Search (3 results, page 1 of 1)

  • × author_ss:"Powles, J.A."
  • × theme_ss:"OPAC"
  1. Crawford, J.C.; Powles, J.A.: Inhouse (locally generated) subject indexes mounted on academic library OPACs (1991) 0.09
    0.08563171 = product of:
      0.17126343 = sum of:
        0.17126343 = product of:
          0.34252685 = sum of:
            0.34252685 = weight(_text_:j.c in 2202) [ClassicSimilarity], result of:
              0.34252685 = score(doc=2202,freq=2.0), product of:
                0.29233998 = queryWeight, product of:
                  6.627983 = idf(docFreq=158, maxDocs=44218)
                  0.04410693 = queryNorm
                1.1716729 = fieldWeight in 2202, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.627983 = idf(docFreq=158, maxDocs=44218)
                  0.125 = fieldNorm(doc=2202)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. 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) 0.04
    0.037463874 = product of:
      0.07492775 = sum of:
        0.07492775 = product of:
          0.1498555 = sum of:
            0.1498555 = weight(_text_:j.c in 367) [ClassicSimilarity], result of:
              0.1498555 = score(doc=367,freq=2.0), product of:
                0.29233998 = queryWeight, product of:
                  6.627983 = idf(docFreq=158, maxDocs=44218)
                  0.04410693 = queryNorm
                0.5126069 = fieldWeight in 367, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.627983 = idf(docFreq=158, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=367)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Crawford, J.C.; Thom, L.C.; Powles, J.A.: ¬A survey of subject access to academic library catalogues in Great Britain (1993) 0.03
    0.032111894 = product of:
      0.06422379 = sum of:
        0.06422379 = product of:
          0.12844758 = sum of:
            0.12844758 = weight(_text_:j.c in 5358) [ClassicSimilarity], result of:
              0.12844758 = score(doc=5358,freq=2.0), product of:
                0.29233998 = queryWeight, product of:
                  6.627983 = idf(docFreq=158, maxDocs=44218)
                  0.04410693 = queryNorm
                0.43937737 = fieldWeight in 5358, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.627983 = idf(docFreq=158, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5358)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    

Types