5.02 
    5.023691 = sum of:
  5.023691 = weight(author_txt:umstätter in 877) [ClassicSimilarity], result of:
    5.023691 = fieldWeight in 877, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.037906 = idf(docFreq=38, maxDocs=44421)
      0.625 = fieldNorm(doc=877)
  2. Umstätter, W.: Wäre es nicht langsam Zeit, die Informationstechnologie in der bibliothekarischen Sacherschließung etwas erster zu nehmen? : ein Wort zur RSWK (1991) 5.02 
    5.023691 = sum of:
  5.023691 = weight(author_txt:umstätter in 1488) [ClassicSimilarity], result of:
    5.023691 = fieldWeight in 1488, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.037906 = idf(docFreq=38, maxDocs=44421)
      0.625 = fieldNorm(doc=1488)
  3. Umstätter, W.: Freitext oder kontrolliertes Vokabular : was ist besser? (1983) 5.02 
    5.023691 = sum of:
  5.023691 = weight(author_txt:umstätter in 2034) [ClassicSimilarity], result of:
    5.023691 = fieldWeight in 2034, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.037906 = idf(docFreq=38, maxDocs=44421)
      0.625 = fieldNorm(doc=2034)
  4. Umstätter, W.: ¬Die Kunst der Frage (1993) 5.02 
    5.023691 = sum of:
  5.023691 = weight(author_txt:umstätter in 5069) [ClassicSimilarity], result of:
    5.023691 = fieldWeight in 5069, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.037906 = idf(docFreq=38, maxDocs=44421)
      0.625 = fieldNorm(doc=5069)
  5. Umstätter, W.: Probleme, Möglichkeiten und Konsequenzen des Einsatzes von Scannern in Bibliotheken (1991) 5.02 
    5.023691 = sum of:
  5.023691 = weight(author_txt:umstätter in 5424) [ClassicSimilarity], result of:
    5.023691 = fieldWeight in 5424, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.037906 = idf(docFreq=38, maxDocs=44421)
      0.625 = fieldNorm(doc=5424)

Similar documents (content)

  1. Tavakolizadeh-Ravari, M.: Analysis of the long term dynamics in thesaurus developments and its consequences (2017) 0.18 
    0.17509328 = sum of:
  0.17509328 = product of:
    0.72955537 = sum of:
      0.04870884 = weight(abstract_txt:konsequenzen in 4081) [ClassicSimilarity], result of:
        0.04870884 = score(doc=4081,freq=1.0), product of:
          0.12497633 = queryWeight, product of:
            7.1267567 = idf(docFreq=96, maxDocs=44421)
            0.017536214 = queryNorm
          0.38974452 = fieldWeight in 4081, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.1267567 = idf(docFreq=96, maxDocs=44421)
            0.0546875 = fieldNorm(doc=4081)
      0.05388454 = weight(abstract_txt:verhältnis in 4081) [ClassicSimilarity], result of:
        0.05388454 = score(doc=4081,freq=1.0), product of:
          0.13367967 = queryWeight, product of:
            1.034234 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.017536214 = queryNorm
          0.40308702 = fieldWeight in 4081, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.0546875 = fieldNorm(doc=4081)
      0.05247882 = weight(abstract_txt:factor in 4081) [ClassicSimilarity], result of:
        0.05247882 = score(doc=4081,freq=1.0), product of:
          0.16548373 = queryWeight, product of:
            1.6273417 = boost
            5.7988343 = idf(docFreq=365, maxDocs=44421)
            0.017536214 = queryNorm
          0.31712374 = fieldWeight in 4081, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7988343 = idf(docFreq=365, maxDocs=44421)
            0.0546875 = fieldNorm(doc=4081)
      0.1491666 = weight(abstract_txt:zeitschriften in 4081) [ClassicSimilarity], result of:
        0.1491666 = score(doc=4081,freq=4.0), product of:
          0.20918329 = queryWeight, product of:
            1.8296356 = boost
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.017536214 = queryNorm
          0.7130904 = fieldWeight in 4081, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.0546875 = fieldNorm(doc=4081)
      0.11339278 = weight(abstract_txt:zeitschrift in 4081) [ClassicSimilarity], result of:
        0.11339278 = score(doc=4081,freq=1.0), product of:
          0.27658132 = queryWeight, product of:
            2.1038392 = boost
            7.496775 = idf(docFreq=66, maxDocs=44421)
            0.017536214 = queryNorm
          0.40997988 = fieldWeight in 4081, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.496775 = idf(docFreq=66, maxDocs=44421)
            0.0546875 = fieldNorm(doc=4081)
      0.31192383 = weight(abstract_txt:verteilung in 4081) [ClassicSimilarity], result of:
        0.31192383 = score(doc=4081,freq=2.0), product of:
          0.4933465 = queryWeight, product of:
            3.441302 = boost
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.017536214 = queryNorm
          0.63226116 = fieldWeight in 4081, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.0546875 = fieldNorm(doc=4081)
    0.24 = coord(6/25)
  2. 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) 0.11 
    0.10555036 = sum of:
  0.10555036 = product of:
    0.6596898 = sum of:
      0.20030563 = weight(abstract_txt:häufigkeit in 2075) [ClassicSimilarity], result of:
        0.20030563 = score(doc=2075,freq=1.0), product of:
          0.20208372 = queryWeight, product of:
            1.2716037 = boost
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.017536214 = queryNorm
          0.99120116 = fieldWeight in 2075, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.109375 = fieldNorm(doc=2075)
      0.20525993 = weight(abstract_txt:journale in 2075) [ClassicSimilarity], result of:
        0.20525993 = score(doc=2075,freq=1.0), product of:
          0.20540234 = queryWeight, product of:
            1.2820023 = boost
            9.1365185 = idf(docFreq=12, maxDocs=44421)
            0.017536214 = queryNorm
          0.9993067 = fieldWeight in 2075, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.1365185 = idf(docFreq=12, maxDocs=44421)
            0.109375 = fieldNorm(doc=2075)
      0.10495764 = weight(abstract_txt:factor in 2075) [ClassicSimilarity], result of:
        0.10495764 = score(doc=2075,freq=1.0), product of:
          0.16548373 = queryWeight, product of:
            1.6273417 = boost
            5.7988343 = idf(docFreq=365, maxDocs=44421)
            0.017536214 = queryNorm
          0.6342475 = fieldWeight in 2075, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7988343 = idf(docFreq=365, maxDocs=44421)
            0.109375 = fieldNorm(doc=2075)
      0.1491666 = weight(abstract_txt:zeitschriften in 2075) [ClassicSimilarity], result of:
        0.1491666 = score(doc=2075,freq=1.0), product of:
          0.20918329 = queryWeight, product of:
            1.8296356 = boost
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.017536214 = queryNorm
          0.7130904 = fieldWeight in 2075, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.109375 = fieldNorm(doc=2075)
    0.16 = coord(4/25)
  3. Gorraiz, J.; Schlögl, C.: Zusammenhang von Zeitschriftennachfrage und -zitationshäufigkeiten : ¬Eine bibliometrische Analyse eines Dokumentlieferdienstes am Beispiel von Subito (2003) 0.09 
    0.0911368 = sum of:
  0.0911368 = product of:
    0.569605 = sum of:
      0.11571284 = weight(abstract_txt:nachgegangen in 1718) [ClassicSimilarity], result of:
        0.11571284 = score(doc=1718,freq=1.0), product of:
          0.1754186 = queryWeight, product of:
            1.1847425 = boost
            8.443371 = idf(docFreq=25, maxDocs=44421)
            0.017536214 = queryNorm
          0.65963835 = fieldWeight in 1718, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.443371 = idf(docFreq=25, maxDocs=44421)
            0.078125 = fieldNorm(doc=1718)
      0.032253966 = weight(abstract_txt:dieser in 1718) [ClassicSimilarity], result of:
        0.032253966 = score(doc=1718,freq=1.0), product of:
          0.094309054 = queryWeight, product of:
            1.2285075 = boost
            4.377637 = idf(docFreq=1515, maxDocs=44421)
            0.017536214 = queryNorm
          0.34200287 = fieldWeight in 1718, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.377637 = idf(docFreq=1515, maxDocs=44421)
            0.078125 = fieldNorm(doc=1718)
      0.10654757 = weight(abstract_txt:zeitschriften in 1718) [ClassicSimilarity], result of:
        0.10654757 = score(doc=1718,freq=1.0), product of:
          0.20918329 = queryWeight, product of:
            1.8296356 = boost
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.017536214 = queryNorm
          0.5093503 = fieldWeight in 1718, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.078125 = fieldNorm(doc=1718)
      0.31509066 = weight(abstract_txt:verteilung in 1718) [ClassicSimilarity], result of:
        0.31509066 = score(doc=1718,freq=1.0), product of:
          0.4933465 = queryWeight, product of:
            3.441302 = boost
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.017536214 = queryNorm
          0.6386802 = fieldWeight in 1718, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.078125 = fieldNorm(doc=1718)
    0.16 = coord(4/25)
  4. Mayr, P.; Umstätter, W.: ¬Eine bibliometrische Zeitschriftenanalyse mit Jol Scientrometrics und NfD bzw. IWP (2008) 0.09 
    0.089446545 = sum of:
  0.089446545 = product of:
    0.7453879 = sum of:
      0.0923735 = weight(abstract_txt:verhältnis in 3302) [ClassicSimilarity], result of:
        0.0923735 = score(doc=3302,freq=1.0), product of:
          0.13367967 = queryWeight, product of:
            1.034234 = boost
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.017536214 = queryNorm
          0.6910063 = fieldWeight in 3302, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.370734 = idf(docFreq=75, maxDocs=44421)
            0.09375 = fieldNorm(doc=3302)
      0.27490562 = weight(abstract_txt:zeitschrift in 3302) [ClassicSimilarity], result of:
        0.27490562 = score(doc=3302,freq=2.0), product of:
          0.27658132 = queryWeight, product of:
            2.1038392 = boost
            7.496775 = idf(docFreq=66, maxDocs=44421)
            0.017536214 = queryNorm
          0.99394137 = fieldWeight in 3302, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.496775 = idf(docFreq=66, maxDocs=44421)
            0.09375 = fieldNorm(doc=3302)
      0.3781088 = weight(abstract_txt:verteilung in 3302) [ClassicSimilarity], result of:
        0.3781088 = score(doc=3302,freq=1.0), product of:
          0.4933465 = queryWeight, product of:
            3.441302 = boost
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.017536214 = queryNorm
          0.7664163 = fieldWeight in 3302, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.09375 = fieldNorm(doc=3302)
    0.12 = coord(3/25)
  5. Stock, W.G.: Journal Citation Reports : Ein Impact Factor für Bibliotheken, Verlage und Autoren? (2001) 0.08 
    0.08454393 = sum of:
  0.08454393 = product of:
    0.5283996 = sum of:
      0.105199516 = weight(abstract_txt:immediacy in 6915) [ClassicSimilarity], result of:
        0.105199516 = score(doc=6915,freq=1.0), product of:
          0.19103096 = queryWeight, product of:
            1.2363403 = boost
            8.811096 = idf(docFreq=17, maxDocs=44421)
            0.017536214 = queryNorm
          0.5506935 = fieldWeight in 6915, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.811096 = idf(docFreq=17, maxDocs=44421)
            0.0625 = fieldNorm(doc=6915)
      0.08481859 = weight(abstract_txt:factor in 6915) [ClassicSimilarity], result of:
        0.08481859 = score(doc=6915,freq=2.0), product of:
          0.16548373 = queryWeight, product of:
            1.6273417 = boost
            5.7988343 = idf(docFreq=365, maxDocs=44421)
            0.017536214 = queryNorm
          0.5125494 = fieldWeight in 6915, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.7988343 = idf(docFreq=365, maxDocs=44421)
            0.0625 = fieldNorm(doc=6915)
      0.20878975 = weight(abstract_txt:zeitschriften in 6915) [ClassicSimilarity], result of:
        0.20878975 = score(doc=6915,freq=6.0), product of:
          0.20918329 = queryWeight, product of:
            1.8296356 = boost
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.017536214 = queryNorm
          0.9981187 = fieldWeight in 6915, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.0625 = fieldNorm(doc=6915)
      0.12959175 = weight(abstract_txt:zeitschrift in 6915) [ClassicSimilarity], result of:
        0.12959175 = score(doc=6915,freq=1.0), product of:
          0.27658132 = queryWeight, product of:
            2.1038392 = boost
            7.496775 = idf(docFreq=66, maxDocs=44421)
            0.017536214 = queryNorm
          0.46854845 = fieldWeight in 6915, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.496775 = idf(docFreq=66, maxDocs=44421)
            0.0625 = fieldNorm(doc=6915)
    0.16 = coord(4/25)