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  • × theme_ss:"Biographische Darstellungen"
  1. Albrecht, C.: ¬Die Entdeckung der Weitschweifigkeit : Über das Glück, mit Markow-Ketten zu rasseln: Die Schriften Claude E. Shannons (2001) 0.02 
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    Abstract
    Der entscheidende Aspekt in Shannons mathematischer Theorie der Kommunikation ist, "daß die tatsächliche Nachricht aus einem Vorrat von möglichen Nachrichten ausgewählt wurde". Ahnlich in der binären Logik des Fernsehquiz': Hier wählen die Ratenden aus einer endlichen Zahl beruflicher Lebenswelten, die gleichsam durch sogenannte "typische Handbewegungen" in diskrete Einheiten zerhackt werden. Mathematik und Unterhaltung kommen dabei in einem überein: in der Bedeutungslosigkeit. Shannons Modell abstrahiert davon, ob Nachrichten "Bedeutung" haben, also sich "auf bestimmte physikalische oder begriffliche Größen" beziehen. Ihn interessiert nur, ob und wie die Informationen im gegebenen Kanal störungsfrei übertragen werden können. Die Unterhaltungsindustrie wiederum, deren binäre Logik auf der Unterscheidung zwischen dem Interessanten und dem Langweiligen beruht, kümmert sich nicht darum, ob sich die generierte Information auf wirtschaftliche oder politische Größen bezieht. Sie interessiert nur, ob der Fernseher eingeschaltet bleibt. Entscheidend ist für Shannon der Aspekt der Auswahl etwa aus Buchstaben eines Alphabets, weil damit die Statistik zum Zug kommen kann. Damit läßt sich beispielsweise der Informationsgehalt der deutschen Schriftsprache messen. Nimmt man an, daß alle 30 Zeichen (29 Buchstaben plus Leerzeichen) gleich verteilt sind, ergibt sich ein Informationsgehalt von 4,9 bit. In Wirklichkeit ist jedoch die Wahrscheinlichkeit für die Wahl der verschiedenen Buchstaben, Silben und Wörter in einer natürlichen Sprache in jedem Stadium des Prozesses von der vorhergegangenen Auswahl abhängig. Einen solchen Prozeß bezeichnet die Wahrscheinlichkeitstheorie als Markow-Prozeß oder Markow-Kette. Berücksichtigt man also die Wahrscheinlichkeitsverteilung von Buchstabenfolgen, so erhält man einen viel kleineren mittleren Informationsgehalt der deutschen Schriftsprache, nämlich 1,6 bit.
  2. Panizzi, A.K.C.B.: Passages in my official life (1871) 0.01 
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    Date
    22. 7.2007 12:05:26
    22. 7.2007 12:08:24
  3. Bell, H.: Personalities in publishing : Hans Wellisch (1998) 0.01 
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    Source
    Journal of scholarly publishing. 29(1998) no.4, S.227-230
  4. Schön, J.: Zum Gedenken an Paul Otlet : 1868-1944 (1968) 0.01 
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    Source
    DK-Mitteilungen. 13(1968) Nr.6, S.21-22
  5. Guedj, D.: Nicholas Bourbaki, collective mathematician : an interview with Clause Chevalley (1985) 0.01 
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    Source
    Mathematical intelligencer. 7(1985), S.18-22
  6. Knorz, G.: Nachruf für Gerhard Lustig (1993) 0.01 
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    Date
    22. 1.2016 19:11:37
  7. Gopinath, M.A.: Summary of the work and acievements of Dr. S.R. Ranganathan (1992) 0.01 
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    Source
    Library science with a slant to documentation. 29(1992) no.2, S.46-57
  8. Klaus, H.G.: Jan-Michael Czermak : 19 Jahre Fachinformationspolitik geprägt (2001) 0.01 
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    Date
    10.11.2001 21:29:00
  9. Carlyle, A.: ¬An interview with Martha M. Yee (2000) 0.01 
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    Source
    Cataloging and classification quarterly. 29(2000) no.3, S.5-19
  10. Senechal, M.: ¬The continuing silence of Bourbaki : an interview with Pierre Cartier, June 18, 1997 (1998) 0.01 
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    Source
    Mathematical intelligencer. 20(1998) no.1, S.22-28
  11. Schultz, U.: Descartes : Biografie (2001) 0.01 
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    Footnote
    Rez. in: FR, Nr.125 vom 31.5.2001, S.22 (S. Hanuschek)
  12. Tully, B.: John Metcalfe : librarian by accident, eccentric by nature, and democratic by instinct (1998) 0.01 
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    Source
    Australian academic and research libraries. 29(1998) no.1, S.42-50
  13. Robertson, S.; Tait, J.: In Memoriam Karen Sparck Jones (2007) 0.01 
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    Date
    26.12.2007 14:22:47
  14. Kumar, G.: S.R. Ranganathan : an intellectual biography (1992) 0.01 
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    Date
    5. 1.1999 16:31:29
  15. Dawson, J.W.: Kurt Gödel und die Grenzen der Logik (1999) 0.01 
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    Date
    31.12.1996 19:29:41
  16. Schechter, B.: Mein Geist ist offen : Die mathematischen Reisen des Paul Erdös (1999) 0.01 
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    Date
    19. 7.2002 22:02:18
  17. Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002) 0.01 
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    Password. 2002, H.6, S.22-25
  18. lyer, H.: Professional profile of Professor A. Neelameghan : excerpts from interview sessions (2006) 0.01 
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    Date
    29. 2.2008 18:10:29
  19. Singh, S.: Ranganathan and reference services (1992) 0.01 
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    CLIS observer. 9(1992) nos.1/2, S.16-22
  20. Satija, M.P.: Birth centenary literature on Ranganathan : a review (1993) 0.01 
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    Date
    5. 1.1999 16:27:22

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