arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.01894stat.MLcs.IRcs.LG
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一种适用于所有推荐系统的有效流形密度估计器

An efficient manifold density estimator for all recommendation systems

Synerise;Warsaw University of Technology(华沙理工大学)

Jacek Dąbrowski, Barbara Rychalska, Michał Daniluk, Dominika Basaj, Konrad Gołuchowski, Piotr Babel, Andrzej Michałowski, Adam Jakubowski

摘要:

许多无监督表示学习方法都属于相似性学习模型的范畴。虽然针对不同类型的数据存在各种特定于模态的方法,但许多方法的核心属性是相似输入的表示在某些相似性函数下是接近的。我们提出了EMDE(高效流形密度估计)-一个框架,利用任意向量表示与局部相似性的属性,简洁地表示光滑的概率密度黎曼流形。我们的近似表示具有固定大小和具有简单的加法组合性的理想特性,因此特别适合用神经网络处理-作为输入和输出格式,产生有效的条件估计。我们推广和重新制定的问题,多模式的建议,有条件的,加权密度估计流形。我们的方法允许包含多种交互类型,数据的形式以及任何推荐设置的交互强度。将EMDE应用于top-k和基于会话的推荐设置,我们在单模态和多模态设置中的多个开放数据集上建立了新的最先进的结果。

英文摘要:

Many unsupervised representation learning methods belong to the class of similarity learning models. While various modality-specific approaches exist for different types of data, a core property of many methods is that representations of similar inputs are close under some similarity function. We propose EMDE (Efficient Manifold Density Estimator) - a framework utilizing arbitrary vector representations with the property of local similarity to succinctly represent smooth probability densities on Riemannian manifolds. Our approximate representation has the desirable properties of being fixed-size and having simple additive compositionality, thus being especially amenable to treatment with neural networks - both as input and output format, producing efficient conditional estimators. We generalize and reformulate the problem of multi-modal recommendations as conditional, weighted density estimation on manifolds. Our approach allows for trivial inclusion of multiple interaction types, modalities of data as well as interaction strengths for any recommendation setting. Applying EMDE to both top-k and session-based recommendation settings, we establish new state-of-the-art results on multiple open datasets in both uni-modal and multi-modal settings.

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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