Search (2 results, page 1 of 1)

  • × theme_ss:"Internet"
  • × theme_ss:"Retrievalalgorithmen"
  1. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.05
    0.05015035 = product of:
      0.14042097 = sum of:
        0.044992477 = weight(_text_:wide in 1319) [ClassicSimilarity], result of:
          0.044992477 = score(doc=1319,freq=2.0), product of:
            0.1312982 = queryWeight, product of:
              4.4307585 = idf(docFreq=1430, maxDocs=44218)
              0.029633347 = queryNorm
            0.342674 = fieldWeight in 1319, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.4307585 = idf(docFreq=1430, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1319)
        0.042278 = weight(_text_:web in 1319) [ClassicSimilarity], result of:
          0.042278 = score(doc=1319,freq=6.0), product of:
            0.09670874 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.029633347 = queryNorm
            0.43716836 = fieldWeight in 1319, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1319)
        0.014125523 = weight(_text_:information in 1319) [ClassicSimilarity], result of:
          0.014125523 = score(doc=1319,freq=8.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.27153665 = fieldWeight in 1319, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1319)
        0.029656855 = weight(_text_:retrieval in 1319) [ClassicSimilarity], result of:
          0.029656855 = score(doc=1319,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.33085006 = fieldWeight in 1319, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1319)
        0.009368123 = product of:
          0.028104367 = sum of:
            0.028104367 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
              0.028104367 = score(doc=1319,freq=2.0), product of:
                0.103770934 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.029633347 = 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)
          0.33333334 = coord(1/3)
      0.35714287 = coord(5/14)
    
    Abstract
    Keyword based querying has been an immediate and efficient way to specify and retrieve related information that the user inquired. However, conventional document ranking based on an automatic assessment of document relevance to the query may not be the best approach when little information is given. Proposes an idea to integrate 2 existing techniques, query expansion and relevance feedback to achieve a concept-based information search for the Web
    Date
    1. 8.1996 22:08:06
    Footnote
    Contribution to a special issue devoted to the Proceedings of the 7th International World Wide Web Conference, held 14-18 April 1998, Brisbane, Australia
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  2. Zhang, D.; Dong, Y.: ¬An effective algorithm to rank Web resources (2000) 0.00
    0.0034870307 = product of:
      0.048818428 = sum of:
        0.048818428 = weight(_text_:web in 3662) [ClassicSimilarity], result of:
          0.048818428 = score(doc=3662,freq=2.0), product of:
            0.09670874 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.029633347 = queryNorm
            0.50479853 = fieldWeight in 3662, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.109375 = fieldNorm(doc=3662)
      0.071428575 = coord(1/14)