Search (13475 results, page 12 of 674)

0.053534724 = product of:
  0.2141389 = sum of:
    0.2141389 = weight(_text_:heading in 870) [ClassicSimilarity], result of:
      0.2141389 = score(doc=870,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.5346592 = fieldWeight in 870, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0625 = fieldNorm(doc=870)
  0.25 = coord(1/4)

Abstract

The article discusses the construction of a controlled vocabulary for the indexing of petroleum and gas related articles in indigenous periodicals and newspapers in the library system of the Nigerian National Corporation (NNPC). The major problems encountered in the design of the subject heading list are highlighted and solutions offered. Attention is also drawn to neologisms as they apply to the controlled vocabulary under consideration.

0.053534724 = product of:
  0.2141389 = sum of:
    0.2141389 = weight(_text_:heading in 3164) [ClassicSimilarity], result of:
      0.2141389 = score(doc=3164,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.5346592 = fieldWeight in 3164, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0625 = fieldNorm(doc=3164)
  0.25 = coord(1/4)

Abstract

The paper discusses practical methods of apply DDC to digital library services arising from recent technical developments. These include the use of DDC summaries to create hierarchical browsing and tag cloud interfaces, the utility of DDC as a switching language between different subject heading and classification schemes, and the development of terminology servers for interoperability with digital libraries. The focus is on services based in Europe.

0.053534724 = product of:
  0.2141389 = sum of:
    0.2141389 = weight(_text_:heading in 3787) [ClassicSimilarity], result of:
      0.2141389 = score(doc=3787,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.5346592 = fieldWeight in 3787, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0625 = fieldNorm(doc=3787)
  0.25 = coord(1/4)

0.053534724 = product of:
  0.2141389 = sum of:
    0.2141389 = weight(_text_:heading in 560) [ClassicSimilarity], result of:
      0.2141389 = score(doc=560,freq=8.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.5346592 = fieldWeight in 560, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.03125 = fieldNorm(doc=560)
  0.25 = coord(1/4)

Abstract

Subject access to information has been the predominant approach of users to satisfy their information needs. Research demonstrates that the integration of controlled vocabulary information with an information retrieval system helps users perform more effective subject searches. This integration becomes possible when subject authority data (information about subjects from authority files) are linked to bibliographic files and are made available to users. The purpose of authority control is to ensure consistency in representing a value-a name of a person, a place name, or a subject term-in the elements used as access points in information retrieval. For example, "World War, 1939-1945" has been established as an authorized subject heading in the Library of Congress Subject Headings (LCSH). When using LCSH, in cataloging or indexing, all publications about World War II are assigned the established heading regardless of whether a publication refers to the war as the "European War, 1939-1945", "Second World War", "World War 2", "World War II", "WWII", "World War Two", or "2nd World War." The synonymous expressions are referred to by the authorized heading. This ensures that all publications about World War II can be retrieved by and displayed under the same subject heading, either in an individual institution's own catalog or database or in a union catalog that contains bibliographic records from a number of individual libraries or databases. In almost all large bibliographic databases, authority control is achieved manually or semi-automatically by means of an authority file. The file contains records of headings or access points - names, titles, or subjects - that have been authorized for use in bibliographic records. In addition to ensuring consistency in subject representation, a subject authority record also records and maintains semantic relationships among subject terms and/or their labels. Records in a subject authority file are connected through semantic relationships, which may be expressed statically in subject authority records or generated dynamically according to the specific needs (e.g., presenting the broader and narrower terms) of printed or online display of thesauri, subject headings lists, classification schemes, and other knowledge organization systems.

0.053534724 = product of:
  0.2141389 = sum of:
    0.2141389 = weight(_text_:heading in 2809) [ClassicSimilarity], result of:
      0.2141389 = score(doc=2809,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.5346592 = fieldWeight in 2809, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0625 = fieldNorm(doc=2809)
  0.25 = coord(1/4)

0.053534724 = product of:
  0.2141389 = sum of:
    0.2141389 = weight(_text_:heading in 3014) [ClassicSimilarity], result of:
      0.2141389 = score(doc=3014,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.5346592 = fieldWeight in 3014, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0625 = fieldNorm(doc=3014)
  0.25 = coord(1/4)

Abstract

Cataloging practices for video games have been in flux since the late 1970s, often lagging behind technological developments. This article describes the history of descriptive cataloging practices and MARC coding for video games. Also discussed are the special problems presented by Library of Congress subject heading and uniform title practice, which were developed for book cataloging rather than for the cataloging of video games themselves.

0.053140312 = product of:
  0.106280625 = sum of:
    0.0125948535 = weight(_text_:und in 2800) [ClassicSimilarity], result of:
      0.0125948535 = score(doc=2800,freq=2.0), product of:
        0.14685147 = queryWeight, product of:
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.06621197 = queryNorm
        0.085765935 = fieldWeight in 2800, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.02734375 = fieldNorm(doc=2800)
    0.09368577 = weight(_text_:heading in 2800) [ClassicSimilarity], result of:
      0.09368577 = score(doc=2800,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.2339134 = fieldWeight in 2800, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.02734375 = fieldNorm(doc=2800)
  0.5 = coord(2/4)

Abstract

The SAC Subcommittee on Subject Relationships/Reference Structures was authorized at the 1995 Midwinter Meeting and appointed shortly before Annual Conference. Its creation was one result of a discussion of how (and why) to promote the display and use of broader-term subject heading references, and its charge reads as follows: To investigate: (1) the kinds of relationships that exist between subjects, the display of which are likely to be useful to catalog users; (2) how these relationships are or could be recorded in authorities and classification formats; (3) options for how these relationships should be presented to users of online and print catalogs, indexes, lists, etc. By the summer 1996 Annual Conference, make some recommendations to SAC about how to disseminate the information and/or implement changes. At that time assess the need for additional time to investigate these issues. The Subcommittee's work on each of the imperatives in the charge was summarized in a report issued at the 1996 Annual Conference (Appendix A). Highlights of this work included the development of a taxonomy of 165 subject relationships; a demonstration that, using existing MARC coding, catalog systems could be programmed to generate references they do not currently support; and an examination of reference displays in several CD-ROM database products. Since that time, work has continued on identifying term relationships and display options; on tracking research, discussion, and implementation of subject relationships in information systems; and on compiling a list of further research needs.

Theme

Konzeption und Anwendung des Prinzips Thesaurus

0.052371934 = product of:
  0.20948774 = sum of:
    0.20948774 = weight(_text_:heading in 1097) [ClassicSimilarity], result of:
      0.20948774 = score(doc=1097,freq=10.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.52304626 = fieldWeight in 1097, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.02734375 = fieldNorm(doc=1097)
  0.25 = coord(1/4)

Abstract

Organizing and providing access to the resources an the Internet has been a problem area in spite of the availability of sophisticated search engines and other Software tools. There have been several attempts to organize the resources an the World Wide Web. Some of them have tried to use traditional library classification schemes such as the Library of Congress Classification, the Dewey Decimal Classification and others. However there is a need to assign proper subject headings to them and present them in a logical or hierarchical sequence to cater to the need for browsing. This paper attempts to describe an experimental system designed to organize and provide access to web documents using a faceted pre-coordinate indexing system based an the Deep Structure Indexing System (DSIS) derived from POPSI (Postulate based Permuted Subject Indexing) of Bhattacharyya, and the facet analysis and chain indexing system of Ranganathan. A prototype Software System has been designed to create a database of records specifying Web documents according to the Dublin Core and to input a faceted subject heading according to DSIS. Synonymous terms are added to the Standard terms in the heading using appropriate symbols. Once the data are entered along with a description and the URL of the web document, the record is stored in the System. More than one faceted subject heading can be assigned to a record depending an the content of the original document. The System stores the Surrogates and keeps the faceted subject headings separately after establishing a link. The search is carried out an index entries derived from the faceted subject heading using the chain indexing technique. If a single term is Input, the System searches for its presence in the faceted subject headings and displays the subject headings in a sorted sequence reflecting an organizing sequence. If the number of retrieved Keadings is too large (running into more than a page) the user has the option of entering another search term to be searched in combination. The System searches subject headings already retrieved and looks for those containing the second term. The retrieved faceted subject headings can be displayed and browsed. When the relevant subject heading is selected the system displays the records with their URLs. Using the URL, the original document an the web can be accessed. The prototype system developed in a Windows NT environment using ASP and a web server is under rigorous testing. The database and Index management routines need further development.

0.04731846 = product of:
  0.18927383 = sum of:
    0.18927383 = weight(_text_:heading in 1395) [ClassicSimilarity], result of:
      0.18927383 = score(doc=1395,freq=4.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.47257644 = fieldWeight in 1395, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0390625 = fieldNorm(doc=1395)
  0.25 = coord(1/4)

Abstract

LCSH are increasingly seen as 'the' English language controlled vocabulary, despite their lack of a theoretical foundation, and their evident US bias. In mapping exercises between national subject heading lists, and in exercises in digital resource organization and management, LCSH are often chosen because of the lack of any other widely accepted English language standard for subject cataloguing. It is therefore important that the basic nature of LCSH, their advantages, and their limitations, are well understood both by LIS practitioners and those in the wider information community. Information professionals who attended library school before 1995 - and many more recent library school graduates - are unlikely to have had a formal introduction to LCSH. Paraprofessionals who undertake cataloguing are similarly unlikely to have enjoyed an induction to the broad principles of LCSH. There is currently no compact guide to LCSH written from a UK viewpoint, and this eminently practical text fills that gap. It features topics including: background and history of LCSH; subject heading lists; structure and display in LCSH; form of entry; application of LCSH; document analysis; main headings; topical, geographical and free-floating sub-divisions; building compound headings; name headings; headings for literature, art, music, history and law; and, LCSH in the online environment. There is a strong emphasis throughout on worked examples and practical exercises in the application of the scheme, and a full glossary of terms is supplied. No prior knowledge or experience of subject cataloguing is assumed. This is an indispensable guide to LCSH for practitioners and students alike from a well-known and popular author.

0.04731846 = product of:
  0.18927383 = sum of:
    0.18927383 = weight(_text_:heading in 598) [ClassicSimilarity], result of:
      0.18927383 = score(doc=598,freq=4.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.47257644 = fieldWeight in 598, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0390625 = fieldNorm(doc=598)
  0.25 = coord(1/4)

Abstract

Purpose - This paper aims to discuss some long-standing issues of the development of a subject heading language as pre- or postcoordinated. Design/methodology/approach - In a review of literature on pre- and postcoordination and user behaviour, 20 criteria originally discussed by Svenonius are considered. Findings - The advantages and disadvantages of pre- and postcoordinated systems are on a very similar level. Most subject heading languages developed recently are precoordinated. They all require investments in highly skilled intellectual work, and are therefore expensive and difficult to maintain. Postcoordinated systems seem to have more advantages for information providers, but less for users. However, most of these disadvantages could be overcome by known information retrieval models and techniques. Research limitations/implications - The criteria originally discussed by Svenonius are difficult to evaluate in an exact manner. Some of them are also irrelevant because of changes in information retrieval systems. Practical implications - It was found that the decision on whether to use a pre- or postcoordinated system cannot be taken independent of consideration of the subject authority file and the functions of an information retrieval system, which should support users on one hand and information providers and indexers on the other. Originality/value - This literature review brings together some findings that have not been considered together previously.

0.04731846 = product of:
  0.18927383 = sum of:
    0.18927383 = weight(_text_:heading in 1472) [ClassicSimilarity], result of:
      0.18927383 = score(doc=1472,freq=4.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.47257644 = fieldWeight in 1472, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0390625 = fieldNorm(doc=1472)
  0.25 = coord(1/4)

Abstract

The following paper deals with an automatic text classification method which does not require training documents. For this method the German Subject Heading Authority File (SWD), provided by the linked data service of the German National Library is used. Recently the SWD was enriched with notations of the Dewey Decimal Classification (DDC). In consequence it became possible to utilize the subject headings as textual representations for the notations of the DDC. Basically, we we derive the classification of a text from the classification of the words in the text given by the thesaurus. The method was tested by classifying 3826 OAI-Records from 7 different repositories. Mean reciprocal rank and recall were chosen as evaluation measure. Direct comparison to a machine learning method has shown that this method is definitely competitive. Thus we can conclude that the enriched version of the SWD provides high quality information with a broad coverage for classification of German scientific articles.

0.04731846 = product of:
  0.18927383 = sum of:
    0.18927383 = weight(_text_:heading in 3294) [ClassicSimilarity], result of:
      0.18927383 = score(doc=3294,freq=4.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.47257644 = fieldWeight in 3294, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0390625 = fieldNorm(doc=3294)
  0.25 = coord(1/4)

Abstract

From the very beginnings of library automation, subject authority control has been considered an important bibliographic tool in the Czech National Library (CNL). Effective subject access cannot exist without standardised access points. Subject authorities are considered an indispensable reference tool in supporting the selection of subject access points and normalizing content indexing. Most importantly, they are heavily relied upon when it comes to customisation of links between bibliographic records and subject access points in order to create a user-friendly subject browsing and searching environment. Because of the fact that the Universal Decimal Classification (UDC) is widely used in Czech Libraries it has become a readily available language independent subject framework which can be complemented by a more user-friendly subject heading system. In this context, the subject authority control offers a means of enhancing subject headings' access points with terminology and the semantic links available in UDC. Furthermore classification is used to enrich relationships between authority records themselves. The author will discuss in more detail the different aspects and advantages of subject authorities in which a classification and a subject heading system complement one another and the way this is implemented in the CNL.

0.04731846 = product of:
  0.18927383 = sum of:
    0.18927383 = weight(_text_:heading in 588) [ClassicSimilarity], result of:
      0.18927383 = score(doc=588,freq=4.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.47257644 = fieldWeight in 588, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0390625 = fieldNorm(doc=588)
  0.25 = coord(1/4)

Abstract

To organize information, librarians create structures. These structures grow from a logic that goes back at least as far as Aristotle. It is the basis of classification as we practice it, and thesauri and subject headings have developed from it. Feminist critiques of logic suggest that logic is gendered in nature. This article will explore how these critiques play out in contemporary standards for the organization of information. Our widely used classification schemes embody principles such as hierarchical force that conform to traditional/Aristotelian logic. Our subject heading strings follow a linear path of subdivision. Our thesauri break down subjects into discrete concepts. In thesauri and subject heading lists we privilege hierarchical relationships, reflected in the syndetic structure of broader and narrower terms, over all other relationships. Are our classificatory and syndetic structures gendered? Are there other options? Carol Gilligan's In a Different Voice (1982), Women's Ways of Knowing (Belenky, Clinchy, Goldberger, & Tarule, 1986), and more recent related research suggest a different type of structure for women's knowledge grounded in "connected knowing." This article explores current and potential elements of connected knowing in subject access with a focus on the relationships, both paradigmatic and syntagmatic, between concepts.

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 1733) [ClassicSimilarity], result of:
      0.18737154 = score(doc=1733,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 1733, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=1733)
  0.25 = coord(1/4)

Abstract

The OCLC Authority File is one of the most underused and underrated yet most powerful tool for answering reference questions. It provides the benefits of no cost searching, access to a wealth of biographical and geographical information online, increased staff productivity by reducing research time, multiple cross reference access points, and documenting sources used to verify the information. The flexible searching protocol and the consolidation in one record of both the authorized and all variant forms for personal, corporate, and geographical names, subject headings, and uniform titles (created by the Library of Congress and the National Coordinated Cataloguing Operations (NACO)) mean that searchers need know only one of the forms to retrieve the established heading

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 3066) [ClassicSimilarity], result of:
      0.18737154 = score(doc=3066,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 3066, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=3066)
  0.25 = coord(1/4)

Abstract

There are many problems with subject access in online catalogues. One of the major problems is information overload. One kind of this occurs when the display consists of a lengthy segment of the subject index in which a single subject heading is followed by a bewildering array of subdivisons, qualifications and phrases. This problem can be alleviated by presenting the subject index in a summary form that the user can expand to provide more detail as appropriate. Such an approach could be realized within the context of a direct manipulation style of user interface. In particular, a manner of displaying information called 'fisheye views' could be applied to the subject index display

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 4243) [ClassicSimilarity], result of:
      0.18737154 = score(doc=4243,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 4243, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=4243)
  0.25 = coord(1/4)

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 7714) [ClassicSimilarity], result of:
      0.18737154 = score(doc=7714,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 7714, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=7714)
  0.25 = coord(1/4)

Abstract

The ILSA prototype was developed using an object-oriented multimedia user interfcae on six NeXT workstations with two databases: the first with 100.000 MARC records and the second with 20.000 additional records enhanced with table of contents data. The items are grouped into subject clusters consisting of the classification number and the first subject heading assigned. Every other distinct keyword in the MARC record is linked to the subject cluster in an automated natural language mapping scheme, which leads the user from the term entered to the controlled vocabulary of the subject clusters in which the term appeared. The use of a hierarchical classification number (Dewey) makes it possible to broaden or narrow a search at will

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 8165) [ClassicSimilarity], result of:
      0.18737154 = score(doc=8165,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 8165, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=8165)
  0.25 = coord(1/4)

Abstract

Discusses the origins of the concept of main entry and of confusion about what is meant by the term: a card in the catalogue, or a line above the the description serving as an access point. Examines the drawbacks of dual meaning: the full bibliographic record headed by the name of the author; and the author heading itself. Calls for change in the transfer to the electronic catalogue of terminology that was only descriptive and meaningful in the card catalogue. Proposes, in answer to the question of how the role of the entry can be transformed into uniform, collocative author-name access in the MARC record, that the 100/110 main entry MARC field be transformed into the primary field for the creator's authorized personal or corporate name

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 1155) [ClassicSimilarity], result of:
      0.18737154 = score(doc=1155,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 1155, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=1155)
  0.25 = coord(1/4)

Abstract

Discusses the need for facilities for online vocabulary control and standardization of terms, codes, etc., so as to secure consistency in naming of subjects, objects, countries, languages, etc., in databases at data entry stage. Most information storage and retrieval packages for microcomputers including MicroIsis provide for online vocabulary control in formulating search expressions for information retrieval, but not at the data entry stage. VOCON.PAS is a Pascal interface program for use with MicroIsis software for (a) online selection of term(s) and/or code(s) from vocabulary control tool, such as, thesaurus, subject heading list, classification scheme, nomenclature list(s)

0.046842884 = product of:
  0.18737154 = sum of:
    0.18737154 = weight(_text_:heading in 1663) [ClassicSimilarity], result of:
      0.18737154 = score(doc=1663,freq=2.0), product of:
        0.40051475 = queryWeight, product of:
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.06621197 = queryNorm
        0.4678268 = fieldWeight in 1663, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0489783 = idf(docFreq=284, maxDocs=44421)
          0.0546875 = fieldNorm(doc=1663)
  0.25 = coord(1/4)

Abstract

A movement for a subject heading code to standardize LCSH and their usage gained considerable attention in the late 1980s and early 1990s. Examines the reasons for the lack of progress in this project, which include: the lack of any plan from the LoC which could serve as a philosophical foundation for either a subject access system or the changes made to it; the belief that online catalogues make a controlled subject vocabulary obsolete; and professional ignorance, apathy, and negativism. Warns that, in an increasingly complex age, lack of standardization of any technical system or process tends to lead to the demise of that system or process