Category : Publikationen

Written on Oct, 24, 2017 by in , | Leave a comment

An Empirical Investigation on Search Engine Ad Disclosure Lewandiwski, D., Kerkmann, F., Rümmele, S., Sünkler, S. (2017) An Empirical Investigation on Search Engine Ad Disclosure. Journal of the American Society for Information Science and Technology doi.org/10.1002/asi.23963 Download: Preprint Abstract This representative study of German search engine users (N=1,000) focuses on the ability of users to distinguish between organic results and …

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Written on Jul, 26, 2017 by in , | Leave a comment

Does it matter which search engine is used? A user study using post-task relevance judgments Sünkler, S.; Lewandowski, D.: Does it matter which search engine is used? A user study using post-task relevance judgments. In: Proceedings of the 80th Annual Meeting of the Association of Information Science and Technology, Crystal City, VA, USA. Download: Preprint Abstract The objective of this …

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Written on Jun, 23, 2017 by in , | Leave a comment

Status Quo und Entwicklungsperspektiven des Suchmaschinenmarkts Lewandowski, D.: Status Quo und Entwicklungsperspektiven des Suchmaschinenmarkts. In: Krone, J.; Pellegrini, T.: Handbuch Medienökonomie. Heidelberg: Springer, 2016. DOI 10.1007/978-3-658-09632-8_38-1 Download: Preprint Abstract Suchmaschinen spielen eine zentrale Rolle für die Auffindbarkeit von Inhalten im Web; andere Zugänge haben hinsichtlich des vermittelten Traffics nur eine untergeordnete Rolle. In diesem Kapitel wird die Bedeutung der Suchmaschinen …

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Written on Jun, 23, 2017 by in , | Leave a comment

Umgang mit Information Overload Lewandowski, D.: Umgang mit Information Overload. In: Back, A.; Gronau, N.; Tochtermann, K. (Hrsg.): Web 2.0 in der Unternehmenspraxis. 3. Auflage. München: Oldenbourg, 2012, S. 202-207. Download: Preprint Abstract Unter Information Overload wird die Überforderung eines Menschen durch eine Informationsmenge, die er nicht mehr zu verarbeiten im Stande ist, verstanden. In diesem Kapitel wird der Begriff …

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Written on Apr, 05, 2017 by in , | Leave a comment

A Framework for Designing Retrieval Effectiveness Studies of Library Information Systems Using Human Relevance Assessments Christiane Behnert, Dirk Lewandowski, (2017) “A framework for designing retrieval effectiveness studies of library information systems using human relevance assessments”, Journal of Documentation, Vol. 73 Issue: 3, pp.-, doi: 10.1108/JD-08-2016-0099 Download: Preprint Abstract Purpose – This paper demonstrates how to apply traditional information retrieval evaluation …

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Written on Mar, 22, 2017 by in , | Leave a comment

Relevance Clues – Developing an Experimental Design to Examine the Criteria Behind Relevance Judgments Behnert, C.: Relevance Clues – Developing an Experimental Design to Examine the Criteria Behind Relevance Judgments In: M. Gäde/V. Trkulja/V. Petras (Eds.): Everything Changes, Everything Stays the Same? Understanding Information Spaces. Proceedings of the 15th International Symposium of Information Science (ISI 2017), Berlin, 13th—15th March 2017. …

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Written on Mar, 21, 2017 by in , | Leave a comment

Are Ads on Google Search Engine Results Pages Labeled Clearly Enough? Lewandowski, D.,Sünkler, S., Kerkmann, F.: Are Ads on Google Search Engine Results Pages Labeled Clearly Enough? In: M. Gäde/V. Trkulja/V. Petras (Eds.): Everything Changes, Everything Stays the Same? Understanding Information Spaces. Proceedings of the 15th International Symposium of Information Science (ISI 2017), Berlin, 13th—15th March 2017. Glückstadt: Verlag Werner …

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Written on Mar, 06, 2017 by in , | 2 Comments.

Die Suche nach dem „Wie…“ – Tutorials als Gegenstand der Suche Kerkmann, F., Sünkler, S. & Schultheiß, S. (2017). Die Suche nach dem „Wie…“. Information – Wissenschaft & Praxis, 68(1), pp. 58-66. Retrieved 6 Mar. 2017, from doi:10.1515/iwp-2017-0003 Download: Publisher Version Abstract Anleitungen zu verschiedensten Themen, sogenannte Tutorials, erleben seit einiger Zeit einen regelrechten Boom im Web. Immer mehr Angebote …

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Written on Feb, 07, 2017 by in | Leave a comment

Is Google responsible for providing fair and unbiased results? Lewandowski, D.: Is Google responsible for providing fair and unbiased results? In: Floridi, L.; Taddeo, M. (eds.): The Responsibilities of Online Service Providers. Berlin Heidelberg: Springer, 2017. S. 61-77. doi: 10.1007/978-3-319-47852-4_4 Download: Preprint Abstract This chapter discusses the responsibilities of Google as the leading search engine provider to provide fair and …

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Written on Jan, 19, 2017 by in | 2 Comments.

Known-Item Searches Resulting in Zero Hits: Considerations for Discovery Systems Abstract Behnert, C., & Lewandowski, D. (2017). Known-item searches resulting in zero hits: Considerations for discovery systems. The Journal of Academic Librarianship, 43(2), 128–134. doi.org/10.1016/j.acalib.2016.12.002 Download: Preprint The goal of this article is to understand the reasons why known-item search queries entered in a discovery system return zero hits. We …

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