Cited by 148Recommender Systems and TechniquesExplainable Artificial Intelligence (XAI)Innovative Human-Technology Interaction

To explain or not to explain: the effects of personal characteristics when explaining music recommendations

Open access
Millecamp, Martijn, Htun, Nyi Nyi, Conati, Cristina, Verbert, Katrien·2019·Proceedings of the 24th International Conference on Intelligent User Interfaces

Abstract

Recommender systems have been increasingly used in online services that we consume daily, such as Facebook, Netflix, YouTube, and Spotify. However, these systems are often presented to users as a "black box", i.e. the rationale for providing individual recommendations remains unexplained to users. In recent years, various attempts have been made to address this black box issue by providing textual explanations or interactive visualisations that enable users to explore the provenance of recommendations. Among other things, results demonstrated benefits in terms of precision and user satisfaction. Previous research had also indicated that personal characteristics such as domain knowledge, trust propensity and persistence may also play an important role on such perceived benefits. Yet, to date, little is known about the effects of personal characteristics on explaining recommendations. To address this gap, we developed a music recommender system with explanations and conducted an online study using a within-subject design. We captured various personal characteristics of participants and administered both qualitative and quantitative evaluation methods. Results indicate that personal characteristics have significant influence on the interaction and perception of recommender systems, and that this influence changes by adding explanations. For people with a low need for cognition are the explained recommendations the most beneficial. For people with a high need for cognition, we observed that explanations could create a lack of confidence. Based on these results, we present some design implications for explaining recommendations.

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Research works printed but not linked: 6

  1. Ivana Andjelkovic, Denis Parra, and John O'Donovan. 2016. Moodplay: Interactive Mood-based Music Discovery and Recommendation. In Proc. of UMAP '16. ACM, 275-279.
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Authors
Millecamp, M., Htun, N. N., Conati, C., & Verbert, K.
Affiliations
  • KU Leuven (BE)
  • University of British Columbia (CA)
Venue
Proceedings of the 24th International Conference on Intelligent User Interfaces
Publisher
ACM
Published
2019-03-17
Pages
397-407
OpenAlex
W2915495256
Cited by
148
References
52
Citations by year
2026: 19 · 2025: 17 · 2024: 27 · 2023: 18 · 2022: 30 · 2021: 22 · 2020: 10 · 2019: 5
FWCI
13.24
Type
conference paper
Language
en
Open access
Locations
  • ACM International Conference on Intelligent User Interfaces (IUI) (publishedVersion)
  • Lirias (KU Leuven) (submittedVersion, other-oa)
Funders
KU Leuven (C24/16/017)
Topics
  • Physical Sciences › Computer Science › Information Systems › Recommender Systems and Techniques
  • Physical Sciences › Computer Science › Artificial Intelligence › Explainable Artificial Intelligence (XAI)
  • Physical Sciences › Computer Science › Human-Computer Interaction › Innovative Human-Technology Interaction
Keywords
recommender systems, explainable recommendation, black box, personal characteristics, need for cognition, trust propensity, user confidence, music recommendation, user satisfaction

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