Search (95 results, page 1 of 5)

  • × theme_ss:"Retrievalalgorithmen"
  1. Koopman, R.: ¬Ein OPAC mit Gewichtungsalgorithmen : Der PICA Micro OPC (1996) 0.04
    0.03928058 = product of:
      0.07856116 = sum of:
        0.07856116 = product of:
          0.11784173 = sum of:
            0.06335962 = weight(_text_:k in 4114) [ClassicSimilarity], result of:
              0.06335962 = score(doc=4114,freq=2.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.39440846 = fieldWeight in 4114, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4114)
            0.05448211 = weight(_text_:r in 4114) [ClassicSimilarity], result of:
              0.05448211 = score(doc=4114,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.36573532 = fieldWeight in 4114, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4114)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Zukunft der Sacherschließung im OPAC: Vorträge des 2. Düsseldorfer OPAC-Kolloquiums am 21. Juni 1995. Hrsg.: E. Niggemann u. K. Lepsky
  2. Faloutsos, C.: Signature files (1992) 0.03
    0.030787379 = product of:
      0.061574757 = sum of:
        0.061574757 = product of:
          0.092362136 = sum of:
            0.04358569 = weight(_text_:r in 3499) [ClassicSimilarity], result of:
              0.04358569 = score(doc=3499,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.29258826 = fieldWeight in 3499, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3499)
            0.048776448 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
              0.048776448 = score(doc=3499,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    7. 5.1999 15:22:48
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  3. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.03
    0.030787379 = product of:
      0.061574757 = sum of:
        0.061574757 = product of:
          0.092362136 = sum of:
            0.04358569 = weight(_text_:r in 1431) [ClassicSimilarity], result of:
              0.04358569 = score(doc=1431,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.29258826 = fieldWeight in 1431, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1431)
            0.048776448 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.048776448 = score(doc=1431,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = queryNorm
                0.30952093 = fieldWeight in 1431, 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=1431)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 17:05:18
  4. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.03
    0.030787379 = product of:
      0.061574757 = sum of:
        0.061574757 = product of:
          0.092362136 = sum of:
            0.04358569 = weight(_text_:r in 1484) [ClassicSimilarity], result of:
              0.04358569 = score(doc=1484,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.29258826 = fieldWeight in 1484, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1484)
            0.048776448 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
              0.048776448 = score(doc=1484,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = queryNorm
                0.30952093 = fieldWeight in 1484, 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=1484)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    13. 9.2014 14:45:22
    Type
    r
  5. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.02
    0.023090538 = product of:
      0.046181075 = sum of:
        0.046181075 = product of:
          0.06927161 = sum of:
            0.03268927 = weight(_text_:r in 6973) [ClassicSimilarity], result of:
              0.03268927 = score(doc=6973,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.2194412 = fieldWeight in 6973, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.046875 = fieldNorm(doc=6973)
            0.036582336 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
              0.036582336 = score(doc=6973,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.6666667 = coord(2/3)
      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
  6. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.02
    0.023090538 = product of:
      0.046181075 = sum of:
        0.046181075 = product of:
          0.06927161 = sum of:
            0.03268927 = weight(_text_:r in 2419) [ClassicSimilarity], result of:
              0.03268927 = score(doc=2419,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.2194412 = fieldWeight in 2419, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2419)
            0.036582336 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
              0.036582336 = score(doc=2419,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    16.11.2008 16:22:48
    Source
    Research and advanced technology for digital libraries : 8th European conference, ECDL 2004, Bath, UK, September 12-17, 2004 : proceedings. Eds.: Heery, R. u. E. Lyon
  7. Hubert, G.; Pitarch, Y.; Pinel-Sauvagnat, K.; Tournier, R.; Laporte, L.: TournaRank : when retrieval becomes document competition (2018) 0.02
    0.01964029 = product of:
      0.03928058 = sum of:
        0.03928058 = product of:
          0.058920864 = sum of:
            0.03167981 = weight(_text_:k in 5087) [ClassicSimilarity], result of:
              0.03167981 = score(doc=5087,freq=2.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.19720423 = fieldWeight in 5087, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5087)
            0.027241055 = weight(_text_:r in 5087) [ClassicSimilarity], result of:
              0.027241055 = score(doc=5087,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.18286766 = fieldWeight in 5087, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5087)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  8. Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 0.02
    0.019242113 = product of:
      0.038484227 = sum of:
        0.038484227 = product of:
          0.05772634 = sum of:
            0.027241055 = weight(_text_:r in 3365) [ClassicSimilarity], result of:
              0.027241055 = score(doc=3365,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.18286766 = fieldWeight in 3365, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3365)
            0.030485282 = weight(_text_:22 in 3365) [ClassicSimilarity], result of:
              0.030485282 = score(doc=3365,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 11:20:06
  9. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.02
    0.019242113 = product of:
      0.038484227 = sum of:
        0.038484227 = product of:
          0.05772634 = sum of:
            0.027241055 = weight(_text_:r in 5697) [ClassicSimilarity], result of:
              0.027241055 = score(doc=5697,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.18286766 = fieldWeight in 5697, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5697)
            0.030485282 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.030485282 = score(doc=5697,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Abstract
    The performance of 8 ranking algorithms was evaluated with respect to their effectiveness in ranking terms for query expansion. The evaluation was conducted within an investigation of interactive query expansion and relevance feedback in a real operational environment. Focuses on the identification of algorithms that most effectively take cognizance of user preferences. user choices (i.e. the terms selected by the searchers for the query expansion search) provided the yardstick for the evaluation of the 8 ranking algorithms. This methodology introduces a user oriented approach in evaluating ranking algorithms for query expansion in contrast to the standard, system oriented approaches. Similarities in the performance of the 8 algorithms and the ways these algorithms rank terms were the main focus of this evaluation. The findings demonstrate that the r-lohi, wpq, enim, and porter algorithms have similar performance in bringing good terms to the top of a ranked list of terms for query expansion. However, further evaluation of the algorithms in different (e.g. full text) environments is needed before these results can be generalized beyond the context of the present study
    Date
    22. 2.1996 13:14:10
  10. Baloh, P.; Desouza, K.C.; Hackney, R.: Contextualizing organizational interventions of knowledge management systems : a design science perspectiveA domain analysis (2012) 0.02
    0.019242113 = product of:
      0.038484227 = sum of:
        0.038484227 = product of:
          0.05772634 = sum of:
            0.027241055 = weight(_text_:r in 241) [ClassicSimilarity], result of:
              0.027241055 = score(doc=241,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.18286766 = fieldWeight in 241, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=241)
            0.030485282 = weight(_text_:22 in 241) [ClassicSimilarity], result of:
              0.030485282 = score(doc=241,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = queryNorm
                0.19345059 = fieldWeight in 241, 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=241)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    11. 6.2012 14:22:34
  11. Sparck Jones, K.: Search term relevance weighting given little relevance information (1979) 0.02
    0.017920807 = product of:
      0.035841614 = sum of:
        0.035841614 = product of:
          0.10752484 = sum of:
            0.10752484 = weight(_text_:k in 1939) [ClassicSimilarity], result of:
              0.10752484 = score(doc=1939,freq=4.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.66933334 = fieldWeight in 1939, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1939)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.329-338.
  12. Sparck Jones, K.: ¬A statistical interpretation of term specifity and its application in retrieval (1972) 0.02
    0.016895901 = product of:
      0.033791803 = sum of:
        0.033791803 = product of:
          0.1013754 = sum of:
            0.1013754 = weight(_text_:k in 5187) [ClassicSimilarity], result of:
              0.1013754 = score(doc=5187,freq=2.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.63105357 = fieldWeight in 5187, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.125 = fieldNorm(doc=5187)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  13. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.02
    0.016258817 = product of:
      0.032517634 = sum of:
        0.032517634 = product of:
          0.097552896 = sum of:
            0.097552896 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.097552896 = score(doc=402,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  14. Yu, K.; Tresp, V.; Yu, S.: ¬A nonparametric hierarchical Bayesian framework for information filtering (2004) 0.01
    0.014934007 = product of:
      0.029868014 = sum of:
        0.029868014 = product of:
          0.08960404 = sum of:
            0.08960404 = weight(_text_:k in 4117) [ClassicSimilarity], result of:
              0.08960404 = score(doc=4117,freq=4.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.5577778 = fieldWeight in 4117, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4117)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    SIGIR'04: Proceedings of the 27th Annual International ACM-SIGIR Conference an Research and Development in Information Retrieval. Ed.: K. Järvelin, u.a
  15. Niemi, T.; Junkkari, M.; Järvelin, K.; Viita, S.: Advanced query language for manipulating complex entities (2004) 0.01
    0.014783913 = product of:
      0.029567827 = sum of:
        0.029567827 = product of:
          0.088703476 = sum of:
            0.088703476 = weight(_text_:k in 4218) [ClassicSimilarity], result of:
              0.088703476 = score(doc=4218,freq=2.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.5521719 = fieldWeight in 4218, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4218)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  16. Jones, K.: Linguistic searching versus relevance ranking : DR-LINK and TARGET (1999) 0.01
    0.014783913 = product of:
      0.029567827 = sum of:
        0.029567827 = product of:
          0.088703476 = sum of:
            0.088703476 = weight(_text_:k in 6423) [ClassicSimilarity], result of:
              0.088703476 = score(doc=6423,freq=2.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.5521719 = fieldWeight in 6423, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6423)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  17. Rada, R.; Bicknell, E.: Ranking documents with a thesaurus (1989) 0.01
    0.014528564 = product of:
      0.029057128 = sum of:
        0.029057128 = product of:
          0.08717138 = sum of:
            0.08717138 = weight(_text_:r in 6908) [ClassicSimilarity], result of:
              0.08717138 = score(doc=6908,freq=2.0), product of:
                0.14896595 = queryWeight, product of:
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.04500131 = queryNorm
                0.5851765 = fieldWeight in 6908, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3102584 = idf(docFreq=4387, maxDocs=44218)
                  0.125 = fieldNorm(doc=6908)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  18. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.01
    0.014505188 = product of:
      0.029010376 = sum of:
        0.029010376 = product of:
          0.043515563 = sum of:
            0.022175869 = weight(_text_:k in 2509) [ClassicSimilarity], result of:
              0.022175869 = score(doc=2509,freq=2.0), product of:
                0.16064468 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.04500131 = queryNorm
                0.13804297 = fieldWeight in 2509, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=2509)
            0.021339696 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
              0.021339696 = score(doc=2509,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = queryNorm
                0.1354154 = fieldWeight in 2509, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=2509)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Electronic library. 22(2004) no.2, S.112-120
  19. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.01
    0.014226465 = product of:
      0.02845293 = sum of:
        0.02845293 = product of:
          0.08535878 = sum of:
            0.08535878 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.08535878 = score(doc=2134,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    30. 3.2001 13:32:22
  20. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.01
    0.014226465 = product of:
      0.02845293 = sum of:
        0.02845293 = product of:
          0.08535878 = sum of:
            0.08535878 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
              0.08535878 = score(doc=3445,freq=2.0), product of:
                0.15758692 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04500131 = queryNorm
                0.5416616 = fieldWeight in 3445, 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=3445)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    25. 8.2005 17:42:22

Years

Languages

  • e 83
  • d 11
  • m 1
  • More… Less…

Types

  • a 82
  • m 5
  • r 4
  • s 3
  • x 2
  • el 1
  • More… Less…