Search (9 results, page 1 of 1)

  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × theme_ss:"Retrievalstudien"
  1. Kwok, K.L.: ¬A network approach to probabilistic information retrieval (1995) 0.01
    0.009415352 = product of:
      0.014123027 = sum of:
        0.003145897 = weight(_text_:s in 5696) [ClassicSimilarity], result of:
          0.003145897 = score(doc=5696,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
        0.01097713 = product of:
          0.03293139 = sum of:
            0.03293139 = weight(_text_:29 in 5696) [ClassicSimilarity], result of:
              0.03293139 = score(doc=5696,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.23319192 = fieldWeight in 5696, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5696)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 1.1996 18:42:14
    Source
    ACM transactions on information systems. 13(1995) no.3, S.324-353
  2. Gauch, S.; Wang, J.: Corpus analysis for TREC 5 query expansion (1997) 0.00
    0.0029659807 = product of:
      0.008897942 = sum of:
        0.008897942 = weight(_text_:s in 5800) [ClassicSimilarity], result of:
          0.008897942 = score(doc=5800,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    Pages
    S.537-546
  3. 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
    0.0017477208 = product of:
      0.005243162 = sum of:
        0.005243162 = weight(_text_:s in 7000) [ClassicSimilarity], result of:
          0.005243162 = score(doc=7000,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
      0.33333334 = coord(1/3)
    
    Pages
    S.373-389
  4. Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995) 0.00
    0.0017301554 = product of:
      0.005190466 = sum of:
        0.005190466 = weight(_text_:s in 6964) [ClassicSimilarity], result of:
          0.005190466 = score(doc=6964,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    Source
    Information processing and management. 31(1995) no.3, S.345-360
  5. Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992) 0.00
    0.0013981767 = product of:
      0.0041945297 = sum of:
        0.0041945297 = weight(_text_:s in 5689) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=5689,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    Source
    Journal of information science. 18(1992) no.2, S.139-147
  6. 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
    0.0010486324 = product of:
      0.003145897 = sum of:
        0.003145897 = weight(_text_:s in 5202) [ClassicSimilarity], result of:
          0.003145897 = score(doc=5202,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    Source
    Journal of the American Society for Information Science. 49(1998) no.3, S.206-216
  7. Buckley, C.; Allan, J.; Salton, G.: Automatic routing and retrieval using Smart : TREC-2 (1995) 0.00
    0.0010486324 = product of:
      0.003145897 = sum of:
        0.003145897 = weight(_text_:s in 5699) [ClassicSimilarity], result of:
          0.003145897 = score(doc=5699,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    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
    0.0010486324 = product of:
      0.003145897 = sum of:
        0.003145897 = weight(_text_:s in 2263) [ClassicSimilarity], result of:
          0.003145897 = score(doc=2263,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    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
    8.738604E-4 = product of:
      0.002621581 = sum of:
        0.002621581 = weight(_text_:s in 5159) [ClassicSimilarity], result of:
          0.002621581 = score(doc=5159,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = 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)
    
    Source
    Journal of library and information science. 24(1998) no.1, S.1-18