Search (3 results, page 1 of 1)

  • × author_ss:"Swanson, D.R."
  • × language_ss:"e"
  • × year_i:[1970 TO 1980}
  1. Swanson, D.R.: Requirements study for future catalogs (1972) 0.01
    0.010445932 = product of:
      0.031337794 = sum of:
        0.031337794 = product of:
          0.06267559 = sum of:
            0.06267559 = weight(_text_:library in 680) [ClassicSimilarity], result of:
              0.06267559 = score(doc=680,freq=2.0), product of:
                0.13484047 = queryWeight, product of:
                  2.6293786 = idf(docFreq=8668, maxDocs=44218)
                  0.051282257 = queryNorm
                0.46481284 = fieldWeight in 680, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.6293786 = idf(docFreq=8668, maxDocs=44218)
                  0.125 = fieldNorm(doc=680)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Library quarterly. 42(1972), S.302-315
  2. Swanson, D.R.: Some unexplained aspects of the Cranfield tests of indexing performance factors (1971) 0.01
    0.010445932 = product of:
      0.031337794 = sum of:
        0.031337794 = product of:
          0.06267559 = sum of:
            0.06267559 = weight(_text_:library in 2337) [ClassicSimilarity], result of:
              0.06267559 = score(doc=2337,freq=2.0), product of:
                0.13484047 = queryWeight, product of:
                  2.6293786 = idf(docFreq=8668, maxDocs=44218)
                  0.051282257 = queryNorm
                0.46481284 = fieldWeight in 2337, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.6293786 = idf(docFreq=8668, maxDocs=44218)
                  0.125 = fieldNorm(doc=2337)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Library quarterly. 41(1971), S.223-228
  3. Swanson, D.R.: Information retrieval as a trial-and-error process (1977) 0.01
    0.007834448 = product of:
      0.023503343 = sum of:
        0.023503343 = product of:
          0.047006685 = sum of:
            0.047006685 = weight(_text_:library in 1291) [ClassicSimilarity], result of:
              0.047006685 = score(doc=1291,freq=2.0), product of:
                0.13484047 = queryWeight, product of:
                  2.6293786 = idf(docFreq=8668, maxDocs=44218)
                  0.051282257 = queryNorm
                0.34860963 = fieldWeight in 1291, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.6293786 = idf(docFreq=8668, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1291)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Library quarterly. 47(1977), S.128-148