Search (47 results, page 1 of 3)

  • × theme_ss:"Retrievalalgorithmen"
  1. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.09 
    0.09175811 = product of:
  0.18351622 = sum of:
    0.18351622 = sum of:
      0.1275789 = weight(_text_:2004 in 5108) [ClassicSimilarity], result of:
        0.1275789 = score(doc=5108,freq=5.0), product of:
          0.21705271 = queryWeight, product of:
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.051607955 = queryNorm
          0.5877784 = fieldWeight in 5108, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.0625 = fieldNorm(doc=5108)
      0.055937324 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
        0.055937324 = score(doc=5108,freq=2.0), product of:
          0.18072227 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051607955 = 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)
    Date
    20. 1.2007 18:30:22
    Source
    Aslib proceedings. 56(2004) no.4, S.201-211
    Year
    2004
  2. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.08 
    0.07758401 = product of:
  0.15516803 = sum of:
    0.15516803 = sum of:
      0.11321504 = weight(_text_:2004 in 2419) [ClassicSimilarity], result of:
        0.11321504 = score(doc=2419,freq=7.0), product of:
          0.21705271 = queryWeight, product of:
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.051607955 = queryNorm
          0.52160156 = fieldWeight in 2419, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.046875 = fieldNorm(doc=2419)
      0.04195299 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
        0.04195299 = score(doc=2419,freq=2.0), product of:
          0.18072227 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051607955 = 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)
  0.5 = 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
    Year
    2004
  3. Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.07 
    0.068818584 = product of:
  0.13763717 = sum of:
    0.13763717 = sum of:
      0.09568417 = weight(_text_:2004 in 2239) [ClassicSimilarity], result of:
        0.09568417 = score(doc=2239,freq=5.0), product of:
          0.21705271 = queryWeight, product of:
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.051607955 = queryNorm
          0.4408338 = fieldWeight in 2239, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.046875 = fieldNorm(doc=2239)
      0.04195299 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
        0.04195299 = score(doc=2239,freq=2.0), product of:
          0.18072227 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051607955 = 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)
    Date
    31. 5.2004 19:22:06
    Source
    Journal of the American Society for Information Science and technology. 55(2004) no.7, S.628-636
    Year
    2004
  4. Niemi, T.; Junkkari, M.; Järvelin, K.; Viita, S.: Advanced query language for manipulating complex entities (2004) 0.06 
    0.055815764 = product of:
  0.11163153 = sum of:
    0.11163153 = product of:
      0.22326306 = sum of:
        0.22326306 = weight(_text_:2004 in 4218) [ClassicSimilarity], result of:
          0.22326306 = score(doc=4218,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            1.0286121 = fieldWeight in 4218, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.109375 = fieldNorm(doc=4218)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 40(2004) no.6, S.869-
    Year
    2004
  5. Chung, Y.M.; Lee, J.Y.: Optimization of some factors affecting the performance of query expansion (2004) 0.06 
    0.055815764 = product of:
  0.11163153 = sum of:
    0.11163153 = product of:
      0.22326306 = sum of:
        0.22326306 = weight(_text_:2004 in 2537) [ClassicSimilarity], result of:
          0.22326306 = score(doc=2537,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            1.0286121 = fieldWeight in 2537, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.109375 = fieldNorm(doc=2537)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 40(2004) no.6, S.891-
    Year
    2004
  6. Silveira, M.; Ribeiro-Neto, B.: Concept-based ranking : a case study in the juridical domain (2004) 0.05 
    0.047842085 = product of:
  0.09568417 = sum of:
    0.09568417 = product of:
      0.19136834 = sum of:
        0.19136834 = weight(_text_:2004 in 2339) [ClassicSimilarity], result of:
          0.19136834 = score(doc=2339,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.8816676 = fieldWeight in 2339, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.09375 = fieldNorm(doc=2339)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 40(2004) no.5, S.791-806
    Year
    2004
  7. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.04 
    0.04014417 = product of:
  0.08028834 = sum of:
    0.08028834 = sum of:
      0.055815764 = weight(_text_:2004 in 2509) [ClassicSimilarity], result of:
        0.055815764 = score(doc=2509,freq=5.0), product of:
          0.21705271 = queryWeight, product of:
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.051607955 = queryNorm
          0.25715303 = fieldWeight in 2509, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            4.2057996 = idf(docFreq=1791, maxDocs=44218)
            0.02734375 = fieldNorm(doc=2509)
      0.02447258 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
        0.02447258 = score(doc=2509,freq=2.0), product of:
          0.18072227 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051607955 = 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)
  0.5 = coord(1/2)
    Source
    Electronic library. 22(2004) no.2, S.112-120
    Year
    2004
  8. Sparck Jones, K.: IDF term weighting and IR research lessons (2004) 0.04 
    0.039868403 = product of:
  0.07973681 = sum of:
    0.07973681 = product of:
      0.15947361 = sum of:
        0.15947361 = weight(_text_:2004 in 4422) [ClassicSimilarity], result of:
          0.15947361 = score(doc=4422,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.734723 = fieldWeight in 4422, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.078125 = fieldNorm(doc=4422)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of documentation. 60(2004) no.5, S.521-523
    Year
    2004
  9. Liu, A.; Zou, Q.; Chu, W.W.: Configurable indexing and ranking for XML information retrieval (2004) 0.03 
    0.030881932 = product of:
  0.061763864 = sum of:
    0.061763864 = product of:
      0.12352773 = sum of:
        0.12352773 = weight(_text_:2004 in 4114) [ClassicSimilarity], result of:
          0.12352773 = score(doc=4114,freq=3.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.56911397 = fieldWeight in 4114, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.078125 = fieldNorm(doc=4114)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Year
    2004
  10. Yu, K.; Tresp, V.; Yu, S.: ¬A nonparametric hierarchical Bayesian framework for information filtering (2004) 0.03 
    0.030881932 = product of:
  0.061763864 = sum of:
    0.061763864 = product of:
      0.12352773 = sum of:
        0.12352773 = weight(_text_:2004 in 4117) [ClassicSimilarity], result of:
          0.12352773 = score(doc=4117,freq=3.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.56911397 = fieldWeight in 4117, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.078125 = fieldNorm(doc=4117)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Year
    2004
  11. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.03 
    0.027968662 = product of:
  0.055937324 = sum of:
    0.055937324 = product of:
      0.11187465 = sum of:
        0.11187465 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
          0.11187465 = score(doc=402,freq=2.0), product of:
            0.18072227 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051607955 = 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
  12. Sparck Jones, K.: ¬A statistical interpretation of term specificity and its application in retrieval (2004) 0.03 
    0.027907882 = product of:
  0.055815764 = sum of:
    0.055815764 = product of:
      0.11163153 = sum of:
        0.11163153 = weight(_text_:2004 in 4420) [ClassicSimilarity], result of:
          0.11163153 = score(doc=4420,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.51430607 = fieldWeight in 4420, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4420)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of documentation. 60(2004) no.5, S.493-502
    Year
    2004
  13. Robertson, S.: Understanding inverse document frequency : on theoretical arguments for IDF (2004) 0.03 
    0.027907882 = product of:
  0.055815764 = sum of:
    0.055815764 = product of:
      0.11163153 = sum of:
        0.11163153 = weight(_text_:2004 in 4421) [ClassicSimilarity], result of:
          0.11163153 = score(doc=4421,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.51430607 = fieldWeight in 4421, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4421)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of documentation. 60(2004) no.5, S.503-520
    Year
    2004
  14. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
    0.02447258 = product of:
  0.04894516 = sum of:
    0.04894516 = product of:
      0.09789032 = sum of:
        0.09789032 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.09789032 = score(doc=2134,freq=2.0), product of:
            0.18072227 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051607955 = 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
  15. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02 
    0.02447258 = product of:
  0.04894516 = sum of:
    0.04894516 = product of:
      0.09789032 = sum of:
        0.09789032 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
          0.09789032 = score(doc=3445,freq=2.0), product of:
            0.18072227 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051607955 = 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
  16. Bodoff, D.; Robertson, S.: ¬A new unified probabilistic model (2004) 0.02 
    0.023921043 = product of:
  0.047842085 = sum of:
    0.047842085 = product of:
      0.09568417 = sum of:
        0.09568417 = weight(_text_:2004 in 2129) [ClassicSimilarity], result of:
          0.09568417 = score(doc=2129,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.4408338 = fieldWeight in 2129, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.046875 = fieldNorm(doc=2129)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 55(2004) no.6, S.471-487
    Year
    2004
  17. Beitzel, S.M.; Jensen, E.C.; Chowdhury, A.; Grossman, D.; Frieder, O; Goharian, N.: Fusion of effective retrieval strategies in the same information retrieval system (2004) 0.02 
    0.023921043 = product of:
  0.047842085 = sum of:
    0.047842085 = product of:
      0.09568417 = sum of:
        0.09568417 = weight(_text_:2004 in 2502) [ClassicSimilarity], result of:
          0.09568417 = score(doc=2502,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.4408338 = fieldWeight in 2502, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.046875 = fieldNorm(doc=2502)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 55(2004) no.10, S.859-868
    Year
    2004
  18. Thelwall, M.; Vaughan, L.: New versions of PageRank employing alternative Web document models (2004) 0.02 
    0.023921043 = product of:
  0.047842085 = sum of:
    0.047842085 = product of:
      0.09568417 = sum of:
        0.09568417 = weight(_text_:2004 in 674) [ClassicSimilarity], result of:
          0.09568417 = score(doc=674,freq=5.0), product of:
            0.21705271 = queryWeight, product of:
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.051607955 = queryNorm
            0.4408338 = fieldWeight in 674, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.2057996 = idf(docFreq=1791, maxDocs=44218)
              0.046875 = fieldNorm(doc=674)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Aslib proceedings. 56(2004) no.1, S.24-33
    Year
    2004
  19. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.02 
    0.020976495 = product of:
  0.04195299 = sum of:
    0.04195299 = product of:
      0.08390598 = sum of:
        0.08390598 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
          0.08390598 = score(doc=58,freq=2.0), product of:
            0.18072227 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051607955 = 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)
  0.5 = coord(1/2)
    Date
    14. 6.2015 22:12:44
  20. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.02 
    0.020976495 = product of:
  0.04195299 = sum of:
    0.04195299 = product of:
      0.08390598 = sum of:
        0.08390598 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
          0.08390598 = score(doc=2051,freq=2.0), product of:
            0.18072227 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051607955 = 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)
  0.5 = coord(1/2)
    Date
    14. 6.2015 22:12:56

Authors

Years

Languages

  • e 38
  • d 9

Types

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

Themes

Subjects

Classifications