126 lines
3.8 KiB
Markdown
126 lines
3.8 KiB
Markdown
<h1 align="center">
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<picture>
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<source media="(prefers-color-scheme: dark)" srcset="./imgs/evox_logo_dark.png">
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<source media="(prefers-color-scheme: light)" srcset="./imgs/evox_logo_light.png">
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<a href="https://github.com/EMI-Group/evox">
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<img alt="EvoX Logo" height="50" src="./imgs/evox_logo_light.png">
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</a>
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</picture>
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<br>
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</h1>
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<p align="center">
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🌟 TensorNEAT: Tensorized NEAT Implementation in JAX 🌟
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</p>
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<p align="center">
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<a href="https://arxiv.org/abs/2404.01817">
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<img src="https://img.shields.io/badge/paper-arxiv-red?style=for-the-badge" alt="TensorNEAT Paper on arXiv">
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</a>
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</p>
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## Introduction
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TensorNEAT is a libaray for NeuroEvolution of Augmenting Topologies (NEAT) algorithms, focused on harnessing GPU acceleration to enhance the efficiency of evolving neural network structures for complex tasks. Its core mechanism involves the tensorization of network topologies, enabling parallel processing and significantly boosting computational speed and scalability by leveraging modern hardware accelerators. TensorNEAT is compatible with the [EvoX](https://github.com/EMI-Group/evox/) framewrok in JAX.
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## Requirements
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TensorNEAT requires:
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- jax (version >= 0.4.16)
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- jaxlib (version >= 0.3.0)
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- brax [optional]
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- gymnax [optional]
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## Example
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Simple Example for XOR problem:
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```python
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from pipeline import Pipeline
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from algorithm.neat import *
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from problem.func_fit import XOR3d
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if __name__ == '__main__':
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pipeline = Pipeline(
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algorithm=NEAT(
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species=DefaultSpecies(
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genome=DefaultGenome(
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num_inputs=3,
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num_outputs=1,
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max_nodes=50,
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max_conns=100,
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),
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pop_size=10000,
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species_size=10,
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compatibility_threshold=3.5,
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),
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),
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problem=XOR3d(),
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generation_limit=10000,
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fitness_target=-1e-8
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)
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# initialize state
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state = pipeline.setup()
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# print(state)
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# run until terminate
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state, best = pipeline.auto_run(state)
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# show result
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pipeline.show(state, best)
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```
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Simple Example for RL envs in Brax (Ant):
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```python
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from pipeline import Pipeline
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from algorithm.neat import *
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from problem.rl_env import BraxEnv
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from utils import Act
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if __name__ == '__main__':
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pipeline = Pipeline(
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algorithm=NEAT(
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species=DefaultSpecies(
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genome=DefaultGenome(
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num_inputs=27,
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num_outputs=8,
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max_nodes=50,
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max_conns=100,
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node_gene=DefaultNodeGene(
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activation_options=(Act.tanh,),
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activation_default=Act.tanh,
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)
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),
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pop_size=1000,
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species_size=10,
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),
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),
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problem=BraxEnv(
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env_name='ant',
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),
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generation_limit=10000,
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fitness_target=5000
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)
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# initialize state
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state = pipeline.setup()
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# print(state)
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# run until terminate
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state, best = pipeline.auto_run(state)
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```
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more examples are in `tensorneat/examples`.
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## Community & Support
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- Engage in discussions and share your experiences on [GitHub Discussion Board](https://github.com/EMI-Group/evox/discussions).
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- Join our QQ group (ID: 297969717).
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## Citing TensorNEAT
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If you use TensorNEAT in your research and want to cite it in your work, please use:
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```
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@article{tensorneat,
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title = {{Tensorized} {NeuroEvolution} of {Augmenting} {Topologies} for {GPU} {Acceleration}},
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author = {Wang, Lishuang and Zhao, Mengfei and Liu, Enyu and Sun, Kebin and Cheng, Ran},
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booktitle = {Proceedings of the Genetic and Evolutionary Computation Conference (GECCO)},
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year = {2024}
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}
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