Search (13 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × type_ss:"r"
  • × year_i:[1990 TO 2000}
  1. Walker, S.; Hancock-Beaulieu, M.: OKAPI at city : an evaluation facility for interactive IR (1991) 0.02
    0.02207961 = product of:
      0.04415922 = sum of:
        0.04415922 = product of:
          0.08831844 = sum of:
            0.08831844 = weight(_text_:r in 2702) [ClassicSimilarity], result of:
              0.08831844 = score(doc=2702,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.5851765 = fieldWeight in 2702, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.125 = fieldNorm(doc=2702)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  2. Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 0.02
    0.019515803 = product of:
      0.039031606 = sum of:
        0.039031606 = product of:
          0.07806321 = sum of:
            0.07806321 = weight(_text_:r in 1816) [ClassicSimilarity], result of:
              0.07806321 = score(doc=1816,freq=4.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.5172279 = fieldWeight in 1816, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1816)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  3. Hancock-Beaulieu, M.; Robertson, S.E.; Neilson, C.: Evaluation of online catalogues : an assessment of methods (1990) 0.02
    0.01931966 = product of:
      0.03863932 = sum of:
        0.03863932 = product of:
          0.07727864 = sum of:
            0.07727864 = weight(_text_:r in 5262) [ClassicSimilarity], result of:
              0.07727864 = score(doc=5262,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.51202947 = fieldWeight in 5262, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5262)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  4. Hancock-Beaulieu, M.; McKenzie, L.; Irving, A.: Evaluative protocols for searching behaviour in online library catalogues (1991) 0.02
    0.01931966 = product of:
      0.03863932 = sum of:
        0.03863932 = product of:
          0.07727864 = sum of:
            0.07727864 = weight(_text_:r in 347) [ClassicSimilarity], result of:
              0.07727864 = score(doc=347,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.51202947 = fieldWeight in 347, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.109375 = fieldNorm(doc=347)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  5. Bowman, S.; Avey, F.D.; Turner, C.: ¬A comparative study of the impact of Online Public Access Catalogues on the information gathering and utilisation habits of different user groups (1991) 0.01
    0.011039805 = product of:
      0.02207961 = sum of:
        0.02207961 = product of:
          0.04415922 = sum of:
            0.04415922 = weight(_text_:r in 4545) [ClassicSimilarity], result of:
              0.04415922 = score(doc=4545,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.29258826 = fieldWeight in 4545, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4545)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  6. Ayres, F.H.: QUALCAT : automation of quality control in cataloguing (1994) 0.01
    0.011039805 = product of:
      0.02207961 = sum of:
        0.02207961 = product of:
          0.04415922 = sum of:
            0.04415922 = weight(_text_:r in 863) [ClassicSimilarity], result of:
              0.04415922 = score(doc=863,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.29258826 = fieldWeight in 863, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0625 = fieldNorm(doc=863)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  7. Külper, U.; Will, G.: ¬Das Projekt Bücherschatz : interdisziplinäre und partizipative Entwicklung eines kindgerechten Bibliotheks-Online-Kataloges (1996) 0.01
    0.00965983 = product of:
      0.01931966 = sum of:
        0.01931966 = product of:
          0.03863932 = sum of:
            0.03863932 = weight(_text_:r in 4725) [ClassicSimilarity], result of:
              0.03863932 = score(doc=4725,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.25601473 = fieldWeight in 4725, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4725)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  8. Ayres, F.H.: ¬The Bradford OPAC : a new concept in bibliographic control (1995) 0.01
    0.00965983 = product of:
      0.01931966 = sum of:
        0.01931966 = product of:
          0.03863932 = sum of:
            0.03863932 = weight(_text_:r in 6294) [ClassicSimilarity], result of:
              0.03863932 = score(doc=6294,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.25601473 = fieldWeight in 6294, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=6294)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  9. Crawford, J.C.; Thorn, L.C.; Powles, J.A.: ¬A survey of subject access to academic library catalogues in Great Britain : a report to the British Library Research and Development Department (1992) 0.01
    0.00965983 = product of:
      0.01931966 = sum of:
        0.01931966 = product of:
          0.03863932 = sum of:
            0.03863932 = weight(_text_:r in 367) [ClassicSimilarity], result of:
              0.03863932 = score(doc=367,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.25601473 = fieldWeight in 367, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=367)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  10. Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬A graphical interface for OKAPI : the design and evaluation of an online catalogue system with direct manipulation interaction for subject access (1994) 0.01
    0.00965983 = product of:
      0.01931966 = sum of:
        0.01931966 = product of:
          0.03863932 = sum of:
            0.03863932 = weight(_text_:r in 1318) [ClassicSimilarity], result of:
              0.03863932 = score(doc=1318,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.25601473 = fieldWeight in 1318, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1318)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  11. Ayres, F.H.; Nielsen, L.P.S.; Ridley, M.J.: ¬The Bradford OPAC2 : Managing and displaying retrievals from a distributed search in Z39.50 (1998) 0.01
    0.00965983 = product of:
      0.01931966 = sum of:
        0.01931966 = product of:
          0.03863932 = sum of:
            0.03863932 = weight(_text_:r in 1787) [ClassicSimilarity], result of:
              0.03863932 = score(doc=1787,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.25601473 = fieldWeight in 1787, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1787)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  12. Beaulieu, M.; Payne, A.; Do, T.; Jones, S.: ENQUIRE Okapi project (1996) 0.01
    0.0082798535 = product of:
      0.016559707 = sum of:
        0.016559707 = product of:
          0.033119414 = sum of:
            0.033119414 = weight(_text_:r in 3369) [ClassicSimilarity], result of:
              0.033119414 = score(doc=3369,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.2194412 = fieldWeight in 3369, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3369)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r
  13. Murphy, F.J.; Pollitt, A.S.; White, P.R.: Matching OPAC user interfaces to user needs (1991) 0.01
    0.0082798535 = product of:
      0.016559707 = sum of:
        0.016559707 = product of:
          0.033119414 = sum of:
            0.033119414 = weight(_text_:r in 2772) [ClassicSimilarity], result of:
              0.033119414 = score(doc=2772,freq=2.0), product of:
                0.15092614 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.045593463 = queryNorm
                0.2194412 = fieldWeight in 2772, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2772)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    r