Existing structured pruning typically involves multi-stage training procedures that often demand heavy computation. We propose an efficient framework for one-cycle structured pruning that integrates pre-training, pruning, and fine-tuning into a single training cycle. The core idea is to search for the optimal sub-network during the early stages of network training, guided by norm-based group saliency criteria and structured sparsity regularization. We introduce a novel pruning indicator that determines the stable pruning epoch by assessing the similarity between evolving pruning sub-networks across consecutive training epochs. Extensive experiments on CIFAR-10/100 and ImageNet using VGGNet, ResNet, MobileNet, and ViT architectures demonstrate state-of-the-art accuracy while being one of the most efficient pruning frameworks in terms of training time.
@article{kil2025ocspruner,title={One-cycle Structured Pruning with Stability Driven Structure Search},author={Ghimire, Deepak and Kil, Dayoung and Jeong, Seonghwan and Park, Jaesik and Kim, Seong-heum},journal={IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)},year={2026},}
2024
ICCAS
A Study of Structured Pruning for Hybrid Neural Networks
We explore the impact of structure pruning on model compression for CNN–transformer hybrid architectures. Our approach automatically selects filter pruning criteria from a specified pool based on magnitude or similarity, and adjusts the specific pruning layer in each iteration based on the network’s overall loss on a small subset of training data. Experiments on VGGNet, ResNet, and MobileNet with CIFAR-10 and ImageNet validate the effectiveness of the proposed method.
@inproceedings{ghimire2024structured,title={A Study of Structured Pruning for Hybrid Neural Networks},author={Ghimire, Deepak and Kil, Dayoung and Kim, Seong-heum},booktitle={24th International Conference on Control, Automation and Systems (ICCAS)},pages={1110--1113},year={2024},doi={10.23919/ICCAS63016.2024.10773379},}
2022
Electronics
A Survey on Efficient Convolutional Neural Networks and Hardware Acceleration
Over the past decade, deep-learning-based representations have demonstrated remarkable performance in academia and industry. In this review, to improve the efficiency of deep learning research, we focus on three aspects: quantized/binarized models, optimized architectures, and resource-constrained systems. Recent advances in light-weight deep learning models and network architecture search (NAS) algorithms are reviewed, starting with simplified layers and efficient convolution and including new architectural design and optimization.
@article{ghimire2022survey,title={A Survey on Efficient Convolutional Neural Networks and Hardware Acceleration},author={Ghimire, Deepak and Kil, Dayoung and Kim, Seong-heum},journal={Electronics},volume={11},number={6},pages={945},year={2022},publisher={MDPI},doi={10.3390/electronics11060945},}
ICCAS
Lightweight Room Layout Estimation using a Single Panoramic Image
We suggest a lightweight deep representation for room layout estimation using a single panoramic image. Based on HorizonNet, we replace the feature extraction networks of ResNet and LSTM with a platform-aware neural architecture search model (MnasNet) and a gated recurrent unit (GRU). The proposed architecture utilizes sampling-based optimization and uses only about 1/2 fewer parameters than the existing network.
@inproceedings{kil2022iccas,title={Lightweight Room Layout Estimation using a Single Panoramic Image},author={Kil, Dayoung and Kim, Seong-heum},booktitle={22nd International Conference on Control, Automation and Systems (ICCAS)},pages={1951--1953},year={2022},doi={10.23919/ICCAS55662.2022.10003901},}
ICROS
Lightweight Deep Learning for Room Layout Estimation with a Single Panoramic Image
We present a lightweight deep learning model for room layout estimation. In contrast to the baseline HorizonNet that uses ResNet+LSTM, we focus on MnasNet and GRU with sampling-based hyperparameter optimization. The lightweight model required approximately half as many parameters compared to the original method while achieving competitive performance on Stanford2D3D, PanoContext, and a real-world panorama dataset.
@article{kil2022icros,title={Lightweight Deep Learning for Room Layout Estimation with a Single Panoramic Image},author={Kil, Dayoung and Kim, Seong-heum},journal={Journal of Institute of Control, Robotics and Systems (KCI)},volume={28},number={10},pages={868--873},year={2022},}
