MD Minhazur Rahman - Data Scientist / ML Engineer

Card Fraud Detection

A LightGBM model scores a card transaction for fraud risk in real time. Try the presets, then read the risk drivers it surfaces.

LightGBMROC-AUC 0.90PR-AUC 0.49 (~8x base)GCP Cloud Runsynthetic demo data

Amount ($)

Hour (0-23)

Day

Merchant category

Customer age

Account age (days)

Txns in last 24h

Avg amount (30d)

Distance from home (km)

Foreign transaction

Fraud probability

LightGBM - imbalanced classification - threshold tuned on a validation split - API docs - source