Search (9 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Smeaton, A.F.; Kelledy, L.; O'Donnell, R.: TREC-4 experiments at Dublin City University : thresholding posting lists, query expansion with WordNet and POS tagging of Spanish (1996) 0.02 
    0.023310876 = product of:
  0.04662175 = sum of:
    0.04662175 = product of:
      0.069932625 = sum of:
        0.063996255 = weight(_text_:k in 7000) [ClassicSimilarity], result of:
          0.063996255 = score(doc=7000,freq=2.0), product of:
            0.16225883 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.04545348 = queryNorm
            0.39440846 = fieldWeight in 7000, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.078125 = fieldNorm(doc=7000)
        0.0059363716 = weight(_text_:s in 7000) [ClassicSimilarity], result of:
          0.0059363716 = score(doc=7000,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.120123915 = fieldWeight in 7000, 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=7000)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Pages
    S.373-389
    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  2. Gauch, S.; Wang, J.: Corpus analysis for TREC 5 query expansion (1997) 0.00 
    0.0016790595 = product of:
  0.003358119 = sum of:
    0.003358119 = product of:
      0.010074357 = sum of:
        0.010074357 = weight(_text_:s in 5800) [ClassicSimilarity], result of:
          0.010074357 = score(doc=5800,freq=4.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.20385705 = fieldWeight in 5800, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5800)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Pages
    S.537-546
  3. Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995) 0.00 
    9.794515E-4 = product of:
  0.001958903 = sum of:
    0.001958903 = product of:
      0.0058767083 = sum of:
        0.0058767083 = weight(_text_:s in 6964) [ClassicSimilarity], result of:
          0.0058767083 = score(doc=6964,freq=4.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.118916616 = fieldWeight in 6964, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6964)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Information processing and management. 31(1995) no.3, S.345-360
  4. Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992) 0.00 
    7.915163E-4 = product of:
  0.0015830325 = sum of:
    0.0015830325 = product of:
      0.0047490974 = sum of:
        0.0047490974 = weight(_text_:s in 5689) [ClassicSimilarity], result of:
          0.0047490974 = score(doc=5689,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.09609913 = fieldWeight in 5689, 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=5689)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Journal of information science. 18(1992) no.2, S.139-147
  5. Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998) 0.00 
    5.936372E-4 = product of:
  0.0011872743 = sum of:
    0.0011872743 = product of:
      0.003561823 = sum of:
        0.003561823 = weight(_text_:s in 5202) [ClassicSimilarity], result of:
          0.003561823 = score(doc=5202,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.072074346 = fieldWeight in 5202, 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=5202)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science. 49(1998) no.3, S.206-216
  6. Kwok, K.L.: ¬A network approach to probabilistic information retrieval (1995) 0.00 
    5.936372E-4 = product of:
  0.0011872743 = sum of:
    0.0011872743 = product of:
      0.003561823 = sum of:
        0.003561823 = weight(_text_:s in 5696) [ClassicSimilarity], result of:
          0.003561823 = score(doc=5696,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.072074346 = fieldWeight in 5696, 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=5696)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    ACM transactions on information systems. 13(1995) no.3, S.324-353
  7. Buckley, C.; Allan, J.; Salton, G.: Automatic routing and retrieval using Smart : TREC-2 (1995) 0.00 
    5.936372E-4 = product of:
  0.0011872743 = sum of:
    0.0011872743 = product of:
      0.003561823 = sum of:
        0.003561823 = weight(_text_:s in 5699) [ClassicSimilarity], result of:
          0.003561823 = score(doc=5699,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.072074346 = fieldWeight in 5699, 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=5699)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Information processing and management. 31(1995) no.3, S.315-326
  8. Colace, F.; Santo, M. de; Greco, L.; Napoletano, P.: Improving relevance feedback-based query expansion by the use of a weighted word pairs approach (2015) 0.00 
    5.936372E-4 = product of:
  0.0011872743 = sum of:
    0.0011872743 = product of:
      0.003561823 = sum of:
        0.003561823 = weight(_text_:s in 2263) [ClassicSimilarity], result of:
          0.003561823 = score(doc=2263,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.072074346 = fieldWeight in 2263, 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=2263)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.11, S.2223-2234
  9. Tseng, Y.-H.: Solving vocabulary problems with interactive query expansion (1998) 0.00 
    4.9469766E-4 = product of:
  9.893953E-4 = sum of:
    9.893953E-4 = product of:
      0.0029681858 = sum of:
        0.0029681858 = weight(_text_:s in 5159) [ClassicSimilarity], result of:
          0.0029681858 = score(doc=5159,freq=2.0), product of:
            0.049418733 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04545348 = queryNorm
            0.060061958 = fieldWeight in 5159, 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=5159)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Journal of library and information science. 24(1998) no.1, S.1-18

Authors

Years

Languages

Themes