Search (25 results, page 2 of 2)

  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Schaefer, A.; Jordan, M.; Klas, C.-P.; Fuhr, N.: Active support for query formulation in virtual digital libraries : a case study with DAFFODIL (2005) 0.00
    9.835954E-4 = product of:
      0.0029507861 = sum of:
        0.0029507861 = weight(_text_:s in 4296) [ClassicSimilarity], result of:
          0.0029507861 = score(doc=4296,freq=2.0), product of:
            0.049129035 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.045187026 = queryNorm
            0.060061958 = fieldWeight in 4296, 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=4296)
      0.33333334 = coord(1/3)
    
    Pages
    S.414-425
  2. Symonds, M.; Bruza, P.; Zuccon, G.; Koopman, B.; Sitbon, L.; Turner, I.: Automatic query expansion : a structural linguistic perspective (2014) 0.00
    9.835954E-4 = product of:
      0.0029507861 = sum of:
        0.0029507861 = weight(_text_:s in 1338) [ClassicSimilarity], result of:
          0.0029507861 = score(doc=1338,freq=2.0), product of:
            0.049129035 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.045187026 = queryNorm
            0.060061958 = fieldWeight in 1338, 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=1338)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.8, S.1577-1596
  3. Liu, X.; Zheng, W.; Fang, H.: ¬An exploration of ranking models and feedback method for related entity finding (2013) 0.00
    9.835954E-4 = product of:
      0.0029507861 = sum of:
        0.0029507861 = weight(_text_:s in 2714) [ClassicSimilarity], result of:
          0.0029507861 = score(doc=2714,freq=2.0), product of:
            0.049129035 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.045187026 = queryNorm
            0.060061958 = fieldWeight in 2714, 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=2714)
      0.33333334 = coord(1/3)
    
    Source
    Information processing and management. 49(2013) no.5, S.995-1007
  4. Xu, B.; Lin, H.; Lin, Y.: Assessment of learning to rank methods for query expansion (2016) 0.00
    9.835954E-4 = product of:
      0.0029507861 = sum of:
        0.0029507861 = weight(_text_:s in 2929) [ClassicSimilarity], result of:
          0.0029507861 = score(doc=2929,freq=2.0), product of:
            0.049129035 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.045187026 = queryNorm
            0.060061958 = fieldWeight in 2929, 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=2929)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.6, S.1345-1357
  5. Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.00
    7.8687625E-4 = product of:
      0.0023606287 = sum of:
        0.0023606287 = weight(_text_:s in 5701) [ClassicSimilarity], result of:
          0.0023606287 = score(doc=5701,freq=2.0), product of:
            0.049129035 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.045187026 = queryNorm
            0.048049565 = fieldWeight in 5701, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03125 = fieldNorm(doc=5701)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the American Society for Information Science. 51(2000) no.11, S.989-1003