Search (30 results, page 1 of 2)

  • × theme_ss:"Retrievalalgorithmen"
  1. Oberhauser, O.: Relevance Ranking in den Online-Katalogen der "nächsten Generation" (2010) 0.02 
    0.020914737 = product of:
  0.06274421 = sum of:
    0.06274421 = product of:
      0.12548842 = sum of:
        0.12548842 = weight(_text_:kritik in 4308) [ClassicSimilarity], result of:
          0.12548842 = score(doc=4308,freq=2.0), product of:
            0.29538116 = queryWeight, product of:
              6.4086204 = idf(docFreq=197, maxDocs=44218)
              0.046091225 = queryNorm
            0.42483553 = fieldWeight in 4308, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.4086204 = idf(docFreq=197, maxDocs=44218)
              0.046875 = fieldNorm(doc=4308)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Abstract
    Relevance Ranking in Online-Katalogen ist zwar kein neues Thema, doch liegt dazu nicht allzu viel Literatur vor, die das Prädikat "ernstzunehmen" verdient. Dies ist zum einen darin begründet, dass das Interesse an der Ausgabe ranggereihter Ergebnislisten auf Seiten aller Beteiligter (Bibliothekare, Softwarehersteller, Benutzer) traditionell gering war. Zum anderen ging die seit einigen Jahren populär gewordene Kritik an den bestehenden OPACs vielfach von einer unzureichenden Wissensbasis aus und produzierte oft nur polemische oder emotional gefärbte Beiträge, die zum Thema Ranking wenig beitrugen. ... Der hier beschriebene Test ist natürlich in keiner Weise erschöpfend oder repräsentativ. Dennoch gibt er, wie ich glaube, Anlass zu einiger Hoffnung. Er lässt vermuten, dass die "neuen" OPACs - zumindest was das Relevance Ranking betrifft - auf dem Weg in die richtige Richtung sind. Wie gut es wirklich gelingen wird, die Rankingleistung von Suchmaschinen wie Google, die unter völlig anderen Voraussetzungen arbeiten, einzuholen, wird aber erst die Zukunft zeigen.
  2. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.02 
    0.016652599 = product of:
  0.049957797 = sum of:
    0.049957797 = product of:
      0.099915594 = sum of:
        0.099915594 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
          0.099915594 = score(doc=402,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  3. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.01 
    0.014571024 = product of:
  0.04371307 = sum of:
    0.04371307 = product of:
      0.08742614 = sum of:
        0.08742614 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.08742614 = score(doc=2134,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    30. 3.2001 13:32:22
  4. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.01 
    0.014571024 = product of:
  0.04371307 = sum of:
    0.04371307 = product of:
      0.08742614 = sum of:
        0.08742614 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
          0.08742614 = score(doc=3445,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    25. 8.2005 17:42:22
  5. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.01 
    0.012489448 = product of:
  0.037468344 = sum of:
    0.037468344 = product of:
      0.07493669 = sum of:
        0.07493669 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
          0.07493669 = score(doc=58,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    14. 6.2015 22:12:44
  6. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.01 
    0.012489448 = product of:
  0.037468344 = sum of:
    0.037468344 = product of:
      0.07493669 = sum of:
        0.07493669 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
          0.07493669 = score(doc=2051,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    14. 6.2015 22:12:56
  7. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01 
    0.0083262995 = product of:
  0.024978898 = sum of:
    0.024978898 = product of:
      0.049957797 = sum of:
        0.049957797 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
          0.049957797 = score(doc=5108,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = queryNorm
            0.30952093 = fieldWeight in 5108, 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=5108)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    20. 1.2007 18:30:22
  8. Faloutsos, C.: Signature files (1992) 0.01 
    0.0083262995 = product of:
  0.024978898 = sum of:
    0.024978898 = product of:
      0.049957797 = sum of:
        0.049957797 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
          0.049957797 = score(doc=3499,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    7. 5.1999 15:22:48
  9. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01 
    0.0083262995 = product of:
  0.024978898 = sum of:
    0.024978898 = product of:
      0.049957797 = sum of:
        0.049957797 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
          0.049957797 = score(doc=1422,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    22. 3.2003 19:27:23
  10. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01 
    0.0083262995 = product of:
  0.024978898 = sum of:
    0.024978898 = product of:
      0.049957797 = sum of:
        0.049957797 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
          0.049957797 = score(doc=1431,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    22. 8.2014 17:05:18
  11. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.01 
    0.0083262995 = product of:
  0.024978898 = sum of:
    0.024978898 = product of:
      0.049957797 = sum of:
        0.049957797 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
          0.049957797 = score(doc=1484,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    13. 9.2014 14:45:22
  12. Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015) 0.01 
    0.007359478 = product of:
  0.022078434 = sum of:
    0.022078434 = product of:
      0.044156868 = sum of:
        0.044156868 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
          0.044156868 = score(doc=2591,freq=4.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = queryNorm
            0.27358043 = fieldWeight in 2591, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2591)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    20. 1.2015 18:30:22
    18. 9.2018 18:22:56
  13. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01 
    0.007285512 = product of:
  0.021856535 = sum of:
    0.021856535 = product of:
      0.04371307 = sum of:
        0.04371307 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
          0.04371307 = score(doc=1319,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    1. 8.1996 22:08:06
  14. Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01 
    0.007285512 = product of:
  0.021856535 = sum of:
    0.021856535 = product of:
      0.04371307 = sum of:
        0.04371307 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
          0.04371307 = score(doc=3276,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = queryNorm
            0.2708308 = fieldWeight in 3276, 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=3276)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    20. 3.2005 16:23:22
  15. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01 
    0.006244724 = product of:
  0.018734172 = sum of:
    0.018734172 = product of:
      0.037468344 = sum of:
        0.037468344 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
          0.037468344 = score(doc=5123,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    12. 9.1996 13:56:22
  16. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01 
    0.006244724 = product of:
  0.018734172 = sum of:
    0.018734172 = product of:
      0.037468344 = sum of:
        0.037468344 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
          0.037468344 = score(doc=6973,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    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
  17. 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) 0.01 
    0.006244724 = product of:
  0.018734172 = sum of:
    0.018734172 = product of:
      0.037468344 = sum of:
        0.037468344 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
          0.037468344 = score(doc=1451,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    22. 3.2003 19:27:36
  18. Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.01 
    0.006244724 = product of:
  0.018734172 = sum of:
    0.018734172 = product of:
      0.037468344 = sum of:
        0.037468344 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
          0.037468344 = score(doc=2239,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = queryNorm
            0.23214069 = fieldWeight in 2239, 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=2239)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    31. 5.2004 19:22:06
  19. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.01 
    0.006244724 = product of:
  0.018734172 = sum of:
    0.018734172 = product of:
      0.037468344 = sum of:
        0.037468344 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
          0.037468344 = score(doc=2717,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = 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)
  0.33333334 = coord(1/3)
    Date
    11. 9.2004 17:32:22
  20. Witschel, H.F.: Global term weights in distributed environments (2008) 0.01 
    0.006244724 = product of:
  0.018734172 = sum of:
    0.018734172 = product of:
      0.037468344 = sum of:
        0.037468344 = weight(_text_:22 in 2096) [ClassicSimilarity], result of:
          0.037468344 = score(doc=2096,freq=2.0), product of:
            0.16140361 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046091225 = queryNorm
            0.23214069 = fieldWeight in 2096, 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=2096)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    1. 8.2008 9:44:22

Authors

Years

Languages

  • e 25
  • d 5

Types

  • a 28
  • m 1
  • r 1
  • More… Less…

Themes

Subjects

Classifications