Search (16 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1990 TO 2000}
  1. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.02
    0.021128725 = product of:
      0.04225745 = sum of:
        0.04225745 = product of:
          0.06338617 = sum of:
            0.024351375 = weight(_text_:12 in 5123) [ClassicSimilarity], result of:
              0.024351375 = score(doc=5123,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.1833526 = fieldWeight in 5123, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5123)
            0.039034795 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
              0.039034795 = score(doc=5123,freq=2.0), product of:
                0.16815145 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048018172 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    12. 9.1996 13:56:22
  2. Faloutsos, C.: Signature files (1992) 0.01
    0.0086744 = product of:
      0.0173488 = sum of:
        0.0173488 = product of:
          0.052046396 = sum of:
            0.052046396 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
              0.052046396 = score(doc=3499,freq=2.0), product of:
                0.16815145 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048018172 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    7. 5.1999 15:22:48
  3. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01
    0.0075900992 = product of:
      0.0151801985 = sum of:
        0.0151801985 = product of:
          0.045540594 = sum of:
            0.045540594 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
              0.045540594 = score(doc=1319,freq=2.0), product of:
                0.16815145 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048018172 = 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)
      0.5 = coord(1/2)
    
    Date
    1. 8.1996 22:08:06
  4. Hüther, H.: Selix im DFG-Projekt Kascade (1998) 0.01
    0.0067642713 = product of:
      0.013528543 = sum of:
        0.013528543 = product of:
          0.040585626 = sum of:
            0.040585626 = weight(_text_:12 in 5151) [ClassicSimilarity], result of:
              0.040585626 = score(doc=5151,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.30558768 = fieldWeight in 5151, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5151)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    18. 9.2018 18:25:12
  5. Ruthven, I.; Lalmas, M.: Selective relevance feedback using term characteristics (1999) 0.01
    0.0067642713 = product of:
      0.013528543 = sum of:
        0.013528543 = product of:
          0.040585626 = sum of:
            0.040585626 = weight(_text_:12 in 3824) [ClassicSimilarity], result of:
              0.040585626 = score(doc=3824,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.30558768 = fieldWeight in 3824, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3824)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    14. 8.2005 12:39:35
  6. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01
    0.0065057995 = product of:
      0.013011599 = sum of:
        0.013011599 = product of:
          0.039034795 = sum of:
            0.039034795 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
              0.039034795 = score(doc=6973,freq=2.0), product of:
                0.16815145 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048018172 = 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)
          0.33333334 = coord(1/3)
      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
  7. Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 0.01
    0.0054214997 = product of:
      0.010842999 = sum of:
        0.010842999 = product of:
          0.032528996 = sum of:
            0.032528996 = weight(_text_:22 in 3365) [ClassicSimilarity], result of:
              0.032528996 = score(doc=3365,freq=2.0), product of:
                0.16815145 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048018172 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 11:20:06
  8. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01
    0.0054214997 = product of:
      0.010842999 = sum of:
        0.010842999 = product of:
          0.032528996 = sum of:
            0.032528996 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.032528996 = score(doc=5697,freq=2.0), product of:
                0.16815145 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048018172 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 13:14:10
  9. Chang, R.: ¬The development of indexing technology (1993) 0.01
    0.005411417 = product of:
      0.010822834 = sum of:
        0.010822834 = product of:
          0.0324685 = sum of:
            0.0324685 = weight(_text_:12 in 7024) [ClassicSimilarity], result of:
              0.0324685 = score(doc=7024,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.24447013 = fieldWeight in 7024, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.0625 = fieldNorm(doc=7024)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Library software review. 12(1993) no.3, S.30-35
  10. Jones, G.; Robertson, A.M.; Willett, P.: ¬An introduction to genetic algorithms and to their use in information retrieval (1994) 0.01
    0.005411417 = product of:
      0.010822834 = sum of:
        0.010822834 = product of:
          0.0324685 = sum of:
            0.0324685 = weight(_text_:12 in 7415) [ClassicSimilarity], result of:
              0.0324685 = score(doc=7415,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.24447013 = fieldWeight in 7415, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.0625 = fieldNorm(doc=7415)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Online and CD-ROM review. 18(1994) no.1, S.3-12
  11. Srinivasan, P.: Query expansion and MEDLINE (1996) 0.01
    0.005411417 = product of:
      0.010822834 = sum of:
        0.010822834 = product of:
          0.0324685 = sum of:
            0.0324685 = weight(_text_:12 in 8453) [ClassicSimilarity], result of:
              0.0324685 = score(doc=8453,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.24447013 = fieldWeight in 8453, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.0625 = fieldNorm(doc=8453)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    14.11.1995 12:52:46
  12. Wong, S.K.M.; Yao, Y.Y.: Query formulation in linear retrieval models (1990) 0.01
    0.005411417 = product of:
      0.010822834 = sum of:
        0.010822834 = product of:
          0.0324685 = sum of:
            0.0324685 = weight(_text_:12 in 3571) [ClassicSimilarity], result of:
              0.0324685 = score(doc=3571,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.24447013 = fieldWeight in 3571, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3571)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    10. 1.1996 9:12:20
  13. Lee, D.L.; Ren, L.: Document ranking on weight-partitioned signature files (1996) 0.00
    0.0047349897 = product of:
      0.009469979 = sum of:
        0.009469979 = product of:
          0.028409937 = sum of:
            0.028409937 = weight(_text_:12 in 2417) [ClassicSimilarity], result of:
              0.028409937 = score(doc=2417,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.21391137 = fieldWeight in 2417, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2417)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    2.11.1996 12:34:48
  14. Paris, L.A.H.; Tibbo, H.R.: Freestyle vs. Boolean : a comparison of partial and exact match retrieval systems (1998) 0.00
    0.0047349897 = product of:
      0.009469979 = sum of:
        0.009469979 = product of:
          0.028409937 = sum of:
            0.028409937 = weight(_text_:12 in 3329) [ClassicSimilarity], result of:
              0.028409937 = score(doc=3329,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.21391137 = fieldWeight in 3329, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3329)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    12. 3.1999 10:29:27
  15. Evans, R.: Beyond Boolean : relevance ranking, natural language and the new search paradigm (1994) 0.00
    0.0040585627 = product of:
      0.008117125 = sum of:
        0.008117125 = product of:
          0.024351375 = sum of:
            0.024351375 = weight(_text_:12 in 8578) [ClassicSimilarity], result of:
              0.024351375 = score(doc=8578,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.1833526 = fieldWeight in 8578, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.046875 = fieldNorm(doc=8578)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Proceedings of the 15th National Online Meeting 1994, New York, 10-12 May 1994. Ed. by M.E. Williams
  16. Martin-Bautista, M.J.; Vila, M.-A.; Larsen, H.L.: ¬A fuzzy genetic algorithm approach to an adaptive information retrieval agent (1999) 0.00
    0.0040585627 = product of:
      0.008117125 = sum of:
        0.008117125 = product of:
          0.024351375 = sum of:
            0.024351375 = weight(_text_:12 in 3914) [ClassicSimilarity], result of:
              0.024351375 = score(doc=3914,freq=2.0), product of:
                0.13281173 = queryWeight, product of:
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.048018172 = queryNorm
                0.1833526 = fieldWeight in 3914, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.765864 = idf(docFreq=7562, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3914)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    21. 7.1999 12:46:38