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Mills, J.; Broughton, V.: Bliss Bibliographic Classification : Introduction and auxiliary schedules (1992)
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- COMPASS
- Documents / Subject classification
- LCSH
- Classification, Bibliographic
Bliss Bibliographic classification
- PRECIS
- Documents / Subject classification schemes: Bliss, Henry Evelyn / Bliss bibliographic classification / Texts
- Subject
- Classification, Bibliographic
Bliss Bibliographic classification
Documents / Subject classification schemes: Bliss, Henry Evelyn / Bliss bibliographic classification / Texts
Documents / Subject classification
-
Mills, J.: Bliss Bibliographic Classification First Edition (2009)
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- Abstract
- Henry Evelyn Bliss was probably the greatest American contributor to the theory of the classification of library materials. The first edition of the classification scheme he developed is discussed here by a major British thinker in this area, Jack Mills. After some years of use, the scheme was extensively revised, under the Editorship of the same Jack Mills, and the resulting second edition of the Bliss Bibliographic Classification is discussed in the entry by that name.
-
Mills, J.: Practice and theory in a general classification : the new Bliss Classification (BC2) (1982)
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- Source
- Universal classification I: subject analysis and ordering systems. Proc. of the 4th Int. Study Conf. on Classification research, Augsburg, 28.6.-2.7.1982. Ed.: I. Dahlberg
-
Mills, J.: ¬The new Bliss Classification (1976)
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- Abstract
- Summary of the decisions taken for the revision of the Bliss Classification and their consequences concerning internal organisation of classes, facet analysis, citation order, filing order, notation, and the A/Z index. Also, maintenance of the new BC and its possible future envisaged for about a century. It will be published in 20 separate volumens in the forthcoming 3-4 years
-
Mills, J.: Faceted classification and logical division in information retrieval (2004)
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- Abstract
- The main object of the paper is to demonstrate in detail the role of classification in information retrieval (IR) and the design of classificatory structures by the application of logical division to all forms of the content of records, subject and imaginative. The natural product of such division is a faceted classification. The latter is seen not as a particular kind of library classification but the only viable form enabling the locating and relating of information to be optimally predictable. A detailed exposition of the practical steps in facet analysis is given, drawing on the experience of the new Bliss Classification (BC2). The continued existence of the library as a highly organized information store is assumed. But, it is argued, it must acknowledge the relevance of the revolution in library classification that has taken place. It considers also how alphabetically arranged subject indexes may utilize controlled use of categorical (generically inclusive) and syntactic relations to produce similarly predictable locating and relating systems for IR.
-
Mills, J.: Bibliographic classification (1976)
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- Source
- Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby
-
Mills, J.: Inadequacies of existing general classification schemes (1969)
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- Source
- Classification and information control. Papers representing the work of the Classification Research Group during 1960-1968
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Brown, A.G.; Langridge, D.W.; Mills, J.: ¬An introduction to subject indexing (1982)
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- Content
- Introduction to subject indexing. - Subject analysis. - Elements of practical classification. - Universal Decimal Classification [UDC]. -Classified catalogue. - Alphabetical subject catalogue. - Post-coordinate indexing
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Mills, J.: Classification of a subject field (1957)
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- Source
- Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957
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Brown, A.G.; Langridge, D.W.; Mills, J.: Introduction to subject indexing : a programmed text (1976)
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- Content
- Vol.1: Subject analysis and practical classification.- Vol.2: UDC and chain procedure in subject cataloging
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Mills, J.: Library classification (1970)
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-
Mills, J.: Attention please, for BC2! (1983)
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- Source
- International classification. 10(1983), S.24-26
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Mills, J.: ¬A modern outline of library classification (1960)
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-
Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1997)
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- Source
- From classification to 'knowledge organization': Dorking revisited or 'past is prelude'. A collection of reprints to commemorate the firty year span between the Dorking Conference (First International Study Conference on Classification Research 1957) and the Sixth International Study Conference on Classification Research (London 1997). Ed.: A. Gilchrist
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Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1985)
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- Abstract
- A landmark event in the twentieth-century development of subject analysis theory was a retrieval experiment, begun in 1957, by Cyril Cleverdon, Librarian of the Cranfield Institute of Technology. For this work he received the Professional Award of the Special Libraries Association in 1962 and the Award of Merit of the American Society for Information Science in 1970. The objective of the experiment, called Cranfield I, was to test the ability of four indexing systems-UDC, Facet, Uniterm, and Alphabetic-Subject Headings-to retrieve material responsive to questions addressed to a collection of documents. The experiment was ambitious in scale, consisting of eighteen thousand documents and twelve hundred questions. Prior to Cranfield I, the question of what constitutes good indexing was approached subjectively and reference was made to assumptions in the form of principles that should be observed or user needs that should be met. Cranfield I was the first large-scale effort to use objective criteria for determining the parameters of good indexing. Its creative impetus was the definition of user satisfaction in terms of precision and recall. Out of the experiment emerged the definition of recall as the percentage of relevant documents retrieved and precision as the percentage of retrieved documents that were relevant. Operationalizing the concept of user satisfaction, that is, making it measurable, meant that it could be studied empirically and manipulated as a variable in mathematical equations. Much has been made of the fact that the experimental methodology of Cranfield I was seriously flawed. This is unfortunate as it tends to diminish Cleverdon's contribu tion, which was not methodological-such contributions can be left to benchmark researchers-but rather creative: the introduction of a new paradigm, one that proved to be eminently productive. The criticism leveled at the methodological shortcomings of Cranfield I underscored the need for more precise definitions of the variables involved in information retrieval. Particularly important was the need for a definition of the dependent variable index language. Like the definitions of precision and recall, that of index language provided a new way of looking at the indexing process. It was a re-visioning that stimulated research activity and led not only to a better understanding of indexing but also the design of better retrieval systems." Cranfield I was followed by Cranfield II. While Cranfield I was a wholesale comparison of four indexing "systems," Cranfield II aimed to single out various individual factors in index languages, called "indexing devices," and to measure how variations in these affected retrieval performance. The following selection represents the thinking at Cranfield midway between these two notable retrieval experiments.
- Source
- Theory of subject analysis: a sourcebook. Ed.: L.M. Chan, et al
