A city streetlight shop wants hour-of-day, day-of-week, and a one-hot fixture code from a GPU table of work orders before any estimator runs. How should those columns be built?
Select an answer to reveal the explanation.
Short Explanation
Hour-of-day, day-of-week, and a one-hot fixture code belong on the GPU table as cuDF feature extraction. That is prep, not a vocabulary quiz, a hyperparameter search, or a host-side kernel.
Full Explanation
Feature extraction of time parts and category encodings is Domain 4 prep on cuDF and Arrow frames. It is not a vocabulary quiz about what a feature is, and it is not a hyperparameter search. Building those columns on the GPU table is the associate path. A kernel or a spreadsheet detour is unnecessary.