Results 231 to 240 of about 3,918 (277)

Hierarchical distributions and Bradford's Law

Journal of the American Society for Information Science, 1992
A probabilistic model of random fragmentation of the unit line provides the formal underpinning for deriving a distribution of the articles published in any field, over journals ranked in decreasing order of productivity. No assumptions need to be made about the causal mechanism that brings about such a distribution.
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THE AMBIGUITY OF BRADFORD'S LAW

Journal of Documentation, 1972
Recent discussion of Bradford's law of scatter has been founded on two formulations that are not mathematically equivalent. A method of comparing the two formulations against empirical data is developed, and the results using four sets of existing data are discussed. The results show that one particular formulation is more consistent with the practical
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The Haitun dichotomy and the relevance of Bradford's law

Journal of Information Science, 1984
In a critical review of all the empirical laws of bibliometrics and scientometrics, the Russian statistician S.D. Haitun has shown that the application of modern statistical theory to social science data is 'inadmissible', i.e. it 'does not work'. Haitun thus points to the need to develop a wholly new statistical theory for the social
K. Sparck Jones, B.C. Brookes
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Bradford's Law of Bibliography of Science: an Interpretation

Nature, 1970
THE distribution of scientific articles in journals is known to conform closely to Bradford's law. If the journals are divided into groups, each containing the same number of articles on a given subject, then the number of journals in the succeeding groups form a geometrical progression1.
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BRADFORD'S LAW OF SCATTERING

Journal of Documentation, 1948
DURING the course of an analysis of some 1,600 periodical references, borrowed by the library of Butterwick Research Laboratories from outside libraries, the results of the analysis were compared with studies on the scatter of articles in periodicals carried out at the Science Library.
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Towards a multi-disciplinary Bradford law

Scientometrics, 1994
Bradford's law, perhaps the most well known of the Informetric regularities, analyzes the scattering of articles in a single discipline over journals. Yet journals are multi-disciplinary entities. This paper discusses the implications for Bradford's law of the multi-disciplinary character of journals, and defines a simple model that indicates the ...
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Bradford's Law in the Context of Information Provision

Scientometrics, 2000
The aim of the study is to study empirical use of Bradford's law for decisions concerning information systems in problem based fields, were journals from different disciplines cover relevant information. Results of comparison of the cores in different fields can be used as a base for tailoring an information system.
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Bradford’s Law and the Literature of Agriculture

International Library Review, 1973
(1973). Bradford’s Law and the Literature of Agriculture. International Library Review: Vol. 5, No. 3, pp. 341-350.
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Bradford’s law and its application

International Library Review, 1979
(1979). Bradford’s law and its application. International Library Review: Vol. 11, No. 1, pp. 151-158.
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THE APPLICATION OF BRADFORD'S LAW TO MONOGRAPHS

Journal of Documentation, 1975
This paper presents an analysis of a sample of the monographs listed in the National Library of Medicine's Current Catalog under subject headings in the cardiovascular diseases category. The sample was composed of 326 publishers and 770 monographs. The sample of monographic literature used in this study conforms to Bradford's law and demonstrates that ...
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