Talks and Poster Presentations (with Proceedings-Entry):

A. Delic, J. Masthoff, J. Neidhardt, H. Werthner:
"How to Use Social Relationships in Group Recommenders: Empirical Evidence";
Talk: UMAP 2018: 26th Conference on User Modeling, Adaptation and Personalization, Singapore; 2018-07-08 - 2018-07-11; in: "UMAP '18 Proceedings of the 26th Conference on User Modeling, Adaptation and Personalization", ACM New York, (2018), ISBN: 978-1-4503-5589-6; 121 - 129.

English abstract:
In this paper we present the results of a user study focusing on social relationships within small groups. The goal is to better understand how to incorporate the information about social relationships in group recommendation models. Our analysis, conducted on a data set of 150 participants in 41 groups deciding on a travel destination to visit together, brings out some intriguing outcomes. We demonstrate that social centrality is hardly an indicator of the social influence in the decision-making process of "equality matching" types of groups. However, socially central group members and socially close groups are significantly happier with group decisions than those who are loosely related. Moreover, in this paper we show that social relationships are indicators of other concepts relevant in group settings, therefore in group recommender systems as well.

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Electronic version of the publication:

Created from the Publication Database of the Vienna University of Technology.