Publications

2025

GreenFoodLens: Sustainability Labels for Food Recommendation. G. Balloccu, L. Boratto, G. Fenu, M. Marras, G. Medda, G. Murgia. In Proceedings of: 19th ACM Conference on Recommender Systems, RecSys 2025. (RecSys 2025) DOI

How Fair is Your Diffusion Recommender Model?. D. Malitesta, G. Medda, E. Purificato, M.Marras, F. Malliaros, L. Boratto. In Proceedings of: 19th ACM Conference on Recommender Systems, RecSys 2025. (RecSys 2025) DOI

Small Data, Big Impact: Navigating Resource Limitations in Point-of-Interest Recommendation for Individuals with Autism. L. Boratto, F. Cena, G. Fenu, M. Marras, N. Mauro, G. Medda. In Proceedings of: 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025. (SIGIR 2025) DOI

2024

GNNUERS: Fairness Explanation in GNNs for Recommendation via Counterfactual Reasoning. L. Boratto, F. Fabbri, G. Fenu, M. Marras, G. Medda. In ACM Transactions of Intelligent Systems and Technology (TIST) DOI

Unlocking {LLM}s: Addressing Scarce Data and Bias Challenges in Mental Health and Therapeutic Counselling V. Kumar, P. S. Rajwat, G. Medda, E. Ntoutsi, D. R. Recupero. In Proceedings of: First International Conference on Natural Language Processing and Artificial Intelligence for Cyber Security, NLPAICS 2024. (NLPAICS 2024) URL

Fair Augmentation for Graph Collaborative Filtering. L. Boratto, F. Fabbri, G. Fenu, M. Marras, G. Medda. In Proceedings of: 18th ACM Conference on Recommender Systems, RecSys 2024. (RecSys 2024) DOI

Robustness in Fairness against Edge-level Perturbations in GNN-based Recommendation. L. Boratto, F. Fabbri, G. Fenu, M. Marras, G. Medda. In Proceedings of: Advances in Information Retrieval - 46th European Conference on IR Research, (ECIR 2024). (ECIR 2024) DOI

2023

Counterfactual Graph Augmentation for Consumer Unfairness Mitigation in Recommender Systems. L. Boratto, F. Fabbri, G. Fenu, M. Marras, G. Medda. In Proceedings of: 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023. (CIKM 2023) DOI

Causal reasoning for algorithmic fairness in voice controlled cyber-physical systems. G. Fenu, M. Marras, G. Medda, G. Meloni. In: Pattern Recognition Letters. (PRLetters) DOI

How Do You Feel? Information Retrieval in Psychotherapy and Fair Ranking Assessment. V. Kumar, G. Medda, D. Reforgiato, D. Riboni, R. Healoui, G. Fenu. In Proceedings of: Advances in Bias and Fairness in Information Retrieval. BIAS 2023. Communications in Computer and Information Science (CCIS). Springer.. (BIAS 2023) DOI

Practical perspectives of consumer fairness in recommendation. L. Boratto, G. Fenu, M. Marras, G. Medda. In: Information Processing & Management. (IPM) DOI

2022

Consumer Fairness in Recommender Systems: Contextualizing Definitions and Mitigations. L. Boratto, G. Fenu, M. Marras, G. Medda. In Proceedings of: Advances in Information Retrieval - 44th European Conference on IR Research, (ECIR 2022). (ECIR 2022) DOI

2021

Fair Voice Biometrics: Impact of Demographic Imbalance on Group Fairness in Speaker Recognition. G. Fenu, M. Marras, G. Medda, G. Meloni. In Proceedings of: Interspeech 2021. (Interspeech 2021) DOI

2020

Improving Fairness in Speaker Recognition. G. Fenu, M. Marras, G. Medda, G. Meloni. In Proceedings of: European Symposium on Software Engineering (ESSE 2020). ACM.. (ESSE 2020) DOI