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Concentration and diversity of availability and use in information systems: A positive reinforcement model

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  • Ronald Rousseau

Abstract

A mathematical model is proposed to explain the observed concentration (or diversity) in two distributions of nominal classes. We tentatively pose that the model is valid when: (1) there is a cause‐effect relationship between the items in the distributions under consideration; and (2) there is a positive reinforcement between the occurrence of items in the second and in the first distribution. © 1992 John Wiley & Sons, Inc.

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  • Ronald Rousseau, 1992. "Concentration and diversity of availability and use in information systems: A positive reinforcement model," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 43(5), pages 391-395, June.
    • Handle: RePEc:bla:jamest:v:43:y:1992:i:5:p:391-395
    DOI: 10.1002/(SICI)1097-4571(199206)43:53.0.CO;2-Q
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    Cited by:

    1. Qiuju Zhou & Ronald Rousseau & Liying Yang & Ting Yue & Guoliang Yang, 2012. "A general framework for describing diversity within systems and similarity between systems with applications in informetrics," Scientometrics, Springer;Akadémiai Kiadó, vol. 93(3), pages 787-812, December.
    2. Shengli Ren & Ronald Rousseau, 2002. "International visibility of Chinese scientific journals," Scientometrics, Springer;Akadémiai Kiadó, vol. 53(3), pages 389-405, March.
    3. Leo Egghe & Raf Guns & Ronald Rousseau, 2013. "Measuring co-authors’ contribution to an article’s visibility," Scientometrics, Springer;Akadémiai Kiadó, vol. 95(1), pages 55-67, April.
    4. Leo Egghe, 2004. "Positive reinforcement and 3-dimensional informetrics," Scientometrics, Springer;Akadémiai Kiadó, vol. 60(3), pages 497-509, August.
    5. Elias Sanz-Casado & Carlos García-Zorita & Ronald Rousseau, 2016. "Using h-cores to study the most-cited articles of the twenty-first century," Scientometrics, Springer;Akadémiai Kiadó, vol. 108(1), pages 243-261, July.

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