UnitedQA: A Hybrid Approach for Open Domain Question Answering.

Hao Cheng Yelong Shen Xiaodong Liu Pengcheng He Weizhu Chen Jianfeng Gao

Published in: CoRR (2021)

Keyphrases

open domain question answering
question answering
information retrieval
domain specific
answer extraction
data mining
machine learning
metadata
contextual information
knowledge base
low level
semantic roles