Field-level exact match (does extracted value match ground truth?), partial match / token F1 for variable-format fields like dates, overall document accuracy (all fields correct), null rate (fields model failed to extrac

Field-level exact match (does extracted value match ground truth?), partial match / token F1 for variable-format fields like dates, overall document accuracy (all fields correct), null rate (fields model failed to extract), and false positive rate (model extracted something for an absent field). Ground truth: manually annotated 200 representative documents by a domain expert.