pretrain

verb2

1. •
   To train before testing or further training.

   • In stage one, rats were pretrained to drink from a rotary device.
2. •
   To train (a neural network) on a large corpus or other dataset to acquire a base of general-purpose knowledge, representations, or capabilities that can subsequently be adapted, specialized, or aligned through further training.

   • Our algorithm pretrains a CNN using a large set of videos with tracking ground-truths to obtain a generic target representation. — 2015