SSR

structured sparsity regularization

we propose a novel filter pruning scheme, termed structured sparsity regularization (SSR), to simultaneously speedup the computation and reduce the memory overhead of CNN, which can be well supported by various off-the-shelf deep learning libraries.

Citation

If you find our project useful in your research, please consider citing:

@article{lin2019towards,
  title={Towards Compact ConvNets via Structure-Sparsity Regularized Filter Pruning},
  author={Lin, Shaohui and Ji, Rongrong and Li, Yuchao and Deng, Cheng and Li, Xuelong},
  journal={arXiv preprint arXiv:1901.07827},
  year={2019}
}

Running

1. download dataset (mnist)

python dataset/download_and_convert_mnist.py 

2. training and testing

./run.sh

Experimental results

Method	#Filter/Node	FLOPs	#Param.	CPU(ms)	Speedup	Top-1 Err.↑
LeNet	20-50-500	2.3M	0.43M	26.4	1×	0%
SSL[23]	3-15-175	162K	45K	7.3	3.62×	0.05%
SSL[23]	2-11-134	91K	26K	6.0	4.40×	0.20%
TE[42]	2-12-127	95K	27K	5.7	4.62×	0.02%
TE[42]	2-7-99	65K	13K	5.5	4.80×	0.20%
CGES[57]	-	332K	156K	-	-	0.01%
CGES+[57]	-	-	43K	-	-	0.04%
GSS[43]	3-11-109	119K	21K	6.7	3.94×	0.08%
GSS[43]	3-8-82	95K	12K	5.6	4.71×	0.20%
SSR-L2,1	3-11-108	118K	21K	6.6	4.00×	0.05%
SSR-L2,1	2-8-77	67K	11K	4.8	5.50×	0.18%

Note

[23] W. Wen, C. Wu, Y. Wang, et al. Learning structured sparsity in deep neural networks. In NIPS, 2016.

[42] P. Molchanov, S. Tyree, T. Karras, et al. Pruning convolutional neural networks for resource efficient inference. In ICLR, 2017.

[43] A. Torfi and R. A. Shirvani. Attention-based guided structured sparsity of deep neural networks. arXiv preprint arXiv:1802.09902, 2018.

[57] J. Yoon and S. J. Hwang. Combined group and exclusive sparsity for deep neural networks. In ICML, 2017.