Prof. Christoph Trattner

About us

Headshot of Christoph Trattner


Centre Director
Fields of Competence
Computer Vision
Connected to
WP6: Centre Management
WP2: User Modeling, Personalization & Engagement
University of Bergen


/ Biography

I am a Full Professor (1404) at the University of Bergen and Center Director of the Research Centre for Responsible Media Technology & Innovation – SFI MediaFutures worth around 26 million EUR. I am also the founder of the DARS research group at UiB and hold a 10% Research Professor (Forsker I) position in NORCE (NKLM, department of Health) one of Norway’s largest research institutions. I am also an External Lecturer at MODUL University Vienna, Austria’s leading international private university. I have received a PhD (with distinction), an MSc (with distinction) and a BSc in Computer Science and Telematics from Graz University of Technology (Austria). I am an ACM Senior Member and a former Austrian Research Promotion Agency (FFG) fellow, Marshall Plan and European Research Consortium for Informatics and Mathematics (ERICM) fellow and have been working at Graz University of Technology from 2009-2012, the University of Pittsburgh from 2011-2012, the Norwegian University of Science and Technology from 2014-2015, and have been visiting Yahoo! Labs Barcelona in 2014 and CWI Amsterdam in 2015 two times. I position my research in two central specializations in the Information Science research field. The first is “Behavioral Data Analytics” and the second is “Recommender Systems”. Since 2009, I published over 100 scientific articles in top venues about my work and have acquired over 54 million Euros in funding on European and (inter) national level – 30 million as the PI. Examples of outlets where my work has been published includes NATURE Sustainability, JASIST, EPJ Data Science, UMUAI, WWW, AAAI ICWSM or ACM SIGIR. I am also the winner of several Best Paper/Poster Awards and Nominations, including, the Best Paper Award Honorable Mention at the prestigious CORE A* ranked The Web Conference in 2017. I regularly act as a (senior) PC member on several top-tier – CORE A* ranked – conferences and co-organize or co-chair a number of workshops and conferences. Recent examples include ACM RecSys in 2018 – 2020 (as Workshop/Late-Breaking Results co-chair) and ACM SIGIR 2020 – 2021 (as senior PC). I am a steering board member of CEDAS (Center for Data Science) at UiB, a member of the study program board of the Information Science program at UiB and a member of the editorial board of Elsevier’s journal on Online Social Networks and Media, the Open Access Journal Future Internet, Frontiers in Big Data, Springer’s Journal of Intelligent Information Systems, and AI and Ethics. Since 2009, I have taught over 2000 students in Austria and Norway, in over 35 courses on BSc, MSc, MBA and PhD level about ICT, and I supervised over 35 students on their Master or PhD thesis. Since June 2021, I am an appointed ACM Distinguished Speaker!

/ Publications

Publications from 2020 and before are not direct results of the SFI MediaFutures, but are key results from our team members working on related topics in MediaFutures.


Responsible media technology and AI: challenges and research directions Journal Article

Trattner, Christoph; Jannach, Dietmar; Motta, Enrico; Meijer, Irene Costera; Diakopoulos, Nicholas; Elahi, Mehdi; Opdahl, Andreas Lothe; Tessem, Bjørnar; Borch, Njål; Fjeld, Morten; Øvrelid, Lilja; Smedt, Koenraad De; Moe, Hallvard

AI and Ethics , 2021.

Abstract | Links | BibTeX

Towards Responsible Media Recommendation Journal Article

Elahi, Mehdi; Jannach, Dietmar; Skjærven, Lars; Knudsen, Erik; Sjøvaag, Helle; Tolonen, Kristian; Holmstad, Øyvind; Pipkin, Igor; Throndsen, Eivind; Stenbom, Agnes; Fiskerud, Eivind; Oesch, Adrian; Vredenberg, Loek; Trattner, Christoph

AI and Ethics , 2021.

Links | BibTeX

The Cholesterol Factor: Balancing Accuracy and Health in Recipe Recommendation Through a Nutrient-Specific Metric. Proceeding Forthcoming

Starke, Alain; Trattner, Christoph; Bakken, H; Johannessen, M; Solberg, V



Recommending Videos in Cold Start With Automatic Visual Tags Proceeding

Elahi, Mehdi; Moghaddam, Farshad B; Hosseini, Reza; Rimaz, Mohammad Hossein; Ioini, Nabil El; Tkalcic, Marko; Trattner, Christoph; Tillo, Tammam

29th Conference on User Modeling, Adaptation and Personalization conference (UMAP 2021) Utrecht, the Netherlands, 2021.

Abstract | Links | BibTeX

Exploring the Effects of Natural Language Justifications in Food Recommender Systems Proceeding

Musto, Cataldo; Starke, Alain D; Trattner, Christoph; Rapp, Amon; Semeraro, Giovanni

Association for Computing Machinery, New York, NY United States, 2021, ISBN: 978-1-4503-8366-0.

Links | BibTeX

Nudging Healthy Choices in Food Search Through Visual Attractiveness Journal Article

Starke, Alain D; Willemsen, Martijn C; Trattner, Christoph

(April 2021), pp. 1-18, 2021.

Abstract | Links | BibTeX

Exploring Multi-List User Interfaces for Similar-Item Recommendations Conference

Jannach, Dietmar; Jesse, Mathias; Jugovac, Michael; Trattner, Christoph

29th ACM International Conference on User Modeling, Adaptation and Personalization (UMAP '21) 2021.

Abstract | Links | BibTeX


Learning to Recommend Similar Items from Human Judgements Journal Article

Trattner, Christoph; Jannach, Dietmar

User Modeling and User-Adapted Interaction Journal, pp. 1-50, 2019, (Pre SFI).

Abstract | Links | BibTeX


Towards a big data platform for news angles Workshop

Ocaña, Marc Gallofré; Nyre, Lars; Opdahl, Andreas Lothe; Tessem, Bjørnar; Trattner, Christoph; Veres, Csaba

Norwegian Big Data Symposium 2018, 2018, (Pre SFI).

Abstract | Links | BibTeX

The Roadmap to User-Controllable Social Exploratory Search Journal Article

Sciascio, Cecilia Di; Brusilovsky, Peter; Trattner, Christoph; Veas, Eduardo

ACM Transactions on Interactive Intelligent Systems, pp. 1-37, 2018, (Pre SFI).

Abstract | Links | BibTeX


Exploiting Food Choice Biases for Healthier Recipe Recommendation Conference

Elsweiler, David; Trattner, Christoph; Harvey, Morgan

ACM SIGIR Conference 2017, (Pre SFI).

Abstract | Links | BibTeX

Visually-Aware Video Recommendation in the Cold Start Conference

Elahi, Mehdi; Hosseini, Reza; Rimaz, Mohammad H; Moghaddam, Farshad B; Trattner, Christoph

Proccedings of theACM Hypertext 2020 2017, (Pre SFI).

Abstract | Links | BibTeX


VizRec: Recommending Personalized Visualizations Journal Article

Mutlu, Belgin; Veas, Eduardo; Trattner, Christoph

ACM Transactions on Interactive Intelligent Systems (TiiS), 6 (4), pp. 1-40, 2016, (Pre SFI).

Abstract | Links | BibTeX