Search (47 results, page 1 of 3)

  • × theme_ss:"Retrievalalgorithmen"
  1. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.09
    0.08605452 = product of:
      0.17210904 = sum of:
        0.17210904 = sum of:
          0.121910766 = weight(_text_:2003 in 1422) [ClassicSimilarity], result of:
            0.121910766 = score(doc=1422,freq=5.0), product of:
              0.20099738 = queryWeight, product of:
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.04631309 = queryNorm
              0.6065291 = fieldWeight in 1422, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.0625 = fieldNorm(doc=1422)
          0.050198272 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
            0.050198272 = score(doc=1422,freq=2.0), product of:
              0.16218054 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04631309 = queryNorm
              0.30952093 = fieldWeight in 1422, 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=1422)
      0.5 = coord(1/2)
    
    Date
    22. 3.2003 19:27:23
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.285-301
    Year
    2003
  2. Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003) 0.06
    0.064540885 = product of:
      0.12908177 = sum of:
        0.12908177 = sum of:
          0.09143307 = weight(_text_:2003 in 1451) [ClassicSimilarity], result of:
            0.09143307 = score(doc=1451,freq=5.0), product of:
              0.20099738 = queryWeight, product of:
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.04631309 = queryNorm
              0.45489684 = fieldWeight in 1451, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.046875 = fieldNorm(doc=1451)
          0.037648704 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
            0.037648704 = score(doc=1451,freq=2.0), product of:
              0.16218054 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04631309 = queryNorm
              0.23214069 = fieldWeight in 1451, 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=1451)
      0.5 = coord(1/2)
    
    Date
    22. 3.2003 19:27:36
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.281-284
    Year
    2003
  3. Campos, L.M. de; Fernández-Luna, J.M.; Huete, J.F.: Implementing relevance feedback in the Bayesian network retrieval model (2003) 0.06
    0.064540885 = product of:
      0.12908177 = sum of:
        0.12908177 = sum of:
          0.09143307 = weight(_text_:2003 in 825) [ClassicSimilarity], result of:
            0.09143307 = score(doc=825,freq=5.0), product of:
              0.20099738 = queryWeight, product of:
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.04631309 = queryNorm
              0.45489684 = fieldWeight in 825, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.046875 = fieldNorm(doc=825)
          0.037648704 = weight(_text_:22 in 825) [ClassicSimilarity], result of:
            0.037648704 = score(doc=825,freq=2.0), product of:
              0.16218054 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04631309 = queryNorm
              0.23214069 = fieldWeight in 825, 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=825)
      0.5 = coord(1/2)
    
    Date
    22. 3.2003 19:30:19
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.302-313
    Year
    2003
  4. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.05
    0.054236226 = product of:
      0.10847245 = sum of:
        0.10847245 = sum of:
          0.07082375 = weight(_text_:2003 in 2717) [ClassicSimilarity], result of:
            0.07082375 = score(doc=2717,freq=3.0), product of:
              0.20099738 = queryWeight, product of:
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.04631309 = queryNorm
              0.35236156 = fieldWeight in 2717, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.046875 = fieldNorm(doc=2717)
          0.037648704 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
            0.037648704 = score(doc=2717,freq=2.0), product of:
              0.16218054 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04631309 = queryNorm
              0.23214069 = fieldWeight in 2717, 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=2717)
      0.5 = coord(1/2)
    
    Date
    11. 9.2004 17:32:22
    Year
    2003
  5. Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003) 0.05
    0.05378408 = product of:
      0.10756816 = sum of:
        0.10756816 = sum of:
          0.076194234 = weight(_text_:2003 in 1428) [ClassicSimilarity], result of:
            0.076194234 = score(doc=1428,freq=5.0), product of:
              0.20099738 = queryWeight, product of:
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.04631309 = queryNorm
              0.3790807 = fieldWeight in 1428, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.339969 = idf(docFreq=1566, maxDocs=44218)
                0.0390625 = fieldNorm(doc=1428)
          0.03137392 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
            0.03137392 = score(doc=1428,freq=2.0), product of:
              0.16218054 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04631309 = queryNorm
              0.19345059 = fieldWeight in 1428, 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=1428)
      0.5 = coord(1/2)
    
    Date
    22. 3.2003 19:35:46
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.321-334
    Year
    2003
  6. Crestani, F.: Combination of similarity measures for effective spoken document retrieval (2003) 0.05
    0.053335957 = product of:
      0.106671914 = sum of:
        0.106671914 = product of:
          0.21334383 = sum of:
            0.21334383 = weight(_text_:2003 in 4690) [ClassicSimilarity], result of:
              0.21334383 = score(doc=4690,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                1.0614259 = fieldWeight in 4690, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4690)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of information science. 29(2003) no.2, S.87-96
    Year
    2003
  7. Mandl, T.: Web- und Multimedia-Dokumente : Neuere Entwicklungen bei der Evaluierung von Information Retrieval Systemen (2003) 0.03
    0.030477691 = product of:
      0.060955383 = sum of:
        0.060955383 = product of:
          0.121910766 = sum of:
            0.121910766 = weight(_text_:2003 in 1734) [ClassicSimilarity], result of:
              0.121910766 = score(doc=1734,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.6065291 = fieldWeight in 1734, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1734)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information - Wissenschaft und Praxis. 54(2003) H.4, S.203-210
    Year
    2003
  8. Aizawa, A.: ¬An information-theoretic perspective of tf-idf measures (2003) 0.03
    0.030477691 = product of:
      0.060955383 = sum of:
        0.060955383 = product of:
          0.121910766 = sum of:
            0.121910766 = weight(_text_:2003 in 4155) [ClassicSimilarity], result of:
              0.121910766 = score(doc=4155,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.6065291 = fieldWeight in 4155, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4155)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 39(2003) no.1, S.45-65
    Year
    2003
  9. Heinz, S.; Zobel, J.: Efficient single-pass index construction for text databases (2003) 0.03
    0.026667979 = product of:
      0.053335957 = sum of:
        0.053335957 = product of:
          0.106671914 = sum of:
            0.106671914 = weight(_text_:2003 in 1678) [ClassicSimilarity], result of:
              0.106671914 = score(doc=1678,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.53071296 = fieldWeight in 1678, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1678)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.8, S.713-729
    Year
    2003
  10. Oberhauser, O.; Labner, J.: Relevance Ranking in Online-Katalogen : Informationsstand und Perspektiven (2003) 0.03
    0.026667979 = product of:
      0.053335957 = sum of:
        0.053335957 = product of:
          0.106671914 = sum of:
            0.106671914 = weight(_text_:2003 in 2188) [ClassicSimilarity], result of:
              0.106671914 = score(doc=2188,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.53071296 = fieldWeight in 2188, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2188)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Mitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare. 56(2003) H.3/4, S.49-63
    Year
    2003
  11. López-Pujalte, C.; Guerrero-Bote, V.P.; Moya-Anegón, F. de: Genetic algorithms in relevance feedback : a second test and new contributions (2003) 0.03
    0.026667979 = product of:
      0.053335957 = sum of:
        0.053335957 = product of:
          0.106671914 = sum of:
            0.106671914 = weight(_text_:2003 in 1076) [ClassicSimilarity], result of:
              0.106671914 = score(doc=1076,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.53071296 = fieldWeight in 1076, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1076)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 39(2003) no.5, S.669-687
    Year
    2003
  12. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.03
    0.025099136 = product of:
      0.050198272 = sum of:
        0.050198272 = product of:
          0.100396544 = sum of:
            0.100396544 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.100396544 = score(doc=402,freq=2.0), product of:
                0.16218054 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04631309 = 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)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  13. Nie, J.-Y.: Query expansion and query translation as logical inference (2003) 0.02
    0.022858268 = product of:
      0.045716535 = sum of:
        0.045716535 = product of:
          0.09143307 = sum of:
            0.09143307 = weight(_text_:2003 in 1425) [ClassicSimilarity], result of:
              0.09143307 = score(doc=1425,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.45489684 = fieldWeight in 1425, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1425)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.335-346
    Year
    2003
  14. Thelwall, M.: Can Google's PageRank be used to find the most important academic Web pages? (2003) 0.02
    0.022858268 = product of:
      0.045716535 = sum of:
        0.045716535 = product of:
          0.09143307 = sum of:
            0.09143307 = weight(_text_:2003 in 4457) [ClassicSimilarity], result of:
              0.09143307 = score(doc=4457,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.45489684 = fieldWeight in 4457, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4457)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of documentation. 59(2003) no.2, S.205-217
    Year
    2003
  15. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02
    0.021961743 = product of:
      0.043923486 = sum of:
        0.043923486 = product of:
          0.08784697 = sum of:
            0.08784697 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.08784697 = score(doc=2134,freq=2.0), product of:
                0.16218054 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04631309 = 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)
      0.5 = coord(1/2)
    
    Date
    30. 3.2001 13:32:22
  16. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02
    0.021961743 = product of:
      0.043923486 = sum of:
        0.043923486 = product of:
          0.08784697 = sum of:
            0.08784697 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
              0.08784697 = score(doc=3445,freq=2.0), product of:
                0.16218054 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04631309 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    25. 8.2005 17:42:22
  17. Picard, J.; Savoy, J.: Enhancing retrieval with hyperlinks : a general model based on propositional argumentation systems (2003) 0.02
    0.019048559 = product of:
      0.038097117 = sum of:
        0.038097117 = product of:
          0.076194234 = sum of:
            0.076194234 = weight(_text_:2003 in 1427) [ClassicSimilarity], result of:
              0.076194234 = score(doc=1427,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.3790807 = fieldWeight in 1427, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1427)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.347-355
    Year
    2003
  18. Chen, H.; Lally, A.M.; Zhu, B.; Chau, M.: HelpfulMed : Intelligent searching for medical information over the Internet (2003) 0.02
    0.019048559 = product of:
      0.038097117 = sum of:
        0.038097117 = product of:
          0.076194234 = sum of:
            0.076194234 = weight(_text_:2003 in 1615) [ClassicSimilarity], result of:
              0.076194234 = score(doc=1615,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.3790807 = fieldWeight in 1615, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1615)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.7, S.683-694
    Year
    2003
  19. Hoenkamp, E.: Unitary operators on the document space (2003) 0.02
    0.019048559 = product of:
      0.038097117 = sum of:
        0.038097117 = product of:
          0.076194234 = sum of:
            0.076194234 = weight(_text_:2003 in 3457) [ClassicSimilarity], result of:
              0.076194234 = score(doc=3457,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.3790807 = fieldWeight in 3457, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3457)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.4, S.314-320
    Year
    2003
  20. Watters, C.; Amoudi, A.: Geosearcher : location-based ranking of search engine results (2003) 0.02
    0.019048559 = product of:
      0.038097117 = sum of:
        0.038097117 = product of:
          0.076194234 = sum of:
            0.076194234 = weight(_text_:2003 in 5152) [ClassicSimilarity], result of:
              0.076194234 = score(doc=5152,freq=5.0), product of:
                0.20099738 = queryWeight, product of:
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.04631309 = queryNorm
                0.3790807 = fieldWeight in 5152, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.339969 = idf(docFreq=1566, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5152)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.2, S.140-151
    Year
    2003

Years

Languages

  • e 40
  • d 7

Types

  • a 44
  • m 2
  • r 1
  • More… Less…