Search (133 results, page 2 of 7)

  • × theme_ss:"Suchmaschinen"
  • × year_i:[2000 TO 2010}
  1. Haveliwala, T.; Kamvar, S.: ¬The second eigenvalue of the Google matrix (2003) 0.02 
    0.01796359 = product of:
  0.03592718 = sum of:
    0.03592718 = product of:
      0.07185436 = sum of:
        0.07185436 = weight(_text_:c in 2566) [ClassicSimilarity], result of:
          0.07185436 = score(doc=2566,freq=8.0), product of:
            0.15711682 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.045548957 = queryNorm
            0.45733082 = fieldWeight in 2566, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.046875 = fieldNorm(doc=2566)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    We determine analytically the modulus of the second eigenvalue for the web hyperlink matrix used by Google for computing PageRank. Specifically, we prove the following statement: "For any matrix A=(cP + (1-c)E)**T, where P is an nxn row-stochasticmatrix, E is a nonnegative nxn rank-one row-stochastic matrix, and 0<=c<=1, the second eigenvalue of A has modulus Betrag (Lambda_sub2)<=c. Furthermore, if P has at least two irreducible closed subsets, the second eigenvalue Lambda_sub2 = c." This statement has implications for the convergence rate of the standard PageRank algorithm as the web scales, for the stability of PageRank to perturbations to the link structure of the web, for the detection of Google spammers, and for the design of algorithms to speed up PageRank.
  2. Price, A.: Five new Danish subject gateways under development (2000) 0.02 
    0.015428137 = product of:
  0.030856274 = sum of:
    0.030856274 = product of:
      0.061712548 = sum of:
        0.061712548 = weight(_text_:22 in 4878) [ClassicSimilarity], result of:
          0.061712548 = score(doc=4878,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.38690117 = fieldWeight in 4878, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=4878)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 6.2002 19:41:31
  3. Eggeling, T.; Kroschel, A.: Alles finden im Web (2000) 0.02 
    0.015428137 = product of:
  0.030856274 = sum of:
    0.030856274 = product of:
      0.061712548 = sum of:
        0.061712548 = weight(_text_:22 in 4884) [ClassicSimilarity], result of:
          0.061712548 = score(doc=4884,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.38690117 = fieldWeight in 4884, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=4884)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    9. 7.2000 14:06:22
  4. Poulakos, I.: ¬"Die Leute suchen immer dasselbe" (2001) 0.02 
    0.015428137 = product of:
  0.030856274 = sum of:
    0.030856274 = product of:
      0.061712548 = sum of:
        0.061712548 = weight(_text_:22 in 5541) [ClassicSimilarity], result of:
          0.061712548 = score(doc=5541,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.38690117 = fieldWeight in 5541, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=5541)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    18. 1.1997 12:15:22
  5. Sauer, D.: Alles schneller finden (2001) 0.02 
    0.015428137 = product of:
  0.030856274 = sum of:
    0.030856274 = product of:
      0.061712548 = sum of:
        0.061712548 = weight(_text_:22 in 6835) [ClassicSimilarity], result of:
          0.061712548 = score(doc=6835,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.38690117 = fieldWeight in 6835, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=6835)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    11.11.2001 17:25:22
  6. Breyer, K.: Kommerz statt Information (2002) 0.02 
    0.015428137 = product of:
  0.030856274 = sum of:
    0.030856274 = product of:
      0.061712548 = sum of:
        0.061712548 = weight(_text_:22 in 568) [ClassicSimilarity], result of:
          0.061712548 = score(doc=568,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.38690117 = fieldWeight in 568, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=568)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    9. 5.2002 21:21:22
  7. Eggeling, T.; Kroschel, A.; Löbering, C.; Wolski, D.: Effektive Suche : Suchmaschinen und News-Archive (2001) 0.01 
    0.014969658 = product of:
  0.029939316 = sum of:
    0.029939316 = product of:
      0.059878632 = sum of:
        0.059878632 = weight(_text_:c in 979) [ClassicSimilarity], result of:
          0.059878632 = score(doc=979,freq=2.0), product of:
            0.15711682 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.045548957 = queryNorm
            0.381109 = fieldWeight in 979, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.078125 = fieldNorm(doc=979)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  8. Welp, C.: ¬Ein Code of Conduct für Suchmaschinen (2004) 0.01 
    0.012702176 = product of:
  0.025404353 = sum of:
    0.025404353 = product of:
      0.050808705 = sum of:
        0.050808705 = weight(_text_:c in 4033) [ClassicSimilarity], result of:
          0.050808705 = score(doc=4033,freq=4.0), product of:
            0.15711682 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.045548957 = queryNorm
            0.32338172 = fieldWeight in 4033, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.046875 = fieldNorm(doc=4033)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Wegweiser im Netz: Qualität und Nutzung von Suchmaschinen. 3. Aufl. Hrsg.: M. Machill u. C. Welp
  9. Oppenheim, C.; Morris, A.; McKnight, C.: ¬The evaluation of WWW search engines (2000) 0.01 
    0.012702176 = product of:
  0.025404353 = sum of:
    0.025404353 = product of:
      0.050808705 = sum of:
        0.050808705 = weight(_text_:c in 4546) [ClassicSimilarity], result of:
          0.050808705 = score(doc=4546,freq=4.0), product of:
            0.15711682 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.045548957 = queryNorm
            0.32338172 = fieldWeight in 4546, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.046875 = fieldNorm(doc=4546)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  10. Gardner, T.; Iannella, R.: Architecture and software solutions (2000) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 4867) [ClassicSimilarity], result of:
          0.04937004 = score(doc=4867,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 4867, 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=4867)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 6.2002 19:38:24
  11. Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 4869) [ClassicSimilarity], result of:
          0.04937004 = score(doc=4869,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 4869, 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=4869)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 6.2002 19:39:23
  12. Campbell, D.: Australian subject gateways : political and strategic issues (2000) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 4875) [ClassicSimilarity], result of:
          0.04937004 = score(doc=4875,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 4875, 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=4875)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 6.2002 19:41:16
  13. Hülsmann, M.: Profi-Suche : Suchdienste richtig nutzen (2001) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 6422) [ClassicSimilarity], result of:
          0.04937004 = score(doc=6422,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 6422, 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=6422)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    11. 8.2001 14:19:22
  14. Schüler, P.: Wertes Wissen : Knowledge Management vermeidet Datenfriedhöfe (2001) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 6815) [ClassicSimilarity], result of:
          0.04937004 = score(doc=6815,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 6815, 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=6815)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    8.11.2001 19:58:22
  15. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
          0.04937004 = score(doc=261,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 261, 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=261)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Die deutschen Suchmaschinen, Abacho, Acoon, Fireball und Lycos sowie die Web-Kataloge Web.de und Yahoo! werden einem Qualitätstest nach relativem Recall, Precision und Availability unterzogen. Die Methoden der Retrievaltests werden vorgestellt. Im Durchschnitt werden bei einem Cut-Off-Wert von 25 ein Recall von rund 22%, eine Precision von knapp 19% und eine Verfügbarkeit von 24% erreicht
  16. Dempsey, L.: ¬The subject gateway : experiences and issues based on the emergence of the Resource Discovery Network (2000) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 628) [ClassicSimilarity], result of:
          0.04937004 = score(doc=628,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 628, 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=628)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 6.2002 19:36:13
  17. Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 997) [ClassicSimilarity], result of:
          0.04937004 = score(doc=997,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 997, 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=997)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    29. 9.2002 18:49:22
  18. Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 2314) [ClassicSimilarity], result of:
          0.04937004 = score(doc=2314,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 2314, 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=2314)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    28.11.2004 13:11:22
  19. dpa: Froogle sucht nach Produkten (2004) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 2865) [ClassicSimilarity], result of:
          0.04937004 = score(doc=2865,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 2865, 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=2865)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    3. 5.1997 8:44:22
  20. Sandler, M.: Disruptive beneficence : the Google Print program and the future of libraries (2005) 0.01 
    0.01234251 = product of:
  0.02468502 = sum of:
    0.02468502 = product of:
      0.04937004 = sum of:
        0.04937004 = weight(_text_:22 in 208) [ClassicSimilarity], result of:
          0.04937004 = score(doc=208,freq=2.0), product of:
            0.15950468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045548957 = queryNorm
            0.30952093 = fieldWeight in 208, 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=208)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Pages
    S.5-22

Authors

Languages

  • d 76
  • e 57

Types

  • a 118
  • m 10
  • el 4
  • s 3
  • x 2
  • r 1
  • More… Less…

Themes

Subjects

Classifications