Search (1 results, page 1 of 1)

  • × author_ss:"Ro, J.S."
  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"Volltextretrieval"
  1. Ro, J.S.: ¬An evaluation of the applicability of ranking algorithms to improve the effectiveness of full-text retrieval : 1. On the effectiveness of full-text retrieval (1988) 0.01
    0.005149705 = product of:
      0.02059882 = sum of:
        0.02059882 = weight(_text_:information in 4030) [ClassicSimilarity], result of:
          0.02059882 = score(doc=4030,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.23274569 = fieldWeight in 4030, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=4030)
      0.25 = coord(1/4)
    
    Source
    Journal of the American Society for Information Science. 39(1988), S.73-78