Approach Zero and Anserini at the CLEF-2021 ARQMath Track: Applying Substructure Search and BM25 on Operator Tree Path Tokens.

@inproceedings{zhong-2021-approach, author = {Wei Zhong and Xinyu Zhang and Ji Xin and Richard Zanibbi and Jimmy Lin}, editor = {Guglielmo Faggioli and Nicola Ferro and Alexis Joly and Maria Maistro and Florina Piroi}, title = {{Approach Zero and Anserini at the CLEF-2021 ARQMath Track: Applying Substructure Search and BM25 on Operator Tree Path Tokens}}, booktitle = {{Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021}}, series = {CEUR Workshop Proceedings}, volume = {2936}, pages = {133--156}, publisher = {CEUR-WS.org}, year = {2021}, url = {https://ceur-ws.org/Vol-2936/paper-09.pdf} }