The acronym "CTR" is frequently used in CatBoost https://catboost.ai/docs/concepts/algorithm-main-stages_cat-to-numberic.html to represent a type of value. But I couldn't find what the acronym stands for. Could you please spell out the non acronym form, and provide some references to its definition?
Ctr is an acronym of click-through rate. They encode categorically features using this metric to get better results. It is quite similar to mean encoding.
I didn't get any online resource for reference.