# Hands-on Lab: 4 Sampling Strategy Benchmark on IEEE-CIS Fraud Data

> Source: https://sukruyusufkaya.com/en/learn/anomali-tespiti/hands-on-ieee-cis-fraud-4-sampling-benchmark
> Updated: 2026-05-13T13:08:25.087Z
> Category: Anomali Tespiti
> Module: Module 3: Data Preparation, Imbalanced Data and Labeling
**TLDR:** Side-by-side benchmark of 4 imbalance strategies (baseline / SMOTE / class_weight / focal loss) on Kaggle IEEE-CIS Fraud data with PR-AUC, recall@k, and cost comparison — foundation for Capstone 1.