Publications about Recommender Systems
Published in 2019
Impact of Consuming Suggested Items on the Assessment of Recommendations in User Studies on Recommender Systems
Loepp, B., Donkers, T., Kleemann, T., & Ziegler, J. (2019). In Proceedings of the 28th International Joint Conference on Artificial Intelligence (IJCAI ’19) (pp. 6201–6205). IJCAI Organization.

Rectour 2019: Workshop on recommenders in tourism
Neidhardt, J., Wörndl, W., Kufik, T., Zanker, M., & Barbu, C.-M. (2019). In Proceedings of the 13th ACM Conference on Recommender Systems (pp. 564–565). New York, NY: Association for Computing Machinery, Inc.

Towards Interactive Recommending in Model-based Collaborative Filtering Systems
Loepp, B., & Ziegler, J. (2019). In Proceedings of the 13th ACM Conference on Recommender Systems (RecSys ’19) (pp. 546–547). New York, NY, USA: ACM.

How Can They Know That? A Study of Factors Affecting the Creepiness of Recommendations
Torkamaan, H., Barbu, C.-M., & Ziegler, J. (2019). In T. Bogers & A. Said (Eds.), Proceedings of the 13th ACM Conference on Recommender Systems (pp. 423–427). New York, NY: ACM.

Kartenbasierte Produktraumdarstellung zur Erhöhung von Transparenz und Steuerbarkeit in Empfehlungssystemen
Kunkel, J., Feldkamp, T., & Ziegler, J. (2019). In Mensch und Computer 2019: Tagungsband. New York: ACM.

Measuring the Impact of Recommender Systems – A Position Paper on Item Consumption in User Studies
Loepp, B., & Ziegler, J. (2019). In Proceedings of the 1st Workshop on Impact of Recommender Systems (ImpactRS ’19).

Assessing the Helpfulness of Review Content for Explaining Recommendations
Hernandez-Bocanegra, D. C., & Ziegler, J. (2019). In EARS Workshop at SIGIR’19.

LittleMissFits: Ein Game-With-A-Purpose zur Evaluierung subjektiver Verständlichkeit von latenten Faktoren in Empfehlungssystemen
Kunkel, J., Loepp, B., Dolff, E., & Ziegler, J. (2019). In Mensch und Computer 2019 – Workshopband (pp. 49–56). Gesellschaft für Informatik e.V.

Let Me Explain: Impact of Personal and Impersonal Explanations on Trust in Recommender Systems
Kunkel, J., Donkers, T., Michael, L., Barbu, C.-M., & Ziegler, J. (2019). In Proceedings of the 37th International Conference on Human Factors in Computing Systems (CHI ’19) (pp. 487:1–487:12). New York: ACM.
Rating-based preference elicitation for recommendation of stress intervention
Torkamaan, H., & Ziegler, J. (2019). In Proceedings of the 27th ACM Conference on User Modeling, Adaptation and Personalization - UMAP ’19 (pp. 46–50). ACM Press.

The Influence of Trust Cues on the Trustworthiness of Online Reviews for Recommendations
Barbu, C.-M., Carbonell, G., & Ziegler, J. (2019). In Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing (pp. 1687–1689). New York: ACM Press.

Visualizing Item Spaces to Increase Transparency and Control in Recommender Systems
Kunkel, J., & Ziegler, J. (2019). In AI and HCI Workshop at CHI’19.

The impact of emotionality and trust cues on the perceived trustworthiness of online reviews
Carbonell, G., Barbu, C.-M., Vorgerd, L., & Brand, M. (2019). Cogent Business and Management, 6(1), 1586062.
Empfehlungssysteme
Ziegler, J., & Loepp, B. (2019). In T. Kollmann (Ed.), Handbuch Digitale Wirtschaft. Springer.
Interactive Recommending with Tag-Enhanced Matrix Factorization (TagMF)
Loepp, B., Donkers, T., Kleemann, T., & Ziegler, J. (2019). International Journal of Human Computer Studies, 121, 21–41.
Published in 2018
Multi-criteria rating-based preference elicitation in health recommender systems
Torkamaan, H., & Ziegler, J. (2018). In Proceedings of the Third International Workshop on Health Recommender Systems co-located with Twelfth ACM Conference on Recommender Systems (HealthRecSys’18) (Vol. 2216, pp. 18–23). Aachen.

Impact of Item Consumption on Assessment of Recommendations in User Studies
Loepp, B., Donkers, T., Kleemann, T., & Ziegler, J. (2018). In Proceedings of the 12th ACM Conference on Recommender Systems (RecSys ’18) (pp. 49–53). New York, NY, USA: ACM.
Augmented Reality Based Recommending in the Physical World
Álvarez Márquez, J. O., & Ziegler, J. (2018). In R. Dachselt & G. Weber (Eds.), Mensch und Computer 2018 - Workshopband (pp. 285–291). Bonn: Gesellschaft für Informatik e.V.

Designing Interactive Visualizations of Personalized Review Data for a Hotel Recommender System
Barbu, C.-M., & Ziegler, J. (2018). In J. Neidhardt, W. Wörndl, T. Kuflik, & M. Zanker (Eds.), RecTour 2018: 3rd Workshop on Recommenders in Tourism co-located with the 12th ACM Conference on Recommender Systems (RecSys 2018) (Vol. 2222, pp. 7–12). Aachen: RWTH.

Recommending Running Routes: Framework and Demonstrator
Loepp, B., & Ziegler, J. (2018). In Proceedings of the 2nd Second Workshop on Recommendation in Complex Scenarios (ComplexRec ’18) (pp. 26–29).

Understanding Latent Factors Using a GWAP
Kunkel, J., Loepp, B., & Ziegler, J. (2018). In Proceedings of the Late-Breaking Results track part of the Twelfth ACM Conference on Recommender Systems (RecSys ’18).

Ein Online-Spiel zur Benennung latenter Faktoren in Empfehlungssystemen
Kunkel, J., Loepp, B., & Ziegler, J. (2018). In Mensch und Computer 2018 – Tagungsband. Gesellschaft für Informatik e.V.

Argumentation-based explanations in recommender systems: Conceptual framework and empirical results
Naveed, S., Donkers, T., & Ziegler, J. (2018). In UMAP 2018 - Adjunct Publication of the 26th Conference on User Modeling, Adaptation and Personalization (pp. 293–298). New York, NY, USA: ACM.
New Insights Towards Developing Recommender Systems
Taghavi, M., Bentahar, J., Bakhtiyari, K., & Hanachi, C. (2018). The Computer Journal, 61(3), 319–348.

Trust-Related Effects of Expertise and Similarity Cues in Human-Generated Recommendations
Kunkel, J., Donkers, T., Barbu, C.-M., & Ziegler, J. (2018). In 2nd Workshop on Theory-Informed User Modeling for Tailoring and Personalizing Interfaces (HUMANIZE).

Explaining Recommendations by Means of User Reviews
Donkers, T., Loepp, B., & Ziegler, J. (2018). In Proceedings of the 1st Workshop on Explainable Smart Systems (ExSS ’18).

Negotiation and Reconciliation of Preferences in a Group Recommender System
Álvarez Márquez, J. O., & Ziegler, J. (2018). Journal of Information Processing, 26, 186–200.
Published in 2017

User Control in Recommender Systems: Overview and Interaction Challenges
Jannach, D., Naveed, S., & Jugovac, M. (2017). In D. Bridge & H. Stuckenschmidt (Eds.), E-Commerce and Web Technologies (pp. 21–33). Springer International Publishing.
Towards Health (Aware) Recommender Systems
Schäfer, H., Hors-Fraile, S., Karumur, P. R., Valdez, C. A., Said, A., Torkamaan, H., … Trattner, C. (2017). In Proceedings of the 2017 International Conference on Digital Health (pp. 157–161). New York: ACM.
Improving the Shopping Experience with an Augmented Reality-Enhanced Shelf
Álvarez Márquez, J. O., & Ziegler, J. (2017). In Mensch und Computer 2017 - Workshopband (pp. 629–632).

Towards a Design Space for Personalizing the Presentation of Recommendations
Barbu, C.-M., & Ziegler, J. (2017). In L. Boratto, S. Carta, & G. Fenu (Eds.), EnCHIReS 2017: Engineering Computer-Human Interaction in Recommender Systems : Proceedings of the Second Workshop on Engineering Computer-Human Interaction in Recommender Systems co-located with the 9th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2017) (Vol. 1945, pp. 10–17).

Sequential User-based Recurrent Neural Network Recommendations
Donkers, T., Loepp, B., & Ziegler, J. (2017). In Proceedings of the 11th ACM Conference on Recommender Systems (RecSys ’17) (pp. 152–160). New York, NY, USA: ACM.

Co-Staying: a Social Network for Increasing the Trustworthiness of Hotel Recommendations
Barbu, C.-M., & Ziegler, J. (2017). In J. Neidhardt, D. Fesenmaier, T. Kuflik, & W. Wörndl (Eds.), RecTour 2017: 2nd Workshop on Recommenders in Tourism : Proceedings of the 2nd Workshop on Recommenders in Tourism co-located with 11th ACM Conference on Recommender Systems (RecSys 2017) Como, Italy, August 27, 2017 (Vol. 1906, pp. 35–39).

Users’ Choices About Hotel Booking: Cues for Personalizing the Presentation of Recommendations
Barbu, C.-M., & Ziegler, J. (2017). In T. Domonkos & P. Pu (Eds.), Poster Proceeding of ACM Recsys 2017: Proceedings of the Poster Track of the 11th ACM Conference on Recommender Systems (RecSys 2017) Como, Italy, August 28, 2017 (Vol. 1905, pp. 44–45).

User Model Dimensions for Personalizing the Presentation of Recommendations
Barbu, C.-M., & Ziegler, J. (2017). In P. Brusilovsky, M. de Gemmis, A. Felfernig, P. Lops, J. O’Donovan, N. Tintarev, & C. M. Willemsen (Eds.), IntRS 2017: Interfaces and Human Decision Making for Recommender Systems : Proceedings of the 4th Joint Workshop on Interfaces and Human Decision Making for Recommender Systems co-located with ACM Conference on Recommender Systems (RecSys 2017) (Vol. 1884, pp. 20–23).

Enhancing an Interactive Recommendation System with Review-based Information Filtering
Feuerbach, J., Loepp, B., Barbu, C.-M., & Ziegler, J. (2017). In Proceedings of the 4th Joint Workshop on Interfaces and Human Decision Making for Recommender Systems (IntRS ’17) (Vol. 1884, pp. 2–9).

On User Awareness in Model-Based Collaborative Filtering Systems
Loepp, B., & Ziegler, J. (2017). In Proceedings of the 1st Workshop on Awareness Interfaces and Interactions (AWARE ’17).

A 3D Item Space Visualization for Presenting and Manipulating User Preferences in Collaborative Filtering
Kunkel, J., Loepp, B., & Ziegler, J. (2017). In Proceedings of the 22nd International Conference on Intelligent User Interfaces (IUI ’17) (pp. 3–15). New York, NY, USA: ACM.
Published in 2016
Hootle+: A Group Recommender System Supporting Preference Negotiation
Álvarez Márquez, J. O., & Ziegler, J. (2016). In T. Yuizono, H. Ogata, U. H. Hoppe, & J. Vassileva (Eds.), Collaboration and Technology: 22nd International Conference, CRIWG 2016, Kanazawa, Japan, September 14-16, 2016, Proceedings (Vol. 9848, pp. 151–166). Cham: Springer.

Interactive Recommending: Framework, State of Research and Future Challenges
Loepp, B., Barbu, C.-M., & Ziegler, J. (2016). In Proceedings of the 1st Workshop on Engineering Computer-Human Interaction in Recommender Systems (EnCHIReS ’16) (pp. 3–13).

Increasing the Trustworthiness of Recommendations by Exploiting Social Media Sources
Barbu, C.-M. (2016). In Proceedings of the 10th ACM Conference on Recommender Systems (pp. 447–450). New York, NY, USA: ACM.

Towards Understanding Latent Factors and User Profiles by Enhancing Matrix Factorization with Tags
Donkers, T., Loepp, B., & Ziegler, J. (2016). In Poster Proceedings of the 10th ACM Conference on Recommender Systems (RecSys ’16).

Tag-Enhanced Collaborative Filtering for Increasing Transparency and Interactive Control
Donkers, T., Loepp, B., & Ziegler, J. (2016). In Proceedings of the 24th Conference on User Modeling Adaptation and Personalization (UMAP ’16) (pp. 169–173). New York, NY, USA: ACM.
Supporting users in setting effective goals in activity tracking
Herrmanny, K., Ziegler, J., Dogangün, A., & PERSUASIVE 2016. (2016). In A. Meschtscherjakov, B. De Ruyter, V. Fuchsberger, M. Murer, & M. Tscheligi (Eds.), Persuasive Technology: 11th International Conference ; PERSUASIVE 2016 ; Salzburg, Austria, April 5-7, 2016 ; Proceedings (Vol. 9638, pp. 15–26). Cham: Springer International Publishing.
Published in 2015
Preference Elicitation and Negotiation in a Group Recommender System
Álvarez Márquez, J. O., & Ziegler, J. (2015). In J. Abascal, S. Barbosa, M. Fetter, T. Gross, P. Palanque, & M. Winckler (Eds.), Human-Computer Interaction – INTERACT 2015: 15th IFIP TC 13 International Conference, Bamberg, Germany, September 14-18, 2015, Proceedings, Part II. Cham: Springer International Publishing.

Merging Latent Factors and Tags to Increase Interactive Control of Recommendations
Donkers, T., Loepp, B., & Ziegler, J. (2015). In Poster Proceedings of the 9th ACM Conference on Recommender Systems (RecSys ’15).

3D-Visualisierung zur Eingabe von Präferenzen in Empfehlungssystemen
Kunkel, J., Loepp, B., & Ziegler, J. (2015). In Mensch und Computer 2015 – Tagungsband (pp. 123–132). Berlin: De Gruyter Oldenbourg.

Merging Interactive Information Filtering and Recommender Algorithms: Model and Concept Demonstrator
Loepp, B., Herrmanny, K., & Ziegler, J. (2015). i-Com, 14(1), 5–17.

Blended Recommending: Integrating Interactive Information Filtering and Algorithmic Recommender Techniques
Loepp, B., Herrmanny, K., & Ziegler, J. (2015). In Proceedings of the 33rd International Conference on Human Factors in Computing Systems (CHI ’15) (pp. 975–984). New York, NY, USA: ACM.
Published in 2014
Hybreed: a software framework for developing context-aware hybrid recommender systems
Hussein, T., Linder, T., Gaulke, W., & Ziegler, J. (2014). User Modeling and User Adapted Interaction, 24(1), 121–174.

MyMovieMixer: Ein hybrider Recommender mit visuellem Bedienkonzept
Herrmanny, K., Schering, S., Berger, R., Loepp, B., Günter, T., Hussein, T., & Ziegler, J. (2014). In Mensch und Computer 2014 – Tagungsband (pp. 45–54). Berlin: De Gruyter Oldenbourg.

Choice-based Preference Elicitation for Collaborative Filtering Recommender Systems
Loepp, B., Hussein, T., & Ziegler, J. (2014). In Proceedings of the 32nd International Conference on Human Factors in Computing Systems (CHI ’14) (pp. 3085–3094). New York, NY, USA: ACM.
Hybreed: A Software Framework for Developing Context-Aware Hybrid Recommender Systems
Hussein, T., Linder, T., Gaulke, W., & Ziegler, J. (2014). User Modeling and User Adapted Interaction, 24(1), 121–174.
Published in 2013
Agent-based Computational Investing Recommender System
Taghavi, M., Bakhtiyari, K., & Scavino, E. (2013). In Proceedings of the 7th ACM Conference on Recommender Systems (pp. 455–458). New York, NY, USA: ACM.
A conceptual model and a software framework for developing context aware hybrid recommender systems
Hussein, T. (2013). München: Hut.
Semi-automatic generation of recommendation processes and their GUIs
Kaindl, H., Wach, E., Okoli, A., Popp, R., Hoch, R., Gaulke, W., & Hussein, T. (2013). In Proceedings of the 18th International Conference on Intelligent User Interfaces (IUI ’13). ACM.

Interaktive Empfehlungsgenerierung mit Hilfe latenter Produktfaktoren
Loepp, B., Hussein, T., & Ziegler, J. (2013). In Mensch & Computer 2013 – Tagungsband (pp. 17–26). München: Oldenbourg.
A Context-Aware Shopping Portal Based on Semantic Models
Hussein, T., Linder, T., & Ziegler, J. (2013). In T. Hussein, H. Paulheim, S. Lukosch, J. Ziegler, & G. Calvary (Eds.), Semantic Models for Adaptive Interactive Systems. London: Springer.
Published in 2012
Service-Based Recommendations for Context-Aware Navigation Support
Münter, D., Hussein, T., Gaulke, W., & Ziegler, J. (2012). In H. Proff, J. Schönharting, D. Schramm, & J. Ziegler (Eds.), Zukünftige Entwicklungen in der Mobilität: Betriebswirtschaftliche und Technische Aspekte - Tagungsband des 3. Wissenschaftsforum Mobilität (1. Auflage). Wiesbaden: Gabler Verlag.
Published in 2011
Situationsgerechtes Recommending – Kontextadaptive, hybride Empfehlungsgenerierung
Hussein, T., & Ziegler, J. (2011). Informatik Spektrum, 34(2), 143–152.
Published in 2010
Wahrnehmung und Akzeptanz von systemgenerierten Produktempfehlungen
Hussein, T., Gaulke, W., Hartmann, A., & Ziegler, J. (2010). In J. Ziegler & A. Schmidt (Eds.), Mensch & Computer 2010 (1st ed.). München: Oldenbourg.
Kontextabhängige Empfehlung von Services zur intelligenten Navigationsunterstützung
Münter, D., Hussein, T., & Gaulke, W. (2010). In U. Schroeder (Ed.), Interaktive Kulturen - Proceedings der Workshops der Mensch & Computer 2010 - 10. fachübergreifende Konferenz für interaktive und kooperative Medien, DeLFI 2010 - Die 8. E-Learning Fachtagung Informatik der Gesellschaft für Informatik e.V. und der Entertainment Interfaces 2010 (1. Auflage). Berlin: Logos Verlag.
Hybride, kontext-sensitive Generierung von Produktempfehlungen
Hussein, T., & Gaulke, W. (2010). i-Com – Zeitschrift Für Interaktive Und Kooperative Medien, 9(2), 16–23.

Context-aware Recommendations
Hussein, T. (2010). In N. Baloian, W. Luther, D. Söffker, & Y. Urano (Eds.), Interfaces and Interaction Design for Learning and Simulation Environments. Berlin: Logos.

A framework and an architecture for context-aware group recommendations
Hussein, T., Linder, T., Gaulke, W., & Ziegler, J. (2010). In G. Kolfschoten, T. Herrmann, & S. Lukosch (Eds.), Collaboration and Technology: 16th International Conference, CRIWG 2010, Maastricht, The Netherlands, September 20-23, 2010. Proceedings. Berlin: Springer.

Explanation of spreading activation based recommendations
Hussein, T., & Neuhaus, S. (2010). In Semantic Models for Adaptive Interactive Systems (SEMAIS), 1st Workshop in conjunction with the International Conference on Intelligent User Interfaces (IUI) 2010. Hong Kong, China.
Published in 2009

Context-aware Recommendations on Rails
Hussein, T., Linder, T., Gaulke, W., & Ziegler, J. (2009). In L. Bergmann (Ed.), Proceedings of the 2009 Workshop on Context-aware Recommender Systems (CARS 2009). New York, NY, USA.
Published in 2008

Adapting web sites by spreading activation in ontologies
Hussein, T., & Ziegler, J. (2008). In ReColl ’08: Int. Workshop on Recommendation and Collaboration (in conjunction with IUI 2008). Gran Canaria.
Published in 2007

Context-adaption based on ontologies and spreading activation
Hussein, T., Westheide, D., & Ziegler, J. (2007). In A. Hinneburg (Ed.), LWA 2007: Lernen – Wissen – Adaption. Martin-Luther-Universität Halle-Wittenberg.
Published in 2006
Maßarbeit statt Konfektion - Kontextadaption liefert passgenaue Informationen
Ziegler, J., Kaltz, W. J., Lohmann, S., & Hussein, T. (2006). Forum Forschung, 42–47.