Results 181 to 190 of about 612 (197)
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Productivity differences fields of learning, and Lotka's law
Scientometrics, 1989The paper examines whether productivity differences among individual researchers are larger in some fields of learning than in others. Productivity patterns in the natural sciences, the medical sciences, the social sciences, and the humanities are compared by the use of unweighted and weighted publication counts. Irrespective of whether total number of
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Lotka's law and the literature of computer science
IEEE Transactions on Professional Communication, 1979From empirical data on the authorship of scientific papers, Alfred Lotka deduced on inverse-square law relating the number of authors of scientific papers to the number of papers written by each author. A basic assumption underlying Lotka's law is that the number of papers published by a scientist is a measure of his contribution to science.
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Price's square root law: Empirical validity and relation to Lotka's law
Information Processing & Management, 1988Abstract Price's well-known square root law states that half of the literature on a subject will be contributed by the square root of the total number of authors publishing in that area. Price's contention is treated here as a hypothesis and assessed against the evidence presented by both empirical and simulated author productivity distributions. The
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A Re-evaluation of Lotka's Law of Scientific Productivity
Social Studies of Science, 1982This Note examines the data base used by Lotka in propounding his Law, and by Price in elaborating it, and questions the validity of the generalizations drawn from it.
Michael H. MacRoberts +1 more
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The underlying process generating Lotka's Law and the statistics of exceedances
Information Processing & Management, 1998Lotka's Law is a widely observed distribution of authors of scholarly papers and patents. Numerous studies over the past seventy years have found Lotka's Law describes production in fields as diverse as chemistry, economics, history, information science, musicology, patents and psychology.
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Psychology of the Scientist: XI. Lotka's Law and Research Visibility
Psychological Reports, 1965Previous research has shown that, when scientists are rank ordered on the basis of number of publications and the number of publications is then plotted against these ranks, the resulting productivity curves are typically exponential in form. Citations to journal articles were analyzed to show that citations are similarly distributed, with the 10% most
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Personal name headings in COBIB: Testing Lotka’s Law
Scientometrics, 2008The purpose of this article is to provide information about author productivity as reflected through the number of occurrences of personal name headings in the Slovenian online catalogue COBIB. Only authors associated with monographs are treated. So, author productivity of monographs that has not been widely researched is empirically examined to ...
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Emerald authorship data, Lotka's law and research productivity
Aslib Proceedings, 2005Purpose – This paper offers a practical insight into the application of Lotka's law of author productivity to the question of how likely it is that an author will return to a particular publisher (rather than make another contribution to a subject literature, which is its usual application).
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Lotka's law and the pattern of scientific productivity in the dental science literature
Medical Informatics and the Internet in Medicine, 1999Statistical regularities can be observed in many natural and social phenomena. From empirical data on the authorship of scientific papers, Lotka deduced an inverse-square law: the number of authors publishing n papers is 1/n2 of those publishing one paper.
M, Kawamura +3 more
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Bibliometric modeling processes and the empirical validity of Lotka's Law
Journal of the American Society for Information Science, 1989Une litterature abondante porte sur la validite empirique de la loi de Lotka: ces etudes ne sont malheureusement pas concluantes et ne peuvent pas etre comparees par suite des differences importantes entre les methodes d'analyse utilisees. Les principaux elements a prendre en compte pour l'adaptation d'un modele bibliometrique a des donnees empiriques ...
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