Norwegian Computational Behaviour & AI Lab

On a mission to improve our lives that transforms the way we consume food and media.

Research Focus

News, Polarization & Democracy

Selective exposure, emotional framing, editorial curation, and the role of generative AI in journalism and civic discourse.

Health, Food & Behaviour

Recipe recommenders, cross-country dietary patterns, and AI-based systems to assist healthier and sustainable food choices.

Networks & Digital Platforms

Human–AI interaction dynamics on platforms; predicting ties, participation, diffusion, and collective behaviour with agents in the mix.

Methods & Democratic AI

Large-scale experiments, causal analysis, and human-in-the-loop evaluation of AI-enabled systems anchored in democratic values.

Research Focus Infographic

Key Publications

Healthiness & Environmental Impact of Dinner Recipes thumbnail
Nature Food · 2023
Healthiness & Environmental Impact of Dinner Recipes

Large-scale nutritional & environmental assessment of online dinner recipes across countries.

What Online Data Say About Eating Habits thumbnail
Nature Sustainability · 2019
What Online Data Say About Eating Habits

News & Views outlining a data-science pipeline for studying dietary change via online interactions.

Similarity Functions for News with Human Judgments thumbnail
UMUAI · 2024
Similarity Functions for News with Human Judgments

Across three studies, text-based features—especially body text—align best with human similarity judgments.

Leveraging Professional Ethics for Responsible AI in Journalism thumbnail
CACM · 2024
Leveraging Professional Ethics for Responsible AI in Journalism

Argues for embedding professional journalism ethics as design constraints for responsible, human-centered AI.

GPT as an Adaptive Technology in Climate Change Journalism thumbnail
UMAP · 2025
GPT as an Adaptive Technology in Climate Change Journalism

Explores GPT as an assistive tool in newsroom workflows and implications for audience trust.

Understanding and predicting cross-cultural food preferences with online recipe images thumbnail
Information Processing & Management · 2023
Understanding and predicting cross-cultural food preferences with online recipe images

Visual features from recipe images predict preferences across cultures; transfer works with caveats.

Investigating the Healthiness of Internet-Sourced Recipes thumbnail
WWW · 2017
Investigating the Healthiness of Internet-Sourced Recipes

Evidence that popular web recipes skew unhealthy; signals for improving public health insights.

Exploiting Food Choice Biases for Healthier Recommendations thumbnail
SIGIR · 2017
Exploiting Food Choice Biases for Healthier Recommendations

Models choice biases to nudge recommender systems toward healthier suggestions without hurting relevance.

Picture This: How Image Filters Affect Trust in Online News thumbnail
NIKT · 2025
Picture This: How Image Filters Affect Trust in Online News

Controlled study of common social-media image filters and their effect on perceived news trust.


Selected Projects & Grants


Key Collaborators & Affiliates


Current PhD Students Co-Supervised by the Director


Work With Us

We welcome collaborations with newsrooms, health organisations, and platforms. If you are a prospective student or postdoc interested in computational behaviour & AI , please get in touch!

Contact

Director: Prof. Christoph Trattner — trattner.christoph@gmail.com