This repository contains source code for the experiments in a paper titled Semi-Supervised Learning with Ladder Networks by A Rasmus, H Valpola, M Honkala, M Berglund, and T Raiko.
Refer to the Blocks installation instructions for details but use tag v0.2 instead. Something along:
pip install git+git://github.com/mila-udem/[email protected]
pip install git+git://github.com/mila-udem/[email protected]
Fuel comes with Blocks, but you need to download and convert the datasets. Refer to the Fuel documentation. One might need to rename the converted files.
fuel-download mnist
fuel-convert mnist --dtype float32
fuel-download cifar10
fuel-convert cifar10
Alternatively, one can use the environment.yml file that is provided in this repo to create an conda environment.
- First install anaconda from https://www.continuum.io/downloads. Then,
conda env create -f environment.ymlsource activate ladder- The environment should be good to go!
The following commands train the models with seed 1. The reported numbers in the paper are averages over
several random seeds. These commands use all the training samples for training (--unlabeled-samples 60000)
and none are used for validation. This results in a lot of NaNs being printed during the trainining, since
the validation statistics are not available. If you want to observe the validation error and costs during the
training, use --unlabeled-samples 50000.
# Full
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 1000,1,0.01,0.01,0.01,0.01,0.01 --labeled-samples 60000 --unlabeled-samples 60000 --seed 1 -- mnist_all_full
# Bottom
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 2000,0,0,0,0,0,0 --labeled-samples 60000 --unlabeled-samples 60000 --seed 1 -- mnist_all_bottom
# Gamma model
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec 0-0-0-0-0-0-gauss --denoising-cost-x 0,0,0,0,0,0,2 --labeled-samples 60000 --unlabeled-samples 60000 --seed 1 -- mnist_all_gamma
# Supervised baseline
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec 0-0-0-0-0-0-0 --denoising-cost-x 0,0,0,0,0,0,0 --labeled-samples 60000 --unlabeled-samples 60000 --f-local-noise-std 0.5 --seed 1 -- mnist_all_baseline
# Full
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 1000,10,0.1,0.1,0.1,0.1,0.1 --labeled-samples 100 --unlabeled-samples 60000 --seed 1 -- mnist_100_full
# Bottom-only
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 5000,0,0,0,0,0,0 --labeled-samples 100 --unlabeled-samples 60000 --seed 1 -- mnist_100_bottom
# Gamma
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec 0-0-0-0-0-0-gauss --denoising-cost-x 0,0,0,0,0,0,0.5 --labeled-samples 100 --unlabeled-samples 60000 --seed 1 -- mnist_100_gamma
# Supervised baseline
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec 0-0-0-0-0-0-0 --denoising-cost-x 0,0,0,0,0,0,0 --labeled-samples 100 --unlabeled-samples 60000 --f-local-noise-std 0.5 --seed 1 -- mnist_100_baseline
# Full
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 2000,20,0.1,0.1,0.1,0.1,0.1 --f-local-noise-std 0.2 --labeled-samples 1000 --unlabeled-samples 60000 --seed 1 -- mnist_1000_full
# Bottom-only
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 2000,0,0,0,0,0,0 --labeled-samples 1000 --unlabeled-samples 60000 --seed 1 -- mnist_1000_bottom
# Gamma model
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec 0-0-0-0-0-0-gauss --denoising-cost-x 0,0,0,0,0,0,10 --labeled-samples 1000 --unlabeled-samples 60000 --seed 1 -- mnist_1000_gamma
# Supervised baseline
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec 0-0-0-0-0-0-0 --denoising-cost-x 0,0,0,0,0,0,0 --labeled-samples 1000 --unlabeled-samples 60000 --f-local-noise-std 0.5 --seed 1 -- mnist_1000_baseline
# Full model
run.py train --encoder-layers 1000-500-250-250-250-10 --decoder-spec gauss --denoising-cost-x 2000,20,0.1,0.1,0.1,0.1,0.1 --labeled-samples 50 --unlabeled-samples 60000 --seed 1 -- mnist_50_full
# Conv-FC
run.py train --encoder-layers convv:1000:26:1:1-convv:500:1:1:1-convv:250:1:1:1-convv:250:1:1:1-convv:250:1:1:1-convv:10:1:1:1-globalmeanpool:0 --decoder-spec gauss --denoising-cost-x 1000,10,0.1,0.1,0.1,0.1,0.1,0.1 --labeled-samples 100 --unlabeled-samples 60000 --seed 1 -- mnist_100_conv_fc
# Conv-Small, Gamma
run.py train --encoder-layers convf:32:5:1:1-maxpool:2:2-convv:64:3:1:1-convf:64:3:1:1-maxpool:2:2-convv:128:3:1:1-convv:10:1:1:1-globalmeanpool:6:6-fc:10 --decoder-spec 0-0-0-0-0-0-0-0-0-gauss --denoising-cost-x 0,0,0,0,0,0,0,0,0,1 --labeled-samples 100 --unlabeled-samples 60000 --seed 1 -- mnist_100_conv_gamma
# Conv-Small, supervised baseline. Overfits easily, so keep training short.
run.py train --encoder-layers convf:32:5:1:1-maxpool:2:2-convv:64:3:1:1-convf:64:3:1:1-maxpool:2:2-convv:128:3:1:1-convv:10:1:1:1-globalmeanpool:6:6-fc:10 --decoder-spec 0-0-0-0-0-0-0-0-0-0 --denoising-cost-x 0,0,0,0,0,0,0,0,0,0 --num-epochs 20 --lrate-decay 0.5 --f-local-noise-std 0.45 --labeled-samples 100 --unlabeled-samples 60000 --seed 1 -- mnist_100_conv_baseline
# Conv-Large, Gamma
./run.py train --encoder-layers convv:96:3:1:1-convf:96:3:1:1-convf:96:3:1:1-maxpool:2:2-convv:192:3:1:1-convf:192:3:1:1-convv:192:3:1:1-maxpool:2:2-convv:192:3:1:1-convv:192:1:1:1-convv:10:1:1:1-globalmeanpool:0 --decoder-spec 0-0-0-0-0-0-0-0-0-0-0-0-gauss --dataset cifar10 --act leakyrelu --denoising-cost-x 0,0,0,0,0,0,0,0,0,0,0,0,4.0 --num-epochs 70 --lrate-decay 0.86 --seed 1 --whiten-zca 3072 --contrast-norm 55 --top-c False --labeled-samples 4000 --unlabeled-samples 50000 -- cifar_4k_gamma
# Conv-Large, supervised baseline. Overfits easily, so keep training short.
./run.py train --encoder-layers convv:96:3:1:1-convf:96:3:1:1-convf:96:3:1:1-maxpool:2:2-convv:192:3:1:1-convf:192:3:1:1-convv:192:3:1:1-maxpool:2:2-convv:192:3:1:1-convv:192:1:1:1-convv:10:1:1:1-globalmeanpool:0 --decoder-spec 0-0-0-0-0-0-0-0-0-0-0-0-0 --dataset cifar10 --act leakyrelu --denoising-cost-x 0,0,0,0,0,0,0,0,0,0,0,0,0 --num-epochs 20 --lrate-decay 0.5 --seed 1 --whiten-zca 3072 --contrast-norm 55 --top-c False --labeled-samples 4000 --unlabeled-samples 50000 -- cifar_4k_baseline
After training a model, you can infer the results on a test set by performing the evaluate command.
An example use after training a model:
./run.py evaluate results/mnist_all_bottom0
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