Benford first digits
MAD 0.0162 · nonconforming · n=308
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Brass is observed. Spruce is the Benford expectation. Conformity is a digit screen, not a finding.
Loading the book.
Analytics
Read the book before you read a score
Benford, fences, an isolation-style score, velocity, peers, a correlation heatmap, a weekly decomposition, and a threshold tuner against planted labels.
Precision, recall and the ROC use planted scenario labels in this synthetic book. They are not a measure of money-laundering detection. A reporting threshold is not suspicion. Planted-indicator recall on the quality page is 88%.
Amount distribution
25 IQR outliers · 5 |z| ≥ 3
Log10 CAD. The line is a Gaussian kernel density. Fences are -2300 to 4900 CAD.
Threshold tuner
AUC 0.38 on planted labels · positives 33
Precision
78%
Recall
42%
False positive rate
67%
Correlation
Customer features, Pearson
1.0
0.5
-0.4
-0.1
0.3
0.2
0.5
1.0
0.4
0.1
0.3
0.7
-0.4
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1.0
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0.3
-0.1
0.1
0.1
1.0
0.1
0.4
0.3
0.3
0.0
0.1
1.0
0.3
0.2
0.7
0.3
0.4
0.3
1.0
count · total · mean · instruments · anomaly · residual
Daily book, trend and weekday season
Additive decomposition, period 7
Brass is the daily total. Spruce is the moving-average trend. Residual mean -709.0.
Isolation-style scores
Short paths score higher. Not the production forest.
- Maple Digital Imports Ltd.0.657
- Cedar Remit Co.0.650
- Prairie Transfer MSB Ltd.0.631
- Aurora Cross-Border Trading Ltd.0.600
- Hana Wang0.573
24-hour velocity
Highest CAD inside any one-day window
- Aurora Cross-Border Trading Ltd.48,000
- Harbour Cash Services Ltd.36,200
- Cedar Remit Co.33,500
- Maple Digital Imports Ltd.31,700
- Chidi Moreau26,228
Peer ratio
Volume divided by the occupation median
- Chidi MoreauSoftware developer2.38×
- Hana WangReal estate agent2.27×
- Hana BelangerTeacher2.05×
- Daniela KowalskiReal estate agent1.37×
- Samir WangCivil engineer1.21×
- Kiran DuboisSoftware developer1.00×