Search (6 results, page 1 of 1)

  • × author_ss:"Efthimiadis, E.N."
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994) 0.03
    0.027370533 = product of:
      0.054741066 = sum of:
        0.054741066 = sum of:
          0.004812876 = weight(_text_:s in 5693) [ClassicSimilarity], result of:
            0.004812876 = score(doc=5693,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.09609913 = fieldWeight in 5693, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0625 = fieldNorm(doc=5693)
          0.04992819 = weight(_text_:22 in 5693) [ClassicSimilarity], result of:
            0.04992819 = score(doc=5693,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    30. 3.2001 13:35:22
    Pages
    S.295-303
  2. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.02
    0.017106583 = product of:
      0.034213167 = sum of:
        0.034213167 = sum of:
          0.0030080476 = weight(_text_:s in 5697) [ClassicSimilarity], result of:
            0.0030080476 = score(doc=5697,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = 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)
          0.03120512 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
            0.03120512 = score(doc=5697,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    22. 2.1996 13:14:10
    Source
    Information processing and management. 31(1995) no.4, S.605-620
  3. Efthimiadis, E.N.: Approaches to search formulation and query expansion in information systems : DRS, DBMS, ES (1992) 0.00
    0.0015040238 = product of:
      0.0030080476 = sum of:
        0.0030080476 = product of:
          0.006016095 = sum of:
            0.006016095 = weight(_text_:s in 3871) [ClassicSimilarity], result of:
              0.006016095 = score(doc=3871,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.120123915 = fieldWeight in 3871, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3871)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    105 S
  4. Efthimiadis, E.N.: Query expansion (1996) 0.00
    0.001203219 = product of:
      0.002406438 = sum of:
        0.002406438 = product of:
          0.004812876 = sum of:
            0.004812876 = weight(_text_:s in 4847) [ClassicSimilarity], result of:
              0.004812876 = score(doc=4847,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.09609913 = fieldWeight in 4847, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4847)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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
    9.0241426E-4 = product of:
      0.0018048285 = sum of:
        0.0018048285 = product of:
          0.003609657 = sum of:
            0.003609657 = weight(_text_:s in 5695) [ClassicSimilarity], result of:
              0.003609657 = score(doc=5695,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.072074346 = fieldWeight in 5695, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5695)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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
    6.016095E-4 = product of:
      0.001203219 = sum of:
        0.001203219 = product of:
          0.002406438 = sum of:
            0.002406438 = weight(_text_:s in 5701) [ClassicSimilarity], result of:
              0.002406438 = score(doc=5701,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science. 51(2000) no.11, S.989-1003