Search (6 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
    0.020832337 = product of:
  0.041664675 = sum of:
    0.041664675 = product of:
      0.08332935 = sum of:
        0.08332935 = weight(_text_:22 in 2133) [ClassicSimilarity], result of:
          0.08332935 = score(doc=2133,freq=2.0), product of:
            0.15379639 = queryWeight, product of:
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.043906346 = queryNorm
            0.54181606 = fieldWeight in 2133, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.109375 = fieldNorm(doc=2133)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    30. 3.2001 13:32:22
  2. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01 
    0.010416169 = product of:
  0.020832337 = sum of:
    0.020832337 = product of:
      0.041664675 = sum of:
        0.041664675 = weight(_text_:22 in 2319) [ClassicSimilarity], result of:
          0.041664675 = score(doc=2319,freq=2.0), product of:
            0.15379639 = queryWeight, product of:
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.043906346 = queryNorm
            0.27090803 = fieldWeight in 2319, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.0546875 = fieldNorm(doc=2319)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 8.1996 22:08:06
  3. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.01 
    0.008928145 = product of:
  0.01785629 = sum of:
    0.01785629 = product of:
      0.03571258 = sum of:
        0.03571258 = weight(_text_:22 in 3419) [ClassicSimilarity], result of:
          0.03571258 = score(doc=3419,freq=2.0), product of:
            0.15379639 = queryWeight, product of:
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.043906346 = queryNorm
            0.23220688 = fieldWeight in 3419, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.046875 = fieldNorm(doc=3419)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    16.11.2008 16:22:48
  4. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01 
    0.007440121 = product of:
  0.014880242 = sum of:
    0.014880242 = product of:
      0.029760484 = sum of:
        0.029760484 = weight(_text_:22 in 6697) [ClassicSimilarity], result of:
          0.029760484 = score(doc=6697,freq=2.0), product of:
            0.15379639 = queryWeight, product of:
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.043906346 = queryNorm
            0.19350573 = fieldWeight in 6697, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.0390625 = fieldNorm(doc=6697)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 2.1996 13:14:10
  5. Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003) 0.01 
    0.007440121 = product of:
  0.014880242 = sum of:
    0.014880242 = product of:
      0.029760484 = sum of:
        0.029760484 = weight(_text_:22 in 2428) [ClassicSimilarity], result of:
          0.029760484 = score(doc=2428,freq=2.0), product of:
            0.15379639 = queryWeight, product of:
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.043906346 = queryNorm
            0.19350573 = fieldWeight in 2428, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.0390625 = fieldNorm(doc=2428)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:35:46
  6. Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006) 0.01 
    0.007440121 = product of:
  0.014880242 = sum of:
    0.014880242 = product of:
      0.029760484 = sum of:
        0.029760484 = weight(_text_:22 in 1056) [ClassicSimilarity], result of:
          0.029760484 = score(doc=1056,freq=2.0), product of:
            0.15379639 = queryWeight, product of:
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.043906346 = queryNorm
            0.19350573 = fieldWeight in 1056, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5028281 = idf(docFreq=3635, maxDocs=44421)
              0.0390625 = fieldNorm(doc=1056)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 7.2006 16:32:43

Authors

Years

Themes