Search (1 results, page 1 of 1)

  • × author_ss:"Porter, M."
  • × theme_ss:"OPAC"
  1. Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988) 0.01
    0.007439235 = product of:
      0.04463541 = sum of:
        0.04463541 = weight(_text_:22 in 4165) [ClassicSimilarity], result of:
          0.04463541 = score(doc=4165,freq=2.0), product of:
            0.14420806 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041180775 = queryNorm
            0.30952093 = fieldWeight in 4165, 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=4165)
      0.16666667 = coord(1/6)
    
    Source
    Program. 22(1988), S.1-20