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arXiv 1704.03037cs.LG
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基于结构因子分解机的多视图多向数据学习

Learning from Multi-View Multi-Way Data via Structural Factorization Machines

University of Illinois at Chicago(伊利诺伊大学芝加哥分校);Cornell University(康奈尔大学);Purdue University(普渡大学);Tsinghua University(清华大学)

Chun-Ta Lu, Lifang He, Hao Ding, Bokai Cao, Philip S. Yu

摘要:

实体之间的真实世界关系通常可以通过不同的视角/视图来观察和确定。例如,由用户做出的关于是否采用物品的决定依赖于多个方面,诸如决定的上下文信息、物品的属性、用户的简档以及由其他用户给出的评论。不同的视图可以展示实体之间的多路交互,并提供补充信息。在本文中,我们介绍了一种基于多张量的方法,可以在通用预测模型中保留多视图数据的底层结构。具体来说,我们提出了结构因子分解机(SFM),它学习多视图张量共享的公共潜在空间,并自动调整预测模型中每个视图的重要性。此外,SFM的复杂性是线性的参数的数量,这使得SFM适合于大规模的问题。在真实数据集上的大量实验表明,所提出的SFM在预测精度和计算成本方面优于几种最先进的方法。

英文摘要:

Real-world relations among entities can often be observed and determined by different perspectives/views. For example, the decision made by a user on whether to adopt an item relies on multiple aspects such as the contextual information of the decision, the item's attributes, the user's profile and the reviews given by other users. Different views may exhibit multi-way interactions among entities and provide complementary information. In this paper, we introduce a multi-tensor-based approach that can preserve the underlying structure of multi-view data in a generic predictive model. Specifically, we propose structural factorization machines (SFMs) that learn the common latent spaces shared by multi-view tensors and automatically adjust the importance of each view in the predictive model. Furthermore, the complexity of SFMs is linear in the number of parameters, which make SFMs suitable to large-scale problems. Extensive experiments on real-world datasets demonstrate that the proposed SFMs outperform several state-of-the-art methods in terms of prediction accuracy and computational cost.

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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