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  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Bar-Ilan, J.: ¬The Web as an information source on informetrics? : A content analysis (2000) 0.01 
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  2. Schlögl, C.; Gorraiz, J.; Bart, C.; Bargmann, M.: Messen und gemessen werden : Möglichkeiten und Grenzen quantitativer Forschungsevaluierungen am Beispiel eines Institutsvergleichs (2001) 0.01 
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  3. Gorraiz, J.; Schlögl, C.: Zusammenhang von Zeitschriftennachfrage und -zitationshäufigkeiten : ¬Eine bibliometrische Analyse eines Dokumentlieferdienstes am Beispiel von Subito (2003) 0.01 
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  4. Eijk, C.C. van der; Mulligen, E.M. van; Kors, J.A.; Mons, B.; Berg, J. van den: Constructing an associative concept space for literature-based discovery (2004) 0.01 
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  5. Borgman, C.L.; Furner, J.: Scholarly communication and bibliometrics (2002) 0.01 
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  6. Meadows, J.: ¬The immediacy effect - then and now (2004) 0.01 
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  7. Jacobs, N.; Woodfield, J.; Morris, A.: Using local citation data to relate the use of journal articles by academic researchers to the coverage of full-text document access systems (2000) 0.01 
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  8. Leydesdorff, L.; Bihui, J.: Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations (2005) 0.01 
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  9. Newby, G.B.; Greenberg, J.; Jones, P.: Open source software development and Lotka's law : bibliometric patterns in programming (2003) 0.01 
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  10. Szava-Kovats, E.: Unfounded attribution of the "half-life'' index-number of literature obsolescence to Burton and Kebler : a literature science study (2002) 0.01 
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    Abstract
    Szava-Kovats demonstrates that the common attribution of the origin of the concept of half-life in subject-oriented journal literatures to the 1960 Burton and Kebler article in American Documentation is not correct. The first use appears to be in C. R. Gosnell's 1944 paper in College and Research Libraries. It was later discussed by J. D. Bernal at the 1958 International Conference on Scientific Information in Washington, DC. While Burton and Kebler do solve some of the theoretical problems by redefining half-life, they do not express confidence in the use of half-life in this milieu, and Burton later advocates in 1961 the term ``median age'' which was introduced by Broadus in this context in 1953.
  11. Bar-Ilan, J.; Peritz, B.C.: Informetric theories and methods for exploring the Internet : an analytical survey of recent research literature (2002) 0.01 
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  12. Nicolaisen, J.; Hjoerland, B.: Practical potentials of Bradford's law : a critical examination of the received view (2007) 0.01 
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  13. Janssens, F.; Leta, J.; Glänzel, W.; Moor, B. de: Towards mapping library and information science (2006) 0.01 
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  14. Lin, X.; White, H.D.; Buzydlowski, J.: Real-time author co-citation mapping for online searching (2003) 0.01 
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  15. Ding, Y.; Yan, E.; Frazho, A.; Caverlee, J.: PageRank for ranking authors in co-citation networks (2009) 0.01 
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  16. Bar-Ilan, J.: Informetrics (2009) 0.01 
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  17. Umstätter, W.: Szientometrische Verfahren (2004) 0.01 
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    Abstract
    Die Szientometrie beschäftigt sich mit der Messbarkeit wissenschaftlicher Leistungen anhand bibliothekarisch nachweisbarer Publikationsergebnisse. Bei genauer Betrachtung ist es ihr Ziel, die Wissenszunahme der Wissenschaft zu messen. Die wissenschaftliche Produktion in Form von Publikationen wächst seit über dreihundert Jahren konstant mit ca. 3,5% pro Jahr. Das entspricht einerVerdopplungsrate von 20 Jahren, die zuerst dem Bibliothekar Fremont Rider 1948 bei Büchern auffiel und die 1963 von Derek J. de Solla Price auch für das Wachstum von Zeitschriften und Bibliografien bestätigt wurde. Die Konstanz dieser Evolution, unabhängig aller sich ereignenden Katastrophen, ist nur zum Teil verstanden, macht aber den unaufhaltsamen Fortschritt der Wissenschaft deutlich. Alle 20 Jahre wird so viel publiziert wie in allen Jahrhunderten davor. Eine etwa gleiche Zunahme verzeichnen die Wissenschaftler, die damit etwa gleich produktiv bleiben. Von ihnen allen sind damit ca. 87% unsere heutigen Zeitgenossen. Aus diesem Wachstum heraus können wir abschätzen, dass in 100.000 laufenden Zeitschriften heute etwa 10 Mio. Publikationen jährlich erscheinen, die von 10 Mio. Wissenschaftlern verfasst werden. Dabei definieren sich nur die als Wissenschaftler, die durchschnittlich eine Publikation jährlich verfassen. Die gesamte Produktion an Buchtiteln, die bisher erschien, dürfte bei etwa 100 Mio. liegen. Davon sind etwa 20 Mio. als wissenschaftlich einzustufen. Wenn folglich 87% aller Wissenschaftler noch heute leben, so betrug die Gesamtzahl der Wissenschaftler in der Welt bisher 11,5 Mio., die in ihrem Leben durchschnittlich 1,5 Bücher pro Kopf verfassten, und etwa das 10-20fache an Zeitschriftenbeiträgen leisteten. Ein Teil dieser Bücher sind allerdings Neuauflagen und Übersetzungen. Nach Lotka, A. J. ist die Produktivität der Wissenschaftler eine schiefe Verteilung von der Form A/n**2, wobei A die Zahl der Autoren mit nur einer Publikation ist und n die Publikationen pro Autor. Während Price in seinen "Networks of Scientific Papers" Vergleichswerte von n**2,5 bis n**3 angab, zeigten Untersuchungen am Science Citation Index (SCI), die auf die gesamte naturwissenschaftliche Literatur hochgerechnet wurden, eher einen Wert von n**1,7. Auf die Tatsache, dass eine Verdopplungsrate der Wissenschaftler von 20 Jahren und eine solche der Menschheit von etwa 50 Jahren dazu führt, dass eines Tages alle Menschen Wissenschaftler werden, hat Price bereits 1963 hingewiesen. Dieser Zustand müsste bei 10 Mio. Wissenschaftlern und 6 Mrd. Menschen in etwa 300 Jahren eintreten, ein nur scheinbar absurder Gedanke, wenn man bedenkt, dass man sich vor 300 Jahren auch kaum vorstellen konnte, dass alle Menschen Lesen, Schreiben und Rechnen lernen können, und dass wir uns ungebildete Menschen immer weniger leisten können.
  18. Doré, J.-C.; Ojasoo, T.: How to analyze publication time trends by correspondece factor analysis : analysis of publications by 48 countries in 18 disciplines over 12 years (2001) 0.01 
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  19. Kracker, J.; Pollio, H.R.: ¬The experience of libraries across time : thematic analysis of undergraduate recollections of library experiences (2003) 0.01 
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  20. Hjoerland, B.; Nicolaisen, J.: Bradford's law of scattering : ambiguities in the concept of "subject" (2005) 0.01 
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