@inproceedings{bf7bf3c191f94501b36e5db515dfc547,
title = "Enhancing Open-Domain Table Question Answering via Syntax- and Structure-aware Dense Retrieval",
abstract = "Open-domain table question answering aims to provide answers to a question by retrieving and extracting information from a large collection of tables. Existing studies of open-domain table QA either directly adopt text retrieval methods or consider the table structure only in the encoding layer for table retrieval, which may cause syntactical and structural information loss during table scoring. To address this issue, we propose a syntax- and structure-aware retrieval method for the open-domain table QA task. It provides syntactical representations for the question and uses the structural header and value representations for the tables to avoid the loss of fine-grained syntactical and structural information. Then, a syntactical-to-structural aggregator is used to obtain the matching score between the question and a candidate table by mimicking the human retrieval process.",
author = "Nengzheng Jin and Dongfang Li and Junying Chen and Joanna Siebert and Qingcai Chen",
note = "Publisher Copyright: {\textcopyright}2023 Association for Computational Linguistics.; 13th International Joint Conference on Natural Language Processing and the 3rd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics, IJCNLP-AACL 2023 ; Conference date: 01-11-2023 Through 04-11-2023",
year = "2023",
doi = "10.18653/v1/2023.ijcnlp-short.18",
language = "英语",
series = "Proceedings of the 13th International Joint Conference on Natural Language Processing and the 3rd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics: Long Papers, IJCNLP-AACL 2023",
publisher = "Association for Computational Linguistics (ACL)",
pages = "157--165",
editor = "Park, \{Jong C.\} and Yuki Arase and Baotian Hu and Wei Lu and Derry Wijaya and Ayu Purwarianti and Krisnadhi, \{Adila Alfa\}",
booktitle = "Short Papers",
address = "澳大利亚",
}