Author : Sven Konstantin

Written on Feb, 28, 2017 by in | Leave a comment

Ringvorlesung „Digitale Information und Manipulation“ 20. April – 22. Juni 2017 Immer donnerstags von 18:00 – 19:30 Uhr Das genaue Programm steht noch nicht fest. Möchten Sie es als erstes bekommen? Dann tragen Sie sich für unseren Newsletter ein! In den aktuellen Informationsumgebungen des Internet stellen sich Fragen nach Information und Manipulation auf eine neue Weise: Welche Rolle spielen manipulierte …

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Written on Feb, 07, 2017 by in | 1 Comment.

Is Google responsible for providing fair and unbiased results? Lewandowski, D. (2017). Is Google Responsible for Providing Fair and Unbiased Results? In M. Taddeo & L. Floridi (Hrsg.), The Responsibilities of Online Service Providers (Bd. 31, S. 61–77). Berlin Heidelberg: Springer. Download: Preprint / Publisher Version Abstract This chapter discusses the responsibilities of Google as the leading search engine provider to …

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Written on Jan, 19, 2017 by in | 3 Comments.

Known-Item Searches Resulting in Zero Hits: Considerations for Discovery Systems 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. Download: Preprint / Publisher Version Abstract The goal of this article is to understand the reasons why known-item search queries entered in a discovery system return zero hits. …

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Written on Dec, 22, 2016 by in | 1 Comment.

Relevance Clues: Development and empirical examination of a model for relevance decisions on search results based on individual user criteria In today’s knowledge-based society, people regularly search for information in digital information systems. They decide whether a search result is helpful to solve their search task or not based on diverse and highly subjective criteria. The purpose of this research …

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Written on Nov, 25, 2016 by in | 3 Comments.
Dirk Lewandowski

Prof. Dr. Dirk Lewandowski is a professor of information research and information retrieval at the Hamburg University of Applied Sciences, Germany. He is the editor of Aslib Journal of Information Management (formerly: Aslib Proceedings), a ISI-ranked information science journal. Dirk Lewandowski studied library science at the School of Library Science in Stuttgart, as well as philosophy, information science, and media …

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Written on Nov, 25, 2016 by in | 1 Comment.

Prof. Dr. Ulrike Spree is a Professor for knowledge organization, information and user experience at the Hamburg University of Applied Sciences, Germany. She is chairwoman of the examinationboard and internship comissioner. Ulrike Spree was a lecturer for German language and regional studies until 1990 at the University of Salford (UK). In 1995 she recieved her Ph.D. in history from the …

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Written on Apr, 21, 2016 by in ,

Neue Formen der Relevanz-Sortierung in bibliothekarischen Informationssystemen: Das DFG-Projekt LibRank Abstract The project explores new approaches to relevance ranking in library information systems. Based on insights into the ranking of web search engines, quality-indicating factors, e. g. freshness, popularity and availability, are taken into consideration. The conceptualized methods are being implemented into a test system based on a library’s search …

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Written on Apr, 21, 2016 by in ,

Impact of Gender and Age on Performing Search Tasks Online Singer, G., Norbisrath, U., & Lewandowski, D. (2012). Impact of Gender and Age on performing Search Tasks Online. In H. Reiterer & O. Deussen (Hrsg.), Mensch & Computer 2012 (S. 23–32). München: Oldenbourg Verlag. Download: Preprint / Publisher Version Abstract More and more people use the Internet to work on …

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Written on Apr, 21, 2016 by in ,

Suchmaschinen Lewandowski, D. (2013). Suchmaschinen. In R. Kuhlen, W. Semar, & D. Strauch (Hrsg.), Grundlagen der praktischen Information und Dokumentation. (6. Ausgabe, S. 495–508). Berlin: De Gruyter. Download: Publisher Version Einleitung Eine Suchmaschine (auch: Web-Suchmaschine; Universalsuchmaschine) ist ein Computersystem, das Inhalte aus dem World Wide Web mittels Crawling erfasst und über eine Benutzerschnittstelle durchsuchbar macht, wobei die Ergebnisse in einer …

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Written on Apr, 21, 2016 by in ,

Living in a world of biased search engines (Guest Editorial) Lewandowski, D. (2015). Living in a world of biased search engines. Online Information Review, 39(3), 278–280. Download: Preprint / Publisher Version Preview When looking at Internet usage, we see that searching is one of the dominant activities (Purcell et al., 2012), with more than 18 billion queries entered into the …

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