Confusing term of backtesting

Hi! The Wiki link under the backtesting term in the lecture leads to a different description compared to the description in the lecture (Wiki is actually correct). Backtesting refers to validation on historical data (thus the word “back”), not switching groups during the experiment. Could you please adjust the lecture to remove confusion and use standard terms used by the majority of people in the Data Science community?


Dear @Denys_Kovalenko,
Sure, we will look into this.

Thank you