Search (1 results, page 1 of 1)

  • × author_ss:"Robertson, S.E."
  • × language_ss:"e"
  • × year_i:[1960 TO 1970}
  1. Robertson, S.E.: ¬The parametric description of retrieval tests : Part I: The basic parameters (1969) 0.00
    3.381545E-4 = product of:
      0.0077775535 = sum of:
        0.0077775535 = product of:
          0.015555107 = sum of:
            0.015555107 = weight(_text_:1 in 4155) [ClassicSimilarity], result of:
              0.015555107 = score(doc=4155,freq=4.0), product of:
                0.057894554 = queryWeight, product of:
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.023567878 = queryNorm
                0.26867998 = fieldWeight in 4155, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  2.4565027 = idf(docFreq=10304, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4155)
          0.5 = coord(1/2)
      0.04347826 = coord(1/23)
    
    Source
    Journal of documentation. 25(1969) no.1, S.1-27