Search (47 results, page 1 of 3)

0.05037638 = product of:
  0.14105387 = sum of:
    0.030006537 = weight(_text_:subject in 4066) [ClassicSimilarity], result of:
      0.030006537 = score(doc=4066,freq=4.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.27942157 = fieldWeight in 4066, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4066)
    0.03364573 = weight(_text_:classification in 4066) [ClassicSimilarity], result of:
      0.03364573 = score(doc=4066,freq=8.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.35186368 = fieldWeight in 4066, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4066)
    0.033585876 = product of:
      0.06717175 = sum of:
        0.06717175 = weight(_text_:schemes in 4066) [ClassicSimilarity], result of:
          0.06717175 = score(doc=4066,freq=4.0), product of:
            0.16067243 = queryWeight, product of:
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.03002521 = queryNorm
            0.41806644 = fieldWeight in 4066, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4066)
      0.5 = coord(1/2)
    0.03364573 = weight(_text_:classification in 4066) [ClassicSimilarity], result of:
      0.03364573 = score(doc=4066,freq=8.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.35186368 = fieldWeight in 4066, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4066)
    0.010170003 = product of:
      0.020340007 = sum of:
        0.020340007 = weight(_text_:22 in 4066) [ClassicSimilarity], result of:
          0.020340007 = score(doc=4066,freq=2.0), product of:
            0.10514317 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03002521 = queryNorm
            0.19345059 = fieldWeight in 4066, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4066)
      0.5 = coord(1/2)
  0.35714287 = coord(5/14)

Abstract

The focus of this paper is the provision of terminology- and classification-based terminologies interoperability data via web services, initially using interoperability data based on the use of a Dewey Decimal Classification (DDC) spine, but with an aim to explore other possibilities in time, including the use of other spines. The High-Level Thesaurus Project (HILT) Phase IV developed pilot web services based on SRW/U, SOAP, and SKOS to deliver machine-readable terminology and crossterminology mappings data likely to be useful to information services wishing to enhance their subject search or browse services. It also developed an associated toolkit to help information services technical staff to embed HILT-related functionality within service interfaces. Several UK information services have created illustrative user interface enhancements using HILT functionality and these will demonstrate what is possible. HILT currently has the following subject schemes mounted and available: DDC, CAB, GCMD, HASSET, IPSV, LCSH, MeSH, NMR, SCAS, UNESCO, and AAT. It also has high level mappings between some of these schemes and DDC and some deeper pilot mappings available.

Content

Teil von: Papers from Classification at a Crossroads: Multiple Directions to Usability: International UDC Seminar 2009-Part 2

Date

6. 1.2011 19:22:48

0.045787815 = product of:
  0.16025734 = sum of:
    0.044100422 = weight(_text_:subject in 1967) [ClassicSimilarity], result of:
      0.044100422 = score(doc=1967,freq=6.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.41066417 = fieldWeight in 1967, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.046875 = fieldNorm(doc=1967)
    0.049448926 = weight(_text_:classification in 1967) [ClassicSimilarity], result of:
      0.049448926 = score(doc=1967,freq=12.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.5171319 = fieldWeight in 1967, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=1967)
    0.049448926 = weight(_text_:classification in 1967) [ClassicSimilarity], result of:
      0.049448926 = score(doc=1967,freq=12.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.5171319 = fieldWeight in 1967, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=1967)
    0.017259069 = product of:
      0.034518138 = sum of:
        0.034518138 = weight(_text_:22 in 1967) [ClassicSimilarity], result of:
          0.034518138 = score(doc=1967,freq=4.0), product of:
            0.10514317 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03002521 = queryNorm
            0.32829654 = fieldWeight in 1967, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=1967)
      0.5 = coord(1/2)
  0.2857143 = coord(4/14)

Abstract

This paper reports on the second part of an initiative of the authors on researching classification systems with the conceptual model defined by the Functional Requirements for Subject Authority Data (FRSAD) final report. In an earlier study, the authors explored whether the FRSAD conceptual model could be extended beyond subject authority data to model classification data. The focus of the current study is to determine if classification data modeled using FRSAD can be used to solve real-world discovery problems in multicultural and multilingual contexts. The paper discusses the relationships between entities (same type or different types) in the context of classification systems that involve multiple translations and /or multicultural implementations. Results of two case studies are presented in detail: (a) two instances of the DDC (DDC 22 in English, and the Swedish-English mixed translation of DDC 22), and (b) Chinese Library Classification. The use cases of conceptual models in practice are also discussed.

Source

Beyond libraries - subject metadata in the digital environment and semantic web. IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn

0.045715474 = product of:
  0.16000415 = sum of:
    0.042435654 = weight(_text_:subject in 3152) [ClassicSimilarity], result of:
      0.042435654 = score(doc=3152,freq=2.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.39516178 = fieldWeight in 3152, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.078125 = fieldNorm(doc=3152)
    0.03364573 = weight(_text_:classification in 3152) [ClassicSimilarity], result of:
      0.03364573 = score(doc=3152,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.35186368 = fieldWeight in 3152, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.078125 = fieldNorm(doc=3152)
    0.05027704 = weight(_text_:bibliographic in 3152) [ClassicSimilarity], result of:
      0.05027704 = score(doc=3152,freq=2.0), product of:
        0.11688946 = queryWeight, product of:
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.03002521 = queryNorm
        0.43012467 = fieldWeight in 3152, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.078125 = fieldNorm(doc=3152)
    0.03364573 = weight(_text_:classification in 3152) [ClassicSimilarity], result of:
      0.03364573 = score(doc=3152,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.35186368 = fieldWeight in 3152, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.078125 = fieldNorm(doc=3152)
  0.2857143 = coord(4/14)

Series

IFLA series on bibliographic control; vol. 42

Source

Subject access: preparing for the future. Conference on August 20 - 21, 2009 in Florence, the IFLA Classification and Indexing Section sponsored an IFLA satellite conference entitled "Looking at the Past and Preparing for the Future". Eds.: P. Landry et al

0.041799262 = product of:
  0.14629741 = sum of:
    0.03675035 = weight(_text_:subject in 1962) [ClassicSimilarity], result of:
      0.03675035 = score(doc=1962,freq=6.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.34222013 = fieldWeight in 1962, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1962)
    0.04758225 = weight(_text_:classification in 1962) [ClassicSimilarity], result of:
      0.04758225 = score(doc=1962,freq=16.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.49761042 = fieldWeight in 1962, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1962)
    0.04758225 = weight(_text_:classification in 1962) [ClassicSimilarity], result of:
      0.04758225 = score(doc=1962,freq=16.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.49761042 = fieldWeight in 1962, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1962)
    0.014382556 = product of:
      0.028765112 = sum of:
        0.028765112 = weight(_text_:22 in 1962) [ClassicSimilarity], result of:
          0.028765112 = score(doc=1962,freq=4.0), product of:
            0.10514317 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03002521 = queryNorm
            0.27358043 = fieldWeight in 1962, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1962)
      0.5 = coord(1/2)
  0.2857143 = coord(4/14)

Abstract

This article reports on the second part of an initiative of the authors on researching classification systems with the conceptual model defined by the Functional Requirements for Subject Authority Data (FRSAD) final report. In an earlier study, the authors explored whether the FRSAD conceptual model could be extended beyond subject authority data to model classification data. The focus of the current study is to determine if classification data modeled using FRSAD can be used to solve real-world discovery problems in multicultural and multilingual contexts. The article discusses the relationships between entities (same type or different types) in the context of classification systems that involve multiple translations and/or multicultural implementations. Results of two case studies are presented in detail: (a) two instances of the Dewey Decimal Classification [DDC] (DDC 22 in English, and the Swedish-English mixed translation of DDC 22), and (b) Chinese Library Classification. The use cases of conceptual models in practice are also discussed.

Footnote

Contribution in a special issue "Beyond libraries: Subject metadata in the digital environment and Semantic Web" - Enthält Beiträge der gleichnamigen IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn.

Source

Cataloging and classification quarterly. 52(2014) no.1, S.90-101

0.041199524 = product of:
  0.14419833 = sum of:
    0.056933407 = weight(_text_:subject in 1802) [ClassicSimilarity], result of:
      0.056933407 = score(doc=1802,freq=10.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.5301652 = fieldWeight in 1802, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.046875 = fieldNorm(doc=1802)
    0.028549349 = weight(_text_:classification in 1802) [ClassicSimilarity], result of:
      0.028549349 = score(doc=1802,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.29856625 = fieldWeight in 1802, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=1802)
    0.030166224 = weight(_text_:bibliographic in 1802) [ClassicSimilarity], result of:
      0.030166224 = score(doc=1802,freq=2.0), product of:
        0.11688946 = queryWeight, product of:
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.03002521 = queryNorm
        0.2580748 = fieldWeight in 1802, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.046875 = fieldNorm(doc=1802)
    0.028549349 = weight(_text_:classification in 1802) [ClassicSimilarity], result of:
      0.028549349 = score(doc=1802,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.29856625 = fieldWeight in 1802, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=1802)
  0.2857143 = coord(4/14)

Abstract

The German subject headings authority file - SWD - provides a terminologically controlled vocabulary, covering all fields of knowledge. The subject headings are determined by the German Rules for the Subject Catalogue. The authority file is produced and updated daily by participating libraries from around Germany, Austria and Switzerland. Over the last twenty years, it grew to an online-accessible database with about 550.000 headings. They are linked to other thesauri, also to French and English equivalents and with notations of the Dewey Decimal Classification. Thus, it allows multilingual access and searching in dispersed, heterogeneously indexed catalogues. The vocabulary is not only used for cataloguing library materials, but also web-resources and objects in archives and museums.

Series

IFLA series on bibliographic control; vol. 42

Source

Subject access: preparing for the future. Conference on August 20 - 21, 2009 in Florence, the IFLA Classification and Indexing Section sponsored an IFLA satellite conference entitled "Looking at the Past and Preparing for the Future". Eds.: P. Landry et al

0.035516314 = product of:
  0.124307096 = sum of:
    0.042009152 = weight(_text_:subject in 1805) [ClassicSimilarity], result of:
      0.042009152 = score(doc=1805,freq=4.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.3911902 = fieldWeight in 1805, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1805)
    0.023552012 = weight(_text_:classification in 1805) [ClassicSimilarity], result of:
      0.023552012 = score(doc=1805,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24630459 = fieldWeight in 1805, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1805)
    0.035193928 = weight(_text_:bibliographic in 1805) [ClassicSimilarity], result of:
      0.035193928 = score(doc=1805,freq=2.0), product of:
        0.11688946 = queryWeight, product of:
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.03002521 = queryNorm
        0.30108726 = fieldWeight in 1805, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1805)
    0.023552012 = weight(_text_:classification in 1805) [ClassicSimilarity], result of:
      0.023552012 = score(doc=1805,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24630459 = fieldWeight in 1805, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1805)
  0.2857143 = coord(4/14)

Abstract

This paper describes the basic concepts of terminology services and their role in information retrieval interfaces. Terminology services are consumed by other software applications using machine-to-machine protocols, rather than directly by end-users. An example of a terminology service is the pilot developed by the High Level Thesaurus (HILT) project which has successfully demonstrated its potential for enhancing subject retrieval in operational services. Examples of enhancements in three such services are given. The paper discusses the future development of terminology services in relation to the Semantic Web.

Series

IFLA series on bibliographic control; vol. 42

Source

Subject access: preparing for the future. Conference on August 20 - 21, 2009 in Florence, the IFLA Classification and Indexing Section sponsored an IFLA satellite conference entitled "Looking at the Past and Preparing for the Future". Eds.: P. Landry et al

0.031247824 = product of:
  0.10936738 = sum of:
    0.051972847 = weight(_text_:subject in 4379) [ClassicSimilarity], result of:
      0.051972847 = score(doc=4379,freq=12.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.48397237 = fieldWeight in 4379, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4379)
    0.016822865 = weight(_text_:classification in 4379) [ClassicSimilarity], result of:
      0.016822865 = score(doc=4379,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.17593184 = fieldWeight in 4379, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4379)
    0.0237488 = product of:
      0.0474976 = sum of:
        0.0474976 = weight(_text_:schemes in 4379) [ClassicSimilarity], result of:
          0.0474976 = score(doc=4379,freq=2.0), product of:
            0.16067243 = queryWeight, product of:
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.03002521 = queryNorm
            0.2956176 = fieldWeight in 4379, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4379)
      0.5 = coord(1/2)
    0.016822865 = weight(_text_:classification in 4379) [ClassicSimilarity], result of:
      0.016822865 = score(doc=4379,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.17593184 = fieldWeight in 4379, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4379)
  0.2857143 = coord(4/14)

Abstract

While support for subject searching has been traditionally advocated for in library catalogs, often in the form of a catalog objective to find everything that a library has on a certain topic, research has shown that subject access has not been satisfactory. Many existing online catalogs and discovery services do not seem to make good use of the intellectual effort invested into assigning controlled subject index terms and classes. For example, few support hierarchical browsing of classification schemes and other controlled vocabularies with hierarchical structures, few provide end-user-friendly options to choose a more specific concept to increase precision, a broader concept or related concepts to increase recall, to disambiguate homonyms, or to find which term is best used to name a concept. Optimum subject access in library catalogs and discovery services is analyzed from the perspective of earlier research as well as contemporary conceptual models and cataloguing codes. Eighteen proposed features of what this should entail in practice are drawn. In an exploratory qualitative study, the three most common discovery services used in Swedish academic libraries are analyzed against these features. In line with previous research, subject access in contemporary interfaces is demonstrated to less than optimal. This is in spite of the fact that individual collections have been indexed with controlled vocabularies and a significant number of controlled vocabularies have been mapped to each other and are available in interoperable standards. Strategic action is proposed to build research-informed (inter)national standards and guidelines.

0.030442556 = product of:
  0.10654894 = sum of:
    0.036007844 = weight(_text_:subject in 4158) [ClassicSimilarity], result of:
      0.036007844 = score(doc=4158,freq=4.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.33530587 = fieldWeight in 4158, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.046875 = fieldNorm(doc=4158)
    0.02018744 = weight(_text_:classification in 4158) [ClassicSimilarity], result of:
      0.02018744 = score(doc=4158,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.21111822 = fieldWeight in 4158, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=4158)
    0.030166224 = weight(_text_:bibliographic in 4158) [ClassicSimilarity], result of:
      0.030166224 = score(doc=4158,freq=2.0), product of:
        0.11688946 = queryWeight, product of:
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.03002521 = queryNorm
        0.2580748 = fieldWeight in 4158, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.046875 = fieldNorm(doc=4158)
    0.02018744 = weight(_text_:classification in 4158) [ClassicSimilarity], result of:
      0.02018744 = score(doc=4158,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.21111822 = fieldWeight in 4158, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=4158)
  0.2857143 = coord(4/14)

Abstract

The treatment of subjects by Functional Requirements for Bibliographic Records (FRBR) has attracted less attention than some of its other aspects, but there seems to be a general consensus that it needs work. While some have proposed elaborating its subject categories-concepts, objects, events, and places-to increase their semantic complexity, a working group of the International Federation of Library Associations and Institutions (IFLA) has recently made a promising proposal that essentially bypasses those categories in favor of one entity, thema. This article gives an overview of the proposal and discusses its relevance to another difficult problem, ambiguities in the establishment of headings for buildings.Use of dynamic links from subject-based finding aids to records for electronic resources in the OPAC is suggested as one method for by-passing the OPAC search interface, thus making the library's electronic resources more accessible. This method simplifies maintenance of links to electronic resources and aids instruction by providing a single, consistent access point to them. Results of a usage study from before and after this project was completed show a consistent, often dramatic increase in use of the library's electronic resources.

Source

Cataloging and classification quarterly. 48(2010) no.5, S.445-449

0.03032552 = product of:
  0.10613932 = sum of:
    0.02546139 = weight(_text_:subject in 4788) [ClassicSimilarity], result of:
      0.02546139 = score(doc=4788,freq=2.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.23709705 = fieldWeight in 4788, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.046875 = fieldNorm(doc=4788)
    0.02018744 = weight(_text_:classification in 4788) [ClassicSimilarity], result of:
      0.02018744 = score(doc=4788,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.21111822 = fieldWeight in 4788, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=4788)
    0.040303055 = product of:
      0.08060611 = sum of:
        0.08060611 = weight(_text_:schemes in 4788) [ClassicSimilarity], result of:
          0.08060611 = score(doc=4788,freq=4.0), product of:
            0.16067243 = queryWeight, product of:
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.03002521 = queryNorm
            0.5016798 = fieldWeight in 4788, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.046875 = fieldNorm(doc=4788)
      0.5 = coord(1/2)
    0.02018744 = weight(_text_:classification in 4788) [ClassicSimilarity], result of:
      0.02018744 = score(doc=4788,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.21111822 = fieldWeight in 4788, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=4788)
  0.2857143 = coord(4/14)

Abstract

In the last few years projects such as DESIRE, MACS, CrissCross and KoMoHe have demonstrated the benefits as well as the challenges of mapping between controlled vocabularies. Each project has taken a slightly different approach to the definition and implementation of appropriate types of mapping. The mapping types supported by SKOS are slightly different again. In an ideal world, all major databases would be interconnected; all widely used thesauri, classification schemes and subject heading schemes would map to each other; and all of us would use the same basic types of mapping to enable universal interoperability. Or would we? This paper will discuss the feasibility and desirability of agreeing and implementing standardized mapping types.

0.023276636 = product of:
  0.1086243 = sum of:
    0.042009152 = weight(_text_:subject in 3874) [ClassicSimilarity], result of:
      0.042009152 = score(doc=3874,freq=4.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.3911902 = fieldWeight in 3874, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3874)
    0.033307575 = weight(_text_:classification in 3874) [ClassicSimilarity], result of:
      0.033307575 = score(doc=3874,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.34832728 = fieldWeight in 3874, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3874)
    0.033307575 = weight(_text_:classification in 3874) [ClassicSimilarity], result of:
      0.033307575 = score(doc=3874,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.34832728 = fieldWeight in 3874, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3874)
  0.21428572 = coord(3/14)

Abstract

We take a small sample of works and compare how these are classified within both the Universal Decimal Classification and the Basic concepts Classification. We examine notational length, expressivity, network effects, and the number of subject strings. One key finding is that BCC typically synthesizes many more terms than UDC in classifying a particular document - but the length of classificatory notations is roughly equivalent for the two KOSs. BCC captures documents with fewer subject strings (generally one) but these are more complex.

0.022654418 = product of:
  0.10572062 = sum of:
    0.0474445 = weight(_text_:subject in 3870) [ClassicSimilarity], result of:
      0.0474445 = score(doc=3870,freq=10.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.4418043 = fieldWeight in 3870, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3870)
    0.029138058 = weight(_text_:classification in 3870) [ClassicSimilarity], result of:
      0.029138058 = score(doc=3870,freq=6.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.3047229 = fieldWeight in 3870, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3870)
    0.029138058 = weight(_text_:classification in 3870) [ClassicSimilarity], result of:
      0.029138058 = score(doc=3870,freq=6.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.3047229 = fieldWeight in 3870, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3870)
  0.21428572 = coord(3/14)

Abstract

Data from multiple knowledge organization systems are combined to provide a global overview of the content holdings of a small personal library. Subject headings and classification data are used to effectively map the combined book and topic space of the library. While harvested and manipulated by hand, the work reveals issues and potential solutions when using automated techniques to produce topic maps of much larger libraries. The small library visualized consists of the thirty-nine, digital, English language books found in the Osama Bin Laden (OBL) compound in Abbottabad, Pakistan upon his death. As this list of books has garnered considerable media attention, it is worth providing a visual overview of the subject content of these books - some of which is not readily apparent from the titles. Metadata from subject headings and classification numbers was combined to create book-subject maps. Tree maps of the classification data were also produced. The books contain 328 subject headings. In order to enhance the base map with meaningful thematic overlay, library holding count data was also harvested (and aggregated from duplicates). This additional data revealed the relative scarcity or popularity of individual books.

0.020362813 = product of:
  0.09502646 = sum of:
    0.03675035 = weight(_text_:subject in 3944) [ClassicSimilarity], result of:
      0.03675035 = score(doc=3944,freq=6.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.34222013 = fieldWeight in 3944, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3944)
    0.029138058 = weight(_text_:classification in 3944) [ClassicSimilarity], result of:
      0.029138058 = score(doc=3944,freq=6.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.3047229 = fieldWeight in 3944, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3944)
    0.029138058 = weight(_text_:classification in 3944) [ClassicSimilarity], result of:
      0.029138058 = score(doc=3944,freq=6.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.3047229 = fieldWeight in 3944, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3944)
  0.21428572 = coord(3/14)

Abstract

Purpose - The paper aims to develop a prototype middleware framework between different terminology resources in order to provide a subject cross-browsing service for library portal systems. Design/methodology/approach - Nine terminology experts were interviewed to collect appropriate knowledge to support the development of a theoretical framework for the research. Based on this, a simplified software-based prototype system was constructed incorporating the knowledge acquired. The prototype involved mappings between the computer science schedule of the Dewey Decimal Classification (which acted as a spine) and two controlled vocabularies, UKAT and ACM Computing Classification. Subsequently, six further experts in the field were invited to evaluate the prototype system and provide feedback to improve the framework. Findings - The major findings showed that, given the large variety of terminology resources distributed throughout the web, the proposed middleware service is essential to integrate technically and semantically the different terminology resources in order to facilitate subject cross-browsing. A set of recommendations are also made, outlining the important approaches and features that support such a cross-browsing middleware service. Originality/value - Cross-browsing features are lacking in current library portal meta-search systems. Users are therefore deprived of this valuable retrieval provision. This research investigated the case for such a system and developed a prototype to fill this gap.

Object

ACM Computing Classification

0.016459066 = product of:
  0.076808974 = sum of:
    0.029704956 = weight(_text_:subject in 3038) [ClassicSimilarity], result of:
      0.029704956 = score(doc=3038,freq=2.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.27661324 = fieldWeight in 3038, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3038)
    0.023552012 = weight(_text_:classification in 3038) [ClassicSimilarity], result of:
      0.023552012 = score(doc=3038,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24630459 = fieldWeight in 3038, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3038)
    0.023552012 = weight(_text_:classification in 3038) [ClassicSimilarity], result of:
      0.023552012 = score(doc=3038,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24630459 = fieldWeight in 3038, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3038)
  0.21428572 = coord(3/14)

Abstract

This paper discusses goals, methods and benefits of the conceptual mapping approach conducted within the CrissCross project, where topical headings of the German subject headings authority file Schlagwortnormdatei (SWD) are being mapped to notations of the Dewey Decimal Classification. Project-specific retrieval concepts for improving thematic access in heterogeneous information spaces are outlined and explained on the basis of significant examples.

0.016459066 = product of:
  0.076808974 = sum of:
    0.029704956 = weight(_text_:subject in 4785) [ClassicSimilarity], result of:
      0.029704956 = score(doc=4785,freq=2.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.27661324 = fieldWeight in 4785, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4785)
    0.023552012 = weight(_text_:classification in 4785) [ClassicSimilarity], result of:
      0.023552012 = score(doc=4785,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24630459 = fieldWeight in 4785, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4785)
    0.023552012 = weight(_text_:classification in 4785) [ClassicSimilarity], result of:
      0.023552012 = score(doc=4785,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24630459 = fieldWeight in 4785, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4785)
  0.21428572 = coord(3/14)

Abstract

This paper discusses goals, methods and benefits of the conceptual mapping approach developed by the CrissCross project, in the framework of which the topical headings of the German subject headings authority file Schlagwortnormdatei (SWD) have been mapped to notations of the Dewey Decimal Classification (DDC). Projectspecific retrieval concepts for improving thematic access in heterogeneous information spaces are outlined and explained on the basis of significant examples.

0.016367726 = product of:
  0.07638272 = sum of:
    0.036007844 = weight(_text_:subject in 1886) [ClassicSimilarity], result of:
      0.036007844 = score(doc=1886,freq=4.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.33530587 = fieldWeight in 1886, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.046875 = fieldNorm(doc=1886)
    0.02018744 = weight(_text_:classification in 1886) [ClassicSimilarity], result of:
      0.02018744 = score(doc=1886,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.21111822 = fieldWeight in 1886, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=1886)
    0.02018744 = weight(_text_:classification in 1886) [ClassicSimilarity], result of:
      0.02018744 = score(doc=1886,freq=2.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.21111822 = fieldWeight in 1886, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=1886)
  0.21428572 = coord(3/14)

Abstract

This article presents an Italian experience of developing streamlined semantic interoperability between the Italian Thesaurus of Nuovo soggettario and the Library of Congress Subject Headings (LCSH). This ongoing project must take into consideration the differences between the two indexing tools, while the criteria on which the resulting actions are based are being clarified continually. Reciprocal interoperability, thanks to the Simple Knowledge Organization System format, enables us to create links with English language subject headings. The National Central Library of Florence is studying methods of automatically catching LCSH equivalents and the question of how to take advantage of both Semantic Web outputs and the multilingual dataset of Wikidata.

Source

Cataloging and classification quarterly. 53(2015) no.3/4, S.414-429

0.015941469 = product of:
  0.11159027 = sum of:
    0.055795137 = weight(_text_:classification in 5399) [ClassicSimilarity], result of:
      0.055795137 = score(doc=5399,freq=22.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.58349997 = fieldWeight in 5399, product of:
          4.690416 = tf(freq=22.0), with freq of:
            22.0 = termFreq=22.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5399)
    0.055795137 = weight(_text_:classification in 5399) [ClassicSimilarity], result of:
      0.055795137 = score(doc=5399,freq=22.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.58349997 = fieldWeight in 5399, product of:
          4.690416 = tf(freq=22.0), with freq of:
            22.0 = termFreq=22.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5399)
  0.14285715 = coord(2/14)

Abstract

Research information can be useful to science stake-holders for discovering, evaluating and planning research activities. In the Netherlands, the institute tasked with the stewardship of national research information is DANS (Data Archiving and Networked Services). DANS is the home of NARCIS, the national portal for research information, which uses a similarly named national research classification. The NARCIS Classification assigns symbols to represent the knowledge bases of contributing scholars. A recent research stream in knowledge organization known as comparative classification uses two or more classifications experimentally to generate empirical evidence about coverage of conceptual content, population of the classes, and economy of classification. This paper builds on that research in order to further understand the comparative impact of the NARCIS Classification alongside a classification designed specifically for information resources. Our six cases come from the DANS project Knowledge Organization System Observatory (KOSo), which itself is classified using the Information Coding Classification (ICC) created in 1982 by Ingetraut Dahlberg. ICC is considered to have the merits of universality, faceting, and a top-down approach. Results are exploratory, indicating that both classifications provide fairly precise coverage. The inflexibility of the NARCIS Classification makes it difficult to express complex concepts. The meta-ontological, epistemic stance of the ICC is apparent in all aspects of this study. Using the two together in the DANS KOS Observatory will provide users with both clarity of scientific positioning and ontological relativity.

Footnote

Beitrag eines Special Issue: Research Information Systems and Science Classifications; including papers from "Trajectories for Research: Fathoming the Promise of the NARCIS Classification," 27-28 September 2018, The Hague, The Netherlands.

Object

NARCIS classification

0.015933806 = product of:
  0.07435776 = sum of:
    0.028549349 = weight(_text_:classification in 4379) [ClassicSimilarity], result of:
      0.028549349 = score(doc=4379,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.29856625 = fieldWeight in 4379, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=4379)
    0.028549349 = weight(_text_:classification in 4379) [ClassicSimilarity], result of:
      0.028549349 = score(doc=4379,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.29856625 = fieldWeight in 4379, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.046875 = fieldNorm(doc=4379)
    0.017259069 = product of:
      0.034518138 = sum of:
        0.034518138 = weight(_text_:22 in 4379) [ClassicSimilarity], result of:
          0.034518138 = score(doc=4379,freq=4.0), product of:
            0.10514317 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03002521 = queryNorm
            0.32829654 = fieldWeight in 4379, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=4379)
      0.5 = coord(1/2)
  0.21428572 = coord(3/14)

Abstract

Am 29. und 30. Oktober 2009 fand in der Königlichen Bibliothek in Den Haag das zweite internationale UDC-Seminar zum Thema "Classification at a Crossroad" statt. Organisiert wurde diese Konferenz - wie auch die erste Konferenz dieser Art im Jahr 2007 - vom UDC-Konsortium (UDCC). Im Mittelpunkt der diesjährigen Veranstaltung stand die Erschließung des World Wide Web unter besserer Nutzung von Klassifikationen (im Besonderen natürlich der UDC), einschließlich benutzerfreundlicher Repräsentationen von Informationen und Wissen. Standards, neue Technologien und Dienste, semantische Suche und der multilinguale Zugriff spielten ebenfalls eine Rolle. 135 Teilnehmer aus 35 Ländern waren dazu nach Den Haag gekommen. Das Programm umfasste mit 22 Vorträgen aus 14 verschiedenen Ländern eine breite Palette, wobei Großbritannien mit fünf Beiträgen am stärksten vertreten war. Die Tagesschwerpunkte wurden an beiden Konferenztagen durch die Eröffnungsvorträge gesetzt, die dann in insgesamt sechs thematischen Sitzungen weiter vertieft wurden.

Date

22. 1.2010 15:06:54

0.015285226 = product of:
  0.071331054 = sum of:
    0.023791125 = weight(_text_:classification in 4814) [ClassicSimilarity], result of:
      0.023791125 = score(doc=4814,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24880521 = fieldWeight in 4814, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4814)
    0.0237488 = product of:
      0.0474976 = sum of:
        0.0474976 = weight(_text_:schemes in 4814) [ClassicSimilarity], result of:
          0.0474976 = score(doc=4814,freq=2.0), product of:
            0.16067243 = queryWeight, product of:
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.03002521 = queryNorm
            0.2956176 = fieldWeight in 4814, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.3512506 = idf(docFreq=569, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4814)
      0.5 = coord(1/2)
    0.023791125 = weight(_text_:classification in 4814) [ClassicSimilarity], result of:
      0.023791125 = score(doc=4814,freq=4.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.24880521 = fieldWeight in 4814, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4814)
  0.21428572 = coord(3/14)

Abstract

Ontologies are increasingly seen as a new type of knowledge organization system (KOS) besides traditional ones such as classification schemes or thesauri. Consequently, there are efforts to compare them with and map them to other KOS. This paper argues that only ontologies for reality representation are useful subjects of such comparisons and mappings. These ontologies are difficult to distinguish from other "data modelling" - types of ontology, since both can be represented through the popular Web Ontology Language (OWL). Data modelling ontologies such as Simple Knowledge Organization Systems (SKOS) are useful instruments for establishing interoperability between KOS in the sense of publishing and accessing data and data models in a uniform way as well as for relating them to each other. Discriminating these two understandings of ontologies particularly supports comparisons and mappings between traditional KOS and ontologies. In practice, such efforts are still impeded by the absence of standards or guidelines for vocabulary control in ontologies. Moreover, this paper emphasizes that methods for constructing and evaluating reality representation ontologies can be useful to re-engineer traditional KOS. This makes them become more interoperable in the sense of combinable, but also more useful in the sense of improving search expansion results and reusable for different purposes.

Source

Classification and ontology: formal approaches and access to knowledge: proceedings of the International UDC Seminar, 19-20 September 2011, The Hague, The Netherlands. Eds.: A. Slavic u. E. Civallero

0.013458293 = product of:
  0.09420805 = sum of:
    0.047104023 = weight(_text_:classification in 2515) [ClassicSimilarity], result of:
      0.047104023 = score(doc=2515,freq=8.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.49260917 = fieldWeight in 2515, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2515)
    0.047104023 = weight(_text_:classification in 2515) [ClassicSimilarity], result of:
      0.047104023 = score(doc=2515,freq=8.0), product of:
        0.09562149 = queryWeight, product of:
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.03002521 = queryNorm
        0.49260917 = fieldWeight in 2515, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.1847067 = idf(docFreq=4974, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2515)
  0.14285715 = coord(2/14)

Abstract

This paper presents a system which creates and visualizes probabilistic semantic links between concepts in a thesaurus and classes in a classification system. For creating the links, we build on the Polylingual Labeled Topic Model (PLL-TM) (Posch et al., in KI 2015: advances in artificial intelligence, 2015). PLL-TM identifies probable thesaurus descriptors for each class in the classification system by using information from the natural language text of documents, their assigned thesaurus descriptors and their designated classes. The links are then presented to users of the system in an interactive visualization, providing them with an automatically generated overview of the relations between the thesaurus and the classification system.

0.012608183 = product of:
  0.088257276 = sum of:
    0.036007844 = weight(_text_:subject in 4791) [ClassicSimilarity], result of:
      0.036007844 = score(doc=4791,freq=4.0), product of:
        0.10738805 = queryWeight, product of:
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.03002521 = queryNorm
        0.33530587 = fieldWeight in 4791, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.576596 = idf(docFreq=3361, maxDocs=44218)
          0.046875 = fieldNorm(doc=4791)
    0.05224943 = weight(_text_:bibliographic in 4791) [ClassicSimilarity], result of:
      0.05224943 = score(doc=4791,freq=6.0), product of:
        0.11688946 = queryWeight, product of:
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.03002521 = queryNorm
        0.44699866 = fieldWeight in 4791, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.893044 = idf(docFreq=2449, maxDocs=44218)
          0.046875 = fieldNorm(doc=4791)
  0.14285715 = coord(2/14)

Abstract

Since its launch in 1998, the initiative introducing the Functional Requirements of Bibliographic Records (FRBR) has provided and established a new standar for the representation of bibliographic data. Following the success of the Functional Requirements for Bibliographic Records, a number of related modules have been developed, complementing the initial standard. One of the most recent and promising efforts in this field is the initiative surrounding the development and approval of the Functional Requirements for Subject Authority Data (FRSAD). FRSAD is a specification of the requirements for modelling subject authority data, based on a conceptual model, which combines various theoretical aspects and technical modelling strategies. This article analyses the model's adaptability and appropriateness in an environment of heterogeneous and distributed systems and makes some suggestions for further improvements.