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Apr, 2022
TABi: 面向开放域实体检索的类型感知双编码器
TABi: Type-Aware Bi-Encoders for Open-Domain Entity Retrieval
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Megan Leszczynski, Daniel Y. Fu, Mayee F. Chen, Christopher Ré
TL;DR
本研究提出了TABi,一种基于知识图谱类型和非结构化文本共同训练双编码器的实体检索方法。TABi利用强制执行类型的对比损失来提高稀有实体的检索,并在开放域任务中保持强大的检索性能。
Abstract
entity retrieval
--retrieving information about entity mentions in a query--is a key step in
open-domain tasks
, such as question answering or fact checking. However, state-of-the-art entity retrievers struggle to
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