Kunkel, Johannes; Schwenger, Claudia; Ziegler, Jürgen:
NewsViz: Depicting and Controlling Preference Profiles Using Interactive Treemaps in News Recommender Systems
In: UMAP 2020 - Proceedings of the 28th ACM Conference on User Modeling, Adaptation and Personalization - UMAP 2020; Genoa, Italy; 14 -17 July 2020 - New York: Association for Computing Machinery (ACM), 2020, S. 126 - 135
2020Buchaufsatz/Kapitel in TagungsbandOA Gold
InformatikFakultät für Ingenieurwissenschaften » Informatik und Angewandte Kognitionswissenschaft » Informatik » Interaktive Systeme / Interaktionsdesign
Titel in Englisch:
NewsViz: Depicting and Controlling Preference Profiles Using Interactive Treemaps in News Recommender Systems
Autor*in:
Kunkel, JohannesUDE
LSF ID
57574
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Schwenger, Claudia
;
Ziegler, JürgenUDE
GND
1015876811
LSF ID
3881
ORCID
0000-0001-9603-5272ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
Open Access?:
OA Gold
Scopus ID
Sprache des Textes:
Englisch
Schlagwort, Thema:
information visualization ; interactive recommending ; news recommender systems ; structural equation modeling ; treemaps

Abstract in Englisch:

News articles are increasingly consumed digitally and recommender systems (RS) are widely used to personalize news feeds for their users. Thereby, particular concerns about possible biases arise. When RS filter news articles opaquely, they might "trap" their users in filter bubbles. Additionally, user preferences change frequently in the domain of news, which is challenging for automated RS. We argue that both issues can be mitigated by depicting an interactive version of the user's preference profile inside an overview of the entire domain of news articles. To this end, we introduce NewsViz, a RS that visualizes the domain space of online news as treemap, which can interactively be manipulated to personalize a feed of suggested news articles. In a user study (N=63), we compared NewsViz to an interface based on sliders. While both prototypes yielded high results in terms of transparency, recommendation quality and user satisfaction, NewsViz outperformed its counterpart in the perceived degree of control. Structural equation modeling allows us to further uncover hitherto underestimated influences between quality aspects of RS. For instance, we found that the degree of overview of the item domain influenced the perceived quality of recommendations.