Yueqing Xuan presents full paper at CIKM conference in South Korea
Author ADM+S Centre
Date 12 January 2026
ADM+S researcher and PhD student at RMIT, Yueqing Xuan, visited South Korea in November 2025 to present at The 34th ACM International Conference on Information and Knowledge Management (CIKM).
CIKM provides an international forum for discussion on research information and knowledge management, as well as recent advances on data and knowledge bases. The goal of the conference is to shape future directions of research by encouraging high quality, applied and theoretical research findings.
Yueqing presented her full research paper, co-authored with ADM+S researchers Kacper Sokol, Mark Sanderson and Jeffrey Chan, Evaluating and Addressing Fairness Across User Groups in Negative Sampling for Recommender Systems.
“My presented work systematically evaluates state-of-the-art recommender systems with respect to user-side fairness, specifically focusing on whether these systems provide equitable recommendation quality to users with different activity levels,” said Yueqing.
“The motivation for this work is that users with low activity levels often include individuals with limited digital literacy or access to digital services, such as elderly users or those from disadvantaged socio-economic backgrounds”
“Ensuring fair recommendation quality for these users is essential for inclusive and responsible digital systems.” She said.
The findings demonstrate that recommender systems consistently provide better accuracy for highly active users compared to inactive users. The paper calls for the development of more equitable training and sampling strategies to address fairness concerns in recommender systems.
During the conference, Yueqing also served as a session chair, which involved moderating presentations, managing time and facilitating discussion. She engaged with other PhD students and academics working in fairness in recommender systems.
“Serving as a session chair was a valuable and new experience, providing insight into how to effectively moderate academic discussions, ask constructive questions, and facilitate meaningful exchanges among presenters and the audience.”
Yueqing attended several industry sessions at the conference, and highlighted that she gained a better understanding of how real-world systems operate at large scales and involve complexities that are often simplified or abstracted in academic research.
“An important lesson I learned is the need to ground research problems in real-world settings and ensure practical relevance,” Yueqing said.
Yueqing explained that after discussions with fellow researchers, there was a strong foundation for future collaboration and for integrating different methodologies. She plans to maintain contact with these researchers to explore further opportunities.
This research trip was funded by the ADM+S RMIT node and ADM+S HDR funding.
