Search (4 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"OPAC"
  1. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.01 
    0.005486114 = product of:
  0.010972228 = sum of:
    0.010972228 = product of:
      0.021944456 = sum of:
        0.021944456 = weight(_text_:m in 2731) [ClassicSimilarity], result of:
          0.021944456 = score(doc=2731,freq=2.0), product of:
            0.114023164 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.045820985 = queryNorm
            0.19245613 = fieldWeight in 2731, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2731)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  2. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.01 
    0.005486114 = product of:
  0.010972228 = sum of:
    0.010972228 = product of:
      0.021944456 = sum of:
        0.021944456 = weight(_text_:m in 430) [ClassicSimilarity], result of:
          0.021944456 = score(doc=430,freq=2.0), product of:
            0.114023164 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.045820985 = queryNorm
            0.19245613 = fieldWeight in 430, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=430)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  3. Hora, M.: Methoden für das Ranking in Discovery-Systemen (2018) 0.01 
    0.005486114 = product of:
  0.010972228 = sum of:
    0.010972228 = product of:
      0.021944456 = sum of:
        0.021944456 = weight(_text_:m in 4968) [ClassicSimilarity], result of:
          0.021944456 = score(doc=4968,freq=2.0), product of:
            0.114023164 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.045820985 = queryNorm
            0.19245613 = fieldWeight in 4968, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4968)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  4. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.01 
    0.005432097 = product of:
  0.010864194 = sum of:
    0.010864194 = product of:
      0.021728387 = sum of:
        0.021728387 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
          0.021728387 = score(doc=2509,freq=2.0), product of:
            0.16045728 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045820985 = queryNorm
            0.1354154 = fieldWeight in 2509, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02734375 = fieldNorm(doc=2509)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Electronic library. 22(2004) no.2, S.112-120

Authors

Years

Languages

Themes