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arXiv 1802.06159cs.IR
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基于语义相似度的Ad Hoc表检索

Ad Hoc Table Retrieval using Semantic Similarity

Shuo Zhang, Krisztian Balog

摘要:

我们介绍和解决问题的特设表检索:回答一个关键字查询的排名表。这个任务不仅本身很有趣,而且还被用作许多其他基于表的信息访问场景(如表完成或表挖掘)的核心组件。这项工作的主要新贡献是一种方法,用于执行查询和表之间的语义匹配。具体来说,我们(i)表示查询和表在多个语义空间(离散稀疏和连续密集向量表示)和(ii)引入各种相似性的措施,以匹配这些语义表示。我们考虑所有可能的语义表示和相似性度量的组合,并将其用作监督学习模型中的特征。使用基于维基百科表格的专用测试集合,我们展示了在最先进的基线上的显着和实质性的改进。

英文摘要:

We introduce and address the problem of ad hoc table retrieval: answering a keyword query with a ranked list of tables. This task is not only interesting on its own account, but is also being used as a core component in many other table-based information access scenarios, such as table completion or table mining. The main novel contribution of this work is a method for performing semantic matching between queries and tables. Specifically, we (i) represent queries and tables in multiple semantic spaces (both discrete sparse and continuous dense vector representations) and (ii) introduce various similarity measures for matching those semantic representations. We consider all possible combinations of semantic representations and similarity measures and use these as features in a supervised learning model. Using a purpose-built test collection based on Wikipedia tables, we demonstrate significant and substantial improvements over a state-of-the-art baseline.

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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