The Effectiveness of Personalized Movie Explanations: An Experiment Using Commercial Meta-data

Nava Tintarev, Judith Masthoff

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

32 Citations (Scopus)
4 Downloads (Pure)


This paper studies the properties of a helpful and trustworthy explanation in a movie recommender system. It discuss the results of an experiment based on a natural language explanation prototype. The explanations were varied according to three factors: degree of personalization, polarity and expression of unknown movie features. Personalized explanations were not found to be significantly more Effective than nonpersonalized, or baseline explanations. Rather, explanations in all three conditions performed surprisingly well. We also found that participants evaluated the explanations themselves most highly in the personalized, feature-based condition.
Original languageEnglish
Title of host publicationAdaptive Hypermedia and Adaptive Web-Based Systems
Subtitle of host publication5th International Conference, AH 2008, Hannover, Germany, July/August, 2008, Proceedings
EditorsWolfgang Nejdl, Judy Kay, Pearl Pu, Eelco Herder
Place of PublicationBerlin, Germany
ISBN (Print)3540709843, 978-3540709848
Publication statusPublished - 18 Jul 2008

Publication series

NameLecture Notes in Computer Science
PublisherSpringer Verlag
ISSN (Print)0302-9743


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