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arXiv 2310.20189cs.IR
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LFG:一种用于实时推荐的生成网络

LFG: A Generative Network for Real-Time Recommendation

Junyi Liu

AI总结:

本文针对LFM在实时推荐中需重新训练的不足,提出LFG网络,通过深度神经网络动态生成用户潜在因子,在电影推荐实验中准确率优于传统矩阵分解,有效解决了实时推荐挑战。

摘要:

推荐系统是当今重要的信息技术,结合深度学习的推荐算法已成为该领域的研究热点。LFM(Latent Factor Model,潜在因子模型)通过矩阵分解和梯度下降捕获潜在特征以拟合用户偏好,由此衍生出多种推荐算法,提升了推荐准确率。然而,基于LFM的协同过滤推荐模型缺乏灵活性,在实时推荐方面存在不足,因为当新用户到来时,它们需要重新进行矩阵分解并使用梯度下降重新训练。针对此问题,本文创新性地提出了一种潜在因子生成器(LFG)网络,并以电影推荐为研究主题。LFG通过深度神经网络动态生成用户潜在因子,无需重新分解或重新训练。实验结果表明,LFG推荐模型在推荐准确率上优于传统矩阵分解算法,为LFM在实时推荐中的挑战提供了有效解决方案。

英文摘要:

Recommender systems are essential information technologies today, and recommendation algorithms combined with deep learning have become a research hotspot in this field. The recommendation model known as LFM (Latent Factor Model), which captures latent features through matrix factorization and gradient descent to fit user preferences, has given rise to various recommendation algorithms that bring new improvements in recommendation accuracy. However, collaborative filtering recommendation models based on LFM lack flexibility and has shortcomings for real-time recommendations, as they need to redo the matrix factorization and retrain using gradient descent when new users arrive. In response to this, this paper innovatively proposes a Latent Factor Generator (LFG) network, and set the movie recommendation as research theme. The LFG dynamically generates user latent factors through deep neural networks without the need for re-factorization or retrain. Experimental results indicate that the LFG recommendation model outperforms traditional matrix factorization algorithms in recommendation accuracy, providing an effective solution to the challenges of real-time recommendations with LFM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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