User Interfaces for Counteracting Decision Manipulation in Group Recommender Systems

Autor: Viet Man Le, Martin Stettinger, Ralph Samer, Thi Ngoc Trang Tran, Alexander Felfernig, Müslüm Atas
Rok vydání: 2019
Předmět:
Zdroj: UMAP (Adjunct Publication)
Adjunct Publication of the 27th Conference on User Modeling, Adaptation and Personalization-UMAP19 Adjunct
Adjunct Publication of the 27th Conference on User Modeling, Adaptation and Personalization -UMAP'19 Adjunct
Adjunct Publication of the 27th Conference on User Modeling, Adaptation and Personalization-UMAP'19 Adjunct
DOI: 10.1145/3314183.3324977
Popis: In group recommender systems,decision manipulation refers to an attack in which a group member makes attempts to push his/her favorite options. In this paper, we propose user interfaces to counteract decision manipulation in group recommender systems. The proposed user interfaces visualize information dimensions regarding rating adaptations of group members at different transparency levels. The results show that the user interface at the highest transparency level best helps to discourage users from decision manipulation. Besides, the ability of the user interfaces to counteract decision manipulation differs depending on the dimensions represented in the user interfaces. The information dimensions regarding "\textititem ratings " and "\textitgroup recommendations " have the strongest impacts on preventing users from decision manipulation.
Databáze: OpenAIRE