Universitetsparken 1
2100 Copenhagen, Denmark
December 2025
The IR lab will present the following papers at the 48th European Conference on Information Retrieval (ECIR 2026).December 2025
Chengpeng Xia joins the lab as a post-doctoral researcher. He will be working on the topic of photonic computing for neural networks accelarator.October 2025
The paper Decoding Affective States without Labels: Bimodal Image-brain Supervision has been nominated for best paper award at the 27th ACM International Conference on Multimodal Interaction (ICMI 2025). This paper is authored by IR lab members Vadym Gryshchuk, Maria Maistro, Christina Lioma, and Tuukka Ruotsalo. Congratulations!September 2025
Theresia Veronika Rampisela passes her PhD defense. Her thesis is on ''Offline Evaluation Measures of Fairness in Recommender Systems''. The thesis can be accessed here.October 2024
Congratulations to Theresia Veronika Rampisela, Maria Maistro, Tuukka Ruotsalo, and Christina Lioma, who have received a "Women in RecSys Journal Paper of the Year" award at the 18th ACM Conference on Recommender Systems (RecSys 2024). The award is given for their ACM TORS paper Evaluation Measures of Individual Item Fairness for Recommender Systems: A Critical Study.June 2024
Simone Borg Bruun passes her PhD defense. Her thesis is on ''Learning Recommendations from Sparse and Heterogeneous Data''. The thesis can be accessed here.June 2024
Zhan Su passes his PhD defense. His thesis is on ''Information Propagation in Modular Language Modeling and Web Tracking''. The thesis can be accessed here.August 2023
Tenure-track Assistant Professor Maria Maistro has been awarded the 2023 SIGIR Early Career Researcher Award for Diversity, Equity, and Inclusion. Congratulations, Maria!April 2023
Sara Vera Marjanovic joins the lab as a PhD student. She will investigate uncertainty and biases present in language models via an interpretability-centric approach.December 2022
Ervin Dervishaj joins the lab as a PhD student. He will work on recommender systems and user representation learning.November 2022
Pietro Tropeano joins the lab as a PhD student. He will work on language models efficiency and evaluation.September 2021
Lucas Chavez Lima passes his PhD defense. His thesis is on ''Semantic Classification and Evaluation''. The thesis can be accessed here.August 2021
Casper Hansen and Christian Hansen pass their PhD defense. Casper's thesis is on Representation Learning for Efficient and Effective Similarity Search and Recommendation. Christian's thesis is on Sequential Modelling with Applications to Music Recommendation, Fact-Checking, and Speed Reading.January 2021
Qiuchi Li joins the lab as a post-doctoral researcher. He will be working on the JobMatch project: Machine Learning for Personalized and Persuasive Job Recommendation.October 2020
Tuukka Ruotsalo joins the lab as an Associate Professor. Read more about his research here.May 2019
The IR lab got two papers accepted at the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval.May 2019
Researchers from the IR lab competed in the Spotify Sequential Skip Prediction Challenge at WSDM Cup. The task of the competition was to predict if users will skip or listen to the music they are currently streaming. The team won the second place with a deep learning approach described in the following paper: Modelling Sequential Music Track Skips using a Multi-RNN Approach.May 2019
The IR lab got papers accepted at two different WWW workshops:
Universitetsparken 1
2100 Copenhagen, Denmark