Check also Neurips 2020 survey:

  
      

      arXiv.org
  

  
    

A Survey of Deep Learning Approaches for OCR and Document Understanding 1

  Documents are a core part of many businesses in many fields such as law,
finance, and technology among others. Automatic understanding of documents such
as invoices, contracts, and resumes is lucrative, opening up many new avenues
of business. The...