Search (32 results, page 2 of 2)

0.0035690558 = product of:
  0.017845279 = sum of:
    0.017845279 = weight(_text_:of in 141) [ClassicSimilarity], result of:
      0.017845279 = score(doc=141,freq=20.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.27317715 = fieldWeight in 141, product of:
          4.472136 = tf(freq=20.0), with freq of:
            20.0 = termFreq=20.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0390625 = fieldNorm(doc=141)
  0.2 = coord(1/5)

Abstract

Outlines the bibliographic enterprise envisaged by Otlet and LaFontaine, which resulted in the UDC being developed in 1895, and the subsequent history of the scheme. Relationship with DDC from which it was derived deteriorated in the early 20th century and changes in funding, location, and editorship of Duyvis from 1929-59 had a profound effect on the scheme's development and management. Lloyd, Duyvis successor, reformed the revision structure, and further management changes from 1975 to the present day, culminated in the formation of the UDC Consortium in 1992. Notes the subsequent creation of a machine-readable Master Reference File and speedier revision procedures. Examines the scheme's structure, development, and influence on classification theory, problems caused by longevity and lack of standrad procedures, and highlights proposals for their reform to improve the scheme's suitability for an automated world. Explores research projects in 1960s which foreshadowed possibilities today, such as a complementary thesaurus and individualisation of single concepts notationally. Emphasizes the value of classification in a multilingual environment and outlines the future developments

Footnote

Contribution to part 1 of a 2 part series on the history of documentation and information science

Source

Journal of the American Society for Information Science. 48(1997) no.4, S.331-339

0.0035331852 = product of:
  0.017665926 = sum of:
    0.017665926 = weight(_text_:of in 7738) [ClassicSimilarity], result of:
      0.017665926 = score(doc=7738,freq=10.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.2704316 = fieldWeight in 7738, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0546875 = fieldNorm(doc=7738)
  0.2 = coord(1/5)

Abstract

An exploratory and experimental study for the purpose of testing a methodology which might be used to restructure the UDC class by class. The study uses the facet framework established in the Bliss Bibliographic Classification, 2nd ed., as the basis for the restructuring and the research is being carried out using the discipline 'medical sciences'. A thesaurus will be derived from the restructured scheme which will act as an index to it. In a broader context this research is an attempt to see how far it is possible to take the knowledge base of one classification scheme and impose the structure of another scheme on it

Source

Knowledge organization and quality management: Proc. of the 3rd International ISKO Conference, 20-24 June 1994, Copenhagen, Denmark. Ed.: H. Albrechtsen et al

0.0035331852 = product of:
  0.017665926 = sum of:
    0.017665926 = weight(_text_:of in 3773) [ClassicSimilarity], result of:
      0.017665926 = score(doc=3773,freq=10.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.2704316 = fieldWeight in 3773, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3773)
  0.2 = coord(1/5)

Abstract

This entry outlines the history, application, and nature of the Universal Decimal Classification (UDC). It explains its structure, management, revision, and the many changes that have taken place since the Task Force for UDC Development reported in 1990, and the UDC Consortium was formed. This led to the creation of the machine-readable database, or Master Reference File (MRF), consisting of some 66,000 terms, which forms the basis of all published editions and is revised and updated annually. Revision procedures and applications in an online environment are noted and the potential for future development discussed.

Source

Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates

0.0034969465 = product of:
  0.017484732 = sum of:
    0.017484732 = weight(_text_:of in 2764) [ClassicSimilarity], result of:
      0.017484732 = score(doc=2764,freq=30.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.26765788 = fieldWeight in 2764, product of:
          5.477226 = tf(freq=30.0), with freq of:
            30.0 = termFreq=30.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.03125 = fieldNorm(doc=2764)
  0.2 = coord(1/5)

Abstract

Prior to the OPAC many institutions devised classifications to suit their special needs. Others expanded or altered general schemes to accommodate specific approaches. A driving force in the creation of these classifications was the Classification Research Group, celebrating its golden jubilee in 2002, whose work created a framework and body of principles that remain valid for the retrieval needs of today. The paper highlights some of these special schemes and highlights the fundamental principles which remain valid. 1. Introduction The distinction between a general and a special classification scheme is made frequently in the textbooks, but is one that it is sometimes difficult to draw. The Library of Congress classification could be described as the special classification par excellence. Normally, however, a special classification is taken to be one that is restricted to a specific subject, and quite often used in one specific context only, either a library or a bibliographic listing or for a specific purpose such as a search engine and it is in this sense that I propose to examine some of these schemes. Today, there is a widespread preference for searching an words as a supplement to the use of a standard system, usually the Dewey Decimal Classification (DDC). This is enhanced by the ability to search documents full-text in a computerized environment, a situation that did not exist 20 or 30 years ago. Today's situation is a great improvement in many ways, but it does depend upon the words used by the author and the searcher corresponding, and often presupposes the use of English. In libraries, the use of co-operative services and precatalogued records already provided with classification data has also spelt the demise of the special scheme. In many instances, the survival of a special classification depends upon its creaior and, with the passage of time, this becomes inevitably more precarious.

Source

Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas

0.0033859033 = product of:
  0.016929517 = sum of:
    0.016929517 = weight(_text_:of in 5168) [ClassicSimilarity], result of:
      0.016929517 = score(doc=5168,freq=18.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.25915858 = fieldWeight in 5168, product of:
          4.2426405 = tf(freq=18.0), with freq of:
            18.0 = termFreq=18.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5168)
  0.2 = coord(1/5)

Abstract

Editors of long-standing classifications have to adopt their schemes to totally different circumstances from those they were originally designed to suit. The need to retrieve information accurately in an online environment and a world dominated by the Internet is vital and contrasts with the basic linear approach for which these classifications were intended. The latter need still has to be satisfied, so ways of achieving both goals must be explored. The need for greater synthesis, clearly defined factes, with distinctive notation and a closely adhered to citation order is essential. An expressive notation is attractive in an online environmen. Modern educational approaches make traditional structures meaningless and the current economic climate and expense of developing new publication formats is reducing revision budgets. Co-operation between editors and the use of one scheme, e.g. DDC, as a switching language between other schemes, e.g., UDC, thesauri and subject headings lists are one way forward. Existing co-operative projects and future plans between the editors of DDC, UDC and BC2 are discussed and the complementing of classification by a thesaurus is recommended

Source

Knowledge organization and change: Proceedings of the Fourth International ISKO Conference, 15-18 July 1996, Library of Congress, Washington, DC. Ed.: R. Green

0.0031601768 = product of:
  0.015800884 = sum of:
    0.015800884 = weight(_text_:of in 3164) [ClassicSimilarity], result of:
      0.015800884 = score(doc=3164,freq=2.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.24188137 = fieldWeight in 3164, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.109375 = fieldNorm(doc=3164)
  0.2 = coord(1/5)

Source

The future of classification. Ed. R. Marcella u. A. Maltby

0.0031277642 = product of:
  0.01563882 = sum of:
    0.01563882 = weight(_text_:of in 3567) [ClassicSimilarity], result of:
      0.01563882 = score(doc=3567,freq=6.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.23940048 = fieldWeight in 3567, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0625 = fieldNorm(doc=3567)
  0.2 = coord(1/5)

Abstract

Achieving widespread agreement on subject organization is a complex task, and a challenge greater than that of creating a standard bibliographic description for international exchange-the goal of Universal Bibliographic Control (UBC). This article traces the history of the Universal Decimal Classification (UDC), its relationship with other schemes, and opportunities for further collaboration.

0.002764579 = product of:
  0.013822895 = sum of:
    0.013822895 = weight(_text_:of in 161) [ClassicSimilarity], result of:
      0.013822895 = score(doc=161,freq=12.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.21160212 = fieldWeight in 161, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0390625 = fieldNorm(doc=161)
  0.2 = coord(1/5)

Abstract

This book is an extension and total revision of the author's earlier Guide to the use of UDC. The original was written in 1993 and in the intervening years much has happened with the classification. In particular, a much more rigorous approach has been undertaken in revision to ensure that the scheme is able to handle the requirements of a networked world. The book outlines the history and development of the Universal Decimal Classification, provides practical hints on its application and works through all the auxiliary and main tables highlighting aspects that need to be noted in applying the scheme. It also provides guidance on the use of the Master Reference File and discusses the ways in which the classification is used in the 21st century and its suitability as an aid to subject description in tagging metadata and consequently for application on the Internet. It is intended as a source for information about the scheme, for practical usage by classifiers in their daily work and as a guide to the student learning how to apply the classification. It is amply provided with examples to illustrate the many ways in which the scheme can be applied and will be a useful source for a wide range of information workers

0.002708723 = product of:
  0.013543615 = sum of:
    0.013543615 = weight(_text_:of in 5409) [ClassicSimilarity], result of:
      0.013543615 = score(doc=5409,freq=2.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.20732689 = fieldWeight in 5409, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.09375 = fieldNorm(doc=5409)
  0.2 = coord(1/5)

0.002708723 = product of:
  0.013543615 = sum of:
    0.013543615 = weight(_text_:of in 3026) [ClassicSimilarity], result of:
      0.013543615 = score(doc=3026,freq=2.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.20732689 = fieldWeight in 3026, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.09375 = fieldNorm(doc=3026)
  0.2 = coord(1/5)

Abstract

Proposal for the restructuring of UDC class 617.6/.9 - Nervous system. Neurology

0.002708723 = product of:
  0.013543615 = sum of:
    0.013543615 = weight(_text_:of in 3751) [ClassicSimilarity], result of:
      0.013543615 = score(doc=3751,freq=2.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.20732689 = fieldWeight in 3751, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.09375 = fieldNorm(doc=3751)
  0.2 = coord(1/5)

0.0018058153 = product of:
  0.009029076 = sum of:
    0.009029076 = weight(_text_:of in 1632) [ClassicSimilarity], result of:
      0.009029076 = score(doc=1632,freq=2.0), product of:
        0.06532493 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.04177434 = queryNorm
        0.13821793 = fieldWeight in 1632, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.0625 = fieldNorm(doc=1632)
  0.2 = coord(1/5)

Source

Subject indexing: principles and practices in the 90's. Proceedings of the IFLA Satellite Meeting Held in Lisbon, Portugal, 17-18 August 1993, and sponsored by the IFLA Section on Classification and Indexing and the Instituto da Biblioteca Nacional e do Livro, Lisbon, Portugal. Ed.: R.P. Holley et al