Search (2 results, page 1 of 1)

  • × author_ss:"Lancaster, F.W."
  • × theme_ss:"Retrievalstudien"
  • × type_ss:"a"
  1. Lancaster, F.W.; Connell, T.H.; Bishop, N.; McCowan, S.: Identifying barriers to effective subject access in library catalogs (1991) 0.01
    0.011486744 = product of:
      0.057433717 = sum of:
        0.057433717 = weight(_text_:n in 2259) [ClassicSimilarity], result of:
          0.057433717 = score(doc=2259,freq=2.0), product of:
            0.17223433 = queryWeight, product of:
              4.3116565 = idf(docFreq=1611, maxDocs=44218)
              0.03994621 = queryNorm
            0.33346266 = fieldWeight in 2259, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.3116565 = idf(docFreq=1611, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2259)
      0.2 = coord(1/5)
    
  2. Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961) 0.01
    0.0113570895 = product of:
      0.056785446 = sum of:
        0.056785446 = weight(_text_:u in 1931) [ClassicSimilarity], result of:
          0.056785446 = score(doc=1931,freq=2.0), product of:
            0.13080163 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03994621 = queryNorm
            0.43413407 = fieldWeight in 1931, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.09375 = fieldNorm(doc=1931)
      0.2 = coord(1/5)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.223-246.