| Name | pi-zero-pytorch JSON |
| Version |
0.0.2
JSON |
| download |
| home_page | None |
| Summary | π0 in Pytorch |
| upload_time | 2024-11-05 15:25:35 |
| maintainer | None |
| docs_url | None |
| author | None |
| requires_python | >=3.9 |
| license | MIT License Copyright (c) 2024 Phil Wang Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| keywords |
artificial intelligence
deep learning
flow policy
robotic foundation model
transformers
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
|
| coveralls test coverage |
No coveralls.
|
<img src="./fig3.png" width="400px"></img>
## pi-zero-pytorch (wip)
Implementation of <a href="https://www.physicalintelligence.company/blog/pi0">π₀</a> the robotic foundation model architecture proposed by Physical Intelligence
Summary of this work would be that it is a simplified <a href="https://github.com/lucidrains/transfusion-pytorch">Transfusion</a> (Zhou et al.) with influence from <a href="https://arxiv.org/abs/2403.03206">Stable Diffusion 3</a> (Esser et al.), mainly the adoption of flow matching instead of diffusion for policy generation, as well as the separation of parameters (<a href="https://github.com/lucidrains/mmdit/blob/main/mmdit/mmdit_pytorch.py#L43">Joint Attention</a> from mmDIT).
## Install
```bash
$ pip install pi-zero-pytorch
```
## Usage
```python
import torch
from pi_zero_pytorch import π0
model = π0(
dim = 512,
dim_action_input = 6,
dim_joint_state = 12,
num_tokens = 20_000
)
vision = torch.randn(1, 1024, 512)
commands = torch.randint(0, 20_000, (1, 1024))
joint_state = torch.randn(1, 12)
actions = torch.randn(1, 32, 6)
loss, _ = model(vision, commands, joint_state, actions)
loss.backward()
# after much training
sampled_actions = model(vision, commands, joint_state, trajectory_length = 32) # (1, 32, 6)
```
## Citation
```bibtex
@misc{Black2024,
author = {Kevin Black, Noah Brown, Danny Driess, Adnan Esmail, Michael Equi, Chelsea Finn, Niccolo Fusai, Lachy Groom, Karol Hausman, Brian Ichter, Szymon Jakubczak, Tim Jones, Liyiming Ke, Sergey Levine, Adrian Li-Bell, Mohith Mothukuri, Suraj Nair, Karl Pertsch, Lucy Xiaoyang Shi, James Tanner, Quan Vuong, Anna Walling, Haohuan Wang, Ury Zhilinsky},
url = {https://www.physicalintelligence.company/download/pi0.pdf}
}
```
```bibtex
@inproceedings{Zhou2024ValueRL,
title = {Value Residual Learning For Alleviating Attention Concentration In Transformers},
author = {Zhanchao Zhou and Tianyi Wu and Zhiyun Jiang and Zhenzhong Lan},
year = {2024},
url = {https://api.semanticscholar.org/CorpusID:273532030}
}
```
```bibtex
@inproceedings{Yao2024FasterDiTTF,
title = {FasterDiT: Towards Faster Diffusion Transformers Training without Architecture Modification},
author = {Jingfeng Yao and Wang Cheng and Wenyu Liu and Xinggang Wang},
year = {2024},
url = {https://api.semanticscholar.org/CorpusID:273346237}
}
```
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"description": "<img src=\"./fig3.png\" width=\"400px\"></img>\n\n## pi-zero-pytorch (wip)\n\nImplementation of <a href=\"https://www.physicalintelligence.company/blog/pi0\">\u03c0\u2080</a> the robotic foundation model architecture proposed by Physical Intelligence\n\nSummary of this work would be that it is a simplified <a href=\"https://github.com/lucidrains/transfusion-pytorch\">Transfusion</a> (Zhou et al.) with influence from <a href=\"https://arxiv.org/abs/2403.03206\">Stable Diffusion 3</a> (Esser et al.), mainly the adoption of flow matching instead of diffusion for policy generation, as well as the separation of parameters (<a href=\"https://github.com/lucidrains/mmdit/blob/main/mmdit/mmdit_pytorch.py#L43\">Joint Attention</a> from mmDIT).\n\n## Install\n\n```bash\n$ pip install pi-zero-pytorch\n```\n\n## Usage\n\n```python\nimport torch\nfrom pi_zero_pytorch import \u03c00\n\nmodel = \u03c00(\n dim = 512,\n dim_action_input = 6,\n dim_joint_state = 12,\n num_tokens = 20_000\n)\n\nvision = torch.randn(1, 1024, 512)\ncommands = torch.randint(0, 20_000, (1, 1024))\njoint_state = torch.randn(1, 12)\nactions = torch.randn(1, 32, 6)\n\nloss, _ = model(vision, commands, joint_state, actions)\nloss.backward()\n\n# after much training\n\nsampled_actions = model(vision, commands, joint_state, trajectory_length = 32) # (1, 32, 6)\n```\n\n## Citation\n\n```bibtex\n@misc{Black2024,\n author = {Kevin Black, Noah Brown, Danny Driess, Adnan Esmail, Michael Equi, Chelsea Finn, Niccolo Fusai, Lachy Groom, Karol Hausman, Brian Ichter, Szymon Jakubczak, Tim Jones, Liyiming Ke, Sergey Levine, Adrian Li-Bell, Mohith Mothukuri, Suraj Nair, Karl Pertsch, Lucy Xiaoyang Shi, James Tanner, Quan Vuong, Anna Walling, Haohuan Wang, Ury Zhilinsky},\n url = {https://www.physicalintelligence.company/download/pi0.pdf}\n}\n```\n\n```bibtex\n@inproceedings{Zhou2024ValueRL,\n title = {Value Residual Learning For Alleviating Attention Concentration In Transformers},\n author = {Zhanchao Zhou and Tianyi Wu and Zhiyun Jiang and Zhenzhong Lan},\n year = {2024},\n url = {https://api.semanticscholar.org/CorpusID:273532030}\n}\n```\n\n```bibtex\n@inproceedings{Yao2024FasterDiTTF,\n title = {FasterDiT: Towards Faster Diffusion Transformers Training without Architecture Modification},\n author = {Jingfeng Yao and Wang Cheng and Wenyu Liu and Xinggang Wang},\n year = {2024},\n url = {https://api.semanticscholar.org/CorpusID:273346237}\n}\n```\n",
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