Search (84 results, page 2 of 5)

  • × theme_ss:"Suchmaschinen"
  • × type_ss:"a"
  • × year_i:[2000 TO 2010}
  1. Campbell, D.: Australian subject gateways : political and strategic issues (2000) 0.01 
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    Date
    22. 6.2002 19:41:16
  2. Hülsmann, M.: Profi-Suche : Suchdienste richtig nutzen (2001) 0.01 
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    Date
    11. 8.2001 14:19:22
  3. Schüler, P.: Wertes Wissen : Knowledge Management vermeidet Datenfriedhöfe (2001) 0.01 
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    Date
    8.11.2001 19:58:22
  4. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01 
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    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
  5. Dempsey, L.: ¬The subject gateway : experiences and issues based on the emergence of the Resource Discovery Network (2000) 0.01 
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    Date
    22. 6.2002 19:36:13
  6. Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002) 0.01 
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    Date
    29. 9.2002 18:49:22
  7. Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004) 0.01 
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    Date
    28.11.2004 13:11:22
  8. dpa: Froogle sucht nach Produkten (2004) 0.01 
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    Date
    3. 5.1997 8:44:22
  9. Sandler, M.: Disruptive beneficence : the Google Print program and the future of libraries (2005) 0.01 
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    Pages
    S.5-22
  10. Fordahl, M.: Mit Google den PC durchforsten : Kleines Programm erstellt in rechenfreien Zeiten einen Index (2004) 0.01 
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    Date
    3. 5.1997 8:44:22
    Source
    Bergische Landeszeitung. Nr.247 vom 21.10.2004, S.22
  11. dpa/fr: Google scannt nun Zeitungen : Schon Millionen Artikel im "Online-Archiv" (2008) 0.01 
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    Date
    17. 7.1996 9:33:22
    14. 9.2008 17:11:22
  12. Heery, R.: Information gateways : collaboration and content (2000) 0.01 
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    Date
    22. 6.2002 19:38:54
  13. Price, A.: NOVAGate : a Nordic gateway to electronic resources in the forestry, veterinary and agricultural sciences (2000) 0.01 
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    Date
    22. 6.2002 19:41:00
  14. Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000) 0.01 
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    Date
    22. 6.2002 19:37:55
  15. Internet: The editor's choice (2004) 0.01 
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    Date
    3. 1.2005 12:03:22
  16. Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01 
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    Date
    20. 3.2005 16:23:22
  17. Rose, D.E.: Reconciling information-seeking behavior with search user interfaces for the Web (2006) 0.01 
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    Date
    22. 7.2006 17:58:06
  18. Williamson, N.J.: Knowledge structures and the Internet : progress and prospects (2006) 0.01 
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    Date
    27.12.2008 15:56:22
  19. Hastik, C.; Schuster, A.; Knauerhase, A.: Wissenschaftliche Suchmaschinen : Usability Evaluation und Betrachtung des Suchverhaltens potentieller Nutzer (2009) 0.01 
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    Date
    23. 3.2009 14:49:22
  20. Lischka, K.: Falsche Fährten (2002) 0.01 
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    Content
    "Algorithmen wie bei der Suchmaschine und redaktionell ausgewählte Kataloge wie Yahoo vermitteln den Eindruck von Allwissenheit und Neutralität. Doch der täuscht. Manche Anbieter lassen sich für attraktive Platzierungen in den Ergebnislisten bezahlen. Beispielsweise die deutschsprachige Suchmaschine Acoon. Ganz gleich, ob Surfer eine "Marion Müller" oder einen "Karl' Kaninchen" finden wollen: Als viertes Ergebnis taucht immer ein Internet-Reiseservice sui; mit einer angeblichen Relevanz von 87 Prozent. So krass werden Nutzer nur selten getäuscht. Doch auch die Resultate einer Recherche beim deutschsprachigen Angebot des Microsoft Network (MSN) machen stutzig: Wer "Buch" oder "Auto" eintippt, wird als Erstes auf so genannte ausgewählte Websites verwiesen. Und das sind gewiss nicht die wichtigsten. Denn die Ergebnisse ähneln sich erstaunlich: "Bücher bei MSN Shopping" oder "MSN-Carview". Das verdeutlicht: Abgesehen davon, dass Suchmaschinen höchstens ein Viertel der Webdokumente kennen, muss die Auswahl der Algorithmen oder Redakteure keineswegs objektiv oder den Nutzerfinteressen angepasst sein. Der Inhalt hängt vielmehr von einem komplexen Interessengetlecht ab. Beteiligt dabei: die Verantwortlichen für Internetangebote, die Betreiber der Suchmaschinen, der regulierende Staat und die Surfer. Manche Formen ihres Zusammenwirkens sind heikel. Zunächst kann das Gewinnstreben der Suchmaschinenbetreiber und das Interesse der Inhaltsanbieter an Seitenaufrufen die Suchresultate verzerren. Den schmalen Grat beschrieb Ganon Giguiere, Marketingchef bei Altavista, einmal so: "Man muss die feine Balance zwischen einem optimalen Produkt und einem Produkt, das Umsätze bringt, finden." Dass die Suchmaschfinenanbfieter die Herkunft gekaufter Ergebnisse nicht immer ttansparent machen, zeigt ein Brief der, US-amerikanischen Federal Trade Commission an einige Betreiber. Die Behörde mahnt, bezahlte Ergebnisse deutlicher zu kennzeichnen und den Nutzern das Zustandekommen zu erklären. In Deutschland kündigte die Wettbewerbszentrale an" gegen unzureichend kennzeichnende Suchmaschinenbetreiber wegen sittenwidrigen Verhaltens im Wettbewerb vorzugehen. Verwirrende Begriffe verwenden gar seriöse Anbieter Unter "Empfohlene Links" und "Weitere Listings zeigt Altavista Wer-, bung, Web.de nutzt den Begriff "Partnerlinks". Pikant: Einträge in das redaktionelle Verzeichnis von Web.de sind nur ,noch gegen Geld möglich. Wenigstens 27,84 Euro verlangen die Karlsruher jährlich. Ob langfristig die Chancengleichheit etwa zwischen finanzstarken Unternehmen und eher minderbemittelten Nicht-Regierungs-Organisationen gewahrt bleibt? Web.de-Sprecherin Eva Vennemann sieht kein Problem: "Wir konnten seit der Umstellung keine Unterschiede bezüglich der Struktur und Themenvielfalt feststellen. Auch Institutionen und Privatpersonen melden weiter ihre Seiten bei uns an." Bisher verlangen nur wenige Kataloge zwingend Anmeldegebühren. Meist werden gegen Bezahlung die Seiten schneller aufgenommen, sonst kann es schon einmal sechs Monate dauern. Die Zwei-Klas-sen-Aufmerksamkeitsgesellschaft erklärt den Erfolg von Projekten wie dem Open Directory Dmoz.org: Dort begutachten Freiwillige Seiten für einen redaktionellen Katalog, den andere Anbieter in Teilen oder komplett übernehmen - so such das Google-Verzeichnis. Alleine der deutschsprachige Teil zählt etwa 200 000 Einträge.

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  • d 54
  • e 30

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