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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Evaluation of explanation interfaces in the form of tag clouds
verfasst von : Dr. Fatih Gedikli
Erschienen in: Recommender Systems and the Social Web
Verlag: Springer Fachmedien Wiesbaden
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Current research has shown the important role of explanation facilities in recommender systems based on the observation that explanations can significantly influence the user-perceived quality of such a system [Tintarev and Masthoff, 2012]. In this chapter, we present and evaluate explanation interfaces in the form of
tag clouds
, which are a frequently used visualization and interaction technique on the Web [Lohmann et al., 2009]. We report the result of a user study in which we compare the performance of two new explanation methods based on personalized and non-personalized tag clouds with a previous explanation approach. Overall, the results show that explanations based on tag clouds are not only well-accepted by the users but can also help to improve the efficiency and effectiveness of the explanation process.