Explainable Graph Neural Network Recommenders; Challenges and Opportunities

Amir Reza Mohammadi

Abstract: Graph Neural Networks (GNNs) have demonstrated significant potential in recommendation tasks by effectively capturing intricate connections among users, items, and their associated features. Given the escalating demand for interpretability, current research endeavors in the domain of GNNs for Recommender Systems (RecSys) necessitate the development of explainer methodologies to elucidate the decision-making process underlying GNN-based recommendations. In this work, we aim to present our research focused on techniques to extend beyond the existing approaches for addressing interpretability in GNN-based RecSys.