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arXiv 2211.16366cs.IRcs.LG
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可重用的基于自我注意力的服装推荐系统

Reusable Self-Attention-based Recommender System for Fashion

Zalando SE(Zalando SE(扎兰多))

Marjan Celikik, Jacek Wasilewski, Sahar Mbarek, Pablo Celayes, Pierre Gagliardi, Duy Pham, Nour Karessli, Ana Peleteiro Ramallo

摘要:

大量关于在推荐系统领域中应用自注意模型的实证研究都是基于标准化数据集上计算的离线评估和度量,而没有深入了解这些模型在现实生活中的表现。此外,他们中的许多人不考虑项目和客户元数据等信息,尽管深度学习分类器只有在包含大量异构类型的特征时才能充分发挥其潜力。此外,通常推荐模型被设计为仅很好地服务于单个用例,这增加了建模复杂性和维护成本,并且可能导致不一致的客户体验。在这项工作中,我们提出了一个可重用的基于注意力的时尚推荐算法(AFRA),利用各种交互类型与不同的时尚实体,如项目(例如,衬衫),服装和影响者,以及他们的异质特征。此外,我们利用时间和上下文信息来解决短期和长期客户偏好。我们展示了它在服装推荐用例上的有效性,特别是:1)个性化排名提要; 2)按风格推荐服装; 3)相似项目推荐和4)由最近的客户行为启发的会话推荐。我们提出了离线和在线实验结果,证明了客户保留和参与的实质性改善。

英文摘要:

A large number of empirical studies on applying self-attention models in the domain of recommender systems are based on offline evaluation and metrics computed on standardized datasets, without insights on how these models perform in real life scenarios. Moreover, many of them do not consider information such as item and customer metadata, although deep-learning recommenders live up to their full potential only when numerous features of heterogeneous types are included. Also, typically recommendation models are designed to serve well only a single use case, which increases modeling complexity and maintenance costs, and may lead to inconsistent customer experience. In this work, we present a reusable Attention-based Fashion Recommendation Algorithm (AFRA), that utilizes various interaction types with different fashion entities such as items (e.g., shirt), outfits and influencers, and their heterogeneous features. Moreover, we leverage temporal and contextual information to address both short and long-term customer preferences. We show its effectiveness on outfit recommendation use cases, in particular: 1) personalized ranked feed; 2) outfit recommendations by style; 3) similar item recommendation and 4) in-session recommendations inspired by most recent customer actions. We present both offline and online experimental results demonstrating substantial improvements in customer retention and engagement.

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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