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Lewandowski, D.; Spree, U.: ¬Die Forschungsgruppe Search Studies an der HAW Hamburg (2019)
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- Information - Wissenschaft und Praxis. 70(2019) H.1, S.1-2
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Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002)
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- Date
- 29. 9.2002 18:49:22
- Source
- BuB. 54(2002) H.9, S.558-561
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Lewandowski, D.: Mit welchen Kennzahlen lässt sich die Qualität von Suchmaschinen messen? (2007)
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- Date
- 13. 5.2007 10:29:29
- Source
- Macht der Suchmaschinen: The Power of Search Engines. Hrsg.: Machill, M. u. M. Beiler
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- a
-
Lewandowski, D.: Informationsarmut : sowohl ein quantitatives als auch ein qualitatives Problem (1999)
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- Date
- 23.10.1996 17:26:29
- Source
- Bibliothek: Forschung und Praxis. 23(1999) H.1, S.5-13
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- a
-
Lewandowski, D.: Wie können sich Bibliotheken gegenüber Wissenschaftssuchmaschinen positionieren? (2007)
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- Wa(h)re Information: 29. Österreichischer Bibliothekartag Bregenz, 19.-23.9.2006. Hrsg.: Harald Weigel
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- a
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Lewandowski, D.; Spree, U.: Ranking of Wikipedia articles in search engines revisited : fair ranking for reasonable quality? (2011)
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- Abstract
- This paper aims to review the fiercely discussed question of whether the ranking of Wikipedia articles in search engines is justified by the quality of the articles. After an overview of current research on information quality in Wikipedia, a summary of the extended discussion on the quality of encyclopedic entries in general is given. On this basis, a heuristic method for evaluating Wikipedia entries is developed and applied to Wikipedia articles that scored highly in a search engine retrieval effectiveness test and compared with the relevance judgment of jurors. In all search engines tested, Wikipedia results are unanimously judged better by the jurors than other results on the corresponding results position. Relevance judgments often roughly correspond with the results from the heuristic evaluation. Cases in which high relevance judgments are not in accordance with the comparatively low score from the heuristic evaluation are interpreted as an indicator of a high degree of trust in Wikipedia. One of the systemic shortcomings of Wikipedia lies in its necessarily incoherent user model. A further tuning of the suggested criteria catalog, for instance, the different weighing of the supplied criteria, could serve as a starting point for a user model differentiated evaluation of Wikipedia articles. Approved methods of quality evaluation of reference works are applied to Wikipedia articles and integrated with the question of search engine evaluation.
- Date
- 30. 9.2012 19:27:22
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Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004)
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- Date
- 28.11.2004 13:11:22
- Source
- Information - Wissenschaft und Praxis. 55(2004) H.2, S.97-102
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- a
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Lewandowski, D.: Perspektiven eines Open Web Index (2016)
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- Date
- 16. 5.2016 21:53:29
- Source
- Information - Wissenschaft und Praxis. 67(2016) H.1, S.15-21
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Lewandowski, D.: Suchmaschinen (2013)
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- Source
- Grundlagen der praktischen Information und Dokumentation. Handbuch zur Einführung in die Informationswissenschaft und -praxis. 6., völlig neu gefaßte Ausgabe. Hrsg. von R. Kuhlen, W. Semar u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried
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Lewandowski, D.; Haustein, S.: What does the German-language information science community cite? (2015)
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- Source
- Re:inventing information science in the networked society: Proceedings of the 14th International Symposium on Information Science, Zadar/Croatia, 19th-21st May 2015. Eds.: F. Pehar, C. Schloegl u. C. Wolff
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- a
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Lewandowski, D.: ¬Die Macht der Suchmaschinen und ihr Einfluss auf unsere Entscheidungen (2014)
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- Date
- 22. 9.2014 18:54:11
- Source
- Information - Wissenschaft und Praxis. 65(2014) H.4/5, S.231-238
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- a
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Lewandowski, D.: Desktop-Suche, Shortcuts, SMS (2004)
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- Source
- Password. 2004, H.11, S.40-41
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Lewandowski, D.: Neue Themen der Informationswissenschaft sind nicht zu erkennen (2004)
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- Password. 2004, H.12, S.8-10
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Lewandowski, D.: Spezialsuche für wissenschaftliche Informationen (2004)
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Lewandowski, D.: Start der eigenen Suchmaschine als Beta-Version (2004)
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Lewandowski, D.: Freiwillige Selbstkontrolle, Stärkung "alternativer Suchmaschinen" : Suchmaschinen und Politik (2005)
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Lewandowski, D.: Neue Suchmaschinen, neue Datenbestände, Desktop-Suche, Shortcuts (2005)
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Lewandowski, D.; Sünkler, S.; Kerkmann, F.: Are ads on Google search engine results pages labeled clearly enough? : the influence of knowledge on search ads on users' selection behaviour (2017)
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- Abstract
- In an online experiment using a representative sample of the German online population (n = 1.000), we compare users' selection behaviour on two versions of the same Google search engine results page (SERP), one showing advertisements and organic results, the other showing organic results only. Selection behaviour is analyzed in relation to users' knowledge on Google's business model, on SERP design, and on these users' actual performance in marking advertisements on SERPs correctly. We find that users who were not able to mark ads correctly selected ads significantly more often. This leads to the conclusion that ads need to be labeled more clearly, and that there is a need for more information literacy in search engine users.
- Source
- Everything changes, everything stays the same? - Understanding information spaces : Proceedings of the 15th International Symposium of Information Science (ISI 2017), Berlin/Germany, 13th - 15th March 2017. Eds.: M. Gäde, V. Trkulja u. V. Petras
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Lewandowski, D.: Suchmaschine im Betriebssystem (2005)
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- Source
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Lewandowski, D.: "Find what I mean not what I say" : Neuere Ansätze zur Qualifizierung von Suchmaschinen-Ergebnissen (2001)
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- Source
- BuB. 53(2001) H.6/7, S.381-386
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