Customer Attrition: How to Define Churn When Customers Do Not Tell They’re Leaving

The author details two examples of defining customer churn in contexts where it is not explicit: Retail and Banking.

Guillaume Colley
Towards Data Science
9 min readFeb 15, 2024

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Photo by Mantas Hesthaven on Unsplash

Introduction

Retaining customers is easier and cheaper than acquiring new ones (here and here)…

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A passionate Data Science leader and practitioner, I write about what I learned when solving real-life business problems with Machine Learning and AI