Generic image compressor for machine learning. Pytorch code for our paper "Lossy compression for lossless prediction".

Overview

Lossy Compression for Lossless Prediction License: MIT Python 3.8+

Using: Using

Training: Training

This repostiory contains our implementation of the paper: Lossy Compression for Lossless Prediction. That formalizes and empirically inverstigates unsupervised training for task-specific compressors.

Using the compressor

Using

If you want to use our compressor directly the easiest is to use the model from torch hub as seen in the google colab (or notebooks/Hub.ipynb) or th example below.

Installation details
pip install torch torchvision tqdm numpy compressai sklearn git+https://github.com/openai/CLIP.git

Using pytorch>1.7.1 : CLIP forces pytorch version 1.7.1, this is because it needs this version to use JIT. If you don't need JIT (no JIT by default) you can alctually use more recent versions of torch and torchvision pip install -U torch torchvision. Make sure to update after having isntalled CLIP.


import time

import torch
from sklearn.svm import LinearSVC
from torchvision.datasets import STL10

DATA_DIR = "data/"

# list available compressors. b01 compresses the most (b01 > b005 > b001)
torch.hub.list('YannDubs/lossyless:main') 
# ['clip_compressor_b001', 'clip_compressor_b005', 'clip_compressor_b01']

# Load the desired compressor and transformation to apply to images (by default on GPU if available)
compressor, transform = torch.hub.load('YannDubs/lossyless:main','clip_compressor_b005')

# Load some data to compress and apply transformation
stl10_train = STL10(
    DATA_DIR, download=True, split="train", transform=transform
)
stl10_test = STL10(
    DATA_DIR, download=True, split="test", transform=transform
)

# Compresses the datasets and save them to file (this requires GPU)
# Rate: 1506.50 bits/img | Encoding: 347.82 img/sec
compressor.compress_dataset(
    stl10_train,
    f"{DATA_DIR}/stl10_train_Z.bin",
    label_file=f"{DATA_DIR}/stl10_train_Y.npy",
)
compressor.compress_dataset(
    stl10_test,
    f"{DATA_DIR}/stl10_test_Z.bin",
    label_file=f"{DATA_DIR}/stl10_test_Y.npy",
)

# Load and decompress the datasets from file the datasets (does not require GPU)
# Decoding: 1062.38 img/sec
Z_train, Y_train = compressor.decompress_dataset(
    f"{DATA_DIR}/stl10_train_Z.bin", label_file=f"{DATA_DIR}/stl10_train_Y.npy"
)
Z_test, Y_test = compressor.decompress_dataset(
    f"{DATA_DIR}/stl10_test_Z.bin", label_file=f"{DATA_DIR}/stl10_test_Y.npy"
)

# Downstream STL10 evaluation. Accuracy: 98.65% | Training time: 0.5 sec
clf = LinearSVC(C=7e-3)
start = time.time()
clf.fit(Z_train, Y_train)
delta_time = time.time() - start
acc = clf.score(Z_test, Y_test)
print(
    f"Downstream STL10 accuracy: {acc*100:.2f}%.  \t Training time: {delta_time:.1f} "
)

Minimal training code

Training

If your goal is to look at a minimal version of the code to simply understand what is going on, I would highly recommend starting from notebooks/minimal_compressor.ipynb (or google colab link above). This is a notebook version of the code provided in Appendix E.7. of the paper, to quickly train and evaluate our compressor.

Installation details
  1. pip install git+https://github.com/openai/CLIP.git
  2. pip uninstall -y torchtext (probably not necessary but can cause issues if got installed as wrong pytorch version)
  3. pip install scikit-learn==0.24.2 lightning-bolts==0.3.4 compressai==1.1.5 pytorch-lightning==1.3.8

Using pytorch>1.7.1 : CLIP forces pytorch version 1.7.1 you should be able to use a more recent versions. E.g.:

  1. pip install git+https://github.com/openai/CLIP.git
  2. pip install -U torch torchvision scikit-learn lightning-bolts compressai pytorch-lightning

Results from the paper

We provide scripts to essentially replicate some results from the paper. The exact results will be a little different as we simplified and cleaned some of the code to help readability. All scripts can be found in bin and run using the command bin/*/<experiment>.sh.

Installation details
  1. Clone repository
  2. Install PyTorch >= 1.7
  3. pip install -r requirements.txt

Other installation

  • For the bare minimum packages: use pip install -r requirements_mini.txt instead.
  • For conda: use conda env update --file requirements/environment.yaml.
  • For docker: we provide a dockerfile at requirements/Dockerfile.

Notes

  • CLIP forces pytorch version 1.7.1, this is because it needs this version to use JIT. We don't use JIT so you can alctually use more recent versions of torch and torchvision pip install -U torch torchvision.
  • For better logging: hydra and pytorch lightning logging don't work great together, to have a better logging experience you should comment out the folowing lines in pytorch_lightning/__init__.py :
if not _root_logger.hasHandlers():
     _logger.addHandler(logging.StreamHandler())
     _logger.propagate = False

Test installation

To test your installation and that everything works as desired you can run bin/test.sh, which will run an epoch of BICNE and VIC on MNIST.


Scripts details

All scripts can be found in bin and run using the command bin/*/<experiment>.sh. This will save all results, checkpoints, logs... The most important results (including summary resutls and figures) will be saved at results/exp_<experiment>. Most important are the summarized metrics results/exp_<experiment>*/summarized_metrics_merged.csv and any figures results/exp_<experiment>*/*.png.

The key experiments that that do not require very large compute are:

  • VIC/VAE on rotation invariant Banana distribution: bin/banana/banana_viz_VIC.sh
  • VIC/VAE on augmentation invariant MNIST: bin/mnist/augmist_viz_VIC.sh
  • CLIP experiments: bin/clip/main_linear.sh

By default all scripts will log results on weights and biases. If you have an account (or make one) you should set your username in conf/user.yaml after wandb_entity:, the passwod should be set directly in your environment variables. If you prefer not logging, you can use the command bin/*/<experiment>.sh -a logger=csv which changes (-a is for append) the default wandb logger to a csv logger.

Generally speaking you can change any of the parameters either directly in conf/**/<file>.yaml or by adding -a to the script. We are using Hydra to manage our configurations, refer to their documentation if something is unclear.

If you are using Slurm you can submit directly the script on servers by adding a config file under conf/slurm/<myserver>.yaml, and then running the script as bin/*/<experiment>.sh -s <myserver>. For example configurations files for slurm see conf/slurm/vector.yaml or conf/slurm/learnfair.yaml. For more information check the documentation from submitit's plugin which we are using.


VIC/VAE on rotation invariant Banana

Command:

bin/banana/banana_viz_VIC.sh

The following figures are saved automatically at results/exp_banana_viz_VIC/**/quantization.png. On the left we see the quantization of the Banana distribution by a standard compressor (called VAE in code but VC in paper). On the right, by our (rotation) invariant compressor (VIC).

Standard compression of Banana Invariant compression of Banana

VIC/VAE on augmentend MNIST

Command:

bin/banana/augmnist_viz_VIC.sh

The following figure is saved automatically at results/exp_augmnist_viz_VIC/**/rec_imgs.png. It shows source augmented MNIST images as well as the reconstructions using our invariant compressor.

Invariant compression of augmented MNIST

CLIP compressor

Command:

bin/clip/main_small.sh

The following table comes directly from the results which are automatically saved at results/exp_clip_bottleneck_linear_eval/**/datapred_*/**/results_predictor.csv. It shows the result of compression from our CLIP compressor on many datasets.

Cars196 STL10 Caltech101 Food101 PCam Pets37 CIFAR10 CIFAR100
Rate [bits] 1471 1342 1340 1266 1491 1209 1407 1413
Test Acc. [%] 80.3 98.5 93.3 83.8 81.1 88.8 94.6 79.0

Note: ImageNet is too large for training a SVM using SKlearn. You need to run MLP evaluation with bin/clip/clip_bottleneck_mlp_eval. Also you have to download ImageNet manually.

Cite

You can read the full paper here. Please cite our paper if you use our model:

@inproceedings{
    dubois2021lossy,
    title={Lossy Compression for Lossless Prediction},
    author={Yann Dubois and Benjamin Bloem-Reddy and Karen Ullrich and Chris J. Maddison},
    booktitle={Neural Compression: From Information Theory to Applications -- Workshop @ ICLR 2021},
    year={2021},
    url={https://arxiv.org/abs/2106.10800}
}
You might also like...
PyTorch code for our ECCV 2018 paper
PyTorch code for our ECCV 2018 paper "Image Super-Resolution Using Very Deep Residual Channel Attention Networks"

PyTorch code for our ECCV 2018 paper "Image Super-Resolution Using Very Deep Residual Channel Attention Networks"

Open-source code for Generic Grouping Network (GGN, CVPR 2022)
Open-source code for Generic Grouping Network (GGN, CVPR 2022)

Open-World Instance Segmentation: Exploiting Pseudo Ground Truth From Learned Pairwise Affinity Pytorch implementation for "Open-World Instance Segmen

Official PyTorch implemention of our paper "Learning to Rectify for Robust Learning with Noisy Labels".

WarPI The official PyTorch implemention of our paper "Learning to Rectify for Robust Learning with Noisy Labels". Run python main.py --corruption_type

Generic Event Boundary Detection: A Benchmark for Event Segmentation

Generic Event Boundary Detection: A Benchmark for Event Segmentation We release our data annotation & baseline codes for detecting generic event bound

The Generic Manipulation Driver Package - Implements a ROS Interface over the robotics toolbox for Python
The Generic Manipulation Driver Package - Implements a ROS Interface over the robotics toolbox for Python

Armer Driver Armer aims to provide an interface layer between the hardware drivers of a robotic arm giving the user control in several ways: Joint vel

Code for reproducing our analysis in the paper titled: Image Cropping on Twitter: Fairness Metrics, their Limitations, and the Importance of Representation, Design, and Agency
Code for reproducing our analysis in the paper titled: Image Cropping on Twitter: Fairness Metrics, their Limitations, and the Importance of Representation, Design, and Agency

Image Crop Analysis This is a repo for the code used for reproducing our Image Crop Analysis paper as shared on our blog post. If you plan to use this

Source code of our TTH paper: Targeted Trojan-Horse Attacks on Language-based Image Retrieval.
Source code of our TTH paper: Targeted Trojan-Horse Attacks on Language-based Image Retrieval.

Targeted Trojan-Horse Attacks on Language-based Image Retrieval Source code of our TTH paper: Targeted Trojan-Horse Attacks on Language-based Image Re

Machine Learning From Scratch. Bare bones NumPy implementations of machine learning models and algorithms with a focus on accessibility. Aims to cover everything from linear regression to deep learning.
Machine Learning From Scratch. Bare bones NumPy implementations of machine learning models and algorithms with a focus on accessibility. Aims to cover everything from linear regression to deep learning.

Machine Learning From Scratch About Python implementations of some of the fundamental Machine Learning models and algorithms from scratch. The purpose

Vowpal Wabbit is a machine learning system which pushes the frontier of machine learning with techniques such as online, hashing, allreduce, reductions, learning2search, active, and interactive learning.
Vowpal Wabbit is a machine learning system which pushes the frontier of machine learning with techniques such as online, hashing, allreduce, reductions, learning2search, active, and interactive learning.

This is the Vowpal Wabbit fast online learning code. Why Vowpal Wabbit? Vowpal Wabbit is a machine learning system which pushes the frontier of machin

Comments
  • Karen's experiments

    Karen's experiments

    Changes:

    • val_equivalence flag allows to have different equivalences at test time -> if used will automatically set is_augment_val=True
    • adding the option of having joint augmentations (specific. rotation)
    opened by KarenUllrich 2
  • Ever Use a Projection Head?

    Ever Use a Projection Head?

    Hi Yann,

    Did you ever use a project head [1] (i.e., a multi-layer perceptron) to transform the output of the encoder?

    If I understand correctly, you directly feed the output of the encoder (e.g., a pre-trained ResNet model) into the rate estimator?

    Thanks!

    Reference:

    [1] Chen, T., Kornblith, S., Norouzi, M., & Hinton, G. (2020, November). A simple framework for contrastive learning of visual representations. In International conference on machine learning (pp. 1597-1607). PMLR.

    opened by DarrenZhang01 1
  • Efficient way to integrate lossyless into a PyTorch Dataset subclass

    Efficient way to integrate lossyless into a PyTorch Dataset subclass

    Hey @YannDubs,

    I recently discovered your paper and find the idea very interesting. Therefore, I would like to integrate lossyless into a project I am currently working on. However, there are two requirements/presuppositions in my project that your compressor on PyTorch Hub does not cover as far as I understand it:

    • I assume that the training data do not fit into memory so I cannot decompress the entire dataset at once.
    • Because I cannot load the entire data into memory and shuffle them there, I need access to individual samples of the dataset (for random permutations) without touching the rest of the data (or as little as possible).

    Basically, I would like to integrate lossyless into a subclass of PyTorch's Dataset that implements the __getitem__(index) interface. Before I start experimenting on my own and potentially overlook something that you already thought about, I wanted to ask you if you already considered approaches how to integrate your idea into a PyTorch Dataset.

    Looking forward to a discussion!

    opened by lbhm 5
Owner
Yann Dubois
ML research
Yann Dubois
Group R-CNN for Point-based Weakly Semi-supervised Object Detection (CVPR2022)

Group R-CNN for Point-based Weakly Semi-supervised Object Detection (CVPR2022) By Shilong Zhang*, Zhuoran Yu*, Liyang Liu*, Xinjiang Wang, Aojun Zhou,

Shilong Zhang 129 Dec 24, 2022
Huawei Hackathon 2021 - Sweden (Stockholm)

huawei-hackathon-2021 Contributors DrakeAxelrod Challenge Requirements: python=3.8.10 Standard libraries (no importing) Important factors: Data depend

Drake Axelrod 32 Nov 08, 2022
This repository contains the source code of an efficient 1D probabilistic model for music time analysis proposed in ICASSP2022 venue.

Jump Reward Inference for 1D Music Rhythmic State Spaces An implementation of the probablistic jump reward inference model for music rhythmic informat

Mojtaba Heydari 25 Dec 16, 2022
Code for "Learning the Best Pooling Strategy for Visual Semantic Embedding", CVPR 2021

Learning the Best Pooling Strategy for Visual Semantic Embedding Official PyTorch implementation of the paper Learning the Best Pooling Strategy for V

Jiacheng Chen 106 Jan 06, 2023
Sandbox for training deep learning networks

Deep learning networks This repo is used to research convolutional networks primarily for computer vision tasks. For this purpose, the repo contains (

Oleg Sémery 2.7k Jan 01, 2023
This repo is customed for VisDrone.

Object Detection for VisDrone(无人机航拍图像目标检测) My environment 1、Windows10 (Linux available) 2、tensorflow = 1.12.0 3、python3.6 (anaconda) 4、cv2 5、ensemble

53 Jul 17, 2022
CryptoFrog - My First Strategy for freqtrade

cryptofrog-strategies CryptoFrog - My First Strategy for freqtrade NB: (2021-04-20) You'll need the latest freqtrade develop branch otherwise you migh

Robert Davey 137 Jan 01, 2023
Multi-Modal Machine Learning toolkit based on PyTorch.

简体中文 | English TorchMM 简介 多模态学习工具包 TorchMM 旨在于提供模态联合学习和跨模态学习算法模型库,为处理图片文本等多模态数据提供高效的解决方案,助力多模态学习应用落地。 近期更新 2022.1.5 发布 TorchMM 初始版本 v1.0 特性 丰富的任务场景:工具

njustkmg 1 Jan 05, 2022
Object Detection using YOLO from PyImageSearch

Object Detection using YOLO from PyImageSearch By applying object detection, you’ll not only be able to determine what is in an image, but also where

Mohamed NIANG 1 Feb 09, 2022
Python library for tracking human heads with FLAME (a 3D morphable head model)

Video Head Tracker 3D tracking library for human heads based on FLAME (a 3D morphable head model). The tracking algorithm is inspired by face2face. It

61 Dec 25, 2022
Code for "Multi-Time Attention Networks for Irregularly Sampled Time Series", ICLR 2021.

Multi-Time Attention Networks (mTANs) This repository contains the PyTorch implementation for the paper Multi-Time Attention Networks for Irregularly

The Laboratory for Robust and Efficient Machine Learning 68 Dec 17, 2022
Constrained Logistic Regression - How to apply specific constraints to logistic regression's coefficients

Constrained Logistic Regression Sample implementation of constructing a logistic regression with given ranges on each of the feature's coefficients (v

1 Dec 29, 2021
Code to reproduce the experiments from our NeurIPS 2021 paper " The Limitations of Large Width in Neural Networks: A Deep Gaussian Process Perspective"

Code To run: python runner.py new --save SAVE_NAME --data PATH_TO_DATA_DIR --dataset DATASET --model model_name [options] --n 1000 - train - t

Geoff Pleiss 5 Dec 12, 2022
'Solving the sampling problem of the Sycamore quantum supremacy circuits

solve_sycamore This repo contains data, contraction code, and contraction order for the paper ''Solving the sampling problem of the Sycamore quantum s

Feng Pan 29 Nov 28, 2022
Semiconductor Machine learning project

Wafer Fault Detection Problem Statement: Wafer (In electronics), also called a slice or substrate, is a thin slice of semiconductor, such as a crystal

kunal suryawanshi 1 Jan 15, 2022
Imposter-detector-2022 - HackED 2022 Team 3IQ - 2022 Imposter Detector

HackED 2022 Team 3IQ - 2022 Imposter Detector By Aneeljyot Alagh, Curtis Kan, Jo

Joshua Ji 3 Aug 20, 2022
Unet network with mean teacher for altrasound image segmentation

Unet network with mean teacher for altrasound image segmentation

5 Nov 21, 2022
⚓ Eurybia monitor model drift over time and securize model deployment with data validation

View Demo · Documentation · Medium article 🔍 Overview Eurybia is a Python library which aims to help in : Detecting data drift and model drift Valida

MAIF 172 Dec 27, 2022
Source code for "UniRE: A Unified Label Space for Entity Relation Extraction.", ACL2021.

UniRE Source code for "UniRE: A Unified Label Space for Entity Relation Extraction.", ACL2021. Requirements python: 3.7.6 pytorch: 1.8.1 transformers:

Wang Yijun 109 Nov 29, 2022
Training Cifar-10 Classifier Using VGG16

opevcvdl-hw3 This project uses pytorch and Qt to achieve the requirements. Version Python 3.6 opencv-contrib-python 3.4.2.17 Matplotlib 3.1.1 pyqt5 5.

Kenny Cheng 3 Aug 17, 2022