Search (23 results, page 1 of 2)

  • × theme_ss:"Verbale Doksprachen im Online-Retrieval"
  • × language_ss:"e"
  1. Frommeyer, J.: Chronological terms and period subdivisions in LCSH, RAMEAU, and RSWK : development of an integrative model for time retrieval across various online catalogs (2004) 0.02
    0.02240327 = product of:
      0.04480654 = sum of:
        0.04480654 = product of:
          0.06720981 = sum of:
            0.030349022 = weight(_text_:j in 131) [ClassicSimilarity], result of:
              0.030349022 = score(doc=131,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.21064025 = fieldWeight in 131, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=131)
            0.036860786 = weight(_text_:22 in 131) [ClassicSimilarity], result of:
              0.036860786 = score(doc=131,freq=2.0), product of:
                0.1587864 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534384 = queryNorm
                0.23214069 = fieldWeight in 131, 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=131)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    10. 9.2000 17:38:22
  2. Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009) 0.02
    0.02240327 = product of:
      0.04480654 = sum of:
        0.04480654 = product of:
          0.06720981 = sum of:
            0.030349022 = weight(_text_:j in 3837) [ClassicSimilarity], result of:
              0.030349022 = score(doc=3837,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.21064025 = fieldWeight in 3837, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3837)
            0.036860786 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
              0.036860786 = score(doc=3837,freq=2.0), product of:
                0.1587864 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534384 = queryNorm
                0.23214069 = fieldWeight in 3837, 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=3837)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    27. 8.2011 14:22:13
  3. Rood, J.: Practical considerations in dealing with LCSH-mr (1991) 0.01
    0.010116341 = product of:
      0.020232681 = sum of:
        0.020232681 = product of:
          0.060698044 = sum of:
            0.060698044 = weight(_text_:j in 2457) [ClassicSimilarity], result of:
              0.060698044 = score(doc=2457,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.4212805 = fieldWeight in 2457, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2457)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  4. Hoffman, H.: LCSH online (1987) 0.01
    0.00824617 = product of:
      0.01649234 = sum of:
        0.01649234 = product of:
          0.04947702 = sum of:
            0.04947702 = weight(_text_:h in 2901) [ClassicSimilarity], result of:
              0.04947702 = score(doc=2901,freq=2.0), product of:
                0.11265446 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.04534384 = queryNorm
                0.4391927 = fieldWeight in 2901, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.125 = fieldNorm(doc=2901)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  5. Lambert, N.: Of thesauri and computers : reflections on the need for thesauri (1995) 0.01
    0.008191286 = product of:
      0.016382571 = sum of:
        0.016382571 = product of:
          0.049147714 = sum of:
            0.049147714 = weight(_text_:22 in 3734) [ClassicSimilarity], result of:
              0.049147714 = score(doc=3734,freq=2.0), product of:
                0.1587864 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534384 = queryNorm
                0.30952093 = fieldWeight in 3734, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3734)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Searcher. 3(1995) no.8, S.18-22
  6. Stone, A.T.: Up-ending Cutter's pyramid : the case for making subject references to broader terms (1996) 0.01
    0.0071673747 = product of:
      0.014334749 = sum of:
        0.014334749 = product of:
          0.04300425 = sum of:
            0.04300425 = weight(_text_:22 in 7238) [ClassicSimilarity], result of:
              0.04300425 = score(doc=7238,freq=2.0), product of:
                0.1587864 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534384 = queryNorm
                0.2708308 = fieldWeight in 7238, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=7238)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 4.1997 20:43:23
  7. Congreve, J.: Problems of subject access : automatic generation of printed indexes and online thesaural control (1986) 0.01
    0.0067442274 = product of:
      0.013488455 = sum of:
        0.013488455 = product of:
          0.040465362 = sum of:
            0.040465362 = weight(_text_:j in 2305) [ClassicSimilarity], result of:
              0.040465362 = score(doc=2305,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.28085366 = fieldWeight in 2305, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2305)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  8. Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000) 0.01
    0.0061434647 = product of:
      0.012286929 = sum of:
        0.012286929 = product of:
          0.036860786 = sum of:
            0.036860786 = weight(_text_:22 in 5920) [ClassicSimilarity], result of:
              0.036860786 = score(doc=5920,freq=2.0), product of:
                0.1587864 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534384 = queryNorm
                0.23214069 = fieldWeight in 5920, 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=5920)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    27. 5.2001 16:22:21
  9. DeHart, F.E.; Glazier, J.: Computer searching on PRECIS : an exploration of measuring comparative retrieval effectiveness (1984) 0.01
    0.005901199 = product of:
      0.011802398 = sum of:
        0.011802398 = product of:
          0.035407193 = sum of:
            0.035407193 = weight(_text_:j in 828) [ClassicSimilarity], result of:
              0.035407193 = score(doc=828,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.24574696 = fieldWeight in 828, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=828)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  10. Ashton, J.; Kent, C.: New approaches to subject indexing at the British Library (2017) 0.01
    0.005901199 = product of:
      0.011802398 = sum of:
        0.011802398 = product of:
          0.035407193 = sum of:
            0.035407193 = weight(_text_:j in 5158) [ClassicSimilarity], result of:
              0.035407193 = score(doc=5158,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.24574696 = fieldWeight in 5158, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5158)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  11. Ashton, J.; Kent, C.: FAST: a journey toward sustainability in subject indexing at the British Library (2023) 0.01
    0.005901199 = product of:
      0.011802398 = sum of:
        0.011802398 = product of:
          0.035407193 = sum of:
            0.035407193 = weight(_text_:j in 1172) [ClassicSimilarity], result of:
              0.035407193 = score(doc=1172,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.24574696 = fieldWeight in 1172, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1172)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  12. Nicholson, J.; Lake, S.: Implementation of FAST in two digital repositories : breaking silos, unifying subject practices (2023) 0.01
    0.005901199 = product of:
      0.011802398 = sum of:
        0.011802398 = product of:
          0.035407193 = sum of:
            0.035407193 = weight(_text_:j in 1174) [ClassicSimilarity], result of:
              0.035407193 = score(doc=1174,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.24574696 = fieldWeight in 1174, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1174)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  13. Milstead, J.L.: Thesauri in a full-text world (1998) 0.01
    0.0051195538 = product of:
      0.0102391075 = sum of:
        0.0102391075 = product of:
          0.030717323 = sum of:
            0.030717323 = weight(_text_:22 in 2337) [ClassicSimilarity], result of:
              0.030717323 = score(doc=2337,freq=2.0), product of:
                0.1587864 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534384 = queryNorm
                0.19345059 = fieldWeight in 2337, 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=2337)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 9.1997 19:16:05
  14. Subject authorities in the online environment : papers from a conference program held in San Francisco, 29.6.1987 (1991) 0.01
    0.0050581703 = product of:
      0.010116341 = sum of:
        0.010116341 = product of:
          0.030349022 = sum of:
            0.030349022 = weight(_text_:j in 2215) [ClassicSimilarity], result of:
              0.030349022 = score(doc=2215,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.21064025 = fieldWeight in 2215, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2215)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Content
    Enthält u.a. die Beiträge: CHAN, L.M.: Functions of a subject authority file; ROOD, J.: Practical considerations in dealing with LCSH-mr; GARRISON, W.A.: Practical considerations in using the machine-readable LCSH; BISHOFF, L.: Public access to to the Library of Congress Subject Headings online; MANDEL, C.A.: Multiple vocabularies in subject authority control
  15. Principles underlying subject heading languages (SHLs) (1999) 0.01
    0.0050581703 = product of:
      0.010116341 = sum of:
        0.010116341 = product of:
          0.030349022 = sum of:
            0.030349022 = weight(_text_:j in 1659) [ClassicSimilarity], result of:
              0.030349022 = score(doc=1659,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.21064025 = fieldWeight in 1659, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1659)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Editor
    Lopes, M.I. u. J. Beall
  16. ¬The LCSH century : One hundred years with the Library of Congress Subject Headings system (2000) 0.00
    0.0047688885 = product of:
      0.009537777 = sum of:
        0.009537777 = product of:
          0.02861333 = sum of:
            0.02861333 = weight(_text_:j in 1224) [ClassicSimilarity], result of:
              0.02861333 = score(doc=1224,freq=4.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.19859353 = fieldWeight in 1224, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.03125 = fieldNorm(doc=1224)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Content
    Enthält die Beiträge: BACKGROUND: Alva T STONE: The LCSH Century: A Brief History of the Library of Congress Subject Headings, and Introduction to the Centennial Essays - THEORY AND PRINCIPLES: Elaine SVENONIUS: LCSH: Semantics, Syntax and Specificity; Heidi Lee HOERMAN u. Kevin A. FURNISS: Turning Practice into Principles: A Comparison of the IFLA: Principles Underlying Subject Heading Languages (SHLs) and the Principles Underlying the Library of Congress Subject Headings System; Hope A. OLSON: Difference, Culture and Change:The Untapped Potential of LCSH - ONLINE ENVIRONMENT: Pauline Atherton COCHRANE: Improving LCSH for Use in Online Catalogs Revisited-What Progress Has Been Made? What Issues Still Remain?; Gregory WOOL: Filing and Precoordination: How Subject Headings Are Displayed in Online Catalogs and Why It Matters; Stephen HEARN: Machine-Assisted Validation of LC Subject Headings: Implications for Authority File Structure - SPECIFIC PERSPECTIVES: Thomas MANN: Teaching Library of Congress Subject Headings; Louisa J. KREIDER: LCSH Works! Subject Searching Effectiveness at the Cleveland Public Library and the Growth of Library of Congress Subject Headings Through Cooperation; Harriette HEMMASI u J. Bradford YOUNG: LCSH for Music: Historical and Empirical Perspectives; Joseph MILLER u. Patricia KUHR: LCSH and Periodical Indexing: Adoption vs. Adaptation; David P MILLER: Out from Under: Form/Genre Access in LCSH - WORLD VIEW: Magda HEINER-FREILING: Survey on Subject Heading Languages Used in National Libraries and Bibliographies; Andrew MacEWAN: Crossing Language Barriers in Europe: Linking LCSH to Other Subject Heading Languages; Alvaro QUIJANO-SOLIS u.a.: Automated Authority Files of Spanish-Language Subject Headings - FUTURE PROSPECTS: Lois Mai CHAN u. Theodora HODGES: Entering the Millennium: a new century for LCSH
  17. ¬The LCSH century : One hundred years with the Library of Congress Subject Headings system (2000) 0.00
    0.0047688885 = product of:
      0.009537777 = sum of:
        0.009537777 = product of:
          0.02861333 = sum of:
            0.02861333 = weight(_text_:j in 5366) [ClassicSimilarity], result of:
              0.02861333 = score(doc=5366,freq=4.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.19859353 = fieldWeight in 5366, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.03125 = fieldNorm(doc=5366)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Content
    Enthält die Beiträge: BACKGROUND: Alva T STONE: The LCSH Century: A Brief History of the Library of Congress Subject Headings, and Introduction to the Centennial Essays - THEORY AND PRINCIPLES: Elaine SVENONIUS: LCSH: Semantics, Syntax and Specificity; Heidi Lee HOERMAN u. Kevin A. FURNISS: Turning Practice into Principles: A Comparison of the IFLA: Principles Underlying Subject Heading Languages (SHLs) and the Principles Underlying the Library of Congress Subject Headings System; Hope A. OLSON: Difference, Culture and Change:The Untapped Potential of LCSH - ONLINE ENVIRONMENT: Pauline Atherton COCHRANE: Improving LCSH for Use in Online Catalogs Revisited-What Progress Has Been Made? What Issues Still Remain?; Gregory WOOL: Filing and Precoordination: How Subject Headings Are Displayed in Online Catalogs and Why It Matters; Stephen HEARN: Machine-Assisted Validation of LC Subject Headings: Implications for Authority File Structure - SPECIFIC PERSPECTIVES: Thomas MANN: Teaching Library of Congress Subject Headings; Louisa J. KREIDER: LCSH Works! Subject Searching Effectiveness at the Cleveland Public Library and the Growth of Library of Congress Subject Headings Through Cooperation; Harriette HEMMASI u J. Bradford YOUNG: LCSH for Music: Historical and Empirical Perspectives; Joseph MILLER u. Patricia KUHR: LCSH and Periodical Indexing: Adoption vs. Adaptation; David P MILLER: Out from Under: Form/Genre Access in LCSH - WORLD VIEW: Magda HEINER-FREILING: Survey on Subject Heading Languages Used in National Libraries and Bibliographies; Andrew MacEWAN: Crossing Language Barriers in Europe: Linking LCSH to Other Subject Heading Languages; Alvaro QUIJANO-SOLIS u.a.: Automated Authority Files of Spanish-Language Subject Headings - FUTURE PROSPECTS: Lois Mai CHAN u. Theodora HODGES: Entering the Millennium: a new century for LCSH
  18. Mixter, J.; Childress, E.R.: FAST (Faceted Application of Subject Terminology) users : summary and case studies (2013) 0.00
    0.0042151418 = product of:
      0.0084302835 = sum of:
        0.0084302835 = product of:
          0.02529085 = sum of:
            0.02529085 = weight(_text_:j in 2011) [ClassicSimilarity], result of:
              0.02529085 = score(doc=2011,freq=2.0), product of:
                0.14407988 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534384 = queryNorm
                0.17553353 = fieldWeight in 2011, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2011)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  19. Svenonius, E.: Precoordination or not? (1995) 0.00
    0.004123085 = product of:
      0.00824617 = sum of:
        0.00824617 = product of:
          0.02473851 = sum of:
            0.02473851 = weight(_text_:h in 3606) [ClassicSimilarity], result of:
              0.02473851 = score(doc=3606,freq=2.0), product of:
                0.11265446 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.04534384 = queryNorm
                0.21959636 = fieldWeight in 3606, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3606)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Vgl. auch die deutsche Übersetzung in: ZfBB (1994) H.3, S.294-297
  20. Intelligent information systems: progress and prospects (1986) 0.00
    0.0036076994 = product of:
      0.007215399 = sum of:
        0.007215399 = product of:
          0.021646196 = sum of:
            0.021646196 = weight(_text_:h in 1050) [ClassicSimilarity], result of:
              0.021646196 = score(doc=1050,freq=2.0), product of:
                0.11265446 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.04534384 = queryNorm
                0.19214681 = fieldWeight in 1050, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1050)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Content
    Enthält die Beiträge: SOMMERVILLE, I., M. WOOD: A software components catalogue; COELHO, H.: Library manager: a case study in knowledge engineering; DAVIES, R.: Cataloguing as a domain for an expert system; POLLITT, A.S.: A rule-base system as an intermediary for searching cancer therapy literature on MEDLINE; LEBOWITZ, M.: An experiment in intelligent information systems: RESEARCHER; VICKERY, A., H.M. BROOKS u. B.C. VICKERY: An expert system for referral: the PLEXUS project; RICH, E.: Users are individuals: individualizing user models; INGWERSEN, P.: Cognitive analysis and the role of the intermediary in information retrieval; SHAW, M.L.G. u. B.R. GAINES: A cognitive model for intelligent information systems; DAVIES, R.: Classification and ratiocination: a perennial quest