Search (11 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × type_ss:"a"
  1. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.01
    0.0071775266 = product of:
      0.050242685 = sum of:
        0.050242685 = sum of:
          0.02856017 = weight(_text_:berlin in 2419) [ClassicSimilarity], result of:
            0.02856017 = score(doc=2419,freq=2.0), product of:
              0.10719733 = queryWeight, product of:
                4.019024 = idf(docFreq=2159, maxDocs=44218)
                0.026672479 = queryNorm
              0.26642615 = fieldWeight in 2419, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.019024 = idf(docFreq=2159, maxDocs=44218)
                0.046875 = fieldNorm(doc=2419)
          0.021682516 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
            0.021682516 = score(doc=2419,freq=2.0), product of:
              0.093402475 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.026672479 = queryNorm
              0.23214069 = fieldWeight in 2419, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=2419)
      0.14285715 = coord(1/7)
    
    Date
    16.11.2008 16:22:48
    Imprint
    Berlin : Springer
  2. 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
    0.0040517505 = product of:
      0.014181126 = sum of:
        0.002281055 = product of:
          0.00912422 = sum of:
            0.00912422 = weight(_text_:m in 4296) [ClassicSimilarity], result of:
              0.00912422 = score(doc=4296,freq=2.0), product of:
                0.066373095 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.026672479 = queryNorm
                0.13746867 = fieldWeight in 4296, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4296)
          0.25 = coord(1/4)
        0.011900071 = product of:
          0.023800142 = sum of:
            0.023800142 = weight(_text_:berlin in 4296) [ClassicSimilarity], result of:
              0.023800142 = score(doc=4296,freq=2.0), product of:
                0.10719733 = queryWeight, product of:
                  4.019024 = idf(docFreq=2159, maxDocs=44218)
                  0.026672479 = queryNorm
                0.22202179 = fieldWeight in 4296, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.019024 = idf(docFreq=2159, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4296)
          0.5 = coord(1/2)
      0.2857143 = coord(2/7)
    
    Imprint
    Berlin : Springer
  3. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.00
    0.0036137525 = product of:
      0.025296267 = sum of:
        0.025296267 = product of:
          0.050592534 = sum of:
            0.050592534 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.050592534 = score(doc=2134,freq=2.0), product of:
                0.093402475 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.026672479 = queryNorm
                0.5416616 = fieldWeight in 2134, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2134)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    30. 3.2001 13:32:22
  4. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.00
    0.0018068763 = product of:
      0.012648134 = sum of:
        0.012648134 = product of:
          0.025296267 = sum of:
            0.025296267 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
              0.025296267 = score(doc=1319,freq=2.0), product of:
                0.093402475 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.026672479 = queryNorm
                0.2708308 = fieldWeight in 1319, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1319)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    1. 8.1996 22:08:06
  5. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.00
    0.0012906261 = product of:
      0.009034382 = sum of:
        0.009034382 = product of:
          0.018068764 = sum of:
            0.018068764 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.018068764 = score(doc=5697,freq=2.0), product of:
                0.093402475 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.026672479 = queryNorm
                0.19345059 = fieldWeight in 5697, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5697)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    22. 2.1996 13:14:10
  6. Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003) 0.00
    0.0012906261 = product of:
      0.009034382 = sum of:
        0.009034382 = product of:
          0.018068764 = sum of:
            0.018068764 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
              0.018068764 = score(doc=1428,freq=2.0), product of:
                0.093402475 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.026672479 = queryNorm
                0.19345059 = fieldWeight in 1428, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1428)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    22. 3.2003 19:35:46
  7. Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006) 0.00
    0.0012906261 = product of:
      0.009034382 = sum of:
        0.009034382 = product of:
          0.018068764 = sum of:
            0.018068764 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
              0.018068764 = score(doc=56,freq=2.0), product of:
                0.093402475 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.026672479 = queryNorm
                0.19345059 = fieldWeight in 56, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=56)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    22. 7.2006 16:32:43
  8. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.00
    4.5621104E-4 = product of:
      0.0031934772 = sum of:
        0.0031934772 = product of:
          0.012773909 = sum of:
            0.012773909 = weight(_text_:m in 2731) [ClassicSimilarity], result of:
              0.012773909 = score(doc=2731,freq=2.0), product of:
                0.066373095 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.026672479 = 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)
          0.25 = coord(1/4)
      0.14285715 = coord(1/7)
    
  9. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.00
    4.5621104E-4 = product of:
      0.0031934772 = sum of:
        0.0031934772 = product of:
          0.012773909 = sum of:
            0.012773909 = weight(_text_:m in 430) [ClassicSimilarity], result of:
              0.012773909 = score(doc=430,freq=2.0), product of:
                0.066373095 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.026672479 = 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)
          0.25 = coord(1/4)
      0.14285715 = coord(1/7)
    
  10. Chen, H.; Lally, A.M.; Zhu, B.; Chau, M.: HelpfulMed : Intelligent searching for medical information over the Internet (2003) 0.00
    3.2586502E-4 = product of:
      0.002281055 = sum of:
        0.002281055 = product of:
          0.00912422 = sum of:
            0.00912422 = weight(_text_:m in 1615) [ClassicSimilarity], result of:
              0.00912422 = score(doc=1615,freq=2.0), product of:
                0.066373095 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.026672479 = queryNorm
                0.13746867 = fieldWeight in 1615, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1615)
          0.25 = coord(1/4)
      0.14285715 = coord(1/7)
    
  11. Symonds, M.; Bruza, P.; Zuccon, G.; Koopman, B.; Sitbon, L.; Turner, I.: Automatic query expansion : a structural linguistic perspective (2014) 0.00
    3.2586502E-4 = product of:
      0.002281055 = sum of:
        0.002281055 = product of:
          0.00912422 = sum of:
            0.00912422 = weight(_text_:m in 1338) [ClassicSimilarity], result of:
              0.00912422 = score(doc=1338,freq=2.0), product of:
                0.066373095 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.026672479 = queryNorm
                0.13746867 = fieldWeight in 1338, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1338)
          0.25 = coord(1/4)
      0.14285715 = coord(1/7)