Dense Hierarchical Retrieval for Open-domain Question Answering.

Ye Liu Kazuma Hashimoto Yingbo Zhou Semih Yavuz Caiming Xiong Philip S. Yu

Published in: EMNLP (Findings) (2021)

Keyphrases

open domain question answering
question answering
information retrieval
test collection
information retrieval systems
answer extraction
image retrieval
document retrieval
text retrieval
passage retrieval
information extraction
retrieval model