arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.02065cs.IR
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利用隐式反馈进行上下文感知产品搜索

Leverage Implicit Feedback for Context-aware Product Search

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

摘要:

产品搜索是网上购物的重要入口。与网络搜索相比,产品搜索中检索到的结果不仅需要相关,而且还应该满足客户的偏好,以吸引购买。以前的工作已经显示了购买历史在个性化产品搜索中的功效。然而,很少或没有购买历史的客户不会从个性化产品搜索中受益。此外,从客户的购买历史中提取的偏好通常是长期的,并不总是与她的短期利益一致。因此,在本文中,我们利用查询会话中的点击,作为隐式反馈,来表示用户的隐藏意图,这进一步作为重新排序后续结果页面的查询的基础。在推荐任务中,利用隐式反馈对用户偏好进行建模已经得到了广泛的研究。然而,很少有研究建模用户的短期兴趣在产品搜索。我们研究短期上下文是否有助于促进用户的理想项目在以下结果页面的查询。此外,我们提出了一个端到端的上下文感知嵌入模型,可以捕获长期和短期的上下文依赖关系。我们在商业产品搜索引擎的搜索日志中收集的数据集上的实验结果表明,与长期和无上下文相比,短期上下文导致更好的性能。我们的研究结果也表明,我们提出的模型是更有效的基于词的上下文感知模型。

英文摘要:

Product search serves as an important entry point for online shopping. In contrast to web search, the retrieved results in product search not only need to be relevant but also should satisfy customers' preferences in order to elicit purchases. Previous work has shown the efficacy of purchase history in personalized product search. However, customers with little or no purchase history do not benefit from personalized product search. Furthermore, preferences extracted from a customer's purchase history are usually long-term and may not always align with her short-term interests. Hence, in this paper, we leverage clicks within a query session, as implicit feedback, to represent users' hidden intents, which further act as the basis for re-ranking subsequent result pages for the query. It has been studied extensively to model user preference with implicit feedback in recommendation tasks. However, there has been little research on modeling users' short-term interest in product search. We study whether short-term context could help promote users' ideal item in the following result pages for a query. Furthermore, we propose an end-to-end context-aware embedding model which can capture long-term and short-term context dependencies. Our experimental results on the datasets collected from the search log of a commercial product search engine show that short-term context leads to much better performance compared with long-term and no context. Our results also show that our proposed model is more effective than word-based context-aware 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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