TY  - JOUR
T1  - R²FID: Joint Reranker in Fusion-In-Decoder for Open Domain Question Answering over Tables
AU  - Lee, Sung-Min 
AU  - Park, Eunhwan 
AU  - Seo, Daeryong 
AU  - Jeon, Donghyeon 
AU  - Kang, Inho 
AU  - Na, Seung-Hoon 
JO  - Journal of KIISE, JOK
PY  - 2023
DA  - 2023/1/14
DO  - 10.5626/JOK.2023.50.10.874
KW  - question answering
KW  - FID
KW  - Dense Passage Retrieval
AB  - Open Domain Question Answering is a challenging problem that aims to generate an answer where reference documents relevant to a question are not provided. Considering that the importance of the QA system in structured data such as tables has recently gradually increased, this paper presents a method for table open domain question answering of Korean, focusing on tabular contents appearing in Wikipedia. In addition, we extensively apply the Joint Reranker based Fusion-In-Decoder to address limitations entailed in table retrieval, Resulting methods based on Joint Reranker led to improvements of an EM of 3.36 and a F1-Score of 3.25 over open domain question answering tasks.