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Collaborative Filtering Based on Diffusion Models: Unveiling the Potential of High-Order Connectivity
April 23, 2024, 4:43 a.m. | Yu Hou, Jin-Duk Park, Won-Yong Shin
cs.LG updates on arXiv.org arxiv.org
Abstract: A recent study has shown that diffusion models are well-suited for modeling the generative process of user-item interactions in recommender systems due to their denoising nature. However, existing diffusion model-based recommender systems do not explicitly leverage high-order connectivities that contain crucial collaborative signals for accurate recommendations. Addressing this gap, we propose CF-Diff, a new diffusion model-based collaborative filtering (CF) method, which is capable of making full use of collaborative signals along with multi-hop neighbors. Specifically, …
abstract arxiv collaborative collaborative filtering connectivity cs.ai cs.ir cs.it cs.lg cs.si denoising diffusion diffusion model diffusion models filtering generative however interactions math.it modeling nature process recommender systems study systems type
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