Number Correction Module

Purpose

Perform error detection and correction on financial numbers.

What it does

It iterates on every lines and try to apply a correction on numbers such that:

• 13S becomes 135
• o.oo becomes 0.00
• 1,802,86 becomes 1,802.86
• 443 65 becomes 443.65

This module has been made to perform error correction on scanned invoices.

Dependencies

None

How it works

It generates edits and use a scoring system to select the best candidate.
It tries to match a regex that can be change via the module's options and can also take a whitelist of elements that should be accepted as is.

Accuracy

Good

Limitations

• Can have some false positive and correct things that are not errors on numbers.