arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.08936cs.IR
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基于transformer的个性化产品搜索嵌入模型

A Transformer-based Embedding Model for Personalized Product Search

Keping Bi, Qingyao Ai, W. Bruce Croft

摘要:

商品搜索是人们在电子商务平台上浏览和购买商品的重要方式。虽然客户倾向于根据个人品味和偏好做出选择,但对商业产品搜索日志的分析表明,个性化并不总是提高产品搜索质量。然而,大多数现有的产品搜索技术在搜索会话中进行无差别的个性化。他们要么用一个固定的系数来控制个性化的影响,要么用一个注意力机制让个性化一直起作用。唯一值得注意的例外是最近提出的零注意模型(ZAM),它可以通过允许查询关注零向量来自适应地调整个性化的效果。尽管如此,在ZAM中,个性化最多可以与查询一样重要,并且项目的表示在整个集合中是静态的,而不管在用户的历史购买中共同出现的项目。意识到这些局限性,我们提出了一个基于transformer的嵌入模型(TEM)的个性化产品搜索,它可以动态地控制个性化的影响,通过编码的查询序列和用户的购买历史与Transformer架构。个性化可以在必要时产生主导影响,并且在计算注意力权重时可以考虑项目之间的交互。实验结果表明,TEM比国家的最先进的个性化产品检索模型显着。

英文摘要:

Product search is an important way for people to browse and purchase items on E-commerce platforms. While customers tend to make choices based on their personal tastes and preferences, analysis of commercial product search logs has shown that personalization does not always improve product search quality. Most existing product search techniques, however, conduct undifferentiated personalization across search sessions. They either use a fixed coefficient to control the influence of personalization or let personalization take effect all the time with an attention mechanism. The only notable exception is the recently proposed zero-attention model (ZAM) that can adaptively adjust the effect of personalization by allowing the query to attend to a zero vector. Nonetheless, in ZAM, personalization can act at most as equally important as the query and the representations of items are static across the collection regardless of the items co-occurring in the user's historical purchases. Aware of these limitations, we propose a transformer-based embedding model (TEM) for personalized product search, which could dynamically control the influence of personalization by encoding the sequence of query and user's purchase history with a transformer architecture. Personalization could have a dominant impact when necessary and interactions between items can be taken into consideration when computing attention weights. Experimental results show that TEM outperforms state-of-the-art personalization product retrieval models significantly.

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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