Covid 19 Made Your Data Set Worthless Now What
When it comes to predicting demand or consumer behavior, there is nothing in the historical data that resembles what we see now. Thus, a model based purely on historical data will try to reproduce “what is normal” and is likely to give inaccurate predictions. Let me give you a simple analogy of the problem that data scientists and machine learning professionals are now experiencing. If you want to predict how long it is going to take to drive from A to B in London next Thursday at 18:00, you can ask a model that looks at historical driving times, and possibly at various scales....