arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.05929cs.IRcs.AI
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跨市场产品推荐

Cross-Market Product Recommendation

University of Massachusetts Amherst(马萨诸塞大学阿默斯特分校);University of Amsterdam(阿姆斯特丹大学)

Hamed Bonab, Mohammad Aliannejadi, Ali Vardasbi, Evangelos Kanoulas, James Allan

摘要:

本文研究了在资源相对稀缺的市场中,利用相似的、资源丰富的辅助市场的数据向用户推荐相关产品的问题。我们假设来自一个市场的数据可以用来改善另一个市场的表现。在这一领域只进行了几项研究,部分原因是缺乏公开的实验数据。为此,我们收集并发布了XMarket,这是一个大型数据集,涵盖16个不同产品类别的18个本地市场,包含5250万次用户-商品交互。我们引入并形式化了跨市场产品推荐问题,即,市场适应。我们探索了不同的市场适应技术的启发,最先进的领域适应和元学习方法,并提出了一种新的神经市场适应方法,名为FOREC。我们的模型遵循三个步骤-预训练,分叉和微调-以充分利用来自辅助市场和目标市场的数据。我们进行了大量的实验,研究市场适应对不同市场对的影响。我们提出的方法显示出强大的有效性,与我们分析所选的竞争基线相比,不断提高目标市场的表现。特别是,与NMF基线相比,FOREC在nDCG@10方面平均提高了24%,最高可达50%。我们的分析和实验表明,在这一研究领域的具体未来方向。我们发布我们的数据和代码用于学术目的。

英文摘要:

We study the problem of recommending relevant products to users in relatively resource-scarce markets by leveraging data from similar, richer in resource auxiliary markets. We hypothesize that data from one market can be used to improve performance in another. Only a few studies have been conducted in this area, partly due to the lack of publicly available experimental data. To this end, we collect and release XMarket, a large dataset covering 18 local markets on 16 different product categories, featuring 52.5 million user-item interactions. We introduce and formalize the problem of cross-market product recommendation, i.e., market adaptation. We explore different market-adaptation techniques inspired by state-of-the-art domain-adaptation and meta-learning approaches and propose a novel neural approach for market adaptation, named FOREC. Our model follows a three-step procedure -- pre-training, forking, and fine-tuning -- in order to fully utilize the data from an auxiliary market as well as the target market. We conduct extensive experiments studying the impact of market adaptation on different pairs of markets. Our proposed approach demonstrates robust effectiveness, consistently improving the performance on target markets compared to competitive baselines selected for our analysis. In particular, FOREC improves on average 24% and up to 50% in terms of nDCG@10, compared to the NMF baseline. Our analysis and experiments suggest specific future directions in this research area. We release our data and code for academic purposes.

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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