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Projektseminar „Similarity Search Algorithms“

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Zusammenfassung

Mithilfe von Verfahren aus dem Bereich Ähnlichkeitssuche können zu einer Anfrage an einen Datenbestand nicht nur exakte, sondern auch ähnliche Objekte gefunden werden, z. B. Bilder mit ähnlichen Motiven wie auf dem Anfragebild. Mit aktuellen Forschungsansätzen aus diesem Bereich befasste sich das Seminar „Similarity Search Algorithms“, welches wir in diesem Bericht vorstellen.

Das Ziel des Seminars war ein breiter Vergleich bekannter Indexierungsalgorithmen mit Datensätzen aus verschiedenen Bereichen. Die Studenten befassten sich mit je zwei Ähnlichkeitsmaßen für Datensätze aus fünf verschiedenen Domänen und mit je einem von sechs verschiedenen Indexstrukturen zur Ähnlichkeitssuche in metrischen Räumen. In diesem Bericht evaluieren wir die Kombination der Ähnlichkeitsmaße mit den Indexstrukturen bzgl. Indexaufbau und knn-Anfragen. Außerdem beschreiben wir die Durchführung des Seminars und werfen einen Blick auf lessons learned.

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Abb. 1

Notes

  1. MAGIX AG. freedb.org. http://www.freedb.org, January 2011.

  2. C. Sadowski and G. Levin. SimHash: Hash-based similarity detection. http://simhash.googlecode.com/svn/trunk/paper/SimHashWithBib.pdf, December 2007.

  3. http://www.hpi-web.de/naumann/sites/SimSearch2010/.

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Danksagung

Wir möchten uns bei allen Studenten bedanken, die erfolgreich und engagiert an unserem Seminar teilgenommen haben.

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Authors and Affiliations

  1. Hasso-Plattner-Institut, Universität Potsdam, Prof.-Dr.-Helmert-Str. 2–3, 14482, Potsdam, Deutschland

    Dustin Lange, Tobias Vogel, Uwe Draisbach & Felix Naumann

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  1. Dustin Lange
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  3. Uwe Draisbach
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Correspondence to Dustin Lange.

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Lange, D., Vogel, T., Draisbach, U. et al. Projektseminar „Similarity Search Algorithms“. Datenbank Spektrum 11, 51–57 (2011). https://doi.org/10.1007/s13222-011-0046-6

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