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Yuwen Liu

5 accepted papers

2026

BAMFair: Barycenter Aligned Mediation for Fairness Across Multiple Sensitive Attributes

IJCAI 2026

Achieving fairness in machine learning models while maintaining high accuracy is an important but complex task, especially when handling multiple sensitive attributes. Traditional fairness methods often struggle to eliminate bias within subgroups divided by sensitive attributes. Several key challeng

Cited by 0Scholar
2025

DR-VAE: Debiased and Representation-enhanced Variational Autoencoder for Collaborative Recommendation

AAAI 2025technical

Recommender Systems (RSs) are widely applied for navigating information, and Collaborative Filtering (CF) is one of prominent recommendation techniques due to the advantages of domain independence and easy interpretation. Among the numerous CF methods, Variational Autoencoders (VAE), benefiting from…

2025

Variational Graph Auto-Encoder Driven Graph Enhancement for Sequential Recommendation

IJCAI 2025

Recommender systems play a critical role in many applications by providing personalized recommendations based on user interactions. However, it remains a major challenge to capture complex sequential patterns and address noise in user interaction data. While advanced neural networks have enhanced se

Cited by 0SourcePDFScholar
2024

Counterfactual User Sequence Synthesis Augmented with Continuous Time Dynamic Preference Modeling for Sequential POI Recommendation

IJCAI 2024poster

With the proliferation of Location-based Social Networks (LBSNs), user check-in data at Points-of-Interest (POIs) has surged, offering rich insights into user preferences. However, sequential POI recommendation systems always face two pivotal challenges. A challenge lies in the difficulty of modelin…

Cited by 11SourcePDFScholar