Search (9 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Gauch, S.; Wang, J.: Corpus analysis for TREC 5 query expansion (1997) 0.00
    0.002089573 = product of:
      0.004179146 = sum of:
        0.004179146 = product of:
          0.008358292 = sum of:
            0.008358292 = weight(_text_:s in 5800) [ClassicSimilarity], result of:
              0.008358292 = score(doc=5800,freq=4.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    S.537-546
  2. 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) 0.00
    0.0012312926 = product of:
      0.0024625852 = sum of:
        0.0024625852 = product of:
          0.0049251704 = sum of:
            0.0049251704 = weight(_text_:s in 7000) [ClassicSimilarity], result of:
              0.0049251704 = score(doc=7000,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    S.373-389
  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
    0.0012189177 = product of:
      0.0024378353 = sum of:
        0.0024378353 = product of:
          0.0048756707 = sum of:
            0.0048756707 = weight(_text_:s in 6964) [ClassicSimilarity], result of:
              0.0048756707 = score(doc=6964,freq=4.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      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
    9.850342E-4 = product of:
      0.0019700683 = sum of:
        0.0019700683 = product of:
          0.0039401366 = sum of:
            0.0039401366 = weight(_text_:s in 5689) [ClassicSimilarity], result of:
              0.0039401366 = score(doc=5689,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      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
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 5202) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=5202,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      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
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 5696) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=5696,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      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
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 5699) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=5699,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      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
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 2263) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=2263,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      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
    6.156463E-4 = product of:
      0.0012312926 = sum of:
        0.0012312926 = product of:
          0.0024625852 = sum of:
            0.0024625852 = weight(_text_:s in 5159) [ClassicSimilarity], result of:
              0.0024625852 = score(doc=5159,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of library and information science. 24(1998) no.1, S.1-18