TS-10: Validation methods for time series

Notebook: https://www.kaggle.com/code/konradb/ts-10-validation-methods-for-time-series Every ML practitioner knows that validation matters: while it is common knowledge for classification and regression models, time series models have received less attention on that front. In this episode we will walk through different manners of assessing performance of time series models without breaking the arrow of time.