Extraction of information from the document into a field occurs in two distinct steps.
- Analysis: In this step, the document content is analyzed and a set of possible values for a field is generated. These values are called candidates.
- Evaluation: In this step, the correct candidate is selected from the set of candidates.
BIC supports several analysis methods. The best choice for the evaluation method depends on the selected analysis method. Analysis and evaluation methods are defined at the field level.
Although it is possible to combine several classification methods for each class, you can use only one analysis method and one evaluation method per field.
Evaluation is normally only necessary for the Format Analysis engine. You can also use it for the Zone Analysis Engine if various zones are defined. Other engines do not need an evaluation engine.
The following extraction engines are available.