fix early stopping

add early stopping

add optuna hparam search

update for 3 x 3 patch size

add cache for 3x3 snippet size

add multiprocessing for aggregate cache computation

update README and add clip_cache

add frequency for pseudo-label updates

squeeze before saving and loading cached vectors

fix clip_cache variable snippet_size, add experiment configs

log pseudo label mAP, remove imports, update requirements and README

fix optimisation, add wandb logs, fix pseudo cache

fix checkpointing

add pseudo label caching

add train, val code, resnet101 and transforms