Research on Personalized Financial Product Recommendation by Integrating Large Language Models and Graph Neural Networks

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Main Authors: Zhao, Yushang, Peng, Yike, Li, Dannier, Yang, Yuxin, Zhou, Chengrui, Dong, Jing
Format: Preprint
Published: 2025
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author Zhao, Yushang
Peng, Yike
Li, Dannier
Yang, Yuxin
Zhou, Chengrui
Dong, Jing
author_facet Zhao, Yushang
Peng, Yike
Li, Dannier
Yang, Yuxin
Zhou, Chengrui
Dong, Jing
contents With the rapid growth of fintech, personalized financial product recommendations have become increasingly important. Traditional methods like collaborative filtering or content-based models often fail to capture users' latent preferences and complex relationships. We propose a hybrid framework integrating large language models (LLMs) and graph neural networks (GNNs). A pre-trained LLM encodes text data (e.g., user reviews) into rich feature vectors, while a heterogeneous user-product graph models interactions and social ties. Through a tailored message-passing mechanism, text and graph information are fused within the GNN to jointly optimize embeddings. Experiments on public and real-world financial datasets show our model outperforms standalone LLM or GNN in accuracy, recall, and NDCG, with strong interpretability. This work offers new insights for personalized financial recommendations and cross-modal fusion in broader recommendation tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2506_05873
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Research on Personalized Financial Product Recommendation by Integrating Large Language Models and Graph Neural Networks
Zhao, Yushang
Peng, Yike
Li, Dannier
Yang, Yuxin
Zhou, Chengrui
Dong, Jing
Information Retrieval
Artificial Intelligence
With the rapid growth of fintech, personalized financial product recommendations have become increasingly important. Traditional methods like collaborative filtering or content-based models often fail to capture users' latent preferences and complex relationships. We propose a hybrid framework integrating large language models (LLMs) and graph neural networks (GNNs). A pre-trained LLM encodes text data (e.g., user reviews) into rich feature vectors, while a heterogeneous user-product graph models interactions and social ties. Through a tailored message-passing mechanism, text and graph information are fused within the GNN to jointly optimize embeddings. Experiments on public and real-world financial datasets show our model outperforms standalone LLM or GNN in accuracy, recall, and NDCG, with strong interpretability. This work offers new insights for personalized financial recommendations and cross-modal fusion in broader recommendation tasks.
title Research on Personalized Financial Product Recommendation by Integrating Large Language Models and Graph Neural Networks
topic Information Retrieval
Artificial Intelligence
url https://arxiv.org/abs/2506.05873