Extending singular value decomposition based recommendation systems with tags and ontology

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2014

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Turgut, Yakup

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Due to increase of the volume of data related to user ratings on items, in recent years, recommendation systems became very popular, which uses this data in order to rec- ommend items to users in many different domains. Singular Value Decomposition is one of the most widely studied collaborative ﬁltering recommendation techniques. In some applications users are also allowed to enter (sometimes free) tags in addition to their ratings on items. Adding tags in addition to regular users’ ratings on items have also been studied from different perspectives. In this work, we embedded tags entered by users into SVD technique in a simple but novel way. We also present methods that incorporate ontology to determine relationships between tags into consideration while dealing with movie recommender systems. We have applied our approach on movie recommendation system.

Subject Keywords

Information filtering systems., Information storage and retrieval systems, Recommender systems (Information filtering).

URI

http://etd.lib.metu.edu.tr/upload/12617442/index.pdf
https://hdl.handle.net/11511/23643

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

Y. Turgut, “Extending singular value decomposition based recommendation systems with tags and ontology,” M.S. - Master of Science, Middle East Technical University, 2014.