Whiten_MTD

Official repository of paper "Let All be Whitened: Multi-teacher Distillation for Efficient Visual Retrieval" accepted by AAAI 2024.

Prepare environment

Create a conda virtual environment and install required packages:

conda create -n whiten_mtd python=3.8
conda activate whiten_mtd
pip install -r requirements.txt

Prepare dataset

We use Google Landmark V2 (GLDv2) and SVD as training datasets which can be downloaded following their official repositories. GLDv2 can be used for training by passing its root path to the argument of script gld_pca_learn.py and gld_distill.py. To train on SVD, configuration file svd.yaml in config directory should be correspondingly modified.

Other two datasets Roxford5k and RParis6k should also be downloaded for evaluation.

Evaluation

Pretrained weights of teacher models and their PCA-Whitening layer can be downloaded from here.

Instance image retrieval

Pretrained student model checkpoints can be downloaded from the links below:

Teachers	Student	Links
GeM, AP-GeM, SOLAR	R18	rg_rag_rs_to_r18_ep200
GeM, AP-GeM, SOLAR	R34	rg_rag_rs_to_r34_ep200
DOLG, DELG	R18	ro_re_to_r18_ep3k
DOLG, DELG	R34	ro_re_to_r34_ep3k

To perform evaluation using our pretrained weights:

python oxford_paris_eval.py -a resnet18/34 -r PATH_TO_CHECKPOINT -dp PATH_TO_DATASET --embed_dim 512 -ms -p 3

Video retrieval

Pretrained student model checkpoints can be downloaded from the links below:

Teachers	Student	Links
MoCoV3, BarlowTwins	R18	mc_bt_to_r18_ep3k
MoCoV3, BarlowTwins	R34	mc_bt_to_r34_ep3k

To perform evaluation using our pretrained weights:

python svd_eval.py -a resnet18/34 -dm config/svd.yaml --sim_fn cf -r PATH_TO_CHECKPOINT --embed_dim 512

Training

We train all the models on a server with 8 16G V100 and batch size of 256. Run the following with our default settings to train your own models:

• On GLDv2:

python gld_distill.py -a resnet18/34 -ts resnet101_delg resnet101_dolg -c PATH_TO_SAVE_CHECKPOINTS --gld_root_path PATH_TO_DATASET

• On SVD:

python svd_distill.py -a resnet18/34 -ts mocov3 barlowtwins -c PATH_TO_SAVE_CHECKPOINTS -dm config/svd.yaml