Shanshan Wan

A Recommendation Approach Based on Heterogeneous Network and Dynamic Knowledge Graph

2024 · International Journal of Intelligent Systems

Besides data sparsity and cold start, recommender systems often face the problems of selection bias and exposure bias. These problems influence the accuracy of recommendations and easily lead to overrecommendations. This paper proposes a recommendation …

A Structure-Aware Fair Recommendation Approach Based on Counterfactual Dynamic Hypergraphs

2025 · ACM Transactions on Intelligent Systems and Technology

Unfair recommendations stem from user-sensitive attributes and information transmission biases. Graph-structured data can provide more balanced information for fair recommendations by capturing multidimensional user–item interactions. However, graph-based fair recommendation still faces some challenges: Traditional graphs …