I.R.I.S. Readiris Corporate 12 for Mac User Guide - Manual (Page 60)

Chapter 8 – Recognizing documents
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train Readiris on special symbols it is unable to recognize initially,
such as mathematical and scientific symbols and dingbats.
To enable interactive learning:
 On the Learn menu, click Interactive Learning.
 Click the Recognize + Save button to recognize the document.
Readiris enters the interactive learning phase.
The characters the recognition system isn't sure of are displayed.
If the results are correct:
o
Click the Learn button to save the result as sure.
The learning results are temporarily stored in the computer memory, for
the duration of the recognition. Readiris will no longer display the
learned characters when OCRing the rest of the document.
When a new document is OCRed, the learning results are erased.
To save learning results permanently, use a font dictionary. For more
information, see the section Using font dictionaries.
o
Click Finish to save all solutions the software offers.