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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) 0.07 
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    Date
    9. 5.2002 21:21:22
    Source
    PC professionell. 2002, H.6, S.122-129
  3. Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents 0.06 
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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/.
    Pages
    S.527-535
  4. 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
  5. Williamson, N.J.: Knowledge structures and the Internet : progress and prospects (2006) 0.05 
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    Date
    27.12.2008 15:56:22
    Pages
    S.213-224
    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
  6. 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
    Source
    Computer networks and ISDN systems. 29(1997) no.8, S.1181-1191
  7. Höfer, W.: Detektive im Web (1999) 0.04 
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    Date
    22. 8.1999 20:22:06
    Source
    Internet Professionell. 1999, H.9, S.28-36
  8. Rensman, J.: Blick ins Getriebe (1999) 0.04 
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    Date
    22. 8.1999 21:22:59
    Source
    Internet Professionell. 1999, H.9, S.44-47
  9. Stock, M.; Stock, W.G.: Recherchieren im Internet (2004) 0.04 
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    Date
    27.11.2005 18:04:22
    Pages
    98 S
  10. Bharat, K.: SearchPad : explicit capture of search context to support Web search (2000) 0.03 
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    Source
    Computer networks. 33(2000) nos.1/6, S.493-501
  11. Patzwaldt, K.: Google Inside (2005) 0.03 
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    Date
    10. 6.2005 17:43:22
    Pages
    S.191-196
    Source
    ¬Die Google-Gesellschaft: Vom digitalen Wandel des Wissens. Hrsg.: K. Lehmann, M. Schetsche
  12. Vidmar, D.J.: Darwin on the Web : the evolution of search tools (1999) 0.03 
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    Source
    Computers in libraries. 19(1999) no.5, S.22-28
  13. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.03 
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  14. ap: Suchmaschinen in neuem Gewand : Metaspinner kennt 600 Millionen Seiten (1999) 0.03 
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    Bergische Landeszeitung. Nr.300 vom 23.12.1999, S
  15. MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000) 0.03 
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    Online information review. 24(2000) no.1, S.59-63
  16. Lob, S.: Per Mausklick auf die neusten Nachrichten : Internet-Suchmaschinen liefern Presse-Überblicke und stellen persönliche Zeitungen zusammen (1998) 0.03 
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    Frankfurter Rundschau. Nr.172 vom 28.7.1998, S.9
  17. Niedermair, K.: Gefährden Suchmaschinen und Discovery-Systeme die informationelle Autonomie? (2014) 0.03 
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    Mitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare. 67(2014) H.1, S.109-125
  18. Auf der Suche nach Suchmaschinen (1996) 0.03 
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    Cogito. 12(1996) H.5, S.19-22
  19. Bager, J.: Weniger ist mehr : Internet-Suchmaschinen richtig einsetzen (1998) 0.03 
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    29.12.1998 11:22:00
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    c't. 1998, H.15, S.110-112
  20. Hannemann, M.: Online ins Schlaraffenland der Wissenschaft : Literatur-Recherche im Internet ist ein teures Unterfangen ohne Erfolgsgarantie - Doch wer systematisch sucht, gelangt zügig ans Ziel (1999) 0.03 
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    Date
    3. 5.1997 8:44:22
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    Bergische Landeszeitung. Nr.42 vom 19.2.1999, S

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