@inbook{10.1145/3447548.3467425, 
  author = {Yang, Qingping and Cao, Yixuan and Li, Hongwei and Luo, Ping}, 
  title = {Numerical Formula Recognition from Tables}, 
  year = {2021}, 
  isbn = {9781450383325}, 
  publisher = {Association for Computing Machinery}, 
  address = {New York, NY, USA}, 
  url = {https://doi.org/10.1145/3447548.3467425}, 
  booktitle = {Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery & Data Mining}, 
  pages = {1986–1996}, 
  numpages = {11} 
}