arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.04031cs.IR
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多页面产品搜索中的上下文依赖性研究

A Study of Context Dependencies in Multi-page Product Search

Keping Bi, Choon Hui Teo, Yesh Dattatreya, Vijai Mohan, W. Bruce Croft

摘要:

在产品搜索中,用户倾向于在多个搜索结果页面(SERP)上浏览结果(例如,查询衣服和鞋子),然后再决定购买哪一项。用户的点击可以被认为是隐式反馈,其指示他们的偏好并用于对后续的SERP进行重新排名。通常涉及相关反馈(RF)技术来处理这样的场景。然而,这些方法是专为文档检索,其中相关性是最重要的标准。相比之下,产品搜索引擎需要检索的项目不仅是相关的,而且在客户的喜好方面令人满意。基于用户购买历史的个性化已被证明是有效的产品搜索。然而,这种方法捕捉用户的长期兴趣,这并不总是与他们的短期兴趣相一致,并且不会使很少或没有购买历史的客户受益。在本文中,我们研究RF技术的基础上,长期和短期的上下文依赖性在多页产品搜索。我们还提出了一个端到端的上下文感知嵌入模型,可以捕获这两种类型的上下文。我们的实验结果表明,短期的上下文导致更好的性能相比,长期和没有上下文。此外,我们提出的模型比最先进的基于单词的RF模型更有效。

英文摘要:

In product search, users tend to browse results on multiple search result pages (SERPs) (e.g., for queries on clothing and shoes) before deciding which item to purchase. Users' clicks can be considered as implicit feedback which indicates their preferences and used to re-rank subsequent SERPs. Relevance feedback (RF) techniques are usually involved to deal with such scenarios. However, these methods are designed for document retrieval, where relevance is the most important criterion. In contrast, product search engines need to retrieve items that are not only relevant but also satisfactory in terms of customers' preferences. Personalization based on users' purchase history has been shown to be effective in product search. However, this method captures users' long-term interest, which does not always align with their short-term interest, and does not benefit customers with little or no purchase history. In this paper, we study RF techniques based on both long-term and short-term context dependencies in multi-page product search. We also propose an end-to-end context-aware embedding model which can capture both types of context. Our experimental results show that short-term context leads to much better performance compared with long-term and no context. Moreover, our proposed model is more effective than state-of-art word-based RF models.

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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