Search (31 results, page 1 of 2)

  • × author_ss:"Riesthuis, G.J.A."
  1. Riesthuis, G.J.A.: Some thoughts about the format of the Master Reference File database (2000) 0.06
    0.05700779 = product of:
      0.11401558 = sum of:
        0.11401558 = sum of:
          0.008118451 = weight(_text_:a in 6405) [ClassicSimilarity], result of:
            0.008118451 = score(doc=6405,freq=2.0), product of:
              0.053105544 = queryWeight, product of:
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046056706 = queryNorm
              0.15287387 = fieldWeight in 6405, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.09375 = fieldNorm(doc=6405)
          0.10589713 = weight(_text_:22 in 6405) [ClassicSimilarity], result of:
            0.10589713 = score(doc=6405,freq=4.0), product of:
              0.16128273 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046056706 = queryNorm
              0.6565931 = fieldWeight in 6405, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.09375 = fieldNorm(doc=6405)
      0.5 = coord(1/2)
    
    Source
    Extensions and corrections to the UDC. 22(2000), S.15-22
    Type
    a
  2. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.3: Gecontroleerde informatietalen (1990) 0.05
    0.048416097 = product of:
      0.09683219 = sum of:
        0.09683219 = sum of:
          0.009471525 = weight(_text_:a in 210) [ClassicSimilarity], result of:
            0.009471525 = score(doc=210,freq=2.0), product of:
              0.053105544 = queryWeight, product of:
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046056706 = queryNorm
              0.17835285 = fieldWeight in 210, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.109375 = fieldNorm(doc=210)
          0.087360665 = weight(_text_:22 in 210) [ClassicSimilarity], result of:
            0.087360665 = score(doc=210,freq=2.0), product of:
              0.16128273 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046056706 = queryNorm
              0.5416616 = fieldWeight in 210, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.109375 = fieldNorm(doc=210)
      0.5 = coord(1/2)
    
    Source
    Open. 22(1990) no.1, S.11-15
    Type
    a
  3. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.4: Onderwerpsontsluiting en on-line catalogi (1990) 0.05
    0.048416097 = product of:
      0.09683219 = sum of:
        0.09683219 = sum of:
          0.009471525 = weight(_text_:a in 211) [ClassicSimilarity], result of:
            0.009471525 = score(doc=211,freq=2.0), product of:
              0.053105544 = queryWeight, product of:
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046056706 = queryNorm
              0.17835285 = fieldWeight in 211, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.109375 = fieldNorm(doc=211)
          0.087360665 = weight(_text_:22 in 211) [ClassicSimilarity], result of:
            0.087360665 = score(doc=211,freq=2.0), product of:
              0.16128273 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046056706 = queryNorm
              0.5416616 = fieldWeight in 211, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.109375 = fieldNorm(doc=211)
      0.5 = coord(1/2)
    
    Source
    Open. 22(1990) no.10, S.326-330
    Type
    a
  4. Riesthuis, G.J.A.; Bliedung, S.: Thesaurification of UDC: preliminary report (1990) 0.00
    0.004101291 = product of:
      0.008202582 = sum of:
        0.008202582 = product of:
          0.016405163 = sum of:
            0.016405163 = weight(_text_:a in 258) [ClassicSimilarity], result of:
              0.016405163 = score(doc=258,freq=6.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.3089162 = fieldWeight in 258, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=258)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    The UDC: Essays for a new decade. Ed.: A. Gilchrist, D. Strachan
    Type
    a
  5. Riesthuis, G.J.A.: ¬The Universal Decimal Classification as a CDS/ISIS database (1991) 0.00
    0.00334869 = product of:
      0.00669738 = sum of:
        0.00669738 = product of:
          0.01339476 = sum of:
            0.01339476 = weight(_text_:a in 251) [ClassicSimilarity], result of:
              0.01339476 = score(doc=251,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.25222903 = fieldWeight in 251, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=251)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  6. Riesthuis, G.J.A.: ¬A revised format for the Master Reference File database (2002) 0.00
    0.00334869 = product of:
      0.00669738 = sum of:
        0.00669738 = product of:
          0.01339476 = sum of:
            0.01339476 = weight(_text_:a in 4762) [ClassicSimilarity], result of:
              0.01339476 = score(doc=4762,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.25222903 = fieldWeight in 4762, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4762)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  7. Riesthuis, G.J.A.: ¬A revised format for the Master Reference File database (2003) 0.00
    0.00334869 = product of:
      0.00669738 = sum of:
        0.00669738 = product of:
          0.01339476 = sum of:
            0.01339476 = weight(_text_:a in 2005) [ClassicSimilarity], result of:
              0.01339476 = score(doc=2005,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.25222903 = fieldWeight in 2005, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2005)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  8. Riesthuis, G.J.A.: Construirea tezaurului pe baza CZU : o incercare de stabilire a regullilor (2000) 0.00
    0.0029294936 = product of:
      0.005858987 = sum of:
        0.005858987 = product of:
          0.011717974 = sum of:
            0.011717974 = weight(_text_:a in 5536) [ClassicSimilarity], result of:
              0.011717974 = score(doc=5536,freq=6.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.22065444 = fieldWeight in 5536, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5536)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Revista biblioteci Nationale a României. 6(2000) no.1, S.51-53
    Type
    a
  9. Zumer, M.; Riesthuis, G.J.A.: Consequences of implementing FRBR : are we ready to open pandora's box? (2002) 0.00
    0.0028703054 = product of:
      0.005740611 = sum of:
        0.005740611 = product of:
          0.011481222 = sum of:
            0.011481222 = weight(_text_:a in 637) [ClassicSimilarity], result of:
              0.011481222 = score(doc=637,freq=16.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.2161963 = fieldWeight in 637, product of:
                  4.0 = tf(freq=16.0), with freq of:
                    16.0 = termFreq=16.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=637)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The study Functional Requirements for Bibliograpbic Records (FRBR) was commissioned by IFLA and published in 1998. It defines the core functions of a catalogue (and bibliographic records) as a gateway to information. For that purpose an abstract entity-relationship model of a catalogue is proposed. The FRBR model is revolutionary. The (computer) catalogue is not seen as a sequence of bibliographic records and a replica of the traditional card catalogue, but rather as a network of connected entities, enabling the user to perform seamlessly all the necessary functions. So far there has been some theoretical discussion of the model and some limited experiments, but there is a lack of research in how to implement this theoretical model in practice, in new-generation catalogues. In this paper some reactions to the model are analysed. The main focus is an consequences of the model for the OPAC interface design, particularly the searching functionality and display of results.
    Type
    a
  10. Ongering, H.; Riesthuis, G.J.A.: ¬De ontsluiting in het ADION-systeem : precision en recall (1989) 0.00
    0.00270615 = product of:
      0.0054123 = sum of:
        0.0054123 = product of:
          0.0108246 = sum of:
            0.0108246 = weight(_text_:a in 416) [ClassicSimilarity], result of:
              0.0108246 = score(doc=416,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.20383182 = fieldWeight in 416, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.125 = fieldNorm(doc=416)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  11. Riesthuis, G.J.A.: Information languages and multilingual subject access (2003) 0.00
    0.0026202186 = product of:
      0.005240437 = sum of:
        0.005240437 = product of:
          0.010480874 = sum of:
            0.010480874 = weight(_text_:a in 3963) [ClassicSimilarity], result of:
              0.010480874 = score(doc=3963,freq=30.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.19735932 = fieldWeight in 3963, product of:
                  5.477226 = tf(freq=30.0), with freq of:
                    30.0 = termFreq=30.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3963)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In this paper the possibilities for a multilingual thesaurus in which not all descriptors in a given language have equivalent descriptors in all other languages and in which the hierarchical structure can have variations in the different languages and a small model of such a thesaurus is given. lt is argued that the searching possibilities that more recent programs for bibliographic databases offer make such non-identical thesauri possible.
    Content
    "1. Introduction Multilingual and crosslingual access to information is receiving more and more attention. Maybe the most important reason for this development is the Internet. There are estimations that about half of its users are people with a mother tongue other than English and that this proportion is growing. Crosslingual access in this context means the possibility to get free text access to information using another (natural) language than the language of the information itself. This type of access is important for users with a good passive knowledge of a language but with only a small active vocabulary of the same language, e.g. a Englishman who can read Russian, but has difficulties in formulating adequate search request in that language. Crosslingual access can also be valuable for monolingual users who can automatically or manually have translations of foreign language documents. The search requests will be translated or converted into the language of the information. Multilingual access assumes that the instruments used for access, the controlled information languages, are available in more than one language. An classic example is the Englishman who uses his English edition of the Universal Decimal Classification to search the catalogue of a library in China, although the classification of the library is done using a Chinese edition. In this case the searching and the classifying results in a notation that is the same irrespective which language edition was used for indexing. Another possibility is the use of a multilingual thesaurus or subject headings list, such the trilingual edition of the Library of Congress Subject Headings built at the Royal Library in Brussels (Belgium) or the Macrothesaurus of the OECD. Here, words are the access points - in one language into which each search request will be converted, or, alternatively, into all the languages involved. Multilingual information languages and guidelines an how to build them are the subject of this paper. Particular attention will be paid to multilingual thesauri."
    Source
    Subject retrieval in a networked environment: Proceedings of the IFLA Satellite Meeting held in Dublin, OH, 14-16 August 2001 and sponsored by the IFLA Classification and Indexing Section, the IFLA Information Technology Section and OCLC. Ed.: I.C. McIlwaine
    Type
    a
  12. Riesthuis, G.J.A.: Subject searching in merged catalogues : a plea for redundancy (2008) 0.00
    0.0024857575 = product of:
      0.004971515 = sum of:
        0.004971515 = product of:
          0.00994303 = sum of:
            0.00994303 = weight(_text_:a in 2193) [ClassicSimilarity], result of:
              0.00994303 = score(doc=2193,freq=12.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.18723148 = fieldWeight in 2193, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2193)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    From a logical point of view, an OPAC is an inventory with indexes. Inventories can be accumulated and the indexes merged. However, in most merged catalogues not all documents have the same subject indexing and a number of documents are indexed by more than one system. In practice, a merged catalogue also contains descriptions without subject indexing. To augment the situation four methods are used: searching with title keywords, mapping and switching, acceptance of descriptions indexed in a given way only, and »citation pearl growing«. The last method uses all available subject indicators by using subject indicators present in relevant descriptions found by already known indicators. This method can also be of help in mapping and switching.
    Type
    a
  13. Riesthuis, G.J.A.; Colenbrander-Dijkman, A.-M.: Subject access to central catalogues : incompatibility issues of library classification systems and subject headings in subject cataloguing (1986) 0.00
    0.0024857575 = product of:
      0.004971515 = sum of:
        0.004971515 = product of:
          0.00994303 = sum of:
            0.00994303 = weight(_text_:a in 3926) [ClassicSimilarity], result of:
              0.00994303 = score(doc=3926,freq=12.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.18723148 = fieldWeight in 3926, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3926)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Traditional subject cataloguing hampers subject retrieval in central catalogues, because of the lack of a common indexing and retrieval language in these catalogues. This study investigates the possibilities to use the various individual subject access systems, present in the catalogues, for subject access. A search procedure based on 'citation pearl growing' and 'user relevance feedback', which can be applied in a public access interface to central data bases, has been developed. From an experiment it can be concluded, that automated expert assistance, provided with a search strategy, will improve search response for unexperienced searchers. It reduces the number of zero-hits and increases the number of relevant items retrieved
    Type
    a
  14. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.1: Inhoudsanalyse (1989) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 1841) [ClassicSimilarity], result of:
              0.009471525 = score(doc=1841,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 1841, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1841)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  15. Riesthuis, G.J.A.: ¬The UDC master reference file (1998) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 7497) [ClassicSimilarity], result of:
              0.009471525 = score(doc=7497,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 7497, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=7497)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  16. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.2: Vrije terminologie versus gecontroleerd vocabulaire (1989) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 209) [ClassicSimilarity], result of:
              0.009471525 = score(doc=209,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 209, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=209)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  17. Riesthuis, G.J.A.; Storm, R.: GOO : the Dutch National System for subject indexing (1999) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 6150) [ClassicSimilarity], result of:
              0.009471525 = score(doc=6150,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 6150, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6150)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  18. Riesthuis, G.J.A.: Decomposition of complex UDC notations (1997) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 6406) [ClassicSimilarity], result of:
              0.009471525 = score(doc=6406,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 6406, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6406)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  19. Riesthuis, G.J.A.: Searching with words : re-use of subject indexing (1999) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 6413) [ClassicSimilarity], result of:
              0.009471525 = score(doc=6413,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 6413, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6413)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  20. Riesthuis, G.J.A.; Zumer, M.: ¬The Functional Requirements for Bibliographic Records and knowledge organization (2003) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 2699) [ClassicSimilarity], result of:
              0.009471525 = score(doc=2699,freq=8.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 2699, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2699)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Functional Requirements for Bibliographic Records (FRBR, 1998), the study commissioned by IFLA, brings revolutionary changes in the way we see modern computer catalogues. The catalogue is not seen as a sequence of bibliographic records and a copy of a card catalogue, but as an interconnected network of related information. Implications of the new model for the future development of catalogues are discussed. Special attention is given to access points and relationships between entities and the changes those will bring into both the formal and subject cataloguing, and authority files.
    Type
    a