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arXiv 2406.01233cs.IRcs.CL
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多词术语嵌入提升词汇化商品检索

Multi-word Term Embeddings Improve Lexical Product Retrieval

Research Center of Wildberries SK LLC(Wildberries SK有限责任公司研究中心);University of Geneva(日内瓦大学);University of Lausanne(洛桑大学)

Viktor Shcherbakov, Fedor Krasnov

AI总结:

本文提出H1嵌入模型,通过将多词商品术语作为单词元处理来构建语义丰富的词汇表,在混合商品搜索系统中提升了检索精确率且不影响召回率,并在WANDS数据集上超越其他SoTA模型。

摘要:

商品搜索与文档、互联网资源或职位的搜索截然不同,因此需要开发专门的搜索系统。本文介绍了H1 embedding模型,该模型专为电商平台商品描述的离线术语索引而设计。在一个结合了词汇化商品检索方法和基于语义嵌入方法优势的混合商品搜索系统框架内,将该模型与其他最先进的(SoTA)嵌入模型进行了比较。我们提出了一种为搜索索引构建语义丰富术语词汇的方法。与其他生产级语义模型相比,H1模型结合所提方法,因其能够将多词商品术语作为一个词元处理而脱颖而出。例如,对于搜索查询“new balance shoes”和“gloria jeans kids wear”,品牌实体将被表示为一个词元——“new balance”和“gloria jeans”。这使得系统在不影响召回率的情况下提高了精确率。在公开数据集WANDS上,采用所提模型的混合搜索系统得分为mAP@12 = 56.1%和R@1k = 86.6%,击败了其他SoTA同类模型。

英文摘要:

Product search is uniquely different from search for documents, Internet resources or vacancies, therefore it requires the development of specialized search systems. The present work describes the H1 embdedding model, designed for an offline term indexing of product descriptions at e-commerce platforms. The model is compared to other state-of-the-art (SoTA) embedding models within a framework of hybrid product search system that incorporates the advantages of lexical methods for product retrieval and semantic embedding-based methods. We propose an approach to building semantically rich term vocabularies for search indexes. Compared to other production semantic models, H1 paired with the proposed approach stands out due to its ability to process multi-word product terms as one token. As an example, for search queries "new balance shoes", "gloria jeans kids wear" brand entity will be represented as one token - "new balance", "gloria jeans". This results in an increased precision of the system without affecting the recall. The hybrid search system with proposed model scores mAP@12 = 56.1% and R@1k = 86.6% on the WANDS public dataset, beating other SoTA analogues.

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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