TL;DR
This paper introduces a novel neural approach called FOREC for cross-market product recommendation, leveraging data from resource-rich auxiliary markets to improve recommendations in resource-scarce target markets, demonstrating significant performance gains.
Contribution
The paper formalizes the market adaptation problem, introduces the FOREC neural model, and provides a large dataset for cross-market recommendation research.
Findings
FOREC improves nDCG@10 by up to 50% over NMF baseline.
Market adaptation techniques significantly enhance recommendation performance.
The dataset XMarket covers 18 markets with 52.5 million interactions.
Abstract
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 --…
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