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Discovering Data Drift with DVC

Milecia McGregor looks at a version control system for ML projects (and data):

What happens when the machine learning model you’ve worked so hard to get to production becomes stale? Machine learning engineers and data scientists face this problem all the time. You usually have to figure out where the data drift started so you can determine what input data has changed. Then you need to retrain the model with this new dataset.

Retraining could involve a number of experiments across multiple datasets, and it would be helpful to be able to keep track of all of them. In this tutorial, we’ll walk through how using DVC, an open source version control system for machine learning projects, can help you keep track of those experiments and how this will speed up the time it takes to get new models out to production, preventing stale ones from lingering too long.

My team is working on integrating DVC. It’s a really good project for analytics teams, as it extends the notion of version control to datasets and helps you tie in code (source control), models (tools like MLflow), and data.

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