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- W4382618467 abstract "Collaborative filtering (CF) is a widely employed technique that predicts user preferences based on past interactions. Negative sampling plays a vital role in training CF-based models with implicit feedback. In this paper, we propose a novel perspective based on the sampling area to revisit existing sampling methods. We point out that current sampling methods mainly focus on Point-wise or Line-wise sampling, lacking flexibility and leaving a significant portion of the hard sampling area un-explored. To address this limitation, we propose Dimension Independent Mixup for Hard Negative Sampling (DINS), which is the first Area-wise sampling method for training CF-based models. DINS comprises three modules: Hard Boundary Definition, Dimension Independent Mixup, and Multi-hop Pooling. Experiments with real-world datasets on both matrix factorization and graph-based models demonstrate that DINS outperforms other negative sampling methods, establishing its effectiveness and superiority. Our work contributes a new perspective, introduces Area-wise sampling, and presents DINS as a novel approach that achieves state-of-the-art performance for negative sampling. Our implementations are available in PyTorch." @default.
- W4382618467 created "2023-06-30" @default.
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- W4382618467 date "2023-06-28" @default.
- W4382618467 modified "2023-09-24" @default.
- W4382618467 title "Dimension Independent Mixup for Hard Negative Sample in Collaborative Filtering" @default.
- W4382618467 doi "https://doi.org/10.1145/3583780.3614845" @default.
- W4382618467 hasPublicationYear "2023" @default.
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