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Article
Publication date: 1 June 1969

PENELOPE EARLE and BRIAN VICKERY

The analysis of citations has often been employed to indicate the use of the literature of science and technology. Citation is only an indicator of use, not an accurate measure…

69

Abstract

The analysis of citations has often been employed to indicate the use of the literature of science and technology. Citation is only an indicator of use, not an accurate measure, and like all such indicators has defects. Differences between indicators have been discussed elsewhere.

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Aslib Proceedings, vol. 21 no. 6
Type: Research Article
ISSN: 0001-253X

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Article
Publication date: 1 February 1969

PENELOPE EARLE and BRIAN VICKERY

A sample of citations made in 1965 United Kingdom social science literature has been analysed according to subject, bibliographic form, country of origin, language, and date, and…

125

Abstract

A sample of citations made in 1965 United Kingdom social science literature has been analysed according to subject, bibliographic form, country of origin, language, and date, and comparisons made with citations from science and technology literature. The relative sizes of the outputs of and demands for literature in these fields are estimated, and the subject distribution of citations within social science. The interrelations between source and cited subject are discussed. Use as indicated by citation is compared with use measured by loan demand on the National Lending Library.

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Journal of Documentation, vol. 25 no. 2
Type: Research Article
ISSN: 0022-0418

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Article
Publication date: 1 March 1974

MAURICE B. LINE and A. SANDISON

The term ‘obsolescence’ occurs frequently in the literature of librarianship and information science. In numerous papers we are told how most published literature becomes obsolete…

657

Abstract

The term ‘obsolescence’ occurs frequently in the literature of librarianship and information science. In numerous papers we are told how most published literature becomes obsolete within a measurable time, and that an item receives half the uses it will ever receive (‘half‐life’) in a few years. ‘Obsolescence’ is however very rarely defined, and its validity, interest, and practical value are often assumed rather than explained. Before reviewing studies on ‘obsolescence’, therefore, it is necessary to look at the concept and to identify the reasons why it should be of interest.

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Journal of Documentation, vol. 30 no. 3
Type: Research Article
ISSN: 0022-0418

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Article
Publication date: 1 March 1972

In 1966, the Government's Office for Scientific and Technical Information offered to increase its support for Aslib specifically to encourage it to build up a viable research…

14

Abstract

In 1966, the Government's Office for Scientific and Technical Information offered to increase its support for Aslib specifically to encourage it to build up a viable research department, to undertake systematic programmes of research into scientific and technical information systems, and to provide consultancy services in this field. In response to an appeal from Lord Kings Norton, then President of Aslib, some twenty member organizations agreed to share with OSTI the cost of this new development during its first three years. The three‐year development period ended in December 1969, and an account of the progress made during this period was published in Aslib Proceedings for May 1970.

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Aslib Proceedings, vol. 24 no. 3
Type: Research Article
ISSN: 0001-253X

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Article
Publication date: 1 May 1970

KAREN SPARCK JONES

My research over the last few years has been concerned with the use of automatically‐obtained keyword classifications for information retrieval. Such a classification can be…

107

Abstract

My research over the last few years has been concerned with the use of automatically‐obtained keyword classifications for information retrieval. Such a classification can be described as a thesaurus, but those classifications which have been most successful in my experiments do not resemble the normal kind of manually‐constructed thesaurus, and the bases on which automatic and manual thesauri are constructed are quite different. Human beings explicitly consider the meanings of words in grouping them, but word meanings are not accessible to computers. Automatic word classification is therefore based on information about the distributional behaviour of words in documents, on the assumption that words which behave in similar ways in terms of document occurrences are semantically related. That is to say, groups of words which are based on the statistical associations of their members in documents should reflect their meaning relations, at least sufficiently for the purposes of retrieval.

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Aslib Proceedings, vol. 22 no. 5
Type: Research Article
ISSN: 0001-253X

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Article
Publication date: 1 January 1973

P.R. MILLS

A sample of conference proceedings received at the National Lending Library in 1970 has been analysed for publication delay, physical form, subject, publisher, size, language and…

165

Abstract

A sample of conference proceedings received at the National Lending Library in 1970 has been analysed for publication delay, physical form, subject, publisher, size, language and presence of indexes, synopses, and discussions. The interdependence of these attributes with one another is discussed. Of the conferences that ought to have indexes only 22% have subject indexes and 26% author indexes. One in every four conferences deals with medicine. The median of publication delay is twelve months. Two‐thirds of all conference proceedings have from nine to fifty papers. The social sciences separate out as a distinct group having long publication delays, few large conferences, and being published mainly by university publishers.

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Journal of Documentation, vol. 29 no. 1
Type: Research Article
ISSN: 0022-0418

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Article
Publication date: 1 April 1972

JOHN FLETCHER

The article is an abbreviated form of the author's MA thesis, and comprises the results of an analysis of publication and citation of economics literature. The growth of the…

56

Abstract

The article is an abbreviated form of the author's MA thesis, and comprises the results of an analysis of publication and citation of economics literature. The growth of the monograph literature of economics seems to be below average, but a high birthrate of economics journals together with a growth in their size gives a high growth rate of periodical literature. From the analysis of citations in nine journals for 1950, 1960, and 1968 a shortening of the active life of both journal and non‐journal literature is found. A high degree of concentration of journal use is shown, over 70% of journal citations being from 20 titles, and the concentration is shown to be increasing. A rise in the use of unpublished material, especially working papers is indicated. Comparisons are made of the research use, measured by citations, with undergraduate use, measured by an analysis of reading lists at three British universities. Some tentative implications of the results for library policy are suggested.

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Journal of Documentation, vol. 28 no. 4
Type: Research Article
ISSN: 0022-0418

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