Search (92 results, page 2 of 5)

  • × theme_ss:"Retrievalalgorithmen"
  1. Daniowicz, C.; Baliski, J.: Document ranking based upon Markov chains (2001) 0.01
    0.011654554 = product of:
      0.023309108 = sum of:
        0.023309108 = product of:
          0.06992732 = sum of:
            0.06992732 = weight(_text_:j in 5388) [ClassicSimilarity], result of:
              0.06992732 = score(doc=5388,freq=2.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.4914939 = fieldWeight in 5388, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5388)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  2. Couvreur, T.R.; Benzel, R.N.; Miller, S.F.; Zeitler, D.N.; Lee, D.L.; Singhal, M.; Shivaratri, N.; Wong, W.Y.P.: ¬An analysis of performance and cost factors in searching large text databases using parallel search systems (1994) 0.01
    0.010729606 = product of:
      0.021459213 = sum of:
        0.021459213 = product of:
          0.064377636 = sum of:
            0.064377636 = weight(_text_:n in 7657) [ClassicSimilarity], result of:
              0.064377636 = score(doc=7657,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.33346266 = fieldWeight in 7657, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=7657)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  3. Losee, R.M.; Church Jr., L.: Are two document clusters better than one? : the cluster performance question for information retrieval (2005) 0.01
    0.010729606 = product of:
      0.021459213 = sum of:
        0.021459213 = product of:
          0.064377636 = sum of:
            0.064377636 = weight(_text_:n in 3270) [ClassicSimilarity], result of:
              0.064377636 = score(doc=3270,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.33346266 = fieldWeight in 3270, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3270)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    When do information retrieval systems using two document clusters provide better retrieval performance than systems using no clustering? We answer this question for one set of assumptions and suggest how this may be studied with other assumptions. The "Cluster Hypothesis" asks an empirical question about the relationships between documents and user-supplied relevance judgments, while the "Cluster Performance Question" proposed here focuses an the when and why of information retrieval or digital library performance for clustered and unclustered text databases. This may be generalized to study the relative performance of m versus n clusters.
  4. Bidoki, A.M.Z.; Yazdani, N.: an intelligent ranking algorithm for web pages : DistanceRank (2008) 0.01
    0.010729606 = product of:
      0.021459213 = sum of:
        0.021459213 = product of:
          0.064377636 = sum of:
            0.064377636 = weight(_text_:n in 2068) [ClassicSimilarity], result of:
              0.064377636 = score(doc=2068,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.33346266 = fieldWeight in 2068, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2068)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  5. Savoy, J.; Ndarugendamwo, M.; Vrajitoru, D.: Report on the TREC-4 experiment : combining probabilistic and vector-space schemes (1996) 0.01
    0.009989617 = product of:
      0.019979235 = sum of:
        0.019979235 = product of:
          0.059937704 = sum of:
            0.059937704 = weight(_text_:j in 7574) [ClassicSimilarity], result of:
              0.059937704 = score(doc=7574,freq=2.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.4212805 = fieldWeight in 7574, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.09375 = fieldNorm(doc=7574)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  6. Belkin, N.J.; Cool, C.; Koenemann, J.; Ng, K.B.; Park, S.: Using relevance feedback and ranking in interactive searching (1996) 0.01
    0.009989617 = product of:
      0.019979235 = sum of:
        0.019979235 = product of:
          0.059937704 = sum of:
            0.059937704 = weight(_text_:j in 7588) [ClassicSimilarity], result of:
              0.059937704 = score(doc=7588,freq=2.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.4212805 = fieldWeight in 7588, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.09375 = fieldNorm(doc=7588)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  7. 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) 0.01
    0.009196806 = product of:
      0.018393612 = sum of:
        0.018393612 = product of:
          0.055180833 = sum of:
            0.055180833 = weight(_text_:n in 2502) [ClassicSimilarity], result of:
              0.055180833 = score(doc=2502,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.28582513 = fieldWeight in 2502, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2502)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  8. Bar-Ilan, J.; Levene, M.: ¬The hw-rank : an h-index variant for ranking web pages (2015) 0.01
    0.008324681 = product of:
      0.016649362 = sum of:
        0.016649362 = product of:
          0.049948085 = sum of:
            0.049948085 = weight(_text_:j in 1694) [ClassicSimilarity], result of:
              0.049948085 = score(doc=1694,freq=2.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.35106707 = fieldWeight in 1694, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1694)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  9. Na, S.-H.; Kang, I.-S.; Roh, J.-E.; Lee, J.-H.: ¬An empirical study of query expansion and cluster-based retrieval in language modeling approach (2007) 0.01
    0.008241015 = product of:
      0.01648203 = sum of:
        0.01648203 = product of:
          0.049446084 = sum of:
            0.049446084 = weight(_text_:j in 906) [ClassicSimilarity], result of:
              0.049446084 = score(doc=906,freq=4.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.34753868 = fieldWeight in 906, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=906)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  10. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01
    0.008088676 = product of:
      0.016177353 = sum of:
        0.016177353 = product of:
          0.048532058 = sum of:
            0.048532058 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
              0.048532058 = score(doc=5108,freq=2.0), product of:
                0.15679733 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044775832 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    20. 1.2007 18:30:22
  11. Faloutsos, C.: Signature files (1992) 0.01
    0.008088676 = product of:
      0.016177353 = sum of:
        0.016177353 = product of:
          0.048532058 = sum of:
            0.048532058 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
              0.048532058 = score(doc=3499,freq=2.0), product of:
                0.15679733 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044775832 = 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
  12. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01
    0.008088676 = product of:
      0.016177353 = sum of:
        0.016177353 = product of:
          0.048532058 = sum of:
            0.048532058 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
              0.048532058 = score(doc=1422,freq=2.0), product of:
                0.15679733 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044775832 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 3.2003 19:27:23
  13. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01
    0.008088676 = product of:
      0.016177353 = sum of:
        0.016177353 = product of:
          0.048532058 = sum of:
            0.048532058 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.048532058 = score(doc=1431,freq=2.0), product of:
                0.15679733 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044775832 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 17:05:18
  14. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.01
    0.008088676 = product of:
      0.016177353 = sum of:
        0.016177353 = product of:
          0.048532058 = sum of:
            0.048532058 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
              0.048532058 = score(doc=1484,freq=2.0), product of:
                0.15679733 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044775832 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    13. 9.2014 14:45:22
  15. Fuhr, N.: Theorie des Information Retrieval I : Modelle (2004) 0.01
    0.0076640043 = product of:
      0.015328009 = sum of:
        0.015328009 = product of:
          0.045984026 = sum of:
            0.045984026 = weight(_text_:n in 2912) [ClassicSimilarity], result of:
              0.045984026 = score(doc=2912,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.23818761 = fieldWeight in 2912, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2912)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  16. Schaefer, A.; Jordan, M.; Klas, C.-P.; Fuhr, N.: Active support for query formulation in virtual digital libraries : a case study with DAFFODIL (2005) 0.01
    0.0076640043 = product of:
      0.015328009 = sum of:
        0.015328009 = product of:
          0.045984026 = sum of:
            0.045984026 = weight(_text_:n in 4296) [ClassicSimilarity], result of:
              0.045984026 = score(doc=4296,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.23818761 = fieldWeight in 4296, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4296)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  17. Fuhr, N.: Modelle im Information Retrieval (2023) 0.01
    0.0076640043 = product of:
      0.015328009 = sum of:
        0.015328009 = product of:
          0.045984026 = sum of:
            0.045984026 = weight(_text_:n in 800) [ClassicSimilarity], result of:
              0.045984026 = score(doc=800,freq=2.0), product of:
                0.19305801 = queryWeight, product of:
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.044775832 = queryNorm
                0.23818761 = fieldWeight in 800, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.3116565 = idf(docFreq=1611, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=800)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  18. Lee, J.-T.; Seo, J.; Jeon, J.; Rim, H.-C.: Sentence-based relevance flow analysis for high accuracy retrieval (2011) 0.01
    0.0072093857 = product of:
      0.0144187715 = sum of:
        0.0144187715 = product of:
          0.043256313 = sum of:
            0.043256313 = weight(_text_:j in 4746) [ClassicSimilarity], result of:
              0.043256313 = score(doc=4746,freq=6.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.304033 = fieldWeight in 4746, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4746)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  19. Jiang, J.-D.; Jiang, J.-Y.; Cheng, P.-J.: Cocluster hypothesis and ranking consistency for relevance ranking in web search (2019) 0.01
    0.0072093857 = product of:
      0.0144187715 = sum of:
        0.0144187715 = product of:
          0.043256313 = sum of:
            0.043256313 = weight(_text_:j in 5247) [ClassicSimilarity], result of:
              0.043256313 = score(doc=5247,freq=6.0), product of:
                0.14227505 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044775832 = queryNorm
                0.304033 = fieldWeight in 5247, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5247)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  20. Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015) 0.01
    0.0071494477 = product of:
      0.014298895 = sum of:
        0.014298895 = product of:
          0.042896684 = sum of:
            0.042896684 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
              0.042896684 = score(doc=2591,freq=4.0), product of:
                0.15679733 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044775832 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    18. 9.2018 18:22:56

Years

Languages

  • e 81
  • d 11

Types

  • a 88
  • x 2
  • el 1
  • m 1
  • r 1
  • More… Less…