Hanna Schäfer

Other Websites

Research Interests

  • Recommender Systems and Nutrition Assistance Systems
  • Persuasive Systems and Social Motivation
  • Education using Serious Games

Teaching Assistance

SS 2019Information Visualization I



  • Hanna Schäfer, and Martijn Willemsen: "Rasch-based Tailored Goals for Nutrition Assistance System.", ACM IUI, Los Angeles, CA, USA. 2019


  • Hanna Schäfer, Joachim Bachner, Sebastian Pretscher, Georg Groh, and Yolanda Demetriou: "Study on Motivating Physical Activity in Children with Personalized Gamified Feedback.", ACM UMAP, Singapore, Singapore, 2018. PDF
  • Leipold, N., Madenach, M., Schäfer, H., Lurz, M., Terzimehić, N., Groh, G., Böhm, M., Gedrich, K., Krcmar, H.: "Nutrilize a Personalized Nutrition Recommender System: an enable study.", In Proceedings of the Third International Workshop on Health Recommender Systems co-located with Twelfth ACM Conference on Recommender Systems (HealthRecSys’18), Vancouver, BC, Canada, 2018 PDF


  • Schäfer, H., Plecher, D., Holzmann, S., Groh, G., Klinker, G., Holzapfel, C., Hauner, H. (2017) "NUDGE - NUtritional, Digital Games in Enable.", POSITIVE GAMING - Workshop on Gamification and Games for Wellbeing, CHIPlay, Amsterdam, Netherlands, 2017 PDF
  • Sailer, M., Schäfer, H. & Groh, G., (2017). Group Motivation for Social Games. In: Burghardt, M., Wimmer, R., Wolff, C. & Womser-Hacker, C. (Hrsg.), Mensch und Computer 2017 - Tagungsband. Regensburg: Gesellschaft für Informatik e.V..(S. 351-354). PDF
  • Hanna Schäfer, Mehdi Elahi, David Elsweiler, Georg Groh, Morgan Harvey, Bernd Ludwig, Francesco Ricci, and Alan Said: "User Nutrition Modelling and Recommendation-Balancing Simplicity and Complexity", ACM UMAP, Bratislava, Slovakia, 2017 PDF
  • Hanna Schäfer, Santiago Hors-Fraile, Raghav Pavan Karumur, André Calero Valdez, Alan Said, Helma Torkamaan, Tom Ulmer, and Christoph Trattner: "Towards Health (Aware) Recommender Systems", ACM Digital Health, London, UK, 2017 PDF


  • Nađa Terzimehić, Nadja Leipold, Hanna Schäfer, Mira Madenach, Markus Böhm, Georg Groh, and Kurt Gedrich: "Can an Automated Personalized Nutrition Assistance System Successfully Change Nutrition Behavior?-Study Design", ICIS, Dublin, Ireland, 2016 PDF
  • Hanna Schäfer, Georg Groh, David Plecher, Gudrun Klinker, Mira Madenach, Kurt Gedrich, Nađa Terzimehić, Nadja Leipold, and Markus Böhm: "Smart Personalized Nutrition aus der Perspektive soziotechnischer Systeme", FoodLab Magazin, 2016  PDF 
  • Hanna Schaefer: "Personalized Support for Healthy Nutrition Decisions", RecSys'16 Doctoral Consortium, Boston, MA, USA, 2016 PDF


  • Hanna Schaefer, Georg Groh, Johann Schlichter, Silvia Kolossa, Hannelore Daniel, Ralf Hecktor and Theresa Greupner: "Personalized Food Recommendation", DMRS (International Workshop on Decision Making and Recommender Systems) Workshop, Bozen, 2015 PDF
  • H. Schafer, J. L. Viegas, M. C. Ferreira, S. M. Vieira and J. M. C. Sousa: "Analysing the segmentation of energy consumers using mixed fuzzy clustering", Fuzzy Systems (FUZZ-IEEE), 2015 IEEE International Conference on, Istanbul, 2015, pp. 1-7. doi: 10.1109/FUZZ-IEEE.2015.7338120 PDF
  • Ferreira, M. C., Salgado, C. M., Viegas, J. L., Schafer, H., Azevedo, C. S., Vieira, S. M., & Sousa, J.: "Fuzzy modeling based on Mixed Fuzzy Clustering for health care applications", Fuzzy Systems (FUZZ-IEEE), 2015 IEEE International Conference on, Istanbul, 2015, pp. 1-5. doi: 10.1109/FUZZ-IEEE.2015.7338028 PDF
  • F. Dias, H. Schafer, L. Natal and C. Cardeira, "Mobile Robot Localisation for Indoor Environments Based on Ceiling Pattern Recognition," Autonomous Robot Systems and Competitions (ICARSC), 2015 IEEE International Conference on, Vila Real, 2015, pp. 65-70. doi: 10.1109/ICARSC.2015.32 PDF


  • Siming Chen, Cong Guo, Xiaoru Yuan, Fabian Merkle, Hanna Schaefer and Thomas Ertl: "OCEANS: online collaborative explorative analysis on network security", Proceedings of the Eleventh Workshop on Visualization for Cyber Security (VizSec'14), Pages 1-8, Paris, France, Nov.10, 2014. PDF


  • Siming Chen, Fabian Merkle, Hanna Schafer, Hongwei Ai, Cong Guo, Xiaoru Yuan and Thomas Ertl: "AnNetTe - Visual Analytics for Network Security Data", In Proceedings of IEEE Symposium on Visual Analytics Science and Technology (VAST Challenge), Award of Outstanding Situation Awareness, 2013. PDF