A pruning-then-quantization model compression framework for facial emotion recognition

Facial emotion recognition achieves great success with the help of large neural models but also fails to be applied in practical situations due to the large model size of neural methods. To bridge this gap, in this paper, we combine two mainstream model compression methods (pruning and quantization) together, and propose a pruning-then-quantization framework to compress the neural models for facial emotion recognition tasks. Experiments on three datasets show that our model could achieve a high model compression ratio and maintain the model's high performance well. Besides, We analyze the layer-wise compression performance of our proposed framework to explore its effect and adaptability in fine-grained modules.