Search (13 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × type_ss:"a"
  • × year_i:[1990 TO 2000}
  1. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.05
    0.047574557 = product of:
      0.095149115 = sum of:
        0.095149115 = sum of:
          0.05965339 = weight(_text_:c in 1319) [ClassicSimilarity], result of:
            0.05965339 = score(doc=1319,freq=6.0), product of:
              0.1291003 = queryWeight, product of:
                3.4494052 = idf(docFreq=3817, maxDocs=44218)
                0.037426826 = queryNorm
              0.46207014 = fieldWeight in 1319, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.4494052 = idf(docFreq=3817, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1319)
          0.03549573 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
            0.03549573 = score(doc=1319,freq=2.0), product of:
              0.13106237 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.037426826 = 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)
    
    Date
    1. 8.1996 22:08:06
  2. Faloutsos, C.: Signature files (1992) 0.04
    0.03996379 = product of:
      0.07992758 = sum of:
        0.07992758 = sum of:
          0.039361026 = weight(_text_:c in 3499) [ClassicSimilarity], result of:
            0.039361026 = score(doc=3499,freq=2.0), product of:
              0.1291003 = queryWeight, product of:
                3.4494052 = idf(docFreq=3817, maxDocs=44218)
                0.037426826 = queryNorm
              0.3048872 = fieldWeight in 3499, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4494052 = idf(docFreq=3817, maxDocs=44218)
                0.0625 = fieldNorm(doc=3499)
          0.04056655 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
            0.04056655 = score(doc=3499,freq=2.0), product of:
              0.13106237 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.037426826 = queryNorm
              0.30952093 = fieldWeight in 3499, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0625 = fieldNorm(doc=3499)
      0.5 = coord(1/2)
    
    Date
    7. 5.1999 15:22:48
  3. Belkin, N.J.; Cool, C.; Koenemann, J.; Ng, K.B.; Park, S.: Using relevance feedback and ranking in interactive searching (1996) 0.01
    0.014760386 = product of:
      0.029520772 = sum of:
        0.029520772 = product of:
          0.059041545 = sum of:
            0.059041545 = weight(_text_:c in 7588) [ClassicSimilarity], result of:
              0.059041545 = score(doc=7588,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.45733082 = fieldWeight in 7588, 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=7588)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  4. Cole, C.: Intelligent information retrieval: diagnosing information need : Part I: the theoretical framework for developing an intelligent IR tool (1998) 0.01
    0.014760386 = product of:
      0.029520772 = sum of:
        0.029520772 = product of:
          0.059041545 = sum of:
            0.059041545 = weight(_text_:c in 6431) [ClassicSimilarity], result of:
              0.059041545 = score(doc=6431,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.45733082 = fieldWeight in 6431, 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=6431)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  5. Cole, C.: Intelligent information retrieval: diagnosing information need : Part II: uncertainty expansion in a prototype of a diagnostic IR tool (1998) 0.01
    0.014760386 = product of:
      0.029520772 = sum of:
        0.029520772 = product of:
          0.059041545 = sum of:
            0.059041545 = weight(_text_:c in 6432) [ClassicSimilarity], result of:
              0.059041545 = score(doc=6432,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.45733082 = fieldWeight in 6432, 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=6432)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  6. Tenopir, C.: Online databases : natural language searching with WIN (1993) 0.01
    0.009840257 = product of:
      0.019680513 = sum of:
        0.019680513 = product of:
          0.039361026 = sum of:
            0.039361026 = weight(_text_:c in 7038) [ClassicSimilarity], result of:
              0.039361026 = score(doc=7038,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.3048872 = fieldWeight in 7038, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0625 = fieldNorm(doc=7038)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  7. Frakes, W.B.: Stemming algorithms (1992) 0.01
    0.009840257 = product of:
      0.019680513 = sum of:
        0.019680513 = product of:
          0.039361026 = sum of:
            0.039361026 = weight(_text_:c in 3503) [ClassicSimilarity], result of:
              0.039361026 = score(doc=3503,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.3048872 = fieldWeight in 3503, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3503)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Desribes stemming algorithms - programs that relate morphologically similar indexing and search terms. Stemming is used to improve retrieval effectiveness and to reduce the size of indexing files. Several approaches to stemming are describes - table lookup, affix removal, successor variety, and n-gram. empirical studies of stemming are summarized. The Porter stemmer is described in detail, and a full implementation in C is presented
  8. Stanfill, C.: Parallel information retrieval algorithms (1992) 0.01
    0.009840257 = product of:
      0.019680513 = sum of:
        0.019680513 = product of:
          0.039361026 = sum of:
            0.039361026 = weight(_text_:c in 3515) [ClassicSimilarity], result of:
              0.039361026 = score(doc=3515,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.3048872 = fieldWeight in 3515, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3515)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Carpineto, C.; Romano, G.: Information retrieval through hybrid navigation of lattice representations (1996) 0.01
    0.008610224 = product of:
      0.017220449 = sum of:
        0.017220449 = product of:
          0.034440897 = sum of:
            0.034440897 = weight(_text_:c in 7434) [ClassicSimilarity], result of:
              0.034440897 = score(doc=7434,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.2667763 = fieldWeight in 7434, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=7434)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  10. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01
    0.0076062274 = product of:
      0.015212455 = sum of:
        0.015212455 = product of:
          0.03042491 = sum of:
            0.03042491 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
              0.03042491 = score(doc=5123,freq=2.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = queryNorm
                0.23214069 = fieldWeight in 5123, 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=5123)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    12. 9.1996 13:56:22
  11. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01
    0.0076062274 = product of:
      0.015212455 = sum of:
        0.015212455 = product of:
          0.03042491 = sum of:
            0.03042491 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
              0.03042491 = score(doc=6973,freq=2.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = queryNorm
                0.23214069 = fieldWeight in 6973, 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=6973)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  12. Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 0.01
    0.0063385232 = product of:
      0.0126770465 = sum of:
        0.0126770465 = product of:
          0.025354093 = sum of:
            0.025354093 = weight(_text_:22 in 3365) [ClassicSimilarity], result of:
              0.025354093 = score(doc=3365,freq=2.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = queryNorm
                0.19345059 = fieldWeight in 3365, 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=3365)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 11:20:06
  13. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01
    0.0063385232 = product of:
      0.0126770465 = sum of:
        0.0126770465 = product of:
          0.025354093 = sum of:
            0.025354093 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.025354093 = score(doc=5697,freq=2.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 13:14:10