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Implementation of: "Exploring Randomly Wired Neural Networks for Image Recognition"
| Date | Stars |
|---|---|
| 2026-07-31 | 684 |
| 2026-08-05 | 684 |
| 2026-08-06 | 684 |
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# RandWireNN
[](https://paperswithcode.com/sota/image-classification-imagenet-image-reco?p=exploring-randomly-wired-neural-networks-for)
Unofficial PyTorch Implementation of:
[Exploring Randomly Wired Neural Networks for Image Recognition](https://arxiv.org/abs/1904.01569).
## Results
Validation result on Imagenet(ILSVRC2012) dataset:
| Top 1 accuracy (%) | Paper | Here |
| -------------------------- | ----- | ---- |
| RandWire-WS(4, 0.75), C=78 | 74.7 | 69.2 |
- (2019.06.26) 69.2%: 250 epoch with SGD optimizer, lr 0.1, momentum 0.9, weight decay 5e-5, cosine annealing lr schedule (no label smoothing applied, see loss curve below)
- (2019.04.14) 62.6%: 396k steps with SGD optimizer, lr 0.1, momentum 0.9, weigth decay 5e-5, lr decay about 0.1 at 300k
- (2019.04.12) 62.6%: 416k steps with Adabound optimizer, initial lr 0.001(decayed about 0.1 at 300k), final lr 0.1, no weight decay
- (2019.04) [JiaminRen's implementation](https://github.com/JiaminRen/RandWireNN) reached accuarcy which is almost close to paper, using identical training strategy with paper.
- (2019.04.10) 63.0%: 450k steps with Adam optimizer, initial lr 0.001, lr decay about 0.1 for every 150k step
- (2019.04.07) 56.8%: Training took about 16 hours on AWS p3.2xlarge(NVIDIA V100). 120k steps were done in total, and Adam optimizer with `lr=0.001, batch_size=128` was used with no learning rate decay.
## Dependencies
This code was tested on Python 3.6 with PyTorch 1.0.1. Other packages can be installed by:
```bash
pip install -r requirements.txt
```
## Generate random DAG
```bash
cd model/graphs
python er.py -p 0.2 -o er-02.txt # Erdos-Renyi
python ba.py -m 7 -o ba-7.txt # Barbasi-Albert
python ws.py -k 4 -p 0.75 ws-4-075.txt # Watts-Strogatz
# number of nodes: -n option
```
All outputs from commands shown above will produce txt file like:
```
(number of nodes)
(number of edges)
(lines, each line representing edges)
```
## Train RandWireNN
1. Download ImageNet dataset. Train/val folder should contain list of 1,000 directories, each containing list of images for corresponding category. For validation image files, this script can be useful: https://raw.githubusercontent.com/soumith/imagenetloader.torch/master/valprep.sh
1. Edit `config.yaml`
```bash
cd config
cp default.yaml config.yaml
vim config.yaml # specify data directory, graph txt files
```
1. Train
*Note.* Validation performed here won't use entire test set, since it will consume much time. (about 3 min.)
```
python trainer.py -c [config yaml] -m [name]
```
1. View tensorboardX
```
tensorboard --logdir ./logs
```
## Validation
Run full validation:
```bash
python validation.py -c [config path] -p [checkpoint path]
```
This will show accuracy and average test loss of the trained model.
## Author
Seungwon Park / [@seungwonpark](http://swpark.me)
## License
Apache License 2.0
Excerpt of 3,139 characters
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Seung-won Park · @moloco · United States
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Michael Poli · Radical Numerics
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Ross Taylor · United Kingdom
1
Would you bet a product on this? Bounded 0–100 and slow moving.
matched fp:428cc7ad22e8f78b, llm:Repository description and README: 'Unofficial PyTorch Implementation of: Exploring Randomly Wired Neural Networks for Image Recognition'; topics: imagenet, neural-architecture-search; contains code to generate random graph topologies (er/ba/ws) and PyTorch models for ImageNet.
matched fp:428cc7ad22e8f78b, llm:Repository description and README: 'Unofficial PyTorch Implementation of: Exploring Randomly Wired Neural Networks for Image Recognition'; topics: imagenet, neural-architecture-search; contains code to generate random graph topologies (er/ba/ws) and PyTorch models for ImageNet.
matched fp:428cc7ad22e8f78b, llm:Repository description and README: 'Unofficial PyTorch Implementation of: Exploring Randomly Wired Neural Networks for Image Recognition'; topics: imagenet, neural-architecture-search; contains code to generate random graph topologies (er/ba/ws) and PyTorch models for ImageNet.