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HopRetriever: Retrieve Hops over Wikipedia to Answer Complex Questions.
Shaobo Li
Xiaoguang Li
Lifeng Shang
Xin Jiang
Qun Liu
Chengjie Sun
Zhenzhou Ji
Bingquan Liu
Published in:
AAAI (2021)
Keyphrases
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correct answers
high level
natural language questions
database
document collections
complex systems
answer questions
neural network
knowledge base
email
semantic relations
complex queries
overlay network
candidate answers
question answer pairs