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Approach Zero and Anserini at the CLEF-2021 ARQMath Track: Applying Substructure Search and BM25 on Operator Tree Path Tokens.
Wei Zhong
Xinyu Zhang
Ji Xin
Richard Zanibbi
Jimmy Lin
Published in:
CLEF (Working Notes) (2021)
Keyphrases
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information retrieval
search algorithm
tree search
query expansion
test collection
retrieval effectiveness
partial order
search space
information extraction
shortest path
tree structure
retrieval model
cross language
indexing structure