Author : Sven Konstantin

Written on Dec, 22, 2016 by in | 1 Comment.
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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 | 1 Comment.
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.: Impact of Gender and Age on Performing Search Tasks Online. In: Reiterer, H.; Deussen, O.: Mensch und Computer 2012. München: Oldenbourg Verlag, 2012. S. 23-32. DOI: 10.1524/9783486718782.23 Download: Preprint / Publisher Version Abstract Altmetrics

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Written on Apr, 21, 2016 by in ,

Suchmaschinen Lewandowski, D.: Suchmaschinen. In: Kuhlen, R.; Semar, W.; Strauch, D.: Grundlagen der praktischen Information und Dokumentation. Berlin: de Gruyter, 2013. S. 494-508. DOI:10.1515/9783110258264.494 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 nach systemseitig angenommener Relevanz …

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Written on Apr, 21, 2016 by in ,

Living in a world of biased search engines (Guest Editorial) Lewandowski, D.: Living in a world of biased search engines (Guest Editorial). Online Information Review 39(3), 278-280. DOI: 10.1108/OIR-03-2015-0089 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 …

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Written on Apr, 21, 2016 by in ,

Ranking Search Results in Library Information Systems – Considering Ranking Approaches Adapted From Web Search Engines Behnert, C.; Lewandowski, D.: Ranking Search Results in Library Information Systems – Considering Ranking Approaches Adapted From Web Search Engines. Journal of Academic Librarianship 41(3), 725-735. DOI: 10.1016/j.acalib.2015.07.010 Download: Preprint / Publisher Version Abstract For an information retrieval system to be successful, it must have …

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Written on Apr, 21, 2016 by in ,

Evaluating Popularity Data for Relevance Ranking in Library Information Systems Plassmeier, K.; Borst, T.; Behnert, C.; Lewandowski, D.: Evaluating Popularity Data for Relevance Ranking in Library Information Systems. Proceedings of the 78th Annual Meeting of the Association for Information Science and Technology, St. Louis, Missouri. DOI: 10.1002/pra2.2015.1450520100125 Download: Publisher Version Abstract In this poster, we present our work in progress to …

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Written on Apr, 21, 2016 by in ,

Lebensmittelkontrolle 2.0 Krewinkel, A.; Sünkler, S.; Lewandowski, D.; Finck, N.; Tolg, B.; Kroh, L.W.; Schreiber, G.A.; Fritsche, J.: Lebensmittelkontrolle 2.0. Journal für Verbraucherschutz und Lebensmittelsicherheit. DOI: 10.1007/s00003-015-1000-6 Download: Preprint / Publisher Version Zusammenfassung Der Lebensmittelhandel im Internet erhält eine stetig zunehmende Relevanz im E-Commerce und stellt Überwachungsbehörden vor neue Herausforderungen. Behörden sind dazu verpflichtet, deutsche Lebensmittelhändler nicht nur im stationären Handel, …

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