Before revision:  Evaluation on various datasets of popular business documents (invoices, receipts) shows that our proposed method can improve the performance of existing modelssignificantly, while providing a mechanism to accumulate model knowledge from multiple downstream IE tasks.
After revision:  Evaluation on various datasets of popular business documents (invoices, receipts) shows that our proposed method achieves significant improvements compared to existing models. The method also provides a mechanism for knowledge accumulation from multiple downstream IE tasks.