When “Good Enough” Metrics Hide a Broken Model: Building a Credit Card Fraud Detection Pipeline

Byali

Jun 20, 2026 #python

Six of thirteen fraud detection models looked fine on F1. None of them could catch a single fraudster at 90% precision.

When “Good Enough” Metrics Hide a Broken Model: Building a Credit Card Fraud Detection Pipeline Six of thirteen fraud detection models looked fine on F1. None of them could catch a single fraudster at 90% precision.Continue reading on Medium » Read More Python on Medium

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When “Good Enough” Metrics Hide a Broken Model: Building a Credit Card Fraud Detection Pipeline

Byali

By ali

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