Search (2 results, page 1 of 1)

  • × author_ss:"Robertson, S.E."
  • × type_ss:"r"
  1. Hancock-Beaulieu, M.; Robertson, S.E.; Neilson, C.: Evaluation of online catalogues : an assessment of methods (1990) 0.01
    0.0051992363 = product of:
      0.02599618 = sum of:
        0.02599618 = weight(_text_:of in 5262) [ClassicSimilarity], result of:
          0.02599618 = score(doc=5262,freq=4.0), product of:
            0.07599624 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.04859849 = queryNorm
            0.34207192 = fieldWeight in 5262, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.109375 = fieldNorm(doc=5262)
      0.2 = coord(1/5)
    
  2. Robertson, S.E.; Thompson, C.L.: ¬An operational evaluation of weighting, ranking and relevance feedback via a front-end system (1987) 0.00
    0.0036764152 = product of:
      0.018382076 = sum of:
        0.018382076 = weight(_text_:of in 3858) [ClassicSimilarity], result of:
          0.018382076 = score(doc=3858,freq=2.0), product of:
            0.07599624 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.04859849 = queryNorm
            0.24188137 = fieldWeight in 3858, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.109375 = fieldNorm(doc=3858)
      0.2 = coord(1/5)