arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.02667cs.CL
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基于动态异构知识图谱表示的个性化实体解析

Personalized Entity Resolution with Dynamic Heterogeneous Knowledge Graph Representations

Amazon Alexa AI(亚马逊Alexa AI)

Ying Lin, Han Wang, Jiangning Chen, Tong Wang, Yue Liu, Heng Ji, Yang Liu, Premkumar Natarajan

摘要:

虚拟助手的日益普及为实体解析提出了新的挑战,这是一项将文本中的提及与知识库中的引用实体联系起来的任务。具体地,在购物领域,顾客倾向于使用隐含的话语(例如,“有机牛奶”)而不是明确的名称,导致大量的候选产品。同时,对于相同的查询,不同的客户可能期望不同的结果。例如,在“将牛奶添加到我的购物车”中,客户可能指的是某种有机产品,而一些客户可能希望重新订购他们经常购买的产品。为了解决这些问题,我们提出了一个新的框架,利用个性化的功能,以提高产品排名的准确性。我们首先从客户购买历史和产品知识图谱构建跨源异构知识图谱,共同学习客户和产品嵌入。在此之后,我们将产品,客户和历史表示纳入神经重排序模型,以预测哪个候选人最有可能为特定客户购买。实验表明,与最先进的产品搜索模型相比,我们的模型大大提高了排名靠前的候选人的准确性24.6%。

英文摘要:

The growing popularity of Virtual Assistants poses new challenges for Entity Resolution, the task of linking mentions in text to their referent entities in a knowledge base. Specifically, in the shopping domain, customers tend to use implicit utterances (e.g., "organic milk") rather than explicit names, leading to a large number of candidate products. Meanwhile, for the same query, different customers may expect different results. For example, with "add milk to my cart", a customer may refer to a certain organic product, while some customers may want to re-order products they regularly purchase. To address these issues, we propose a new framework that leverages personalized features to improve the accuracy of product ranking. We first build a cross-source heterogeneous knowledge graph from customer purchase history and product knowledge graph to jointly learn customer and product embeddings. After that, we incorporate product, customer, and history representations into a neural reranking model to predict which candidate is most likely to be purchased for a specific customer. Experiments show that our model substantially improves the accuracy of the top ranked candidates by 24.6% compared to the state-of-the-art product search model.

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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