Enhancing Recommendation Systems with GNNs and Addressing Over-Smoothing

Fuente: arXiv
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Autores principales: Liu, Wenyi, Zhang, Ziqi, Li, Xinshi, Hu, Jiacheng, Luo, Yuanshuai, Du, Junliang
Formato: Preprint
Publicado: 2024
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author Liu, Wenyi
Zhang, Ziqi
Li, Xinshi
Hu, Jiacheng
Luo, Yuanshuai
Du, Junliang
author_facet Liu, Wenyi
Zhang, Ziqi
Li, Xinshi
Hu, Jiacheng
Luo, Yuanshuai
Du, Junliang
contents This paper addresses key challenges in enhancing recommendation systems by leveraging Graph Neural Networks (GNNs) and addressing inherent limitations such as over-smoothing, which reduces model effectiveness as network hierarchy deepens. The proposed approach introduces three GNN-based recommendation models, specifically designed to mitigate over-smoothing through innovative mechanisms like residual connections and identity mapping within the aggregation propagation process. These modifications enable more effective information flow across layers, preserving essential user-item interaction details to improve recommendation accuracy. Additionally, the study emphasizes the critical need for interpretability in recommendation systems, aiming to provide transparent and justifiable suggestions tailored to dynamic user preferences. By integrating collaborative filtering with GNN architectures, the proposed models not only enhance predictive accuracy but also align recommendations more closely with individual behaviors, adapting to nuanced shifts in user interests. This work advances the field by tackling both technical and user-centric challenges, contributing to the development of robust and explainable recommendation systems capable of managing the complexity and scale of modern online environments.
format Preprint
id arxiv_https___arxiv_org_abs_2412_03097
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Enhancing Recommendation Systems with GNNs and Addressing Over-Smoothing
Liu, Wenyi
Zhang, Ziqi
Li, Xinshi
Hu, Jiacheng
Luo, Yuanshuai
Du, Junliang
Information Retrieval
Machine Learning
This paper addresses key challenges in enhancing recommendation systems by leveraging Graph Neural Networks (GNNs) and addressing inherent limitations such as over-smoothing, which reduces model effectiveness as network hierarchy deepens. The proposed approach introduces three GNN-based recommendation models, specifically designed to mitigate over-smoothing through innovative mechanisms like residual connections and identity mapping within the aggregation propagation process. These modifications enable more effective information flow across layers, preserving essential user-item interaction details to improve recommendation accuracy. Additionally, the study emphasizes the critical need for interpretability in recommendation systems, aiming to provide transparent and justifiable suggestions tailored to dynamic user preferences. By integrating collaborative filtering with GNN architectures, the proposed models not only enhance predictive accuracy but also align recommendations more closely with individual behaviors, adapting to nuanced shifts in user interests. This work advances the field by tackling both technical and user-centric challenges, contributing to the development of robust and explainable recommendation systems capable of managing the complexity and scale of modern online environments.
title Enhancing Recommendation Systems with GNNs and Addressing Over-Smoothing
topic Information Retrieval
Machine Learning
url https://arxiv.org/abs/2412.03097