Search (2 results, page 1 of 1)

  • × author_ss:"Efthimiadis, E.N."
  • × theme_ss:"Retrievalalgorithmen"
  1. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01
    0.0124987215 = product of:
      0.024997443 = sum of:
        0.024997443 = product of:
          0.037496164 = sum of:
            0.0032966915 = weight(_text_:s in 5697) [ClassicSimilarity], result of:
              0.0032966915 = score(doc=5697,freq=2.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.060061958 = fieldWeight in 5697, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5697)
            0.034199473 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.034199473 = score(doc=5697,freq=2.0), product of:
                0.1767866 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05048407 = queryNorm
                0.19345059 = fieldWeight in 5697, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5697)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 13:14:10
    Source
    Information processing and management. 31(1995) no.4, S.605-620
  2. Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.00
    4.3955885E-4 = product of:
      8.791177E-4 = sum of:
        8.791177E-4 = product of:
          0.002637353 = sum of:
            0.002637353 = weight(_text_:s in 5701) [ClassicSimilarity], result of:
              0.002637353 = score(doc=5701,freq=2.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.048049565 = fieldWeight in 5701, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03125 = fieldNorm(doc=5701)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science. 51(2000) no.11, S.989-1003