User-Centred Social Media

Our group participates in the DFG-funded Research Training Group (Graduate School) “User-Centred Social Media” which aims at developing new models and methods for analyzing, designing and evaluating social media from a user-centred perspective. The main research fields in the RTG are modelling and understanding user behavior, social media engineering, and social media analytics. The program is an interdisciplinary endeavor located in our University department that fully integrates researchers from computer science and psychology. We contribute to the RTG with two PhD topics which lie in the areas of trustworthy recommendations based on social media sources and health-related behavioural interventions.

Modelling and Understanding User Behavior


Social Media Engineering



Catalin-Mihai Barbu

External PhD Student

Helma Torkamaan


Jürgen Ziegler

Full Professor

Related publications

Explaining Recommendations by Means of Aspect-Based Transparent Memories

Impact of Item Consumption on Assessment of Recommendations in User Studies

Exploring Mental Models for Transparent and Controllable Recommender Systems: A Qualitative Study

Measuring the Impact of Recommender Systems – A Position Paper on Item Consumption in User Studies

Impact of Consuming Suggested Items on the Assessment of Recommendations in User Studies on Recommender Systems

Let Me Explain: Impact of Personal and Impersonal Explanations on Trust in Recommender Systems

The Influence of Trust Cues on the Trustworthiness of Online Reviews for Recommendations

The impact of emotionality and trust cues on the perceived trustworthiness of online reviews

Designing Interactive Visualizations of Personalized Review Data for a Hotel Recommender System

Trust-Related Effects of Expertise and Similarity Cues in Human-Generated Recommendations

More related publications »

Related projects


User-controllable methods for generating trustworthy recommendations from social media sources