Search (10 results, page 1 of 1)

  • × author_ss:"Aitchison, J."
  1. Aitchison, J.; Dextre Clarke, S.G.: ¬The Thesaurus : a historical viewpoint, with a look to the future (2004) 0.02
    0.024089992 = product of:
      0.048179984 = sum of:
        0.048179984 = sum of:
          0.010739701 = weight(_text_:a in 5005) [ClassicSimilarity], result of:
            0.010739701 = score(doc=5005,freq=14.0), product of:
              0.053105544 = queryWeight, product of:
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046056706 = queryNorm
              0.20223314 = fieldWeight in 5005, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046875 = fieldNorm(doc=5005)
          0.037440285 = weight(_text_:22 in 5005) [ClassicSimilarity], result of:
            0.037440285 = score(doc=5005,freq=2.0), product of:
              0.16128273 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046056706 = queryNorm
              0.23214069 = fieldWeight in 5005, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=5005)
      0.5 = coord(1/2)
    
    Abstract
    After a period of experiment and evolution in the 1950s and 1960s, a fairly standard format for thesauri was established with the publication of the influential Thesaurus of Engineering and Scientific Terms (TEST) in 1967. This and other early thesauri relied primarily an the presentation of terms in alphabetical order. The value of a classified presentation was subsequently realised, and in particular the technique of facet analysis has profoundly influenced thesaurus evolution. Thesaurofacet and the Art & Architecture Thesaurus have acted as models for two distinct breeds of thesaurus using faceted displays of terms. As of the 1990s, the expansion of end-user access to vast networked resources is imposing further requirements an the style and structure of controlled vocabularies. The international standards for thesauri, first conceived in a print-based era, are badly in need of updating. Work is in hand in the UK and the USA to revise and develop standards in support of electronic thesauri.
    Date
    22. 9.2007 15:46:13
    Type
    a
  2. Aitchison, J.: ¬The thesaurofacet. A multipurpose retrieval language tool (1970) 0.00
    0.003827074 = product of:
      0.007654148 = sum of:
        0.007654148 = product of:
          0.015308296 = sum of:
            0.015308296 = weight(_text_:a in 460) [ClassicSimilarity], result of:
              0.015308296 = score(doc=460,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.28826174 = fieldWeight in 460, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.125 = fieldNorm(doc=460)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  3. Aitchison, J.: Integration of thesauri in the social sciences (1981) 0.00
    0.00270615 = product of:
      0.0054123 = sum of:
        0.0054123 = product of:
          0.0108246 = sum of:
            0.0108246 = weight(_text_:a in 3929) [ClassicSimilarity], result of:
              0.0108246 = score(doc=3929,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.20383182 = fieldWeight in 3929, 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=3929)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  4. Aitchison, J.: ¬A classification as a source for a thesaurus : the bibliographic classification of H.E. Bliss as a source of thesaurus terms and structure (1986) 0.00
    0.0026849252 = product of:
      0.0053698504 = sum of:
        0.0053698504 = product of:
          0.010739701 = sum of:
            0.010739701 = weight(_text_:a in 1569) [ClassicSimilarity], result of:
              0.010739701 = score(doc=1569,freq=14.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.20223314 = fieldWeight in 1569, product of:
                  3.7416575 = tf(freq=14.0), with freq of:
                    14.0 = termFreq=14.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1569)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The second edition of the Bibliographic Classidication of H.E. Bliss (BC2), being prepared under the editorship of Jack Mills, Vanda Broughton and others, is a rich source of structure and terminology for thesauri covering different subject fields. The new edition employs facet analysis and is thesaurus-compatible. A number of facet-based thesauri have drawn upon Bliss for terms and relationships. In two of these thesauri the Bliss Classification was the source of both systematic and alphabetical displays. The DHSS-DATA thesaurus, published by the United Kingdom Department of Health and Social Security, provides controlled terms and Bliss class numbers for indexing and searching the DHSS-DATA database. The ECOT thesaurus (Educational courses and occupations thesaurus) prepared for the Department of Education and Science, uses the software sedigned for the British Standards Institution ROOT thesaurus to genearte an alphabetical display from the systematic display derived from the Bliss schedules. Problems, benefits, and future prospects of Bliss-based thesaurus construction are discussed
    Type
    a
  5. Aitchison, J.: Bliss and the thesaurus : the bibliographic classification of H.E. Bliss as a source of thesaurus terms and structure (1986) 0.00
    0.0023919214 = product of:
      0.0047838427 = sum of:
        0.0047838427 = product of:
          0.009567685 = sum of:
            0.009567685 = weight(_text_:a in 1570) [ClassicSimilarity], result of:
              0.009567685 = score(doc=1570,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.18016359 = fieldWeight in 1570, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1570)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  6. Aitchison, J.; Gilchrist, A.: Thesaurus construction : a practical manual (1987) 0.00
    0.0023919214 = product of:
      0.0047838427 = sum of:
        0.0047838427 = product of:
          0.009567685 = sum of:
            0.009567685 = weight(_text_:a in 6869) [ClassicSimilarity], result of:
              0.009567685 = score(doc=6869,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.18016359 = fieldWeight in 6869, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.078125 = fieldNorm(doc=6869)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  7. Aitchison, J.: Indexing languages, classification schemes and thesauri (1982) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 706) [ClassicSimilarity], result of:
              0.009471525 = score(doc=706,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 706, 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=706)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  8. Aitchison, J.; Gilchrist, A.; Bawden, D.: Thesaurus construction and use : a practical manual (1997) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 255) [ClassicSimilarity], result of:
              0.007654148 = score(doc=255,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 255, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=255)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Aitchison, J.: Subject control : Thesaurus construction standards (1991) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 7930) [ClassicSimilarity], result of:
              0.007654148 = score(doc=7930,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 7930, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=7930)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Standards for the international exchange of bibliographic information: papers presented at a course held at the School of Library, Archive and Information Studies, University College, London, 3-18 August 1990. Ed.: I.C. McIlwaine
    Type
    a
  10. Aitchison, J.; Gilchrist, A.; Bawden, D.: Thesaurus construction and use : a practical manual (2000) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 130) [ClassicSimilarity], result of:
              0.007654148 = score(doc=130,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 130, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=130)
          0.5 = coord(1/2)
      0.5 = coord(1/2)