Results 201 to 210 of about 1,297 (235)

A relationship between Lotka's Law, Bradford's Law, and Zipf's Law

Journal of the American Society for Information Science, 1986
A common functional relationship among Lotka's law, Bradford's law, and Zipf's law is derived. The proof takes explicit account of the sequences of observed values of the variables by means of an index. This approach results in a more realistic and precise formulation of each law. © 1986 John Wiley & Sons, Inc.
Ye-Sho Chen, Ferdinand F. Leimkuhler
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Lotka’s law and author productivity pattern of research in law discipline

Collection and Curation, 2021
Purpose This study aims to analyze the productivity patterns of authors using law literature indexed in Directory of Open Access Journals (DOAJ) from 2016 to 2020 based on Lotka’s law. Lotka’s law of scientific productivity provides a platform for studying the variation between the actual and expected authors’ productivity patterns in a subject area ...
Archana Sahu, Puspanjali Jena
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Lotka's law and institutional productivity

Information Processing & Management, 1998
The present study aims at determining the applicability of Lotka's law, negative binomial distribution and lognormal distribution for institutional productivity, in the same way as it is to authors and their productivity in the field of engineering sciences and the patents filed by industrial firms in laser S&T.
Suresh Kumar, Praveen Sharma, K.C. Garg
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Lotka's Law and Bioinformatics Research in India

2021
The study aims to examine the validity of Lotka’s law and authorship distribution to the research outcome of Indian bioinformatics research output indexed in the web of science during 2008-2017. A total of 8732 papers has been scattered in 1723 journals during the period were compiled from web of science database.
SUDHIER, K G, GOPAL, MANYA R
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Lotka's Law and Computer Science Literature

Journal of the American Society for Information Science, 1979
AbstractAn experiment to verify the satisfaction of Lotka's law, with the papers published in the area of computer science, is reported. It is seen that the estimates of this law deviate considerably from the observations. Need for further experiments to verify Lotka's law in the area of applied sciences and engineering is emphasized.
T. Radhakrishnan, R. Kernizan
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Application of lotka's law in current science journal

Journal of Information Management, 2020
Purpose: The purpose of the study is to examine the application of Lotka’s law in current science journals. Aim: To investigate the scientific productivity of authorship patterns in current science journals. To verify the Lotka’s law using general power method (n≠2) and inverse square method (n=2) and to analyse the frequency distribution of author’s ...
M. Thamaraiselvi, S. Lakshmi, M. Manthiramoorthi   +2 more
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Conservation laws for Lotka–Volterra models

Mathematical Methods in the Applied Sciences, 2003
AbstractWe derive necessary and sufficient conditions on a Lotka–Volterra model to admit a conservation law of Volterra's type. The result and the proof for the corresponding linear algebra problem are given in graph‐theoretical terms; they refer to the directed graph which is defined by the coefficients of the differential equation system. Copyright ©
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An empirical examination of Lotka's law

Journal of the American Society for Information Science, 1986
There were 48 sets of author productivity data tested against Lotka's Law of xnmiddot;y = c. Overwhelming conformity to the law was found. However, only seven data sets fitted the inverse square law. For future tests, representative coverage and good sampling techniques should be adhered to in data compilation.
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Lotka's Law and Map Librarianship

Journal of the American Society for Information Science, 1975
AbstractLotka's Law states that given the number of authors who have written one article, the number writing multiple articles can be predicted. Though Lotka's Law was based on a study of the chemistry and physics literature, interest has recently developed as to its possible application to the humanities.
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Lotka's law, price's urn, and electronic publishing

Journal of the American Society for Information Science, 1995
The thesis of this brief piece is that electronic publishing in its present and future Internet or Internet-like format is sufficiently different that electronic publishing will burgeon and that it will fundamentally change the nature of scholarly pubishing. Why ?
Michael Koenig, Toni Harrell
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