Experiment 3 - Error Analysis

Experiment 3 – Error Analysis & Automatic Correction

This experiment applies mathematical correction algorithms to receipts with detected errors and warnings (from Experiment 2). The goal is to automatically fix arithmetic inconsistencies while preserving compliance with Australian GST rules.

Scientific Methodology
Automatic Correction Algorithm

• Based on Australian tax legislation principles and arithmetic consistency rules.

Applied Formulas:
  • Consistency Check: amount_total = amount_excl_tax + gst
  • Standard GST Rate: gst = amount_excl_tax × 0.10
  • Acceptable Tolerance: |difference| ≤ $0.01 AUD
  • Rate Correction: If 0.098 ≤ gst_rate ≤ 0.102, then adjust to 0.10
Correctness Criteria:
  • Mathematical consistency of amounts
  • GST compliance (10%)
  • Minimise deviation from original values
  • Prioritise correction of critical errors
Verification Recommendations

To ensure reliability of corrections:

  1. Compare corrected values with original documents
  2. Confirm GST rate aligns with current legislation
  3. Verify arithmetic accuracy of all recalculated totals
  4. Refer back to supplier's primary documents when uncertain
Data Input

• Receipts analysed: 6 (from Experiment 2)
• Status: 5 with errors, 6 with warnings, 0 valid

Available 0 receipts with errors and warnings for analysis