Raunak Ghawghawe

Data Scientist

Raunak Ghawghawe

Real-Time Credit Card Fraud Detection

Advanced ML system using ensemble methods and explainable AI.

⚠️ Educational Simulation

Uses completely synthetic data and simulated ML processes. No real customer information is used.

Advanced ML Models

Ensemble of Logistic Regression + Random Forest

Real-Time Processing

Sub-second fraud detection with explainable AI

Business Impact

Reduces fraud losses while protecting members

Live Fraud Detection Simulator

Start the simulation to generate transactions in real-time. Click any transaction to view detailed ML analysis.

50%Fraud Detection Threshold (Higher = fewer false alarms, may miss some fraud)

0

Total

0

Actual Fraud

0

Detected

0

False Positives

0.0%

Accuracy

Live Transaction Stream

Real-time fraud detection results

Start the simulation to see live transactions

Analysis

Click a transaction to analyze

Select a transaction to analyze

How This ML System Works

Feature Engineering

  • • Amount Z-Score normalization
  • • Merchant risk scoring
  • • Geographic risk assessment
  • • Time-based patterns
  • • Feature interactions

ML Architecture

  • • Logistic Regression model
  • • Random Forest ensemble
  • • 60% logistic + 40% RF
  • • Configurable thresholds
  • • Real-time scoring

Business Value

  • • $10M+ potential savings
  • • Improved member experience
  • • Regulatory compliance
  • • Reduced false positives
  • • Scalable architecture