Search (6 results, page 1 of 1)

  • × author_ss:"Efthimiadis, E.N."
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01
    0.0074620256 = product of:
      0.022386076 = sum of:
        0.007487943 = weight(_text_:information in 5697) [ClassicSimilarity], result of:
          0.007487943 = score(doc=5697,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.09697737 = fieldWeight in 5697, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5697)
        0.0148981325 = product of:
          0.029796265 = sum of:
            0.029796265 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.029796265 = score(doc=5697,freq=2.0), product of:
                0.1540252 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043984205 = 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)
          0.5 = coord(1/2)
      0.33333334 = coord(2/6)
    
    Date
    22. 2.1996 13:14:10
    Source
    Information processing and management. 31(1995) no.4, S.605-620
  2. Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994) 0.00
    0.0039728354 = product of:
      0.023837011 = sum of:
        0.023837011 = product of:
          0.047674023 = sum of:
            0.047674023 = weight(_text_:22 in 5693) [ClassicSimilarity], result of:
              0.047674023 = score(doc=5693,freq=2.0), product of:
                0.1540252 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043984205 = queryNorm
                0.30952093 = fieldWeight in 5693, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5693)
          0.5 = coord(1/2)
      0.16666667 = coord(1/6)
    
    Date
    30. 3.2001 13:35:22
  3. Efthimiadis, E.N.: Approaches to search formulation and query expansion in information systems : DRS, DBMS, ES (1992) 0.00
    0.002495981 = product of:
      0.014975886 = sum of:
        0.014975886 = weight(_text_:information in 3871) [ClassicSimilarity], result of:
          0.014975886 = score(doc=3871,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.19395474 = fieldWeight in 3871, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=3871)
      0.16666667 = coord(1/6)
    
  4. Efthimiadis, E.N.: Query expansion (1996) 0.00
    0.001996785 = product of:
      0.011980709 = sum of:
        0.011980709 = weight(_text_:information in 4847) [ClassicSimilarity], result of:
          0.011980709 = score(doc=4847,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.1551638 = fieldWeight in 4847, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=4847)
      0.16666667 = coord(1/6)
    
    Source
    Annual review of information science and technology. 31(1996), S.121-187
  5. Fidel, R.; Efthimiadis, E.N.: Terminological knowledge structure for intermediary expert systems (1995) 0.00
    0.0014975886 = product of:
      0.0089855315 = sum of:
        0.0089855315 = weight(_text_:information in 5695) [ClassicSimilarity], result of:
          0.0089855315 = score(doc=5695,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.116372846 = fieldWeight in 5695, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=5695)
      0.16666667 = coord(1/6)
    
    Source
    Information processing and management. 31(1995) no.1, S.15-27
  6. Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.00
    9.983925E-4 = product of:
      0.0059903543 = sum of:
        0.0059903543 = weight(_text_:information in 5701) [ClassicSimilarity], result of:
          0.0059903543 = score(doc=5701,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.0775819 = fieldWeight in 5701, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=5701)
      0.16666667 = coord(1/6)
    
    Source
    Journal of the American Society for Information Science. 51(2000) no.11, S.989-1003