Results 191 to 200 of about 1,297 (235)
An overview of air pollution research in Chile: Bibliometric analysis and scoping review, challenger and future directions. [PDF]
HeliyonVillacura L +4 more
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Empirical validation of Lotka's law
Information Processing & Management, 1986 Abstract Two modifications to the Pao procedure for testing Lotka's law are proposed and applied to 15 samples drawn from the humanities, social sciences, and ...
Paul Nicholls
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A new model that generates Lotka's law
Journal of the American Society for Information Science and Technology, 2001 AbstractIn this paper, we develop a new model for a process that generates Lotka's Law. We show that four relatively mild assumptions create a process that fits five different informetric distributions: rate of production, career duration, randomness, and Poisson distribution over time, as well as Lotka's Law.
John C. Huber
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Analysis of Lotka's law: The Simon-Yule approach
Information Processing & Management, 1989 Abstract A major difficulty in using the well-known Lotka's law in information science is in the estimation of parameters. In this paper, we argue that the difficulty arises from the misuse of goodness-of-fit tests. As an alternative, we adopt Simon's five-step modeling process for the study of Lotka's law.
Ye-Sho Chen
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Price's square root law: Empirical validity and relation to Lotka's law
Information Processing & Management, 1988 Abstract 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
Paul Nicholls
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A Re-evaluation of Lotka's Law of Scientific Productivity
Social Studies of Science, 1982 This 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 Re-applicability Explore of Lotka's Law in Patent Documents
Collnet Journal of Scientometrics and Information Management, 2014 Lotka's Law has always been attracting much attention in academia ever since its appearance and its applicability in literature has already gained verification. On the basic of former studies, this paper works at re-testing the applicability of Lotka's Law according to the massive data of the distribution of inventor productivity in patent literature ...
Zhitao Yang, Deng Lin, Minjie Xu
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A new short proof of Naranan's theorem, explaining Lotka's law and Zipf's law
Journal of the American Society for Information Science and Technology, 2010 AbstractNaranan's important theorem, published in Nature in 1970, states that if the number of journals grows exponentially and if the number of articles in each journal grows exponentially (at the same rate for each journal), then the system satisfies Lotka's law and a formula for the Lotka's exponent is given in function of the growth rates of the ...
Leo Egghe
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Scientific Productivity, Lotka’s Law, and STEM Librarianship
Science & Technology Libraries, 2021In this study, we examined the applicability of Lotka’s law by reviewing 590 STEM librarianship research articles published in seven journals between 2016 and 2019.
Clara Y. Tran, Selenay Aytac
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