Pretext task 란?

A pretext task is used in self-supervised learning to generate useful feature representations, where “useful” means a representation that should be easily adaptable for other tasks, unknown during training time.

Pretext Task: Pretext tasks are pre-designed tasks for networks to solve, and visual features are learned by learning objective functions of pretext tasks.

https://stats.stackexchange.com/questions/404602/pretext-task-in-computer-vision