Best Practices for Dealing with Concept Drift - neptune.ai

You trained a machine learning model, validated its performance across several metrics which are looking good, you put it in production, and then something unforeseen happened (a pandemic like COVID-19 arrived) and the model predictions have gone crazy. You fell victim to a phenomenon called concept drift. But don't feel bad as it happens to all of us all the time. Heraclitus, the Greek philosopher said, "Change is the only constant in life." In the dynamic world, nothing is constant.