arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.06156cs.IRcs.LG
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eBay上基于嵌入的个性化电子商业推荐

Personalized Embedding-based e-Commerce Recommendations at eBay

eBay Inc.(易趣公司)

Tian Wang, Yuri M. Brovman, Sriganesh Madhvanath

摘要:

推荐系统是电子商业市场的重要组成部分,帮助消费者浏览大量库存,找到他们需要或喜欢的东西。在本文中,我们提出了一种方法来生成个性化的项目推荐在电子商业市场通过学习嵌入项目和用户在同一向量空间。为了缓解大型市场中存在的相当大的冷启动问题,分别使用内容特征和多模态现场用户活动来计算项目和用户嵌入。数据消融被纳入离线模型训练过程,以提高生产系统的鲁棒性。在使用从eBay流量收集的数据集进行离线评估时,我们的方法能够改进Recall@k度量,而不是Recently-Viewed-Item(RVI)方法。这种方法来生成个性化的建议已推出,以服务于生产流量,相应的可扩展的工程架构也提出了。初步的A/B测试结果表明,与目前生产中的个性化推荐模块相比,该方法将表面率提高了$\sim$ 6\%,为90\%的列表页面印象生成推荐。

英文摘要:

Recommender systems are an essential component of e-commerce marketplaces, helping consumers navigate massive amounts of inventory and find what they need or love. In this paper, we present an approach for generating personalized item recommendations in an e-commerce marketplace by learning to embed items and users in the same vector space. In order to alleviate the considerable cold-start problem present in large marketplaces, item and user embeddings are computed using content features and multi-modal onsite user activity respectively. Data ablation is incorporated into the offline model training process to improve the robustness of the production system. In offline evaluation using a dataset collected from eBay traffic, our approach was able to improve the Recall@k metric over the Recently-Viewed-Item (RVI) method. This approach to generating personalized recommendations has been launched to serve production traffic, and the corresponding scalable engineering architecture is also presented. Initial A/B test results show that compared to the current personalized recommendation module in production, the proposed method increases the surface rate by $\sim$6\% to generate recommendations for 90\% of listing page impressions.

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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