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  • × theme_ss:"Suchmaschinen"
  1. Großjohann, K.: Gathering-, Harvesting-, Suchmaschinen (1996) 0.09 
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    Date
    7. 2.1996 22:38:41
    Pages
    22 S
  2. Breyer, K.: Kommerz statt Information (2002) 0.06 
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    Date
    9. 5.2002 21:21:22
  3. Boldi, P.; Santini, M.; Vigna, S.: PageRank as a function of the damping factor (2005) 0.05 
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    Abstract
    PageRank is defined as the stationary state of a Markov chain. The chain is obtained by perturbing the transition matrix induced by a web graph with a damping factor alpha that spreads uniformly part of the rank. The choice of alpha is eminently empirical, and in most cases the original suggestion alpha=0.85 by Brin and Page is still used. Recently, however, the behaviour of PageRank with respect to changes in alpha was discovered to be useful in link-spam detection. Moreover, an analytical justification of the value chosen for alpha is still missing. In this paper, we give the first mathematical analysis of PageRank when alpha changes. In particular, we show that, contrarily to popular belief, for real-world graphs values of alpha close to 1 do not give a more meaningful ranking. Then, we give closed-form formulae for PageRank derivatives of any order, and an extension of the Power Method that approximates them with convergence O(t**k*alpha**t) for the k-th derivative. Finally, we show a tight connection between iterated computation and analytical behaviour by proving that the k-th iteration of the Power Method gives exactly the PageRank value obtained using a Maclaurin polynomial of degree k. The latter result paves the way towards the application of analytical methods to the study of PageRank.
    Date
    16. 1.2016 10:22:28
  4. Williamson, N.J.: Knowledge structures and the Internet : progress and prospects (2006) 0.04 
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    Date
    27.12.2008 15:56:22
    Source
    Knowledge organization for a global learning society: Proceedings of the 9th International ISKO Conference, 4-7 July 2006, Vienna, Austria. Hrsg.: G. Budin, C. Swertz u. K. Mitgutsch
  5. Mukherjea, S.; Hirata, K.; Hara, Y.: Towards a multimedia World-Wide Web information retrieval engine (1997) 0.04 
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    Date
    1. 8.1996 22:08:06
  6. Patzwaldt, K.: Google Inside (2005) 0.03 
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    Date
    10. 6.2005 17:43:22
    Source
    ¬Die Google-Gesellschaft: Vom digitalen Wandel des Wissens. Hrsg.: K. Lehmann, M. Schetsche
  7. Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents 0.03 
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    Content
    Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
  8. Höfer, W.: Detektive im Web (1999) 0.03 
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    Date
    22. 8.1999 20:22:06
  9. Rensman, J.: Blick ins Getriebe (1999) 0.03 
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    Date
    22. 8.1999 21:22:59
  10. Stock, M.; Stock, W.G.: Recherchieren im Internet (2004) 0.02 
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    Date
    27.11.2005 18:04:22
  11. Bharat, K.: SearchPad : explicit capture of search context to support Web search (2000) 0.02 
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  12. MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000) 0.02 
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    Date
    22. 6.2002 19:40:22
  13. Vidmar, D.J.: Darwin on the Web : the evolution of search tools (1999) 0.02 
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    Source
    Computers in libraries. 19(1999) no.5, S.22-28
  14. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02 
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    Date
    25. 8.2005 17:42:22
  15. ap: Suchmaschinen in neuem Gewand : Metaspinner kennt 600 Millionen Seiten (1999) 0.02 
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    Date
    3. 5.1997 8:44:22
  16. Dunning, A.: Do we still need search engines? (1999) 0.02 
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    Source
    Ariadne. 1999, no.22
  17. Bawden, D.: Google and the universe of knowledge (2008) 0.02 
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    Date
    7. 6.2008 16:22:20
  18. Campbell, K.: Understanding and comparing search engines (1996) 0.02 
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  19. Niedermair, K.: Gefährden Suchmaschinen und Discovery-Systeme die informationelle Autonomie? (2014) 0.02 
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  20. Müller-Wolf, K.: (Alb-)Traum der virtuellen Bücherwelt : Internet-Unternehmen Google möchte weltumspannende digitale Bibliothek schaffen (2005) 0.02 
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    Date
    3. 5.1997 8:44:22

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Languages

  • d 125
  • e 85
  • f 1
  • nl 1
  • More… Less…

Types

  • a 179
  • m 18
  • el 16
  • s 5
  • x 4
  • p 2
  • r 1
  • More… Less…

Themes

Subjects

Classifications