Tutorials

Step-by-step guides to build production fraud detection systems

Learning Path

Beginner
2-3 hours
Intermediate
4-6 hours
Advanced
8-10 hours
Expert
Production Ready

Beginner

30 min

Understanding Transaction Data

Learn the structure of transaction data and key fields for fraud detection.

Data Analysis EDA
45 min

Handling Imbalanced Data

Techniques for dealing with highly imbalanced fraud datasets.

SMOTE Class Weights
1 hour

Your First Fraud Model

Build a simple Random Forest classifier for fraud detection.

scikit-learn Random Forest
45 min

Evaluating Fraud Models

Understanding precision, recall, and why accuracy isn't enough.

Metrics ROC-AUC

Intermediate

1.5 hours

XGBoost for Fraud Detection

Train and tune XGBoost models for high-performance fraud scoring.

XGBoost Hyperparameters
2 hours

Feature Engineering for Fraud

Create powerful features: velocity, aggregations, and behavioral patterns.

Features Aggregations
1.5 hours

Isolation Forest Anomaly Detection

Detect anomalous transactions without labeled fraud data.

Unsupervised Anomaly
1 hour

Building a Rule Engine

Implement deterministic rules to complement ML models.

Rules Hybrid

Advanced

3 hours

Real-Time Streaming with Kafka

Build a streaming fraud detection pipeline with Apache Kafka.

Kafka Streaming
2.5 hours

Graph-Based Fraud Ring Detection

Use graph algorithms to detect connected fraud networks.

NetworkX Neo4j
2 hours

Building a Feature Store

Implement low-latency feature serving with Redis and Feast.

Redis Feast
2 hours

Ensemble Methods & Stacking

Combine multiple models for maximum fraud detection accuracy.

Ensemble Stacking

Expert

4 hours

Deep Learning for Fraud Detection

LSTM and Transformer models for sequential transaction patterns.

PyTorch LSTM
5 hours

Production Deployment on Kubernetes

Deploy scalable fraud detection with K8s, monitoring, and auto-scaling.

Kubernetes MLOps