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International Journal of Advanced Computer Science and Applications(IJACSA), Volume 15 Issue 5, 2024.
Abstract: Graph Neural Networks (GNNs) have emerged as a state-of-the-art approach in building modern Recommender Systems (RS). By leveraging the complex relationships among items, users, and their attributes, which can be represented as a Knowledge Graph (KG), these models can explore implicit semantic sub-structures within graphs, thereby enhancing the learning of user and item representations. In this paper, we propose an end-to-end architectural framework for developing recommendation models based on GNNs and KGs, namely Hy-bridGCN. Our proposed methodologies aim to address three main challenges: (1) making graph-based RS scalable on large-scale datasets, (2) constructing domain-specific KGs from unstructured data sources, and (3) tackling the issue of incomplete knowledge in constructed KGs. To achieve these goals, we design a multi-stage integrated procedure, ranging from user segmentation and LLM-supported KG construction process to interconnectedly propagating between the KG and the Interaction Graph (IG). Our experimental results on a telecom e-commerce domain dataset demonstrate that our approach not only makes existing GNN-based recommender baselines feasible on large-scale data but also achieves comparative performance with the HybridGCN core.
Dang-Anh-Khoa Nguyen, Sang Kha and Thanh-Van Le, “HybridGCN: An Integrative Model for Scalable Recommender Systems with Knowledge Graph and Graph Neural Networks” International Journal of Advanced Computer Science and Applications(IJACSA), 15(5), 2024. http://dx.doi.org/10.14569/IJACSA.2024.01505134
@article{Nguyen2024,
title = {HybridGCN: An Integrative Model for Scalable Recommender Systems with Knowledge Graph and Graph Neural Networks},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2024.01505134},
url = {http://dx.doi.org/10.14569/IJACSA.2024.01505134},
year = {2024},
publisher = {The Science and Information Organization},
volume = {15},
number = {5},
author = {Dang-Anh-Khoa Nguyen and Sang Kha and Thanh-Van Le}
}
Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.