Personalized bundle list recommendation

J Bai, C Zhou, J Song, X Qu, W An, Z Li… - The World Wide Web …, 2019 - dl.acm.org
J Bai, C Zhou, J Song, X Qu, W An, Z Li, J Gao
The World Wide Web Conference, 2019dl.acm.org
Product bundling, offering a combination of items to customers, is one of the marketing
strategies commonly used in online e-commerce and offline retailers. A high-quality bundle
generalizes frequent items of interest, and diversity across bundles boosts the user-
experience and eventually increases transaction volume. In this paper, we formalize the
personalized bundle list recommendation as a structured prediction problem and propose a
bundle generation network (BGN), which decomposes the problem into quality/diversity …
Product bundling, offering a combination of items to customers, is one of the marketing strategies commonly used in online e-commerce and offline retailers. A high-quality bundle generalizes frequent items of interest, and diversity across bundles boosts the user-experience and eventually increases transaction volume. In this paper, we formalize the personalized bundle list recommendation as a structured prediction problem and propose a bundle generation network (BGN), which decomposes the problem into quality/diversity parts by the determinantal point processes (DPPs). BGN uses a typical encoder-decoder framework with a proposed feature-aware softmax to alleviate the inadequate representation of traditional softmax, and integrates the masked beam search and DPP selection to produce high-quality and diversified bundle list with an appropriate bundle size. We conduct extensive experiments on three public datasets and one industrial dataset, including two generated from co-purchase records and the other two extracted from real-world online bundle services. BGN significantly outperforms the state-of-the-art methods in terms of quality, diversity and response time over all datasets. In particular, BGN improves the precision of the best competitors by 16% on average while maintaining the highest diversity on four datasets, and yields a 3.85x improvement of response time over the best competitors in the bundle list recommendation problem.
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