Search (5 results, page 1 of 1)

  • × author_ss:"O'Brien, A."
  • × theme_ss:"OPAC"
  1. Kreslins, K.; O'Brien, A.; Smith, I.A.: Online public access catalogues in Latvia : strategies for subject access (1994) 0.01
    0.014375451 = product of:
      0.043126352 = sum of:
        0.0060165 = weight(_text_:e in 8185) [ClassicSimilarity], result of:
          0.0060165 = score(doc=8185,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.12704675 = fieldWeight in 8185, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0625 = fieldNorm(doc=8185)
        0.03710985 = weight(_text_:k in 8185) [ClassicSimilarity], result of:
          0.03710985 = score(doc=8185,freq=2.0), product of:
            0.11761237 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.03294669 = queryNorm
            0.31552678 = fieldWeight in 8185, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.0625 = fieldNorm(doc=8185)
      0.33333334 = coord(2/6)
    
    Language
    e
  2. Ramesh Babu, B.; O'Brien, A.: Web OPAC interfaces : an overview (2000) 0.00
    0.0017548124 = product of:
      0.010528875 = sum of:
        0.010528875 = weight(_text_:e in 768) [ClassicSimilarity], result of:
          0.010528875 = score(doc=768,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.2223318 = fieldWeight in 768, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.109375 = fieldNorm(doc=768)
      0.16666667 = coord(1/6)
    
    Language
    e
  3. O'Brien, A.: Relevance as an aid to evaluation in OPACs (1990) 0.00
    8.774062E-4 = product of:
      0.0052644373 = sum of:
        0.0052644373 = weight(_text_:e in 2133) [ClassicSimilarity], result of:
          0.0052644373 = score(doc=2133,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.1111659 = fieldWeight in 2133, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2133)
      0.16666667 = coord(1/6)
    
    Language
    e
  4. Husain, S.; O'Brien, A.: Recent trends in subject access to OPACs : an evaluation (1992) 0.00
    7.520625E-4 = product of:
      0.0045123748 = sum of:
        0.0045123748 = weight(_text_:e in 2373) [ClassicSimilarity], result of:
          0.0045123748 = score(doc=2373,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.09528506 = fieldWeight in 2373, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=2373)
      0.16666667 = coord(1/6)
    
    Language
    e
  5. Tinker, A.J.; Pollitt, A.S.; O'Brien, A.; Braekevelt, P.A.: ¬The Dewey Decimal Classification and the transition from physical to electronic knowledge organisation (1999) 0.00
    5.01375E-4 = product of:
      0.00300825 = sum of:
        0.00300825 = weight(_text_:e in 4468) [ClassicSimilarity], result of:
          0.00300825 = score(doc=4468,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.063523374 = fieldWeight in 4468, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03125 = fieldNorm(doc=4468)
      0.16666667 = coord(1/6)
    
    Language
    e