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OCL Survey Code

Code for the paper A Comprehensive Empirical Evaluation on Online Continual Learning, Albin Soutif--Cormerais, Antonio Carta, Andrea Cossu, Julio Hurtado, Hamed Hemati, Vincenzo Lomonaco, Joost van de Weijer, ICCV Workshop 2023 arxiv

This repository is meant to serve as an extensible codebase to perform experiments on the Online Continual Learning setting. It is based on the avalanche library. Feel free to use it for your own experiments. You can also contribute and add your own method and benchmarks to the comparison by doing a pull request !

Installation

Clone this repository

git clone https://github.com/AlbinSou/ocl_survey.git

Create a new environment with python 3.10

conda create -n ocl_survey python=3.10
conda activate ocl_survey

Install specific ocl_survey repo dependencies

pip install -r requirements.txt

Set your PYTHONPATH as the root of the project

conda env config vars set PYTHONPATH=/home/.../ocl_survey

In order to let the scripts know where to fetch and log data, you should also create a deploy config, indicating where the results should be stored and the datasets fetched. Either add a new one or change the content of config/deploy/default.yaml

Lastly, test the environment by launching main.py

cd experiments/
python main.py strategy=er experiment=split_cifar100

Structure

The code is structured as follows:

├── avalanche.git # Avalanche-Lib code
├── config # Hydra config files
│   ├── benchmark
│   ├── best_configs # Best configs found by main_hp_tuning.py are stored here
│   ├── deploy # Contains machine specific results and data path
│   ├── evaluation # Manage evaluation frequency and parrallelism
│   ├── experiment # Manage general experiment settings
│   ├── model
│   ├── optimizer
│   ├── scheduler
│   └── strategy
├── experiments
│   ├── main_hp_tuning.py # Main script used for hyperparameter optimization
│   ├── main.py # Main script used to launch single experiments
│   └── spaces.py
├── notebooks
├── results # Exemple results structure containing results for ER
├── scripts
    └── get_results.py # Easily collect results from multiple seeds
├── src
│   ├── factories # Contains the Benchmark, Method, and Model creation
│   ├── strategies # Contains code for additional strategies or plugins
│   └── toolkit
└── tests

Experiments launching

To launch an experiment, start from the default config file and change the part that needs to change

python main.py strategy=er_ace experiment=split_cifar100 evaluation=parallel

It's also possible to override more fine-grained arguments

python main.py strategy=er_ace experiment=split_cifar100 evaluation=parallel strategy.alpha=0.7 optimizer.lr=0.05

Finally, to use the parameters found by the hyperparameter search, use

python main.py strategy=er_ace experiment=split_cifar100 +best_configs=split_cifar100/er_ace

Before running the script, you can display the full config with "-c job" option

python main.py strategy=er_ace experiment=split_cifar100 evaluation=parallel -c job

Results will be saved in the directory specified in results.yaml. Under the following structure:

<results_dir>/<strategy_name>_<benchmark_name>/<seed>/

Hyperparameter selection

Modify the strategy specific search parameters, search range etc ... inside main_hp_tuning.py then run

python main_hp_tuning.py strategy=er_ace experiment=split_cifar100

Citation

If you use this repo for a research project please use the following citation:

@inproceedings{soutif2023comprehensive,
  title={A comprehensive empirical evaluation on online continual learning},
  author={Soutif-Cormerais, Albin and Carta, Antonio and Cossu, Andrea and Hurtado, Julio and Lomonaco, Vincenzo and Van de Weijer, Joost and Hemati, Hamed},
  booktitle={Proceedings of the IEEE/CVF International Conference on Computer Vision},
  pages={3518--3528},
  year={2023}
}