Search (9 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1980 TO 1990}
  1. Salton, G.; Buckley, C.: Term-weighting approaches in automatic text retrieval (1988) 0.06
    0.064299196 = product of:
      0.15003146 = sum of:
        0.028999854 = product of:
          0.057999708 = sum of:
            0.057999708 = weight(_text_:c in 1938) [ClassicSimilarity], result of:
              0.057999708 = score(doc=1938,freq=2.0), product of:
                0.12682222 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.036766402 = queryNorm
                0.45733082 = fieldWeight in 1938, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1938)
          0.5 = coord(1/2)
        0.052265197 = weight(_text_:u in 1938) [ClassicSimilarity], result of:
          0.052265197 = score(doc=1938,freq=2.0), product of:
            0.120389536 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.036766402 = queryNorm
            0.43413407 = fieldWeight in 1938, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.09375 = fieldNorm(doc=1938)
        0.068766415 = weight(_text_:g in 1938) [ClassicSimilarity], result of:
          0.068766415 = score(doc=1938,freq=2.0), product of:
            0.13809267 = queryWeight, product of:
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.036766402 = queryNorm
            0.49797297 = fieldWeight in 1938, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.09375 = fieldNorm(doc=1938)
      0.42857143 = coord(3/7)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.323-328.
  2. Salton, G.; Buckley, C.: Parallel text search methods (1988) 0.04
    0.037244298 = product of:
      0.13035503 = sum of:
        0.03866647 = product of:
          0.07733294 = sum of:
            0.07733294 = weight(_text_:c in 404) [ClassicSimilarity], result of:
              0.07733294 = score(doc=404,freq=2.0), product of:
                0.12682222 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.036766402 = queryNorm
                0.6097744 = fieldWeight in 404, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.125 = fieldNorm(doc=404)
          0.5 = coord(1/2)
        0.09168856 = weight(_text_:g in 404) [ClassicSimilarity], result of:
          0.09168856 = score(doc=404,freq=2.0), product of:
            0.13809267 = queryWeight, product of:
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.036766402 = queryNorm
            0.663964 = fieldWeight in 404, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.125 = fieldNorm(doc=404)
      0.2857143 = coord(2/7)
    
  3. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.03
    0.028186988 = product of:
      0.09865446 = sum of:
        0.068766415 = weight(_text_:g in 2051) [ClassicSimilarity], result of:
          0.068766415 = score(doc=2051,freq=2.0), product of:
            0.13809267 = queryWeight, product of:
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.036766402 = queryNorm
            0.49797297 = fieldWeight in 2051, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.09375 = fieldNorm(doc=2051)
        0.02988804 = product of:
          0.05977608 = sum of:
            0.05977608 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
              0.05977608 = score(doc=2051,freq=2.0), product of:
                0.12874968 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036766402 = queryNorm
                0.46428138 = fieldWeight in 2051, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2051)
          0.5 = coord(1/2)
      0.2857143 = coord(2/7)
    
    Date
    14. 6.2015 22:12:56
    Source
    Automatische Indexierung zwischen Forschung und Anwendung, Hrsg.: G. Lustig
  4. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.03
    0.027384415 = product of:
      0.095845446 = sum of:
        0.060976066 = weight(_text_:u in 2134) [ClassicSimilarity], result of:
          0.060976066 = score(doc=2134,freq=2.0), product of:
            0.120389536 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.036766402 = queryNorm
            0.50648975 = fieldWeight in 2134, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.109375 = fieldNorm(doc=2134)
        0.03486938 = product of:
          0.06973876 = sum of:
            0.06973876 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.06973876 = score(doc=2134,freq=2.0), product of:
                0.12874968 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036766402 = 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)
      0.2857143 = coord(2/7)
    
    Date
    30. 3.2001 13:32:22
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  5. Wu, H.; Salton, G.: ¬The estimation of term relevance weights using relevance feedback (1981) 0.01
    0.013098366 = product of:
      0.09168856 = sum of:
        0.09168856 = weight(_text_:g in 4728) [ClassicSimilarity], result of:
          0.09168856 = score(doc=4728,freq=2.0), product of:
            0.13809267 = queryWeight, product of:
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.036766402 = queryNorm
            0.663964 = fieldWeight in 4728, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.125 = fieldNorm(doc=4728)
      0.14285715 = coord(1/7)
    
  6. Salton, G.: ¬A simple blueprint for automatic Boolean query processing (1988) 0.01
    0.013098366 = product of:
      0.09168856 = sum of:
        0.09168856 = weight(_text_:g in 6774) [ClassicSimilarity], result of:
          0.09168856 = score(doc=6774,freq=2.0), product of:
            0.13809267 = queryWeight, product of:
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.036766402 = queryNorm
            0.663964 = fieldWeight in 6774, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.125 = fieldNorm(doc=6774)
      0.14285715 = coord(1/7)
    
  7. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.01
    0.0056929607 = product of:
      0.039850723 = sum of:
        0.039850723 = product of:
          0.079701446 = sum of:
            0.079701446 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.079701446 = score(doc=402,freq=2.0), product of:
                0.12874968 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036766402 = queryNorm
                0.61904186 = fieldWeight in 402, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=402)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  8. Deerwester, S.; Dumais, S.; Landauer, T.; Furnass, G.; Beck, L.: Improving information retrieval with latent semantic indexing (1988) 0.00
    0.004911887 = product of:
      0.034383208 = sum of:
        0.034383208 = weight(_text_:g in 2396) [ClassicSimilarity], result of:
          0.034383208 = score(doc=2396,freq=2.0), product of:
            0.13809267 = queryWeight, product of:
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.036766402 = queryNorm
            0.24898648 = fieldWeight in 2396, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7559474 = idf(docFreq=2809, maxDocs=44218)
              0.046875 = fieldNorm(doc=2396)
      0.14285715 = coord(1/7)
    
  9. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.00
    0.00426972 = product of:
      0.02988804 = sum of:
        0.02988804 = product of:
          0.05977608 = sum of:
            0.05977608 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
              0.05977608 = score(doc=58,freq=2.0), product of:
                0.12874968 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036766402 = queryNorm
                0.46428138 = fieldWeight in 58, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=58)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    14. 6.2015 22:12:44