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Hybrid Hierarchical Retrieval for Open-Domain Question Answering.
Manoj Ghuhan Arivazhagan
Lan Liu
Peng Qi
Xinchi Chen
William Yang Wang
Zhiheng Huang
Published in:
ACL (Findings) (2023)
Keyphrases
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open domain question answering
question answering
information retrieval
information retrieval systems
test collection
answer extraction
query expansion
document retrieval
retrieval model
high level
relevance feedback
web search
retrieval systems